├── .github └── workflows │ └── build.yml ├── LICENSE ├── README.md ├── hardware ├── README.md ├── gerbers │ ├── spi2par2019_backpack.zip │ └── spi2par2019_faithful.zip ├── spi2par2019backpack.brd ├── spi2par2019backpack.sch ├── spi2par2019faithful.brd └── spi2par2019faithful.sch ├── images ├── arduino.jpg ├── boards.jpg ├── gerbers.png ├── ingame_temp.jpg ├── prog1.jpg ├── prog2.jpg ├── prog3.jpg ├── prog4.jpg ├── prog5.jpg ├── prog6.jpg ├── prog7.jpg ├── spi2par_connection.jpg └── spi2par_connection2.jpg ├── schematic_spi2par2019backpack.pdf ├── schematic_spi2par2019faithful.pdf ├── spi2par2019.ino ├── src └── SMWire │ ├── SMWire.cpp │ ├── SMWire.h │ └── utility │ ├── twi.c │ └── twi.h ├── xboxsmbus.h └── xeniumspi.h /.github/workflows/build.yml: -------------------------------------------------------------------------------- 1 | name: Build 2 | 3 | on: 4 | push: 5 | branches: [ master ] 6 | pull_request: 7 | branches: [ master ] 8 | workflow_dispatch: 9 | 10 | jobs: 11 | build: 12 | runs-on: ubuntu-latest 13 | 14 | steps: 15 | - name: Checkout repo 16 | uses: actions/checkout@v2 17 | 18 | - name: Set up Arduino CLI 19 | uses: arduino/setup-arduino-cli@v1 20 | 21 | - name: Install platform 22 | run: | 23 | arduino-cli core update-index 24 | arduino-cli core install arduino:avr 25 | arduino-cli lib install LiquidCrystal 26 | 27 | - name: Compile Sketch 28 | run: arduino-cli compile -b arduino:avr:leonardo --warnings "default" 29 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # spi2par2019 2 | ![Build](https://github.com/Ryzee119/spi2par2019/workflows/Build/badge.svg) 3 | ## What is it? 4 | This is a recreation of a legacy Original Xbox adaptor that allowed you to use extremely common and cheap HD44780 compliant character LCD displays with the Xenium modchip SPI interface. The legacy adaptor was called 'spi2par' and has long since been out of production and extremely hard to come by. 5 | 6 | I have never had one either, so this design has been made from the ground up. 7 | 8 | There are two PCB layouts in this repository: 9 | 10 | 1. More faithful to the legacy spi2par design. 11 | 2. An LCD backpack design that takes advantage of the standard pinout of most HD44780 LCD displays to minimise the amount of wiring needed. 12 | 13 | These two layouts are shown in the below photo. The LCD backpack has two pin arrangements so can be used on the two common LCD pin header layouts as shown installed. The intent is to make this as open and easily accessible to anyone with minimal experience in soldering and programming. 14 | spi2par2019 15 | 16 | ## Features 17 | 1. Converts the Xenium SPI interface to HD44780 compliant parallel LCDs. These are extremely cheap and readily available LCD modules. 18 | 2. Software controllable brightness 19 | 3. Software controllable contrast 20 | 4. This feature never existed in the legacy. You can connect two additional wires to the motherboard LPC header, and the board will read fan speed and MB/CPU temperatures directly from the Xbox System Management bus. It will display and update this mid-game. Traditionally the LCD will just pause until you renter the dashboard. Example below: 21 | ingame 22 | 23 | 24 | ## Assembly and Materials Required 25 | There is two ways you can do this. Option 1 is the intended way and has a PCB daughter board to make installation easier.
The second option uses less components but requires more wiring. 26 | 27 | #### Option 1 - Arduino module and PCB adaptor 28 | The standard design 29 | 30 | |Part|Qty | Possible Source| 31 | |--|--|--| 32 | | Ryzee119's spi2par2019 PCB |1| OSHPark (Bit expensive, 3 boards): [spi2par2019backpack](https://oshpark.com/shared_projects/HGCRYTFI) OR
[spi2par2019faithful](https://oshpark.com/shared_projects/7YvM7Fwu)
Or, Download the required zip file from the [Gerbers Folder](https://github.com/Ryzee119/spi2par2019/tree/master/hardware/gerbers) and upload the zip file to their online ordering service. Use the following PCB properties:
`2 layers, 45x30mm, 1.6mm thick, HASL, 1oz copper, no castellated holes`| 33 | | Arduino Pro Micro Leonardo 5V/16Mhz |1| [Any clones will work](https://www.aliexpress.com/item/New-Pro-Micro-for-arduino-ATmega32U4-5V-16MHz-Module-with-2-row-pin-header-For-Leonardo/32768308647.html). Make sure they're the 5V/16Mhz variant. | 34 | | N-Channel MOSFET 2N7002 SOT23 at position Q1| 1 |Find anywhere convenient
[Digikey](https://www.digikey.com.au/short/p4zbn8)
[Aliexpress](https://www.aliexpress.com/item/Free-Shipping-200PCS-2N7002-MOSFET-N-CH-60V-300MA-SOT-23/897983645.html) | 35 | | JST SH1.0 10 pin 1mm connector (To connect to Xenium) | 1 |Digikey: [Connector](https://www.digikey.com.au/product-detail/en/jst-sales-america-inc/SHR-10V-S-B/455-1385-ND/759874) + 3x[Jumpers](https://www.digikey.com.au/product-detail/en/jst-sales-america-inc/ASSHSSH28K152/455-3076-ND/6009452) OR
Aliexpress: [Connector with Jumpers (Get the 10P one)](https://www.aliexpress.com/item/5PCS-100MM-SH-1-0-Wire-Cable-Connector-DIY-SH1-0-JST-2-3-4-5/32952366214.html)| 36 | | General Hook-up Wire 26AWG or so| A metre or two |-| 37 | 38 | #### Option 2 - Arduino module only 39 | No extra PCB required, no backlight control, slightly harder soldering 40 | 41 | |Part|Qty | Possible Source| 42 | |--|--|--| 43 | | Arduino Pro Micro Leonardo 5V/16Mhz |1| [Any clones will work](https://www.aliexpress.com/item/32768308647.html). Make sure they're the 5V/16Mhz variant. | 44 | | JST SH1.0 10 pin 1mm connector (To connect to Xenium) | 1 |Digikey: [Connector](https://www.digikey.com.au/product-detail/en/jst-sales-america-inc/SHR-10V-S-B/455-1385-ND/759874) + 3x[Jumpers](https://www.digikey.com.au/product-detail/en/jst-sales-america-inc/ASSHSSH28K152/455-3076-ND/6009452) OR
Aliexpress: [Connector with Jumpers (Get the 10P one)](https://www.aliexpress.com/item/32952366214.html)| 45 | | General Hook-up Wire 26AWG or so| A metre or two |-| 46 | 47 | ## Programming 48 | 1. Clone this repository to your PC 49 | 2. Download then install the [Arduino IDE](https://www.arduino.cc/en/Main/Software). 50 | 3. Copy `spi2par2019` to your Sketch folder and open the `.ino` file. 51 | 4. Set the Board Type the `Arduino Leonardo` and the comport correctly. 52 | 5. Compile by clicking the tick in the top left. 53 | 5. Confirm it has compiled successfully from the console output. 54 | 6. Connect a MicroUSB cable between the Arduino Module and the PC. 55 | 7. Click the upload button and confirm successful. The LCD backlight should come on but no text will be displayed until connected to a Xenium or the Xbox SMBus. 56 | 57 | ## Installation 58 | spi2par2019 connection diagram 59 | 60 | ## Alternative Installation 61 | spi2par2019 connection diagram alt 62 | 63 | ## Further Setup 64 | If using XBMC, there appears to be a bug in the way the large text is printed to the LCD screen when used with a Xenium. This can cause the LCD screen to stop working when the screen saver starts. 65 | It is recommended to edit the /system/UserData/LCD.xml file and replace instances of `LCD.TimeWide21` or `LCD.TimeWide22` with something different. Perhaps `LCD.cputemperature` and `LCD.gputemperature` or if you want time, use the standard font (`System.Time`). 66 | -------------------------------------------------------------------------------- /hardware/README.md: -------------------------------------------------------------------------------- 1 | 2 | 3 | # spi2par2019 4 | 5 | All PCBs have been design using [Autodesk Eagle](https://www.autodesk.com/products/eagle/free-download) software. 6 | This has been released as open source hardware released under the CERN Open Hardware Licence v1.2,


7 | 8 | CERN Open Hardware Licence v1.2 9 | 10 | Preamble 11 | 12 | Through this CERN Open Hardware Licence ("CERN OHL") version 1.2, CERN 13 | wishes to provide a tool to foster collaboration and sharing among 14 | hardware designers. The CERN OHL is copyright CERN. Anyone is welcome 15 | to use the CERN OHL, in unmodified form only, for the distribution of 16 | their own Open Hardware designs. Any other right is reserved. Release 17 | of hardware designs under the CERN OHL does not constitute an 18 | endorsement of the licensor or its designs nor does it imply any 19 | involvement by CERN in the development of such designs. 20 | 21 | 1. Definitions 22 | 23 | In this Licence, the following terms have the following meanings: 24 | 25 | “Licence” means this CERN OHL. 26 | 27 | “Documentation” means schematic diagrams, designs, circuit or circuit 28 | board layouts, mechanical drawings, flow charts and descriptive text, 29 | and other explanatory material that is explicitly stated as being made 30 | available under the conditions of this Licence. The Documentation may 31 | be in any medium, including but not limited to computer files and 32 | representations on paper, film, or any other media. 33 | 34 | “Documentation Location” means a location where the Licensor has 35 | placed Documentation, and which he believes will be publicly 36 | accessible for at least three years from the first communication to 37 | the public or distribution of Documentation. 38 | 39 | “Product” means either an entire, or any part of a, device built using 40 | the Documentation or the modified Documentation. 41 | 42 | “Licensee” means any natural or legal person exercising rights under 43 | this Licence. 44 | 45 | “Licensor” means any natural or legal person that creates or modifies 46 | Documentation and subsequently communicates to the public and/ or 47 | distributes the resulting Documentation under the terms and conditions 48 | of this Licence. 49 | 50 | A Licensee may at the same time be a Licensor, and vice versa. 51 | 52 | Use of the masculine gender includes the feminine and neuter genders 53 | and is employed solely to facilitate reading. 54 | 55 | 2. 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The Licensee may communicate to the public and distribute the 100 | modified Documentation (thereby in addition to being a Licensee also 101 | becoming a Licensor), always provided that he shall: 102 | 103 | a) comply with section 3.1; 104 | 105 | b) cause the modified Documentation to carry prominent notices stating 106 | that the Licensee has modified the Documentation, with the date and 107 | description of the modifications; 108 | 109 | c) cause the modified Documentation to carry a new Documentation 110 | Location notice if the original Documentation provided for one; 111 | 112 | d) make available the modified Documentation at the same level of 113 | abstraction as that of the Documentation, in the preferred format for 114 | making modifications to it (e.g. the native format of the CAD tool as 115 | applicable), and in the event that format is proprietary, in a format 116 | viewable with a tool licensed under an OSI-approved license if the 117 | proprietary tool can create it; and 118 | 119 | e) license the modified Documentation under the terms and conditions 120 | of this Licence or, where applicable, a later version of this Licence 121 | as may be issued by CERN. 122 | 123 | 3.5. The Licence includes a non-exclusive licence to those patents or 124 | registered designs that are held by, under the control of, or 125 | sub-licensable by the Licensor, to the extent necessary to make use of 126 | the rights granted under this Licence. The scope of this section 3.5 127 | shall be strictly limited to the parts of the Documentation or 128 | modified Documentation created by the Licensor. 129 | 130 | 4. Manufacture and distribution of Products 131 | 132 | 4.1. The Licensee may manufacture or distribute Products always 133 | provided that, where such manufacture or distribution requires a 134 | licence under this Licence the Licensee provides to each recipient of 135 | such Products an easy means of accessing a copy of the Documentation 136 | or modified Documentation, as applicable, as set out in section 3. 137 | 138 | 4.2. The Licensee is invited to inform any Licensor who has indicated 139 | his wish to receive this information about the type, quantity and 140 | dates of production of Products the Licensee has (had) manufactured 141 | 142 | 5. Warranty and liability 143 | 144 | 5.1. DISCLAIMER – The Documentation and any modified Documentation are 145 | provided "as is" and any express or implied warranties, including, but 146 | not limited to, implied warranties of merchantability, of satisfactory 147 | quality, non-infringement of third party rights, and fitness for a 148 | particular purpose or use are disclaimed in respect of the 149 | Documentation, the modified Documentation or any Product. The Licensor 150 | makes no representation that the Documentation, modified 151 | Documentation, or any Product, does or will not infringe any patent, 152 | copyright, trade secret or other proprietary right. The entire risk as 153 | to the use, quality, and performance of a Product shall be with the 154 | Licensee and not the Licensor. This disclaimer of warranty is an 155 | essential part of this Licence and a condition for the grant of any 156 | rights granted under this Licence. The Licensee warrants that it does 157 | not act in a consumer capacity. 158 | 159 | 5.2. LIMITATION OF LIABILITY – The Licensor shall have no liability 160 | for direct, indirect, special, incidental, consequential, exemplary, 161 | punitive or other damages of any character including, without 162 | limitation, procurement of substitute goods or services, loss of use, 163 | data or profits, or business interruption, however caused and on any 164 | theory of contract, warranty, tort (including negligence), product 165 | liability or otherwise, arising in any way in relation to the 166 | Documentation, modified Documentation and/or the use, manufacture or 167 | distribution of a Product, even if advised of the possibility of such 168 | damages, and the Licensee shall hold the Licensor(s) free and harmless 169 | from any liability, costs, damages, fees and expenses, including 170 | claims by third parties, in relation to such use. 171 | 172 | 6. General 173 | 174 | 6.1. Except for the rights explicitly granted hereunder, this Licence 175 | does not imply or represent any transfer or assignment of intellectual 176 | property rights to the Licensee. 177 | 178 | 6.2. The Licensee shall not use or make reference to any of the names 179 | (including acronyms and abbreviations), images, or logos under which 180 | the Licensor is known, save in so far as required to comply with 181 | section 3. Any such permitted use or reference shall be factual and 182 | shall in no event suggest any kind of endorsement by the Licensor or 183 | its personnel of the modified Documentation or any Product, or any 184 | kind of implication by the Licensor or its personnel in the 185 | preparation of the modified Documentation or Product. 186 | 187 | 6.3. CERN may publish updated versions of this Licence which retain 188 | the same general provisions as this version, but differ in detail so 189 | far this is required and reasonable. New versions will be published 190 | with a unique version number. 191 | 192 | 6.4. This Licence shall terminate with immediate effect, upon written 193 | notice and without involvement of a court if the Licensee fails to 194 | comply with any of its terms and conditions, or if the Licensee 195 | initiates legal action against Licensor in relation to this 196 | Licence. Section 5 shall continue to apply. -------------------------------------------------------------------------------- /hardware/gerbers/spi2par2019_backpack.zip: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/hardware/gerbers/spi2par2019_backpack.zip -------------------------------------------------------------------------------- /hardware/gerbers/spi2par2019_faithful.zip: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/hardware/gerbers/spi2par2019_faithful.zip -------------------------------------------------------------------------------- /hardware/spi2par2019faithful.brd: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 | 169 | 170 | 171 | 172 | 173 | 174 | 175 | 176 | 177 | 178 | 179 | 180 | 181 | 182 | 183 | 184 | 185 | 186 | 187 | 188 | 189 | 190 | 191 | 192 | 193 | Ryzee119 194 | SMBUS 195 | XENIUM 196 | SPI 197 | Convert Xenium SPI Interface 198 | to HD44780 Compliant Parallel LCD 199 | https://github.com/Ryzee119/spi2par2019 200 | Ryzee119 201 | spi2par2019 202 | 203 | 204 | 205 | 206 | 207 | 208 | 209 | 210 | 211 | 212 | 213 | 214 | 215 | 216 | 217 | 218 | 219 | 220 | 221 | 222 | 223 | 224 | 225 | 226 | 227 | 228 | 229 | 230 | 231 | 232 | 233 | 234 | 235 | 236 | 237 | 238 | 239 | Arduino Pro Micro 5V 240 | 241 | 242 | 243 | 244 | 245 | 246 | 247 | 248 | 249 | 250 | 251 | <b>Single Pads</b><p> 252 | <author>Created by librarian@cadsoft.de</author> 253 | 254 | 255 | <b>SMD PAD</b> 256 | 257 | >VALUE 258 | >NAME 259 | 260 | 261 | 262 | 263 | SMD PAD 264 | 265 | 266 | 267 | 268 | 269 | 270 | 271 | <b>Zetex Power MOS FETs, Bridges, Diodes</b><p> 272 | http://www.zetex.com<p> 273 | <author>Created by librarian@cadsoft.de</author> 274 | 275 | 276 | <b>Small Outline Transistor</b> 277 | 278 | 279 | 280 | 281 | 282 | 283 | 284 | >VALUE 285 | >NAME 286 | 287 | 288 | 289 | 290 | 291 | 292 | 293 | Small Outline Transistor 294 | 295 | 296 | 297 | 298 | 299 | 300 | 301 | 302 | 303 | 304 | 305 | 306 | 307 | 308 | 309 | 310 | <b>EAGLE Design Rules</b> 311 | <p> 312 | Die Standard-Design-Rules sind so gewählt, dass sie für 313 | die meisten Anwendungen passen. Sollte ihre Platine 314 | besondere Anforderungen haben, treffen Sie die erforderlichen 315 | Einstellungen hier und speichern die Design Rules unter 316 | einem neuen Namen ab. 317 | <b>EAGLE Design Rules</b> 318 | <p> 319 | The default Design Rules have been set to cover 320 | a wide range of applications. Your particular design 321 | may have different requirements, so please make the 322 | necessary adjustments and save your customized 323 | design rules under a new name. 324 | <b>Elecrow EAGLE Design Rules</b> 325 | 326 | 327 | 328 | 329 | 330 | 331 | 332 | 333 | 334 | 335 | 336 | 337 | 338 | 339 | 340 | 341 | 342 | 343 | 344 | 345 | 346 | 347 | 348 | 349 | 350 | 351 | 352 | 353 | 354 | 355 | 356 | 357 | 358 | 359 | 360 | 361 | 362 | 363 | 364 | 365 | 366 | 367 | 368 | 369 | 370 | 371 | 372 | 373 | 374 | 375 | 376 | 377 | 378 | 379 | 380 | 381 | 382 | 383 | 384 | 385 | 386 | 387 | 388 | 389 | 390 | 391 | 392 | 393 | 394 | 395 | 396 | 397 | 398 | 399 | 400 | 401 | 402 | 403 | 404 | 405 | 406 | 407 | 408 | 409 | 410 | 411 | 412 | 413 | 414 | 415 | 416 | 417 | 418 | 419 | 420 | 421 | 422 | 423 | 424 | 425 | 426 | 427 | 428 | 429 | 430 | 431 | 432 | 433 | 434 | 435 | 436 | 437 | 438 | 439 | 440 | 441 | 442 | 443 | 444 | 445 | 446 | 447 | 448 | 449 | 450 | 451 | 452 | 453 | 454 | 455 | 456 | 457 | 458 | 459 | 460 | 461 | 462 | 463 | 464 | 465 | 466 | 467 | 468 | 469 | 470 | 471 | 472 | 473 | 474 | 475 | 476 | 477 | 478 | 479 | 480 | 481 | 482 | 483 | 484 | 485 | 486 | 487 | 488 | 489 | 490 | 491 | 492 | 493 | 494 | 495 | 496 | 497 | 498 | 499 | 500 | 501 | 502 | 503 | 504 | 505 | 506 | 507 | 508 | 509 | 510 | 511 | 512 | 513 | 514 | 515 | 516 | 517 | 518 | 519 | 520 | 521 | 522 | 523 | 524 | 525 | 526 | 527 | 528 | 529 | 530 | 531 | 532 | 533 | 534 | 535 | 536 | 537 | 538 | 539 | 540 | 541 | 542 | 543 | 544 | 545 | 546 | 547 | 548 | 549 | 550 | 551 | 552 | 553 | 554 | 555 | 556 | 557 | 558 | 559 | 560 | 561 | 562 | 563 | 564 | 565 | 566 | 567 | 568 | 569 | 570 | 571 | 572 | 573 | 574 | 575 | 576 | 577 | 578 | 579 | 580 | 581 | 582 | 583 | 584 | 585 | 586 | 587 | 588 | 589 | 590 | 591 | 592 | 593 | 594 | 595 | 596 | 597 | 598 | 599 | 600 | 601 | 602 | 603 | 604 | 605 | 606 | 607 | 608 | 609 | 610 | 611 | 612 | 613 | 614 | 615 | 616 | 617 | 618 | 619 | 620 | 621 | 622 | 623 | 624 | 625 | 626 | 627 | 628 | 629 | 630 | 631 | 632 | 633 | 634 | 635 | 636 | 637 | 638 | 639 | 640 | 641 | 642 | 643 | 644 | 645 | 646 | 647 | 648 | 649 | 650 | 651 | 652 | 653 | 654 | 655 | 656 | 657 | 658 | 659 | 660 | 661 | 662 | 663 | 664 | 665 | 666 | 667 | 668 | 669 | 670 | 671 | 672 | 673 | 674 | 675 | 676 | 677 | 678 | 679 | 680 | 681 | 682 | 683 | 684 | 685 | 686 | 687 | 688 | 689 | 690 | 691 | 692 | 693 | 694 | 695 | 696 | 697 | 698 | 699 | 700 | 701 | 702 | 703 | 704 | 705 | 706 | 707 | 708 | 709 | 710 | 711 | 712 | 713 | 714 | 715 | 716 | 717 | 718 | 719 | 720 | 721 | 722 | 723 | 724 | 725 | 726 | 727 | 728 | 729 | 730 | 731 | 732 | 733 | 734 | 735 | 736 | 737 | 738 | 739 | 740 | 741 | 742 | 743 | 744 | 745 | 746 | 747 | 748 | 749 | 750 | 751 | 752 | 753 | 754 | 755 | 756 | 757 | 758 | 759 | 760 | 761 | 762 | 763 | 764 | 765 | 766 | 767 | 768 | 769 | 770 | 771 | 772 | 773 | 774 | 775 | 776 | 777 | 778 | 779 | 780 | 781 | 782 | 783 | 784 | 785 | 786 | 787 | 788 | 789 | 790 | 791 | 792 | 793 | 794 | 795 | 796 | 797 | 798 | Since Version 6.2.2 text objects can contain more than one line, 799 | which will not be processed correctly with this version. 800 | 801 | 802 | Since Version 8.2, EAGLE supports online libraries. The ids 803 | of those online libraries will not be understood (or retained) 804 | with this version. 805 | 806 | 807 | Since Version 8.3, EAGLE supports Fusion synchronisation. 808 | This feature will not be available in this version and saving 809 | the document will break the link to the Fusion PCB feature. 810 | 811 | 812 | Since Version 8.3, EAGLE supports URNs for individual library 813 | assets (packages, symbols, and devices). The URNs of those assets 814 | will not be understood (or retained) with this version. 815 | 816 | 817 | Since Version 8.3, EAGLE supports the association of 3D packages 818 | with devices in libraries, schematics, and board files. Those 3D 819 | packages will not be understood (or retained) with this version. 820 | 821 | 822 | 823 | -------------------------------------------------------------------------------- /images/arduino.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/arduino.jpg -------------------------------------------------------------------------------- /images/boards.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/boards.jpg -------------------------------------------------------------------------------- /images/gerbers.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/gerbers.png -------------------------------------------------------------------------------- /images/ingame_temp.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/ingame_temp.jpg -------------------------------------------------------------------------------- /images/prog1.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/prog1.jpg -------------------------------------------------------------------------------- /images/prog2.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/prog2.jpg -------------------------------------------------------------------------------- /images/prog3.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/prog3.jpg -------------------------------------------------------------------------------- /images/prog4.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/prog4.jpg -------------------------------------------------------------------------------- /images/prog5.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/prog5.jpg -------------------------------------------------------------------------------- /images/prog6.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/prog6.jpg -------------------------------------------------------------------------------- /images/prog7.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/prog7.jpg -------------------------------------------------------------------------------- /images/spi2par_connection.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/spi2par_connection.jpg -------------------------------------------------------------------------------- /images/spi2par_connection2.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/images/spi2par_connection2.jpg -------------------------------------------------------------------------------- /schematic_spi2par2019backpack.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/schematic_spi2par2019backpack.pdf -------------------------------------------------------------------------------- /schematic_spi2par2019faithful.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Ryzee119/spi2par2019/a0c0781838d309e02fc0096ea8454827b0c9742b/schematic_spi2par2019faithful.pdf -------------------------------------------------------------------------------- /spi2par2019.ino: -------------------------------------------------------------------------------- 1 | #include "xeniumspi.h" 2 | #include "xboxsmbus.h" 3 | #include "src/SMWire/SMWire.h" 4 | #include 5 | 6 | //Some screens like difference contrast values. So I couldn't really set a good default value 7 | //Play around and adjust to suit your screen. If you have flickering issues, it may help to solder 8 | //an extra electrolytic capacitor between the contrast pin (normally labelled 'V0') and GND. 9 | #define DEFAULT_CONTRAST 100 //0-255. Lower is higher contrast. 10 | #define DEFAULT_BACKLIGHT 255 //0-255. Higher is brighter. 11 | //#define USE_FAHRENHEIT 1 //Uncomment this line to make the in-game temp readouts display in Fahrenheit. 12 | 13 | //Use the following lines to set the LCD display size; currently only displays of 20/16 columns and 4 rows are supported. 14 | //16 column displays will have issues with the dashboard display as these are all expecting 20 column displays. 15 | #define LCD_ROW 4 16 | #define LCD_COL 20 17 | 18 | #if (LCD_COL == 16) 19 | #define tempDisplayF "CPU:%3u%c MB:%3u%c" 20 | #define tempDisplayC "CPU:%3u%c MB:%3u%c" 21 | #define tenEightyI "1080i " 22 | #define sevenTwentyP "720p " 23 | #define fourEightyI "480i " 24 | #define fourEightyP "480p " 25 | #define fanSpeed "FAN: %3u%% " 26 | #else 27 | #define tempDisplayF "CPU:%3u%cF M/B:%3u%cF " 28 | #define tempDisplayC "CPU:%3u%cC M/B:%3u%cC " 29 | #define tenEightyI " 1080i " 30 | #define sevenTwentyP " 720p " 31 | #define fourEightyI " 480i " 32 | #define fourEightyP " 480p " 33 | #define fanSpeed "FAN: %3u%% " 34 | 35 | #endif 36 | 37 | 38 | //HD44780 LCD Setup 39 | const uint8_t rs = 18, en = 8, d4 = 7, d5 = 6, d6 = 5, d7 = 4; //HD44780 compliant LCD display pin numbers 40 | const uint8_t ss_in = 17, miso = 14, mosi = 16, sck = 15, ss_out = A2; //SPI pin numbers, ss_in is the CS for the slave. As Xenium doesn't seem to use CS, ss_out is connected to ss_in on the PCB to manually trigger CS. 41 | const uint8_t i2c_sda = 2, i2c_scl = 3; //i2c pins for SMBus 42 | const uint8_t backlightPin = 10, contrastPin = 9; //Pin nubmers for backlight and contrast. Must be PWM enabled 43 | uint8_t cursorPosCol = 0, cursorPosRow = 0; //Track the position of the cursor 44 | uint8_t wrapping = 0, scrolling = 0; //Xenium spi command toggles for the lcd screen. 45 | LiquidCrystal hd44780(rs, en, d4, d5, d6, d7); //Constructor for the LCD. 46 | 47 | 48 | //SPI Data 49 | int16_t RxQueue[256]; //Input FIFO buffer for raw SPI data from Xenium 50 | uint8_t QueuePos; //Tracks the current position in the FIFO queue that is being processed 51 | uint8_t QueueRxPos; //Tracks the current position in the FIFO queue of the unprocessed input data (raw realtime SPI data) 52 | uint8_t SPIState; //SPI State machine flag to monitor the SPI bus state can = SPI_ACTIVE, SPI_IDLE, SPI_SYNC, SPI_WAIT 53 | uint32_t SPIIdleTimer; //Tracks how long the SPI bus has been idle for 54 | 55 | 56 | 57 | //I2C Bus 58 | uint32_t SMBusTimer; //Timer used to trigger SMBus reads 59 | uint8_t i2cCheckCount = 0; //Tracks what check we're up to of the i2c bus busy state 60 | uint8_t I2C_BUSY_CHECKS = 5; //To ensure we don't interfere with the actual Xbox's SMBus activity, we check the bus for activity for sending. 61 | 62 | 63 | //SPI Bus Receiver Interrupt Routine 64 | ISR (SPI_STC_vect) { 65 | RxQueue[QueueRxPos] = SPDR; 66 | QueueRxPos++; //This is an unsigned 8 bit variable, so will reset back to 0 after 255 automatically 67 | SPIState = SPI_ACTIVE; 68 | 69 | } 70 | 71 | void setup() { 72 | pinMode(ss_out, OUTPUT); 73 | digitalWrite(ss_out, HIGH); //Force SPI CS signal high while we setup 74 | Serial.begin(9600); 75 | delay(5); 76 | for (uint8_t i = 0; i < 8; i++) { 77 | delay(1); 78 | hd44780.createChar(i, &chars[i][0]); 79 | } 80 | 81 | hd44780.begin(LCD_COL, LCD_ROW); 82 | hd44780.noCursor(); 83 | 84 | memset(RxQueue, -1, 256); 85 | 86 | 87 | //I put my logic analyser on the Xenium SPI bus to confirm the bus properties. 88 | //The master clocks at ~16kHz. SPI Clock is high when inactive, data is valid on the trailing edge (CPOL/CPHA=1. Also known as SPI mode 3) 89 | SPCR |= _BV(SPE); //Turn on SPI. We don't set the MSTR bit so it's slave. 90 | SPCR |= _BV(SPIE); //Enable to SPI Interrupt Vector 91 | SPCR |= _BV(CPOL); //SPI Clock is high when inactive 92 | SPCR |= _BV(CPHA); //Data is Valid on Clock Trailing Edge 93 | 94 | Wire.begin(0xDD); //Random address that is different from existing bus devices. 95 | TWBR = ((F_CPU / 72000) - 16) / 2; //Change I2C frequency closer to OG Xbox SMBus speed. ~72kHz Not compulsory really, but a safe bet 96 | 97 | analogWrite(backlightPin, DEFAULT_BACKLIGHT); //0-255 Higher number is brighter. 98 | analogWrite(contrastPin, DEFAULT_CONTRAST); //0-255 Lower number is higher contrast 99 | 100 | //Speed up PWM frequency. Gets rid of flickering 101 | TCCR1B &= 0b11111000; 102 | TCCR1B |= (1 << CS00); //Change Timer Prescaler for PWM 103 | hd44780.setCursor(0, 0); 104 | 105 | //delay(250); 106 | uint32_t spiReadyTimer = millis(); 107 | bool spiReady = false; 108 | 109 | //Hold until spi bus is ready 110 | while (!spiReady) { 111 | if (digitalRead(sck) == 0) { 112 | spiReadyTimer = millis(); 113 | } 114 | //SPI Clock high for 100ms 115 | else if (millis() - spiReadyTimer > 100) { 116 | spiReady = true; 117 | } 118 | } 119 | digitalWrite(ss_out, LOW); //SPI Slave is ready to receive data 120 | 121 | } 122 | 123 | 124 | void loop() { 125 | //SPI to Parallel Conversion State Machine 126 | //One completion of processing command, set the buffer data value to -1 127 | //to indicate processing has been completed. 128 | 129 | 130 | if (QueueRxPos != QueuePos) { 131 | switch (RxQueue[(uint8_t)QueuePos]) { 132 | case -1: 133 | //No action required. 134 | break; 135 | 136 | case XeniumCursorHome: 137 | cursorPosRow = 0; 138 | cursorPosCol = 0; 139 | hd44780.setCursor(cursorPosCol, cursorPosRow); 140 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 141 | break; 142 | 143 | case XeniumHideDisplay: 144 | hd44780.noDisplay(); 145 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 146 | break; 147 | 148 | case XeniumShowDisplay: 149 | hd44780.display(); 150 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 151 | break; 152 | 153 | case XeniumHideCursor: 154 | hd44780.noCursor(); 155 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 156 | break; 157 | 158 | case XeniumShowUnderLineCursor: 159 | case XeniumShowBlockCursor: 160 | case XeniumShowInvertedCursor: 161 | hd44780.cursor(); 162 | hd44780.blink(); 163 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 164 | break; 165 | 166 | case XeniumBackspace: 167 | if (cursorPosCol > 0) { 168 | cursorPosCol--; 169 | hd44780.setCursor(cursorPosCol, cursorPosRow); 170 | hd44780.print(" "); 171 | hd44780.setCursor(cursorPosCol, cursorPosRow); 172 | } 173 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 174 | break; 175 | 176 | case XeniumLineFeed: //Move Cursor down one row, but keep column 177 | if (cursorPosRow < LCD_ROW - 1) { 178 | cursorPosRow++; 179 | hd44780.setCursor(cursorPosCol, cursorPosRow); 180 | } 181 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 182 | break; 183 | 184 | case XeniumDeleteInPlace: //Delete the character at the current cursor position 185 | hd44780.print(" "); 186 | hd44780.setCursor(cursorPosCol, cursorPosRow); 187 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 188 | break; 189 | 190 | case XeniumFormFeed: //Formfeed just clears the screen and resets the cursor. 191 | hd44780.clear(); 192 | cursorPosRow = 0; 193 | cursorPosCol = 0; 194 | hd44780.setCursor(cursorPosCol, cursorPosRow); 195 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 196 | break; 197 | 198 | case XeniumCarriageReturn: //Carriage returns moves the cursor to the start of the current line 199 | cursorPosCol = 0; 200 | hd44780.setCursor(cursorPosCol, cursorPosRow); 201 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 202 | break; 203 | 204 | case XeniumSetCursorPosition: //Sets the row and column of cursor. The following two bytes are the row and column. 205 | if (RxQueue[(uint8_t)(QueuePos + 2)] != -1) { 206 | uint8_t col = RxQueue[(uint8_t)(QueuePos + 1)]; //Column 207 | uint8_t row = RxQueue[(uint8_t)(QueuePos + 2)]; //Row 208 | if (col < LCD_COL && row < LCD_ROW) { 209 | hd44780.setCursor(col, row); 210 | cursorPosCol = col, cursorPosRow = row; 211 | } 212 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 213 | completeCommand(&RxQueue[(uint8_t)(QueuePos + 1)]); 214 | completeCommand(&RxQueue[(uint8_t)(QueuePos + 2)]); 215 | } 216 | break; 217 | 218 | case XeniumSetBacklight: 219 | //The following byte after the backlight command is the brightness value 220 | //Value is 0-100 for the backlight brightness. 0=OFF, 100=ON 221 | //AVR PWM Output is 0-255. We multiply by 2.55 to match AVR PWM range. 222 | if (RxQueue[(uint8_t)(QueuePos + 1)] != -1) { //ensure the command is complete 223 | uint8_t brightness = RxQueue[(uint8_t)(QueuePos + 1)]; 224 | if (brightness >= 0 && brightness <= 100) { 225 | analogWrite(backlightPin, (uint8_t)(brightness * 2.55f)); //0-255 for AVR PWM 226 | } 227 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 228 | completeCommand(&RxQueue[(uint8_t)(QueuePos + 1)]); 229 | } 230 | break; 231 | 232 | case XeniumSetContrast: 233 | //The following byte after the contrast command is the contrast value 234 | //Value is 0-100 0=Very Light, 100=Very Dark 235 | //AVR PWM Output is 0-255. We multiply by 2.55 to match AVR PWM range. 236 | if (RxQueue[(uint8_t)(QueuePos + 1)] != -1) { //ensure the command is complete 237 | uint8_t contrastValue = 100 - RxQueue[(uint8_t)(QueuePos + 1)]; //needs to convert to 100-0 instead of 0-100. 238 | if (contrastValue >= 0 && contrastValue <= 100) { 239 | analogWrite(contrastPin, (uint8_t)(contrastValue * 2.55f)); 240 | } 241 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 242 | completeCommand(&RxQueue[(uint8_t)(QueuePos + 1)]); 243 | } 244 | break; 245 | 246 | case XeniumReboot: 247 | cursorPosRow = 0; 248 | cursorPosCol = 0; 249 | hd44780.begin(LCD_COL, LCD_ROW); 250 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 251 | break; 252 | 253 | case XeniumCursorMove: 254 | //The following 2 bytes after the initial command is the direction to move the cursor 255 | //offset+1 is always 27, offset+2 is 65,66,67,68 for Up,Down,Right,Left 256 | if (RxQueue[(uint8_t)(QueuePos + 1)] == 27 && 257 | RxQueue[(uint8_t)(QueuePos + 2)] != -1) { 258 | 259 | switch (RxQueue[(uint8_t)(QueuePos + 2)]) { 260 | case 65: //UP 261 | if (cursorPosRow > 0) cursorPosRow--; 262 | break; 263 | case 66: //DOWN 264 | if (cursorPosRow < (LCD_ROW - 1) ) cursorPosRow++; 265 | break; 266 | case 67: //RIGHT 267 | if (cursorPosCol < (LCD_COL - 1)) cursorPosCol++; 268 | break; 269 | case 68: //LEFT 270 | if (cursorPosCol > 0) cursorPosCol--; 271 | break; 272 | default: 273 | //Error: Invalid cursor direction 274 | break; 275 | } 276 | hd44780.setCursor(cursorPosCol, cursorPosRow); 277 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 278 | completeCommand(&RxQueue[(uint8_t)(QueuePos + 1)]); 279 | completeCommand(&RxQueue[(uint8_t)(QueuePos + 2)]); 280 | } 281 | break; 282 | 283 | //Scrolling and wrapping commands are handled here. 284 | //The flags are toggled, but are not implemented properly yet 285 | //My testing seems to indicates it's not really needed. 286 | case XeniumWrapOff: 287 | wrapping = 0; 288 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 289 | break; 290 | 291 | case XeniumWrapOn: 292 | wrapping = 1; 293 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 294 | break; 295 | 296 | case XeniumScrollOff: 297 | scrolling = 0; 298 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 299 | break; 300 | 301 | case XeniumScrollOn: 302 | scrolling = 1; 303 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 304 | break; 305 | 306 | case 32 ... 255: //Just an ASCII character 307 | if (cursorPosCol < LCD_COL) { 308 | hd44780.setCursor(cursorPosCol, cursorPosRow); 309 | hd44780.write((char)RxQueue[(uint8_t)QueuePos]); 310 | cursorPosCol++; 311 | } 312 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 313 | break; 314 | 315 | //Not implemented. Dont seem to be used anyway. 316 | case XeniumLargeNumber: 317 | case XeniumDrawBarGraph: 318 | case XeniumModuleConfig: 319 | case XeniumCustomCharacter: 320 | default: 321 | //hd44780.setCursor(0, 0); 322 | //Serial.print("Not implemented "); 323 | //Serial.print(RxQueue[(uint8_t)QueuePos], DEC); 324 | //Serial.print("\r\n"); 325 | //hd44780.setCursor(cursorPosCol, cursorPosRow); 326 | completeCommand(&RxQueue[(uint8_t)QueuePos]); 327 | break; 328 | } 329 | 330 | if (RxQueue[(uint8_t)QueuePos] == -1) { 331 | QueuePos = (uint8_t)(QueuePos + 1); 332 | } 333 | 334 | } 335 | 336 | /* State machine to monitor the SPI Bus idle state */ 337 | /* State machine to monitor the SPI Bus idle state */ 338 | //If SPI bus has been idle pulse the CS line to resync the bus. 339 | //Xenium SPI bus doesnt use a Chip select line to resync the bus so this is a bit hacky, but improved reliability 340 | if (SPIState == SPI_ACTIVE) { 341 | SPIState = SPI_IDLE; 342 | SPIIdleTimer = millis(); 343 | 344 | } else if (SPIState == SPI_IDLE && (millis() - SPIIdleTimer) > 100) { 345 | SPIState = SPI_SYNC; 346 | digitalWrite(ss_out, HIGH); 347 | SPIIdleTimer = millis(); 348 | 349 | } else if (SPIState == SPI_SYNC && (millis() - SPIIdleTimer) > 25) { 350 | digitalWrite(ss_out, LOW); 351 | SPIState = SPI_WAIT; 352 | } 353 | 354 | 355 | /* Read data from Xbox System Management Bus */ 356 | //Check that i2cBus is free, it has been atleast 2 seconds since last call, 357 | //and the SPI Bus has been idle for >10 seconds (i.e in a game or app that doesnt support LCD) 358 | if (i2cBusy() == 0 && 359 | (millis() - SMBusTimer) > 2000 && 360 | (millis() - SPIIdleTimer) > 10000){ 361 | 362 | char rxBuffer[20]; //Raw data received from SMBus 363 | char lineBuffer[LCD_COL]; //Fomatted data for printing to LCD 364 | 365 | 366 | //Read the current fan speed directly from the SMC and print to LCD 367 | if (readSMBus(SMC_ADDRESS, SMC_FANSPEED, &rxBuffer[0], 1) == 0) { 368 | if (rxBuffer[0] >= 0 && rxBuffer[0] <= 50) { //Sanity check. Number should be 0-50 369 | snprintf(lineBuffer, sizeof lineBuffer, "FAN: %3u%% ", rxBuffer[0] * 2); 370 | hd44780.setCursor(0, 2); //Write to 3rd row of hd44780. 0=Row 1, 2=Row 3 371 | hd44780.print(lineBuffer); 372 | } 373 | } 374 | 375 | 376 | //Read Focus Chip to determine video resolution (for Version 1.4 console only) 377 | if (readSMBus(FOCUS_ADDRESS, FOCUS_PID, &rxBuffer[0], 2) == 0) { 378 | uint16_t PID = ((uint16_t)rxBuffer[1]) << 8 | rxBuffer[0]; 379 | if (PID == 0xFE05) { 380 | readSMBus(FOCUS_ADDRESS, FOCUS_VIDCNTL, &rxBuffer[0], 2); 381 | uint16_t VID_CNTL0 = ((uint16_t)rxBuffer[1]) << 8 | rxBuffer[0]; 382 | 383 | if (VID_CNTL0 & FOCUS_VIDCNTL_VSYNC5_6 && VID_CNTL0 & FOCUS_VIDCNTL_INT_PROG) { 384 | //Must be HDTV, interlaced (1080i) 385 | hd44780.print(tenEightyI); 386 | 387 | } else if (VID_CNTL0 & FOCUS_VIDCNTL_VSYNC5_6 && !(VID_CNTL0 & FOCUS_VIDCNTL_INT_PROG)) { 388 | //Must be HDTV, Progressive 720p 389 | hd44780.print(sevenTwentyP); 390 | 391 | } else if (!(VID_CNTL0 & FOCUS_VIDCNTL_VSYNC5_6) && VID_CNTL0 & FOCUS_VIDCNTL_INT_PROG) { 392 | //Must be SDTV, interlaced 480i 393 | hd44780.print(fourEightyI); 394 | 395 | } else if (!(VID_CNTL0 & FOCUS_VIDCNTL_VSYNC5_6) && !(VID_CNTL0 & FOCUS_VIDCNTL_INT_PROG)) { 396 | //Must be SDTV, Progressive 480p 397 | hd44780.print(fourEightyP); 398 | 399 | } else { 400 | hd44780.print(VID_CNTL0, HEX); //Not sure what it is. Print the code. 401 | } 402 | } 403 | 404 | //Read Conexant Chip to determine video resolution (for Version 1.0 to 1.3 console only) 405 | } else if (readSMBus(CONEX_ADDRESS, CONEX_2E, &rxBuffer[0], 1) == 0) { 406 | if ((uint8_t)(rxBuffer[0] & 3) == 3) { 407 | //Must be 1080i 408 | hd44780.print(tenEightyI); 409 | 410 | } else if ((uint8_t)(rxBuffer[0] & 3) == 2) { 411 | //Must be 720p 412 | hd44780.print(sevenTwentyP); 413 | 414 | } else if ((uint8_t)(rxBuffer[0] & 3) == 1 && rxBuffer[0]&CONEX_2E_HDTV_EN) { 415 | //Must be 480p 416 | hd44780.print(fourEightyP); 417 | 418 | } else { 419 | hd44780.print(fourEightyI); 420 | } 421 | 422 | } 423 | 424 | //Read the CPU and M/B temps 425 | //Try ADM1032 426 | if ((readSMBus(ADM1032_ADDRESS, ADM1032_CPU, &rxBuffer[0], 1) == 0 && 427 | readSMBus(ADM1032_ADDRESS, ADM1032_MB, &rxBuffer[1], 1) == 0) || 428 | //If fails, its probably a 1.6. Read SMC instead. 429 | (readSMBus(SMC_ADDRESS, SMC_CPUTEMP, &rxBuffer[0], 1) == 0 && 430 | readSMBus(SMC_ADDRESS, SMC_BOARDTEMP, &rxBuffer[1], 1) == 0)) { 431 | if (rxBuffer[0] < 200 && rxBuffer[1] < 200 && rxBuffer[0] > 0 && rxBuffer[1] > 0) { 432 | #ifdef USE_FAHRENHEIT 433 | snprintf(lineBuffer, sizeof lineBuffer, tempDisplayF, (uint8_t)((float)rxBuffer[0] * 1.8 + 32.0), (char)223, 434 | (uint8_t)((float)rxBuffer[1] * 1.8 + 32.0), (char)223); 435 | #else 436 | snprintf(lineBuffer, sizeof lineBuffer, tempDisplayC, rxBuffer[0], (char)223, rxBuffer[1], (char)223); 437 | #endif 438 | hd44780.setCursor(0, 3); //Write temperatures to LCD row 3 439 | hd44780.print(lineBuffer); 440 | } 441 | SMBusTimer = millis(); 442 | } 443 | 444 | } else if (SPIState != SPI_WAIT) { 445 | SMBusTimer = millis(); 446 | 447 | } 448 | } 449 | 450 | /* 451 | Function: Check if the SMBus/I2C bus is busy 452 | ---------------------------- 453 | returns: 0 if busy is free, non zero if busy or still checking 454 | */ 455 | uint8_t i2cBusy() { 456 | if (digitalRead(i2c_sda) == 0 || digitalRead(i2c_scl) == 0) { //If either the data or clock line is low, the line must be busy 457 | i2cCheckCount = I2C_BUSY_CHECKS; 458 | } else { 459 | i2cCheckCount--; //Bus isn't busy, decrease check counter so we check multiple times to be sure. 460 | } 461 | return i2cCheckCount; 462 | } 463 | 464 | /* 465 | Function: Read the Xbox SMBus 466 | ---------------------------- 467 | address: The address of the device on the SMBus 468 | command: The command to send to the device. Normally the register to read from 469 | rx: A pointer to a receive data buffer 470 | len: How many bytes to read 471 | returns: 0 on success, -1 on error. 472 | */ 473 | int8_t readSMBus(uint8_t address, uint8_t command, char* rx, uint8_t len) { 474 | Wire.beginTransmission(address); 475 | Wire.write(command); 476 | if (Wire.endTransmission(false) == 0) { //Needs to be false. Send I2c repeated start, dont release bus yet 477 | Wire.requestFrom(address, len); 478 | for (uint8_t i = 0; i < len; i++) { 479 | rx[i] = Wire.read(); 480 | } 481 | return 0; 482 | } else { 483 | return -1; 484 | } 485 | 486 | } 487 | 488 | void completeCommand(int16_t* c) { 489 | *c = -1; 490 | } 491 | -------------------------------------------------------------------------------- /src/SMWire/SMWire.cpp: -------------------------------------------------------------------------------- 1 | /* 2 | TwoWire.cpp - TWI/I2C library for Wiring & Arduino 3 | Copyright (c) 2006 Nicholas Zambetti. All right reserved. 4 | 5 | This library is free software; you can redistribute it and/or 6 | modify it under the terms of the GNU Lesser General Public 7 | License as published by the Free Software Foundation; either 8 | version 2.1 of the License, or (at your option) any later version. 9 | 10 | This library is distributed in the hope that it will be useful, 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | Lesser General Public License for more details. 14 | 15 | You should have received a copy of the GNU Lesser General Public 16 | License along with this library; if not, write to the Free Software 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 | 19 | Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts 20 | Modified 2017 by Chuck Todd (ctodd@cableone.net) to correct Unconfigured Slave Mode reboot 21 | */ 22 | 23 | extern "C" { 24 | #include 25 | #include 26 | #include 27 | #include "utility/twi.h" 28 | } 29 | 30 | #include "SMWire.h" 31 | 32 | // Initialize Class Variables ////////////////////////////////////////////////// 33 | 34 | uint8_t TwoWire::rxBuffer[BUFFER_LENGTH]; 35 | uint8_t TwoWire::rxBufferIndex = 0; 36 | uint8_t TwoWire::rxBufferLength = 0; 37 | 38 | uint8_t TwoWire::txAddress = 0; 39 | uint8_t TwoWire::txBuffer[BUFFER_LENGTH]; 40 | uint8_t TwoWire::txBufferIndex = 0; 41 | uint8_t TwoWire::txBufferLength = 0; 42 | 43 | uint8_t TwoWire::transmitting = 0; 44 | void (*TwoWire::user_onRequest)(void); 45 | void (*TwoWire::user_onReceive)(int); 46 | 47 | // Constructors //////////////////////////////////////////////////////////////// 48 | 49 | TwoWire::TwoWire() 50 | { 51 | } 52 | 53 | // Public Methods ////////////////////////////////////////////////////////////// 54 | 55 | void TwoWire::begin(void) 56 | { 57 | rxBufferIndex = 0; 58 | rxBufferLength = 0; 59 | 60 | txBufferIndex = 0; 61 | txBufferLength = 0; 62 | 63 | twi_init(); 64 | twi_attachSlaveTxEvent(onRequestService); // default callback must exist 65 | twi_attachSlaveRxEvent(onReceiveService); // default callback must exist 66 | } 67 | 68 | void TwoWire::begin(uint8_t address) 69 | { 70 | begin(); 71 | twi_setAddress(address); 72 | } 73 | 74 | void TwoWire::begin(int address) 75 | { 76 | begin((uint8_t)address); 77 | } 78 | 79 | void TwoWire::end(void) 80 | { 81 | twi_disable(); 82 | } 83 | 84 | void TwoWire::setClock(uint32_t clock) 85 | { 86 | twi_setFrequency(clock); 87 | } 88 | 89 | uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint32_t iaddress, uint8_t isize, uint8_t sendStop) 90 | { 91 | if (isize > 0) { 92 | // send internal address; this mode allows sending a repeated start to access 93 | // some devices' internal registers. This function is executed by the hardware 94 | // TWI module on other processors (for example Due's TWI_IADR and TWI_MMR registers) 95 | 96 | beginTransmission(address); 97 | 98 | // the maximum size of internal address is 3 bytes 99 | if (isize > 3){ 100 | isize = 3; 101 | } 102 | 103 | // write internal register address - most significant byte first 104 | while (isize-- > 0) 105 | write((uint8_t)(iaddress >> (isize*8))); 106 | endTransmission(false); 107 | } 108 | 109 | // clamp to buffer length 110 | if(quantity > BUFFER_LENGTH){ 111 | quantity = BUFFER_LENGTH; 112 | } 113 | // perform blocking read into buffer 114 | uint8_t read = twi_readFrom(address, rxBuffer, quantity, sendStop); 115 | // set rx buffer iterator vars 116 | rxBufferIndex = 0; 117 | rxBufferLength = read; 118 | 119 | return read; 120 | } 121 | 122 | uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint8_t sendStop) { 123 | return requestFrom((uint8_t)address, (uint8_t)quantity, (uint32_t)0, (uint8_t)0, (uint8_t)sendStop); 124 | } 125 | 126 | uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity) 127 | { 128 | return requestFrom((uint8_t)address, (uint8_t)quantity, (uint8_t)true); 129 | } 130 | 131 | uint8_t TwoWire::requestFrom(int address, int quantity) 132 | { 133 | return requestFrom((uint8_t)address, (uint8_t)quantity, (uint8_t)true); 134 | } 135 | 136 | uint8_t TwoWire::requestFrom(int address, int quantity, int sendStop) 137 | { 138 | return requestFrom((uint8_t)address, (uint8_t)quantity, (uint8_t)sendStop); 139 | } 140 | 141 | void TwoWire::beginTransmission(uint8_t address) 142 | { 143 | // indicate that we are transmitting 144 | transmitting = 1; 145 | // set address of targeted slave 146 | txAddress = address; 147 | // reset tx buffer iterator vars 148 | txBufferIndex = 0; 149 | txBufferLength = 0; 150 | } 151 | 152 | void TwoWire::beginTransmission(int address) 153 | { 154 | beginTransmission((uint8_t)address); 155 | } 156 | 157 | // 158 | // Originally, 'endTransmission' was an f(void) function. 159 | // It has been modified to take one parameter indicating 160 | // whether or not a STOP should be performed on the bus. 161 | // Calling endTransmission(false) allows a sketch to 162 | // perform a repeated start. 163 | // 164 | // WARNING: Nothing in the library keeps track of whether 165 | // the bus tenure has been properly ended with a STOP. It 166 | // is very possible to leave the bus in a hung state if 167 | // no call to endTransmission(true) is made. Some I2C 168 | // devices will behave oddly if they do not see a STOP. 169 | // 170 | uint8_t TwoWire::endTransmission(uint8_t sendStop) 171 | { 172 | // transmit buffer (blocking) 173 | uint8_t ret = twi_writeTo(txAddress, txBuffer, txBufferLength, 1, sendStop); 174 | // reset tx buffer iterator vars 175 | txBufferIndex = 0; 176 | txBufferLength = 0; 177 | // indicate that we are done transmitting 178 | transmitting = 0; 179 | return ret; 180 | } 181 | 182 | // This provides backwards compatibility with the original 183 | // definition, and expected behaviour, of endTransmission 184 | // 185 | uint8_t TwoWire::endTransmission(void) 186 | { 187 | return endTransmission(true); 188 | } 189 | 190 | // must be called in: 191 | // slave tx event callback 192 | // or after beginTransmission(address) 193 | size_t TwoWire::write(uint8_t data) 194 | { 195 | if(transmitting){ 196 | // in master transmitter mode 197 | // don't bother if buffer is full 198 | if(txBufferLength >= BUFFER_LENGTH){ 199 | setWriteError(); 200 | return 0; 201 | } 202 | // put byte in tx buffer 203 | txBuffer[txBufferIndex] = data; 204 | ++txBufferIndex; 205 | // update amount in buffer 206 | txBufferLength = txBufferIndex; 207 | }else{ 208 | // in slave send mode 209 | // reply to master 210 | twi_transmit(&data, 1); 211 | } 212 | return 1; 213 | } 214 | 215 | // must be called in: 216 | // slave tx event callback 217 | // or after beginTransmission(address) 218 | size_t TwoWire::write(const uint8_t *data, size_t quantity) 219 | { 220 | if(transmitting){ 221 | // in master transmitter mode 222 | for(size_t i = 0; i < quantity; ++i){ 223 | write(data[i]); 224 | } 225 | }else{ 226 | // in slave send mode 227 | // reply to master 228 | twi_transmit(data, quantity); 229 | } 230 | return quantity; 231 | } 232 | 233 | // must be called in: 234 | // slave rx event callback 235 | // or after requestFrom(address, numBytes) 236 | int TwoWire::available(void) 237 | { 238 | return rxBufferLength - rxBufferIndex; 239 | } 240 | 241 | // must be called in: 242 | // slave rx event callback 243 | // or after requestFrom(address, numBytes) 244 | int TwoWire::read(void) 245 | { 246 | int value = -1; 247 | 248 | // get each successive byte on each call 249 | if(rxBufferIndex < rxBufferLength){ 250 | value = rxBuffer[rxBufferIndex]; 251 | ++rxBufferIndex; 252 | } 253 | 254 | return value; 255 | } 256 | 257 | // must be called in: 258 | // slave rx event callback 259 | // or after requestFrom(address, numBytes) 260 | int TwoWire::peek(void) 261 | { 262 | int value = -1; 263 | 264 | if(rxBufferIndex < rxBufferLength){ 265 | value = rxBuffer[rxBufferIndex]; 266 | } 267 | 268 | return value; 269 | } 270 | 271 | void TwoWire::flush(void) 272 | { 273 | // XXX: to be implemented. 274 | } 275 | 276 | // behind the scenes function that is called when data is received 277 | void TwoWire::onReceiveService(uint8_t* inBytes, int numBytes) 278 | { 279 | // don't bother if user hasn't registered a callback 280 | if(!user_onReceive){ 281 | return; 282 | } 283 | // don't bother if rx buffer is in use by a master requestFrom() op 284 | // i know this drops data, but it allows for slight stupidity 285 | // meaning, they may not have read all the master requestFrom() data yet 286 | if(rxBufferIndex < rxBufferLength){ 287 | return; 288 | } 289 | // copy twi rx buffer into local read buffer 290 | // this enables new reads to happen in parallel 291 | for(uint8_t i = 0; i < numBytes; ++i){ 292 | rxBuffer[i] = inBytes[i]; 293 | } 294 | // set rx iterator vars 295 | rxBufferIndex = 0; 296 | rxBufferLength = numBytes; 297 | // alert user program 298 | user_onReceive(numBytes); 299 | } 300 | 301 | // behind the scenes function that is called when data is requested 302 | void TwoWire::onRequestService(void) 303 | { 304 | // don't bother if user hasn't registered a callback 305 | if(!user_onRequest){ 306 | return; 307 | } 308 | // reset tx buffer iterator vars 309 | // !!! this will kill any pending pre-master sendTo() activity 310 | txBufferIndex = 0; 311 | txBufferLength = 0; 312 | // alert user program 313 | user_onRequest(); 314 | } 315 | 316 | // sets function called on slave write 317 | void TwoWire::onReceive( void (*function)(int) ) 318 | { 319 | user_onReceive = function; 320 | } 321 | 322 | // sets function called on slave read 323 | void TwoWire::onRequest( void (*function)(void) ) 324 | { 325 | user_onRequest = function; 326 | } 327 | 328 | // Preinstantiate Objects ////////////////////////////////////////////////////// 329 | 330 | TwoWire Wire = TwoWire(); 331 | 332 | -------------------------------------------------------------------------------- /src/SMWire/SMWire.h: -------------------------------------------------------------------------------- 1 | /* 2 | TwoWire.h - TWI/I2C library for Arduino & Wiring 3 | Copyright (c) 2006 Nicholas Zambetti. All right reserved. 4 | 5 | This library is free software; you can redistribute it and/or 6 | modify it under the terms of the GNU Lesser General Public 7 | License as published by the Free Software Foundation; either 8 | version 2.1 of the License, or (at your option) any later version. 9 | 10 | This library is distributed in the hope that it will be useful, 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | Lesser General Public License for more details. 14 | 15 | You should have received a copy of the GNU Lesser General Public 16 | License along with this library; if not, write to the Free Software 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 | 19 | Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts 20 | */ 21 | 22 | #ifndef TwoWire_h 23 | #define TwoWire_h 24 | 25 | #include 26 | #include "Stream.h" 27 | 28 | #define BUFFER_LENGTH 32 29 | 30 | // WIRE_HAS_END means Wire has end() 31 | #define WIRE_HAS_END 1 32 | 33 | class TwoWire : public Stream 34 | { 35 | private: 36 | static uint8_t rxBuffer[]; 37 | static uint8_t rxBufferIndex; 38 | static uint8_t rxBufferLength; 39 | 40 | static uint8_t txAddress; 41 | static uint8_t txBuffer[]; 42 | static uint8_t txBufferIndex; 43 | static uint8_t txBufferLength; 44 | 45 | static uint8_t transmitting; 46 | static void (*user_onRequest)(void); 47 | static void (*user_onReceive)(int); 48 | static void onRequestService(void); 49 | static void onReceiveService(uint8_t*, int); 50 | public: 51 | TwoWire(); 52 | void begin(); 53 | void begin(uint8_t); 54 | void begin(int); 55 | void end(); 56 | void setClock(uint32_t); 57 | void beginTransmission(uint8_t); 58 | void beginTransmission(int); 59 | uint8_t endTransmission(void); 60 | uint8_t endTransmission(uint8_t); 61 | uint8_t requestFrom(uint8_t, uint8_t); 62 | uint8_t requestFrom(uint8_t, uint8_t, uint8_t); 63 | uint8_t requestFrom(uint8_t, uint8_t, uint32_t, uint8_t, uint8_t); 64 | uint8_t requestFrom(int, int); 65 | uint8_t requestFrom(int, int, int); 66 | virtual size_t write(uint8_t); 67 | virtual size_t write(const uint8_t *, size_t); 68 | virtual int available(void); 69 | virtual int read(void); 70 | virtual int peek(void); 71 | virtual void flush(void); 72 | void onReceive( void (*)(int) ); 73 | void onRequest( void (*)(void) ); 74 | 75 | inline size_t write(unsigned long n) { return write((uint8_t)n); } 76 | inline size_t write(long n) { return write((uint8_t)n); } 77 | inline size_t write(unsigned int n) { return write((uint8_t)n); } 78 | inline size_t write(int n) { return write((uint8_t)n); } 79 | using Print::write; 80 | }; 81 | 82 | extern TwoWire Wire; 83 | 84 | #endif 85 | 86 | -------------------------------------------------------------------------------- /src/SMWire/utility/twi.c: -------------------------------------------------------------------------------- 1 | /* 2 | twi.c - TWI/I2C library for Wiring & Arduino 3 | Copyright (c) 2006 Nicholas Zambetti. All right reserved. 4 | 5 | This library is free software; you can redistribute it and/or 6 | modify it under the terms of the GNU Lesser General Public 7 | License as published by the Free Software Foundation; either 8 | version 2.1 of the License, or (at your option) any later version. 9 | 10 | This library is distributed in the hope that it will be useful, 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | Lesser General Public License for more details. 14 | 15 | You should have received a copy of the GNU Lesser General Public 16 | License along with this library; if not, write to the Free Software 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 | 19 | Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts 20 | */ 21 | 22 | #include 23 | #include 24 | #include 25 | #include 26 | #include 27 | #include 28 | #include "Arduino.h" // for digitalWrite 29 | 30 | #ifndef cbi 31 | #define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit)) 32 | #endif 33 | 34 | #ifndef sbi 35 | #define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit)) 36 | #endif 37 | 38 | 39 | extern uint8_t I2C_BUSY_CHECKS; //Ryzee119 40 | extern uint8_t i2cCheckCount; //Ryzee119 41 | 42 | unsigned char gI2CCheckBusyAfterStop = 0; /* global */ 43 | 44 | #include "pins_arduino.h" 45 | #include "twi.h" 46 | 47 | static volatile uint8_t twi_state; 48 | static volatile uint8_t twi_slarw; 49 | static volatile uint8_t twi_sendStop; // should the transaction end with a stop 50 | static volatile uint8_t twi_inRepStart; // in the middle of a repeated start 51 | 52 | static void (*twi_onSlaveTransmit)(void); 53 | static void (*twi_onSlaveReceive)(uint8_t*, int); 54 | 55 | static uint8_t twi_masterBuffer[TWI_BUFFER_LENGTH]; 56 | static volatile uint8_t twi_masterBufferIndex; 57 | static volatile uint8_t twi_masterBufferLength; 58 | 59 | static uint8_t twi_txBuffer[TWI_BUFFER_LENGTH]; 60 | static volatile uint8_t twi_txBufferIndex; 61 | static volatile uint8_t twi_txBufferLength; 62 | 63 | static uint8_t twi_rxBuffer[TWI_BUFFER_LENGTH]; 64 | static volatile uint8_t twi_rxBufferIndex; 65 | 66 | static volatile uint8_t twi_error; 67 | 68 | 69 | 70 | //Ryzee119 71 | static volatile uint32_t twi_toutc; 72 | uint8_t twi_tout(uint8_t ini) 73 | { 74 | if (ini) twi_toutc=0; else twi_toutc++; 75 | if (twi_toutc>=10000UL) { 76 | twi_toutc=0; 77 | twi_init(); 78 | return 1; 79 | } 80 | return 0; 81 | } 82 | 83 | /* 84 | * Function twi_init 85 | * Desc readys twi pins and sets twi bitrate 86 | * Input none 87 | * Output none 88 | */ 89 | void twi_init(void) 90 | { 91 | // initialize state 92 | twi_state = TWI_READY; 93 | twi_sendStop = true; // default value 94 | twi_inRepStart = false; 95 | 96 | // activate internal pullups for twi. 97 | //digitalWrite(SDA, 1); 98 | //digitalWrite(SCL, 1); 99 | 100 | // initialize twi prescaler and bit rate 101 | cbi(TWSR, TWPS0); 102 | cbi(TWSR, TWPS1); 103 | TWBR = ((F_CPU / TWI_FREQ) - 16) / 2; 104 | 105 | /* twi bit rate formula from atmega128 manual pg 204 106 | SCL Frequency = CPU Clock Frequency / (16 + (2 * TWBR)) 107 | note: TWBR should be 10 or higher for master mode 108 | It is 72 for a 16mhz Wiring board with 100kHz TWI */ 109 | 110 | // enable twi module, acks, and twi interrupt 111 | TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA); 112 | } 113 | 114 | /* 115 | * Function twi_disable 116 | * Desc disables twi pins 117 | * Input none 118 | * Output none 119 | */ 120 | void twi_disable(void) 121 | { 122 | // disable twi module, acks, and twi interrupt 123 | TWCR &= ~(_BV(TWEN) | _BV(TWIE) | _BV(TWEA)); 124 | 125 | // deactivate internal pullups for twi. 126 | digitalWrite(SDA, 0); 127 | digitalWrite(SCL, 0); 128 | } 129 | 130 | /* 131 | * Function twi_slaveInit 132 | * Desc sets slave address and enables interrupt 133 | * Input none 134 | * Output none 135 | */ 136 | void twi_setAddress(uint8_t address) 137 | { 138 | // set twi slave address (skip over TWGCE bit) 139 | TWAR = address << 1; 140 | } 141 | 142 | /* 143 | * Function twi_setClock 144 | * Desc sets twi bit rate 145 | * Input Clock Frequency 146 | * Output none 147 | */ 148 | void twi_setFrequency(uint32_t frequency) 149 | { 150 | TWBR = ((F_CPU / frequency) - 16) / 2; 151 | 152 | /* twi bit rate formula from atmega128 manual pg 204 153 | SCL Frequency = CPU Clock Frequency / (16 + (2 * TWBR)) 154 | note: TWBR should be 10 or higher for master mode 155 | It is 72 for a 16mhz Wiring board with 100kHz TWI */ 156 | } 157 | 158 | /* 159 | * Function twi_readFrom 160 | * Desc attempts to become twi bus master and read a 161 | * series of bytes from a device on the bus 162 | * Input address: 7bit i2c device address 163 | * data: pointer to byte array 164 | * length: number of bytes to read into array 165 | * sendStop: Boolean indicating whether to send a stop at the end 166 | * Output number of bytes read 167 | */ 168 | uint8_t twi_readFrom(uint8_t address, uint8_t* data, uint8_t length, uint8_t sendStop) 169 | { 170 | uint8_t i; 171 | 172 | // ensure data will fit into buffer 173 | if(TWI_BUFFER_LENGTH < length){ 174 | return 0; 175 | } 176 | 177 | // wait until twi is ready, become master receiver 178 | twi_tout(1);//Ini TimeOut 179 | while(TWI_READY != twi_state){ 180 | if (twi_tout(0)) break; 181 | continue; 182 | } 183 | twi_state = TWI_MRX; 184 | twi_sendStop = sendStop; 185 | // reset error state (0xFF.. no error occured) 186 | twi_error = 0xFF; 187 | 188 | // initialize buffer iteration vars 189 | twi_masterBufferIndex = 0; 190 | twi_masterBufferLength = length-1; // This is not intuitive, read on... 191 | // On receive, the previously configured ACK/NACK setting is transmitted in 192 | // response to the received byte before the interrupt is signalled. 193 | // Therefor we must actually set NACK when the _next_ to last byte is 194 | // received, causing that NACK to be sent in response to receiving the last 195 | // expected byte of data. 196 | 197 | // build sla+w, slave device address + w bit 198 | twi_slarw = TW_READ; 199 | twi_slarw |= address << 1; 200 | 201 | if (true == twi_inRepStart) { 202 | // if we're in the repeated start state, then we've already sent the start, 203 | // (@@@ we hope), and the TWI statemachine is just waiting for the address byte. 204 | // We need to remove ourselves from the repeated start state before we enable interrupts, 205 | // since the ISR is ASYNC, and we could get confused if we hit the ISR before cleaning 206 | // up. Also, don't enable the START interrupt. There may be one pending from the 207 | // repeated start that we sent ourselves, and that would really confuse things. 208 | twi_inRepStart = false; // remember, we're dealing with an ASYNC ISR 209 | do { 210 | TWDR = twi_slarw; 211 | } while(TWCR & _BV(TWWC)); 212 | TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START 213 | } 214 | else 215 | // send start condition 216 | TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA); 217 | 218 | // wait for read operation to complete 219 | twi_tout(1);//Ini TimeOut 220 | while(TWI_MRX == twi_state){ 221 | if (twi_tout(0)) break; 222 | continue; 223 | } 224 | 225 | if (twi_masterBufferIndex < length) 226 | length = twi_masterBufferIndex; 227 | 228 | // copy twi buffer to data 229 | for(i = 0; i < length; ++i){ 230 | data[i] = twi_masterBuffer[i]; 231 | } 232 | 233 | return length; 234 | } 235 | 236 | /* 237 | * Function twi_writeTo 238 | * Desc attempts to become twi bus master and write a 239 | * series of bytes to a device on the bus 240 | * Input address: 7bit i2c device address 241 | * data: pointer to byte array 242 | * length: number of bytes in array 243 | * wait: boolean indicating to wait for write or not 244 | * sendStop: boolean indicating whether or not to send a stop at the end 245 | * Output 0 .. success 246 | * 1 .. length to long for buffer 247 | * 2 .. address send, NACK received 248 | * 3 .. data send, NACK received 249 | * 4 .. other twi error (lost bus arbitration, bus error, ..) 250 | */ 251 | uint8_t twi_writeTo(uint8_t address, uint8_t* data, uint8_t length, uint8_t wait, uint8_t sendStop) 252 | { 253 | uint8_t i; 254 | 255 | // ensure data will fit into buffer 256 | if(TWI_BUFFER_LENGTH < length){ 257 | return 1; 258 | } 259 | 260 | // wait until twi is ready, become master transmitter 261 | twi_tout(1); 262 | while(TWI_READY != twi_state){ 263 | if (twi_tout(0)) return 5; 264 | continue; 265 | } 266 | twi_state = TWI_MTX; 267 | twi_sendStop = sendStop; 268 | // reset error state (0xFF.. no error occured) 269 | twi_error = 0xFF; 270 | 271 | // initialize buffer iteration vars 272 | twi_masterBufferIndex = 0; 273 | twi_masterBufferLength = length; 274 | 275 | // copy data to twi buffer 276 | for(i = 0; i < length; ++i){ 277 | twi_masterBuffer[i] = data[i]; 278 | } 279 | 280 | // build sla+w, slave device address + w bit 281 | twi_slarw = TW_WRITE; 282 | twi_slarw |= address << 1; 283 | 284 | // if we're in a repeated start, then we've already sent the START 285 | // in the ISR. Don't do it again. 286 | // 287 | if (true == twi_inRepStart) { 288 | // if we're in the repeated start state, then we've already sent the start, 289 | // (@@@ we hope), and the TWI statemachine is just waiting for the address byte. 290 | // We need to remove ourselves from the repeated start state before we enable interrupts, 291 | // since the ISR is ASYNC, and we could get confused if we hit the ISR before cleaning 292 | // up. Also, don't enable the START interrupt. There may be one pending from the 293 | // repeated start that we sent outselves, and that would really confuse things. 294 | twi_inRepStart = false; // remember, we're dealing with an ASYNC ISR 295 | do { 296 | TWDR = twi_slarw; 297 | } while(TWCR & _BV(TWWC)); 298 | TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START 299 | } 300 | else 301 | // send start condition 302 | TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE) | _BV(TWSTA); // enable INTs 303 | 304 | // wait for write operation to complete 305 | twi_tout(1); 306 | while(wait && (TWI_MTX == twi_state)){ 307 | if (twi_tout(0)) return 6; 308 | continue; 309 | } 310 | 311 | if (twi_error == 0xFF) 312 | return 0; // success 313 | else if (twi_error == TW_MT_SLA_NACK) 314 | return 2; // error: address send, nack received 315 | else if (twi_error == TW_MT_DATA_NACK) 316 | return 3; // error: data send, nack received 317 | else 318 | return 4; // other twi error 319 | } 320 | 321 | /* 322 | * Function twi_transmit 323 | * Desc fills slave tx buffer with data 324 | * must be called in slave tx event callback 325 | * Input data: pointer to byte array 326 | * length: number of bytes in array 327 | * Output 1 length too long for buffer 328 | * 2 not slave transmitter 329 | * 0 ok 330 | */ 331 | uint8_t twi_transmit(const uint8_t* data, uint8_t length) 332 | { 333 | uint8_t i; 334 | 335 | // ensure data will fit into buffer 336 | if(TWI_BUFFER_LENGTH < (twi_txBufferLength+length)){ 337 | return 1; 338 | } 339 | 340 | // ensure we are currently a slave transmitter 341 | if(TWI_STX != twi_state){ 342 | return 2; 343 | } 344 | 345 | // set length and copy data into tx buffer 346 | for(i = 0; i < length; ++i){ 347 | twi_txBuffer[twi_txBufferLength+i] = data[i]; 348 | } 349 | twi_txBufferLength += length; 350 | 351 | return 0; 352 | } 353 | 354 | /* 355 | * Function twi_attachSlaveRxEvent 356 | * Desc sets function called before a slave read operation 357 | * Input function: callback function to use 358 | * Output none 359 | */ 360 | void twi_attachSlaveRxEvent( void (*function)(uint8_t*, int) ) 361 | { 362 | twi_onSlaveReceive = function; 363 | } 364 | 365 | /* 366 | * Function twi_attachSlaveTxEvent 367 | * Desc sets function called before a slave write operation 368 | * Input function: callback function to use 369 | * Output none 370 | */ 371 | void twi_attachSlaveTxEvent( void (*function)(void) ) 372 | { 373 | twi_onSlaveTransmit = function; 374 | } 375 | 376 | /* 377 | * Function twi_reply 378 | * Desc sends byte or readys receive line 379 | * Input ack: byte indicating to ack or to nack 380 | * Output none 381 | */ 382 | void twi_reply(uint8_t ack) 383 | { 384 | // transmit master read ready signal, with or without ack 385 | if(ack){ 386 | TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA); 387 | }else{ 388 | TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT); 389 | } 390 | } 391 | 392 | /* 393 | * Function twi_stop 394 | * Desc relinquishes bus master status 395 | * Input none 396 | * Output none 397 | */ 398 | void twi_stop(void) 399 | { 400 | // send stop condition 401 | TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO); 402 | 403 | // wait for stop condition to be exectued on bus 404 | // TWINT is not set after a stop condition! 405 | twi_tout(1); 406 | while(TWCR & _BV(TWSTO)){ 407 | if (twi_tout(0)) return; 408 | continue; 409 | } 410 | 411 | // update twi state 412 | twi_state = TWI_READY; 413 | } 414 | 415 | /* 416 | * Function twi_releaseBus 417 | * Desc releases bus control 418 | * Input none 419 | * Output none 420 | */ 421 | void twi_releaseBus(void) 422 | { 423 | // release bus 424 | TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT); 425 | 426 | // update twi state 427 | twi_state = TWI_READY; 428 | } 429 | 430 | ISR(TWI_vect) 431 | { 432 | switch(TW_STATUS){ 433 | // All Master 434 | case TW_START: // sent start condition 435 | case TW_REP_START: // sent repeated start condition 436 | // copy device address and r/w bit to output register and ack 437 | TWDR = twi_slarw; 438 | twi_reply(1); 439 | break; 440 | 441 | // Master Transmitter 442 | case TW_MT_SLA_ACK: // slave receiver acked address 443 | case TW_MT_DATA_ACK: // slave receiver acked data 444 | // if there is data to send, send it, otherwise stop 445 | if(twi_masterBufferIndex < twi_masterBufferLength){ 446 | // copy data to output register and ack 447 | TWDR = twi_masterBuffer[twi_masterBufferIndex++]; 448 | twi_reply(1); 449 | }else{ 450 | if (twi_sendStop) 451 | twi_stop(); 452 | else { 453 | twi_inRepStart = true; // we're gonna send the START 454 | // don't enable the interrupt. We'll generate the start, but we 455 | // avoid handling the interrupt until we're in the next transaction, 456 | // at the point where we would normally issue the start. 457 | TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ; 458 | twi_state = TWI_READY; 459 | } 460 | } 461 | break; 462 | case TW_MT_SLA_NACK: // address sent, nack received 463 | twi_error = TW_MT_SLA_NACK; 464 | twi_stop(); 465 | break; 466 | case TW_MT_DATA_NACK: // data sent, nack received 467 | twi_error = TW_MT_DATA_NACK; 468 | twi_stop(); 469 | break; 470 | case TW_MT_ARB_LOST: // lost bus arbitration 471 | twi_error = TW_MT_ARB_LOST; 472 | twi_releaseBus(); 473 | break; 474 | 475 | // Master Receiver 476 | case TW_MR_DATA_ACK: // data received, ack sent 477 | // put byte into buffer 478 | twi_masterBuffer[twi_masterBufferIndex++] = TWDR; 479 | case TW_MR_SLA_ACK: // address sent, ack received 480 | // ack if more bytes are expected, otherwise nack 481 | if(twi_masterBufferIndex < twi_masterBufferLength){ 482 | twi_reply(1); 483 | }else{ 484 | twi_reply(0); 485 | } 486 | break; 487 | case TW_MR_DATA_NACK: // data received, nack sent 488 | // put final byte into buffer 489 | twi_masterBuffer[twi_masterBufferIndex++] = TWDR; 490 | if (twi_sendStop) 491 | twi_stop(); 492 | else { 493 | twi_inRepStart = true; // we're gonna send the START 494 | // don't enable the interrupt. We'll generate the start, but we 495 | // avoid handling the interrupt until we're in the next transaction, 496 | // at the point where we would normally issue the start. 497 | TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ; 498 | twi_state = TWI_READY; 499 | } 500 | break; 501 | case TW_MR_SLA_NACK: // address sent, nack received 502 | twi_stop(); 503 | break; 504 | // TW_MR_ARB_LOST handled by TW_MT_ARB_LOST case 505 | 506 | // Slave Receiver 507 | case TW_SR_SLA_ACK: // addressed, returned ack 508 | case TW_SR_GCALL_ACK: // addressed generally, returned ack 509 | case TW_SR_ARB_LOST_SLA_ACK: // lost arbitration, returned ack 510 | case TW_SR_ARB_LOST_GCALL_ACK: // lost arbitration, returned ack 511 | // enter slave receiver mode 512 | twi_state = TWI_SRX; 513 | // indicate that rx buffer can be overwritten and ack 514 | twi_rxBufferIndex = 0; 515 | twi_reply(1); 516 | break; 517 | case TW_SR_DATA_ACK: // data received, returned ack 518 | case TW_SR_GCALL_DATA_ACK: // data received generally, returned ack 519 | // if there is still room in the rx buffer 520 | if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){ 521 | // put byte in buffer and ack 522 | twi_rxBuffer[twi_rxBufferIndex++] = TWDR; 523 | twi_reply(1); 524 | }else{ 525 | // otherwise nack 526 | twi_reply(0); 527 | } 528 | break; 529 | case TW_SR_STOP: // stop or repeated start condition received 530 | // ack future responses and leave slave receiver state 531 | twi_releaseBus(); 532 | // put a null char after data if there's room 533 | if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){ 534 | twi_rxBuffer[twi_rxBufferIndex] = '\0'; 535 | } 536 | // callback to user defined callback 537 | twi_onSlaveReceive(twi_rxBuffer, twi_rxBufferIndex); 538 | // since we submit rx buffer to "wire" library, we can reset it 539 | twi_rxBufferIndex = 0; 540 | i2cCheckCount = I2C_BUSY_CHECKS; //Ryzee119 541 | extern unsigned char ; 542 | break; 543 | case TW_SR_DATA_NACK: // data received, returned nack 544 | case TW_SR_GCALL_DATA_NACK: // data received generally, returned nack 545 | // nack back at master 546 | twi_reply(0); 547 | break; 548 | 549 | // Slave Transmitter 550 | case TW_ST_SLA_ACK: // addressed, returned ack 551 | case TW_ST_ARB_LOST_SLA_ACK: // arbitration lost, returned ack 552 | // enter slave transmitter mode 553 | twi_state = TWI_STX; 554 | // ready the tx buffer index for iteration 555 | twi_txBufferIndex = 0; 556 | // set tx buffer length to be zero, to verify if user changes it 557 | twi_txBufferLength = 0; 558 | // request for txBuffer to be filled and length to be set 559 | // note: user must call twi_transmit(bytes, length) to do this 560 | twi_onSlaveTransmit(); 561 | // if they didn't change buffer & length, initialize it 562 | if(0 == twi_txBufferLength){ 563 | twi_txBufferLength = 1; 564 | twi_txBuffer[0] = 0x00; 565 | } 566 | // transmit first byte from buffer, fall 567 | case TW_ST_DATA_ACK: // byte sent, ack returned 568 | // copy data to output register 569 | TWDR = twi_txBuffer[twi_txBufferIndex++]; 570 | // if there is more to send, ack, otherwise nack 571 | if(twi_txBufferIndex < twi_txBufferLength){ 572 | twi_reply(1); 573 | }else{ 574 | twi_reply(0); 575 | } 576 | break; 577 | case TW_ST_DATA_NACK: // received nack, we are done 578 | case TW_ST_LAST_DATA: // received ack, but we are done already! 579 | // ack future responses 580 | twi_reply(1); 581 | // leave slave receiver state 582 | twi_state = TWI_READY; 583 | break; 584 | 585 | // All 586 | case TW_NO_INFO: // no state information 587 | break; 588 | case TW_BUS_ERROR: // bus error, illegal stop/start 589 | twi_error = TW_BUS_ERROR; 590 | twi_stop(); 591 | break; 592 | } 593 | } 594 | 595 | -------------------------------------------------------------------------------- /src/SMWire/utility/twi.h: -------------------------------------------------------------------------------- 1 | /* 2 | twi.h - TWI/I2C library for Wiring & Arduino 3 | Copyright (c) 2006 Nicholas Zambetti. All right reserved. 4 | 5 | This library is free software; you can redistribute it and/or 6 | modify it under the terms of the GNU Lesser General Public 7 | License as published by the Free Software Foundation; either 8 | version 2.1 of the License, or (at your option) any later version. 9 | 10 | This library is distributed in the hope that it will be useful, 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 | Lesser General Public License for more details. 14 | 15 | You should have received a copy of the GNU Lesser General Public 16 | License along with this library; if not, write to the Free Software 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 | */ 19 | 20 | #ifndef twi_h 21 | #define twi_h 22 | 23 | #include 24 | 25 | //#define ATMEGA8 26 | 27 | #ifndef TWI_FREQ 28 | #define TWI_FREQ 100000L 29 | #endif 30 | 31 | #ifndef TWI_BUFFER_LENGTH 32 | #define TWI_BUFFER_LENGTH 32 33 | #endif 34 | 35 | #define TWI_READY 0 36 | #define TWI_MRX 1 37 | #define TWI_MTX 2 38 | #define TWI_SRX 3 39 | #define TWI_STX 4 40 | 41 | void twi_init(void); 42 | void twi_disable(void); 43 | void twi_setAddress(uint8_t); 44 | void twi_setFrequency(uint32_t); 45 | uint8_t twi_readFrom(uint8_t, uint8_t*, uint8_t, uint8_t); 46 | uint8_t twi_writeTo(uint8_t, uint8_t*, uint8_t, uint8_t, uint8_t); 47 | uint8_t twi_transmit(const uint8_t*, uint8_t); 48 | void twi_attachSlaveRxEvent( void (*)(uint8_t*, int) ); 49 | void twi_attachSlaveTxEvent( void (*)(void) ); 50 | void twi_reply(uint8_t); 51 | void twi_stop(void); 52 | void twi_releaseBus(void); 53 | 54 | #endif 55 | 56 | -------------------------------------------------------------------------------- /xboxsmbus.h: -------------------------------------------------------------------------------- 1 | /* 2 | * XBMC LCD Settings 3 | * You can what the LCD prints in XBMC dashboard by editing /system/UserData/LCD.xml file 4 | * Check https://redmine.exotica.org.uk/projects/xbmc4xbox/repository/xbmc4xbox/entry/branches/3.5/xbmc/GUIInfoManager.cpp to see what options are available 5 | * 6 | */ 7 | 8 | 9 | /* 10 | * XBOX System Management Controller 11 | * See https://web.archive.org/web/20100708015155/http://www.xbox-linux.org/wiki/PIC 12 | * Note 1: The PIC version can be read from register 0x01 as a 3-character ASCII string. Each time you read that register, the next of the 3 characters is returned. 13 | * "DBG" = DEBUGKIT Green 14 | * "B11" = "DEBUGKIT Green" 15 | * "P01" = "v1.0" 16 | * "P05" = "v1.1" 17 | * "P11" or "1P1" or "11P" = v1.2/v1.3 or v1.4. Need to read Video encoder. If FOCUS_ADDRESS returns valid = V1.4, else v1.2/1,3 18 | * "P2L" or "1P1" or "11P" = v1.6 19 | * 20 | * Note 2: 0x00 SCART 21 | 0x01 HDTV 22 | 0x02 VGA 23 | 0x03 RFU 24 | 0x04 S-Video 25 | 0x05 undefined 26 | 0x06 standard 27 | 0x07 missing/disconnected 28 | */ 29 | #define SMC_ADDRESS 0x10 30 | #define SMC_VER 0x01 //PIC version string. Note 1. 31 | #define SMC_TRAY 0x03 //tray state (Tray open=16, Tray closed no disk=64, Tray closed with disk=96, 49=Opening, 97=Eject pressed?, 81=Closing) 32 | #define SMC_AVSTATE 0x04 //A/V Pack state Note 2. 33 | #define SMC_CPUTEMP 0x09 //CPU temperature (°C) //Read from ADM1032 for better update rate 34 | #define SMC_BOARDTEMP 0x0A //board temperature (°C) //Read from ADM1032 for better update rate 35 | #define SMC_FANSPEED 0x10 //current fan speed (0~50) multiply by 2 to get 0-100% 36 | 37 | 38 | /* XBOX ADM1032 System Temperature Monitor (Ref http://xboxdevwiki.net/SMBus) 39 | * https://www.onsemi.com/pub/Collateral/ADM1032-D.PDF 40 | */ 41 | #define ADM1032_ADDRESS 0x4C 42 | #define ADM1032_MB 0x00 //°C 43 | #define ADM1032_CPU 0x01 //°C 44 | 45 | 46 | /* XBOX Conexant CX25871 Video Encoder. This chip was used in Xbox versions 1.0 through 1.3 47 | * https://pdf1.alldatasheet.com/datasheet-pdf/view/153349/CONEXANT/CX25871.html See Section 2.4 Reading Registers 48 | * Anything interesting to read from Conexant? 49 | */ 50 | #define CONEX_ADDRESS 0x45 51 | #define CONEX_PID 0x00 //Returns 1 byte product ID. Bit 7-5=ID, Bit 4-0 = Version of chip read with readSMBus(CONEX_ADDRESS, CONEX_PID, &rxBuffer, 1) 52 | #define CONEX_A2 0xA2 53 | #define CONEX_A2_NI_OUT (1<<0) //Bit zero of address 0xA2. 0=interlaced, 1=progressive 54 | #define CONEX_2E 0x2E 55 | #define CONEX_2E_HDTV_EN (1<<7) //Bit 7 of address 0x2E. 1 = HDTV output mode enabled. 56 | 57 | 58 | /* XBOX Focus FS453 Video Encoder, This chip was used in Xbox Version 1.4 59 | * https://www.manualslib.com/manual/52885/Focus-Fs453.html 60 | * https://assemblergames.com/attachments/focus-datasheet-pdf-zip.17803/ 61 | * Anything interesting to read from Focus chip? See second attachment "2.1 Register Reference Table 62 | * for address offsets 63 | */ 64 | #define FOCUS_ADDRESS 0x6A 65 | #define FOCUS_PID 0x32 //Returns a 2 byte product ID. Low byte is first. Read with readSMBus(FOCUS_ADDRESS, FOCUS_PID, &rxBuffer, 2); 66 | /* This is the outputs from VID_CNTL0 register for each mode using component cable 67 | 480P 48 3e = 0100100000111110 68 | 480I 48 c5 = 0100100011000101 69 | 720P 58 2e = 0101100000101110 70 | 1080I 50 ae = 0101000010101110 71 | */ 72 | #define FOCUS_VIDCNTL 0x92 //Video Control 0 register 73 | #define FOCUS_VIDCNTL_VSYNC5_6 (1<<12) //Selects HDTV composite vertical sync width parameter. 1=HDTV 74 | #define FOCUS_VIDCNTL_INT_PROG (1<<7) //Interlaced/Progressive. When set =1, input image is interlaced 75 | 76 | /* 77 | * XBOX XCALIBUR For Xbox 1.6. I dont know anything about it? 78 | */ 79 | #define XCALIBUR_ADDRESS 0x70 80 | 81 | 82 | /* XBOX EEPROM 83 | * Could read anything stored in EEPROM, but doesnt seem like anything useful for a LCD screen 84 | * See https://web.archive.org/web/20081216023342/http://www.xbox-linux.org/wiki/Xbox_Serial_EEPROM for addresses 85 | * for different info 86 | */ 87 | #define EEPROM_ADDRESS 0x54 88 | #define EEPROM_SERIAL 0x34 //Read 12 bytes starting at 0x34. 89 | 90 | 91 | 92 | -------------------------------------------------------------------------------- /xeniumspi.h: -------------------------------------------------------------------------------- 1 | //Based on gathering a few commands using my logic analyser on the Xenium SPI bus, the commands seem to match a screen like this: 2 | //https://www.crystalfontz.com/products/document/3391/CFA634_Series_Data_Sheet_Release_2015-03-30.pdf 3 | 4 | //Xenium SPI Commands 5 | #define XeniumCursorHome 1 6 | #define XeniumHideDisplay 2 7 | #define XeniumShowDisplay 3 8 | #define XeniumHideCursor 4 9 | #define XeniumShowUnderLineCursor 5 10 | #define XeniumShowBlockCursor 6 11 | #define XeniumShowInvertedCursor 7 12 | #define XeniumBackspace 8 13 | #define XeniumModuleConfig 9 14 | #define XeniumLineFeed 10 15 | #define XeniumDeleteInPlace 11 16 | #define XeniumFormFeed 12 //Clears and resets cursor to home 17 | #define XeniumCarriageReturn 13 18 | #define XeniumSetBacklight 14 19 | #define XeniumSetContrast 15 20 | #define XeniumSetCursorPosition 17 ////The following 2 bytes after the set cursor command is column then row0x 21 | #define XeniumDrawBarGraph 18 //Followed up graph index, style, startcol, endcol, length, row 22 | #define XeniumScrollOn 19 23 | #define XeniumScrollOff 20 24 | #define XeniumWrapOn 23 25 | #define XeniumWrapOff 24 26 | #define XeniumCustomCharacter 25 27 | #define XeniumReboot 26 28 | #define XeniumCursorMove 27 //Followed by 91, then Up 65(0x41), Down 66 (0x42), Right 67 (0x43), Left 68 (0x44) for up,down,right,left 29 | #define XeniumLargeNumber 28 30 | 31 | //SPI State Machine 32 | #define SPI_ACTIVE 0 33 | #define SPI_IDLE 1 34 | #define SPI_SYNC 2 35 | #define SPI_WAIT 3 36 | 37 | 38 | byte chars[8][8] = { 39 | {0x1f, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // Top 10 pixels 0x08 40 | {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x1f}, // Bottom 10 pixels 0x09 41 | {0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x1f}, // Normal L 0x0a 42 | {0x1f, 0x1f, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18}, // Top left corner L _ 0x0b 43 | {0x1f, 0x1f, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x1f}, // Forward C 0x0c 44 | {0x1f, 0x1f, 0x03, 0x03, 0x03, 0x03, 0x1f, 0x1f}, // Backward C 0x0d 45 | {0x1f, 0x1f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03}, // 7 0x0e 46 | {0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x1f, 0x1f}, // Backward L 0x0f 47 | }; 48 | --------------------------------------------------------------------------------