├── .gitignore ├── LICENSE ├── README.md └── sketch └── sketch.ino /.gitignore: -------------------------------------------------------------------------------- 1 | # Object files 2 | *.o 3 | *.ko 4 | *.obj 5 | *.elf 6 | 7 | # Precompiled Headers 8 | *.gch 9 | *.pch 10 | 11 | # Libraries 12 | *.lib 13 | *.a 14 | *.la 15 | *.lo 16 | 17 | # Shared objects (inc. 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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 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 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 | {project} Copyright (C) {year} {fullname} 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 | # arduino_NAND_reader 2 | An arduino project that will read NAND chips 3 | http://hwreblog.com/projects/arduino_nand_reader.html 4 | -------------------------------------------------------------------------------- /sketch/sketch.ino: -------------------------------------------------------------------------------- 1 | // Copyright 2017 James Tate 2 | // 3 | // Flash Chip Reader 4 | // This program is free software: you can redistribute it and/or modify 5 | // it under the terms of the GNU General Public License as published by 6 | // the Free Software Foundation, either version 3 of the License, or 7 | // (at your option) any later version. 8 | // 9 | // This program is distributed in the hope that it will be useful, 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | // GNU General Public License for more details. 13 | // 14 | // You should have received a copy of the GNU General Public License 15 | // along with this program. If not, see . 16 | 17 | 18 | #include 19 | 20 | // !!!Enable VERBOSE in File->Preferences for compiler output!!! 21 | 22 | // set if the chip is capable of reading 8 or 16 channel here 23 | // if 16 channel uncomment this 24 | // #define __x16__ 25 | 26 | // if write enable function is added comment this this 27 | #define __READONLY__ 28 | #ifdef __READONLY__ 29 | #warning "Write Protect is Enabled" 30 | #endif 31 | 32 | #ifndef __x16__ 33 | #define __x8__ 34 | #warning "Configure for x8" 35 | #endif 36 | 37 | // pin setup for NAND chips 38 | // based on http://circuits.datasheetdir.com/400/MT29F2G08AABWP-pinout.jpg 39 | #if defined(__AVR_ATmega2560__) 40 | #warning "Compiling for MEGA2560" 41 | #define LED 13 // cause every project must have atleast 1 LED 42 | #define RB 7 43 | #define RE 8 44 | #define CE 9 45 | #define CLE 16 46 | #define ALE 17 47 | #define WE 18 48 | #define WP 19 49 | #define IO_0 29 50 | #define IO_1 30 51 | #define IO_2 31 52 | #define IO_3 32 53 | #define IO_4 41 54 | #define IO_5 42 55 | #define IO_6 43 56 | #define IO_7 44 57 | #else 58 | #error "board not supported" 59 | #endif 60 | 61 | #define BIT0 1 62 | #define BIT1 2 63 | #define BIT2 4 64 | #define BIT3 8 65 | #define BIT4 16 66 | #define BIT5 32 67 | #define BIT6 64 68 | #define BIT7 128 69 | 70 | enum{ 71 | OFF = 0, 72 | ON = 1, 73 | }; 74 | 75 | // reads the info of NAND chip 76 | void readIDNAND(); 77 | // read data 78 | void readDATANAND(); 79 | // reads data bus 80 | int readDataBus(int base); 81 | // sets data bus for output 82 | void setDataBusOut(); 83 | // sets data bus for input 84 | void setDataBusIn(); 85 | // write address to databus 86 | void putDataBus(int i); 87 | // get chip ready for command 88 | void prepChip(); 89 | // reset chip 90 | void reset(); 91 | // set command 92 | void setCommand(); 93 | // latch command 94 | void latchCommand(); 95 | // set address 96 | void setAddress(); 97 | // latch address 98 | void latchAddress(); 99 | // release chip 100 | void closeChip(); 101 | // toggle write enable 102 | void toggleWE(); 103 | 104 | 105 | // set this up 106 | void setup(){ 107 | //setup comm to computer 108 | Serial.begin(115200); 109 | 110 | Serial.println("Welcome"); 111 | pinMode(LED, OUTPUT); 112 | pinMode(ALE, OUTPUT); // Adress latch enable 113 | pinMode(CE, OUTPUT); // Chip enable 114 | pinMode(CLE,OUTPUT); // Command latch enable 115 | pinMode(RE, OUTPUT); // Read enable 116 | pinMode(WE, OUTPUT); // Write enable 117 | pinMode(WP, OUTPUT); // Write protect 118 | pinMode(RB, INPUT); // Read busy 119 | // set all IO pins to input for start 120 | setDataBusIn(); 121 | #if defined(__x16__) 122 | pinMode(IO_8, INPUT); 123 | pinMode(IO_9, INPUT); 124 | pinMode(IO_10, INPUT); 125 | pinMode(IO_11, INPUT); 126 | pinMode(IO_12, INPUT); 127 | pinMode(IO_13, INPUT); 128 | pinMode(IO_14, INPUT); 129 | pinMode(IO_15, INPUT); 130 | #endif 131 | #if defined(__READONLY__) 132 | digitalWrite(WP,OFF); 133 | #endif 134 | // disable chip to start 135 | digitalWrite(CE,ON); // inverted 136 | digitalWrite(WE,ON); // inverted 137 | digitalWrite(RE,ON); // inverted 138 | digitalWrite(CLE,OFF); 139 | digitalWrite(ALE,OFF); 140 | //digitalWrite(LED,ON); 141 | 142 | Serial.println("Pin setup complete"); 143 | reset(); 144 | } 145 | 146 | // do this forever and ever and ever and ever and ever and ever and ever and ever ..... 147 | void loop(){ 148 | int choice = 0; 149 | Serial.println("Choose Option"); 150 | Serial.println("1: ReadID"); 151 | Serial.println("2: Read Contents"); 152 | while(Serial.available() == 0){ 153 | delayMicroseconds(500); 154 | } 155 | choice = Serial.read(); 156 | if(choice == '1'){ 157 | readIDNAND(); 158 | } 159 | else if(choice == '2'){ 160 | readDATANAND(); 161 | } 162 | } 163 | 164 | void readIDNAND(){ 165 | 166 | Serial.println("===================================="); 167 | Serial.println("\n\rReading ID\n\r"); 168 | 169 | setDataBusOut(); 170 | 171 | prepChip(); 172 | 173 | //0x90 174 | putDataBus(0x90); 175 | // latch the command value 176 | latchCommand(); 177 | // setup the address value 178 | setAddress(); 179 | //0x00 for main info 180 | putDataBus(0x00); 181 | // latch the address value 182 | latchAddress(); 183 | // switch data bus for intput 184 | setDataBusIn(); 185 | 186 | Serial.print("ID = 0x"); 187 | int id = 0x00; 188 | // read the data bus 189 | for(int i = 0; i <= 4; i++){ 190 | if(i == 0){ 191 | id = readDataBus(HEX); 192 | } 193 | else{ 194 | readDataBus(HEX); 195 | } 196 | } 197 | Serial.println("\n\r"); 198 | if(id == 0x2c) Serial.print("Found myself attached to Micron"); 199 | else if (id == 0x98) Serial.print("Found myself attached to Toshiba"); 200 | else if (id == 0xec) Serial.print("Found myself attached to Samsung"); 201 | else if (id == 0x04) Serial.print("Found myself attached to Fujitsu"); 202 | else if (id == 0x8f) Serial.print("Found myself attached to National Semiconductors"); 203 | else if (id == 0x07) Serial.print("Found myself attached to Renesas"); 204 | else if (id == 0x20) Serial.print("Found myself attached to ST Micro"); 205 | else if (id == 0xad) Serial.print("Found myself attached to Hynix"); 206 | else if (id == 0x01) Serial.print("Found myself attached to AMD"); 207 | else if (id == 0xc2) Serial.print("Found myself attached to Macronix"); 208 | else 209 | Serial.println("could not find chip ID"); 210 | Serial.println("\n\rGo to http://www.linux-mtd.infradead.org/nand-data/nanddata.html for more information and find ID for info"); 211 | 212 | closeChip(); 213 | 214 | Serial.println("\n\rRead ID complete\n\r"); 215 | Serial.println("===================================="); 216 | } 217 | 218 | void readDATANAND(){ 219 | 220 | bool ledState = ON; 221 | // Change this section to fit your chip characteristics 222 | // ---------------------------------------------------- 223 | // current settings are for MT29f8G08ABABA page 16 224 | int pagesize = 4320; 225 | 226 | uint8_t low_block = 0x00; // DQ7:0 Cycle 4 227 | uint8_t high_block= 0x00; // DQ1 and DQ 0 Cycle 5 228 | bool plane = 0; // DQ7 Cycle 3 229 | uint8_t page = 0x00; // DQ0:6 Cycle 3 230 | 231 | while(high_block < 0x3){ 232 | setDataBusOut(); 233 | prepChip(); 234 | putDataBus(0x00); 235 | latchCommand(); 236 | 237 | // Address 238 | setAddress(); 239 | putDataBus(0x00); // always 0 column 240 | toggleWE(); 241 | putDataBus(0x00); // always 0 column 242 | toggleWE(); 243 | putDataBus(page); // page 244 | toggleWE(); 245 | putDataBus(low_block); // block 246 | toggleWE(); 247 | putDataBus(high_block); // block 248 | latchAddress(); 249 | // ------------ 250 | 251 | page++; 252 | if(page == 0x80){ 253 | page = 0; 254 | // need to change this 255 | plane = !plane; 256 | low_block++; 257 | if(low_block == 0xFF) high_block++; 258 | ledState = !ledState; 259 | digitalWrite(LED,ledState); 260 | } 261 | setCommand(); 262 | putDataBus(0x30); 263 | latchCommand(); 264 | setDataBusIn(); 265 | 266 | for(int i = 0; i < pagesize; i++) readDataBus(1); 267 | } 268 | // ---------------------------------------------------- 269 | 270 | closeChip(); 271 | Serial.println("\n\rRead Data complete\n\r"); 272 | Serial.println("===================================="); 273 | 274 | } 275 | 276 | void reset(){ 277 | Serial.println("Resetting"); 278 | digitalWrite(CLE,ON); 279 | digitalWrite(WE,OFF); 280 | digitalWrite(CE,OFF); 281 | putDataBus(0xFF); 282 | digitalWrite(WE,ON); 283 | digitalWrite(CE,ON); 284 | digitalWrite(CLE,OFF); 285 | delayMicroseconds(500); 286 | Serial.println("Chip Reset"); 287 | } 288 | 289 | void setCommand(){ 290 | digitalWrite(CLE,ON); 291 | digitalWrite(WE,OFF); 292 | } 293 | 294 | void latchCommand(){ 295 | digitalWrite(WE,ON); 296 | digitalWrite(CLE,OFF); 297 | } 298 | 299 | void setAddress(){ 300 | digitalWrite(WE,OFF); 301 | digitalWrite(ALE,ON); 302 | } 303 | 304 | void latchAddress(){ 305 | digitalWrite(WE,ON); 306 | digitalWrite(ALE,OFF); 307 | } 308 | 309 | void prepChip(){ 310 | digitalWrite(ALE,OFF); 311 | digitalWrite(RE,ON); 312 | digitalWrite(CLE,ON); 313 | digitalWrite(WE,OFF); 314 | digitalWrite(CE,OFF); 315 | } 316 | 317 | void closeChip(){ 318 | digitalWrite(CE,ON); 319 | digitalWrite(RE,ON); 320 | } 321 | 322 | void toggleWE(){ 323 | digitalWrite(WE,ON); 324 | digitalWrite(WE,OFF); 325 | } 326 | 327 | int readDataBus(int base){ 328 | // pull RE low so chip dumps contents 329 | digitalWrite(RE,OFF); 330 | int bit0 = digitalRead(IO_0); 331 | int bit1 = digitalRead(IO_1); 332 | int bit2 = digitalRead(IO_2); 333 | int bit3 = digitalRead(IO_3); 334 | int bit4 = digitalRead(IO_4); 335 | int bit5 = digitalRead(IO_5); 336 | int bit6 = digitalRead(IO_6); 337 | int bit7 = digitalRead(IO_7); 338 | // build the value 339 | int value = bit7 << 7 | bit6 << 6 | bit5 << 5 | bit4 << 4 | bit3 << 3 | bit2 << 2 | bit1 << 1 | bit0; 340 | // pull RE high to enable latch of next contents 341 | digitalWrite(RE,ON); 342 | if(base == 1) 343 | Serial.write(value); 344 | else 345 | Serial.print(value, base); 346 | return value; 347 | } 348 | 349 | void setDataBusOut(){ 350 | pinMode(IO_0, OUTPUT); 351 | pinMode(IO_1, OUTPUT); 352 | pinMode(IO_2, OUTPUT); 353 | pinMode(IO_3, OUTPUT); 354 | pinMode(IO_4, OUTPUT); 355 | pinMode(IO_5, OUTPUT); 356 | pinMode(IO_6, OUTPUT); 357 | pinMode(IO_7, OUTPUT); 358 | } 359 | 360 | void setDataBusIn(){ 361 | pinMode(IO_0, INPUT); 362 | pinMode(IO_1, INPUT); 363 | pinMode(IO_2, INPUT); 364 | pinMode(IO_3, INPUT); 365 | pinMode(IO_4, INPUT); 366 | pinMode(IO_5, INPUT); 367 | pinMode(IO_6, INPUT); 368 | pinMode(IO_7, INPUT); 369 | } 370 | 371 | void putDataBus(int i){ 372 | digitalWrite(IO_0,i & BIT0); 373 | digitalWrite(IO_1,i & BIT1); 374 | digitalWrite(IO_2,i & BIT2); 375 | digitalWrite(IO_3,i & BIT3); 376 | digitalWrite(IO_4,i & BIT4); 377 | digitalWrite(IO_5,i & BIT5); 378 | digitalWrite(IO_6,i & BIT6); 379 | digitalWrite(IO_7,i & BIT7); 380 | } 381 | 382 | 383 | 384 | 385 | 386 | 387 | 388 | --------------------------------------------------------------------------------