├── .gitignore ├── LICENSE ├── Project ├── EventRecorderStub.scvd ├── Fire_FreeRTOS.Administrator ├── Fire_FreeRTOS.uvguix.USER ├── Fire_FreeRTOS.uvoptx ├── Fire_FreeRTOS.uvprojx ├── Listings │ └── startup_armcm3.lst ├── Objects │ └── .gitkeep └── RTE │ ├── Device │ └── ARMCM3 │ │ ├── startup_ARMCM3.s │ │ ├── startup_ARMCM3.s@1.0.1 │ │ ├── system_ARMCM3.c │ │ └── system_ARMCM3.c@1.0.1 │ └── _Target_1 │ └── RTE_Components.h ├── README.md ├── docs ├── 1_list.c_带头双向循环链表.md ├── 4_空闲任务与阻塞延时的实现.md ├── 5_支持多优先级.md ├── 6_任务延时列表的实现.md ├── 7_支持时间片.md ├── task_创建任务与任务切换的实现.md └── 临界保护.md ├── freertos ├── include │ ├── FreeRTOS.h │ ├── FreeRTOSConfig.h │ ├── list.h │ ├── portable.h │ ├── portmacro.h │ ├── projdefs.h │ └── task.h ├── list.c ├── portable │ └── RVDS │ │ └── ARM_CM3 │ │ └── port.c └── task.c ├── keilkilll.bat └── user └── main.c /.gitignore: -------------------------------------------------------------------------------- 1 | # Prerequisites 2 | *.d 3 | 4 | # Object files 5 | *.o 6 | *.ko 7 | *.obj 8 | *.elf 9 | 10 | # Linker output 11 | *.ilk 12 | *.map 13 | *.exp 14 | 15 | # Precompiled Headers 16 | *.gch 17 | *.pch 18 | 19 | # Libraries 20 | *.lib 21 | *.a 22 | *.la 23 | *.lo 24 | 25 | # Shared objects (inc. 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Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. 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 | -------------------------------------------------------------------------------- /Project/EventRecorderStub.scvd: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /Project/Fire_FreeRTOS.uvoptx: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 1.0 5 | 6 |
### uVision Project, (C) Keil Software
7 | 8 | 9 | *.c 10 | *.s*; *.src; *.a* 11 | *.obj; *.o 12 | *.lib 13 | *.txt; *.h; *.inc; *.md 14 | *.plm 15 | *.cpp 16 | 0 17 | 18 | 19 | 20 | 0 21 | 0 22 | 23 | 24 | 25 | Target 1 26 | 0x4 27 | ARM-ADS 28 | 29 | 25000000 30 | 31 | 1 32 | 1 33 | 0 34 | 1 35 | 0 36 | 37 | 38 | 1 39 | 65535 40 | 0 41 | 0 42 | 0 43 | 44 | 45 | 79 46 | 66 47 | 8 48 | .\Listings\ 49 | 50 | 51 | 1 52 | 1 53 | 1 54 | 0 55 | 1 56 | 1 57 | 0 58 | 1 59 | 0 60 | 0 61 | 0 62 | 0 63 | 64 | 65 | 1 66 | 1 67 | 1 68 | 1 69 | 1 70 | 1 71 | 1 72 | 0 73 | 0 74 | 75 | 76 | 1 77 | 0 78 | 1 79 | 80 | 7 81 | 82 | 1 83 | 0 84 | 1 85 | 1 86 | 1 87 | 1 88 | 1 89 | 1 90 | 1 91 | 1 92 | 1 93 | 1 94 | 1 95 | 1 96 | 0 97 | 1 98 | 1 99 | 1 100 | 1 101 | 0 102 | 1 103 | 1 104 | 0 105 | 0 106 | 0 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | BIN\UL2CM3.DLL 118 | 119 | 120 | 121 | 0 122 | ARMRTXEVENTFLAGS 123 | -L70 -Z18 -C0 -M0 -T1 124 | 125 | 126 | 0 127 | DLGDARM 128 | (1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)(1012=-1,-1,-1,-1,0) 129 | 130 | 131 | 0 132 | ARMDBGFLAGS 133 | -T0 134 | 135 | 136 | 0 137 | UL2CM3 138 | UL2CM3(-S0 -C0 -P0 -FD20000000 -FC1000) 139 | 140 | 141 | 142 | 143 | 0 144 | 0 145 | 276 146 | 1 147 |
700
148 | 0 149 | 0 150 | 0 151 | 0 152 | 0 153 | 1 154 | ..\freertos\portable\RVDS\ARM_CM3\port.c 155 | 156 | \\YH_RT_Thread\../freertos/portable/RVDS/ARM_CM3/port.c\276 157 | 158 | 159 | 160 | 161 | 0 162 | 1 163 | Task1TCB 164 | 165 | 166 | 1 167 | 1 168 | Task2TCB 169 | 170 | 171 | 2 172 | 1 173 | pxCurrentTCB 174 | 175 | 176 | 3 177 | 1 178 | IdleTaskTCB 179 | 180 | 181 | 4 182 | 1 183 | xConstTickCount 184 | 185 | 186 | 5 187 | 1 188 | xTicksToWait 189 | 190 | 191 | 6 192 | 1 193 | xTimeToWake 194 | 195 | 196 | 7 197 | 1 198 | xNextTaskUnblockTime 199 | 200 | 201 | 8 202 | 1 203 | pxDelayedTaskList 204 | 205 | 206 | 9 207 | 1 208 | pxOverflowDelayedTaskList 209 | 210 | 211 | 10 212 | 1 213 | pxReadyTasksLists 214 | 215 | 216 | 11 217 | 1 218 | uxTaskNumber 219 | 220 | 221 | 12 222 | 1 223 | xTickCount 224 | 225 | 226 | 13 227 | 1 228 | xTaskIncrementTick() 229 | 230 | 231 | 232 | 233 | 0 234 | 2 235 | Task2TCB 236 | 237 | 238 | 239 | 240 | 1 241 | 0 242 | 0x20000048 243 | 0 244 | 245 | 246 | 247 | 248 | 4 249 | 0 250 | \\YH_RT_Thread\../User/main.c\Task1Stack[19] 251 | 0 252 | 253 | 254 | 255 | 0 256 | 257 | 258 | 0 259 | 1 260 | 1 261 | 0 262 | 0 263 | 0 264 | 0 265 | 1 266 | 0 267 | 0 268 | 0 269 | 0 270 | 0 271 | 0 272 | 0 273 | 0 274 | 1 275 | 0 276 | 0 277 | 0 278 | 0 279 | 0 280 | 0 281 | 0 282 | 283 | 284 | 285 | 0 286 | 0 287 | 0 288 | 289 | 290 | 291 | 292 | 293 | 294 | 295 | 296 | 297 | 298 | 0 299 | `flag1 300 | FF00000000000000000000000000E0FFFFFFEF4101000000000000000000000000000000666C6167310000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000001000000565555555555D53F100000000000000000000000000000000000000044020000 301 | 302 | 303 | 1 304 | `flag2 305 | 0080000000000000000000000000E0FFFFFFEF4101000000000000000000000000000000666C6167320000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000002000000565555555555D53F100000000000000000000000000000000000000044020000 306 | 307 | 308 | 2 309 | `flag3 310 | 0000800000000000000000000000E0FFFFFFEF4101000000000000000000000000000000666C6167330000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000003000000555555555555D53F100000000000000000000000000000000000000058030000 311 | 312 | 313 | 314 | 315 | 316 | 317 | user 318 | 0 319 | 0 320 | 0 321 | 0 322 | 323 | 1 324 | 1 325 | 1 326 | 0 327 | 0 328 | 0 329 | ..\User\main.c 330 | main.c 331 | 0 332 | 0 333 | 334 | 335 | 336 | 337 | FreeRTOS/Ports 338 | 0 339 | 0 340 | 0 341 | 0 342 | 343 | 2 344 | 2 345 | 1 346 | 0 347 | 0 348 | 0 349 | ..\freertos\portable\RVDS\ARM_CM3\port.c 350 | port.c 351 | 0 352 | 0 353 | 354 | 355 | 356 | 357 | FreeRTOS/Source 358 | 0 359 | 0 360 | 0 361 | 0 362 | 363 | 3 364 | 3 365 | 1 366 | 0 367 | 0 368 | 0 369 | ..\freertos\list.c 370 | list.c 371 | 0 372 | 0 373 | 374 | 375 | 3 376 | 4 377 | 5 378 | 0 379 | 0 380 | 0 381 | ..\freertos\include\list.h 382 | list.h 383 | 0 384 | 0 385 | 386 | 387 | 3 388 | 5 389 | 5 390 | 0 391 | 0 392 | 0 393 | ..\freertos\include\FreeRTOSConfig.h 394 | FreeRTOSConfig.h 395 | 0 396 | 0 397 | 398 | 399 | 3 400 | 6 401 | 5 402 | 0 403 | 0 404 | 0 405 | ..\freertos\include\portmacro.h 406 | portmacro.h 407 | 0 408 | 0 409 | 410 | 411 | 3 412 | 7 413 | 5 414 | 0 415 | 0 416 | 0 417 | ..\freertos\include\FreeRTOS.h 418 | FreeRTOS.h 419 | 0 420 | 0 421 | 422 | 423 | 3 424 | 8 425 | 5 426 | 0 427 | 0 428 | 0 429 | ..\freertos\include\portable.h 430 | portable.h 431 | 0 432 | 0 433 | 434 | 435 | 3 436 | 9 437 | 5 438 | 0 439 | 0 440 | 0 441 | ..\freertos\include\projdefs.h 442 | projdefs.h 443 | 0 444 | 0 445 | 446 | 447 | 3 448 | 10 449 | 1 450 | 0 451 | 0 452 | 0 453 | ..\freertos\task.c 454 | task.c 455 | 0 456 | 0 457 | 458 | 459 | 3 460 | 11 461 | 5 462 | 0 463 | 0 464 | 0 465 | ..\freertos\include\task.h 466 | task.h 467 | 0 468 | 0 469 | 470 | 471 | 472 | 473 | docs 474 | 1 475 | 0 476 | 0 477 | 0 478 | 479 | 480 | 481 | ::CMSIS 482 | 0 483 | 0 484 | 0 485 | 1 486 | 487 | 488 | 489 | ::Device 490 | 1 491 | 0 492 | 0 493 | 1 494 | 495 | 496 | 497 | -------------------------------------------------------------------------------- /Project/Fire_FreeRTOS.uvprojx: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 2.1 5 | 6 |
### uVision Project, (C) Keil Software
7 | 8 | 9 | 10 | Target 1 11 | 0x4 12 | ARM-ADS 13 | 5060960::V5.06 update 7 (build 960)::.\ARMCC 14 | 0 15 | 16 | 17 | ARMCM3 18 | ARM 19 | ARM.CMSIS.5.9.0 20 | http://www.keil.com/pack/ 21 | IRAM(0x20000000,0x00020000) IROM(0x00000000,0x00040000) CPUTYPE("Cortex-M3") CLOCK(12000000) ESEL ELITTLE 22 | 23 | 24 | UL2CM3(-S0 -C0 -P0 -FD20000000 -FC1000) 25 | 0 26 | $$Device:ARMCM3$Device\ARM\ARMCM3\Include\ARMCM3.h 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | $$Device:ARMCM3$Device\ARM\SVD\ARMCM3.svd 37 | 0 38 | 0 39 | 40 | 41 | 42 | 43 | 44 | 45 | 0 46 | 0 47 | 0 48 | 0 49 | 1 50 | 51 | .\Objects\ 52 | YH-RT-Thread 53 | 1 54 | 0 55 | 0 56 | 1 57 | 1 58 | .\Listings\ 59 | 1 60 | 0 61 | 0 62 | 63 | 0 64 | 0 65 | 66 | 67 | 0 68 | 0 69 | 0 70 | 0 71 | 72 | 73 | 0 74 | 0 75 | 76 | 77 | 0 78 | 0 79 | 0 80 | 0 81 | 82 | 83 | 0 84 | 0 85 | 86 | 87 | 0 88 | 0 89 | 0 90 | 0 91 | 92 | 0 93 | 94 | 95 | 96 | 0 97 | 0 98 | 0 99 | 0 100 | 0 101 | 1 102 | 0 103 | 0 104 | 0 105 | 0 106 | 3 107 | 108 | 109 | 1 110 | 111 | 112 | SARMCM3.DLL 113 | -MPU 114 | DCM.DLL 115 | -pCM3 116 | SARMCM3.DLL 117 | -MPU 118 | TCM.DLL 119 | -pCM3 120 | 121 | 122 | 123 | 1 124 | 0 125 | 0 126 | 0 127 | 16 128 | 129 | 130 | 131 | 132 | 1 133 | 0 134 | 0 135 | 1 136 | 1 137 | -1 138 | 139 | 1 140 | BIN\UL2CM3.DLL 141 | 142 | 143 | 144 | 145 | 146 | 0 147 | 148 | 149 | 150 | 0 151 | 1 152 | 1 153 | 1 154 | 1 155 | 1 156 | 1 157 | 1 158 | 0 159 | 1 160 | 1 161 | 0 162 | 1 163 | 1 164 | 0 165 | 0 166 | 1 167 | 1 168 | 1 169 | 1 170 | 1 171 | 1 172 | 1 173 | 1 174 | 1 175 | 0 176 | 0 177 | "Cortex-M3" 178 | 179 | 0 180 | 0 181 | 0 182 | 1 183 | 1 184 | 0 185 | 0 186 | 0 187 | 0 188 | 0 189 | 0 190 | 0 191 | 0 192 | 8 193 | 0 194 | 1 195 | 0 196 | 0 197 | 3 198 | 3 199 | 0 200 | 0 201 | 0 202 | 0 203 | 0 204 | 0 205 | 0 206 | 0 207 | 0 208 | 0 209 | 1 210 | 0 211 | 0 212 | 0 213 | 0 214 | 1 215 | 0 216 | 217 | 218 | 0 219 | 0x0 220 | 0x0 221 | 222 | 223 | 0 224 | 0x0 225 | 0x0 226 | 227 | 228 | 0 229 | 0x0 230 | 0x0 231 | 232 | 233 | 0 234 | 0x0 235 | 0x0 236 | 237 | 238 | 0 239 | 0x0 240 | 0x0 241 | 242 | 243 | 0 244 | 0x0 245 | 0x0 246 | 247 | 248 | 0 249 | 0x20000000 250 | 0x20000 251 | 252 | 253 | 1 254 | 0x0 255 | 0x40000 256 | 257 | 258 | 0 259 | 0x0 260 | 0x0 261 | 262 | 263 | 1 264 | 0x0 265 | 0x0 266 | 267 | 268 | 1 269 | 0x0 270 | 0x0 271 | 272 | 273 | 1 274 | 0x0 275 | 0x0 276 | 277 | 278 | 1 279 | 0x0 280 | 0x40000 281 | 282 | 283 | 1 284 | 0x0 285 | 0x0 286 | 287 | 288 | 0 289 | 0x0 290 | 0x0 291 | 292 | 293 | 0 294 | 0x0 295 | 0x0 296 | 297 | 298 | 0 299 | 0x0 300 | 0x0 301 | 302 | 303 | 0 304 | 0x20000000 305 | 0x20000 306 | 307 | 308 | 0 309 | 0x0 310 | 0x0 311 | 312 | 313 | 314 | 315 | 316 | 1 317 | 1 318 | 0 319 | 0 320 | 1 321 | 0 322 | 0 323 | 0 324 | 0 325 | 0 326 | 2 327 | 0 328 | 0 329 | 1 330 | 0 331 | 0 332 | 1 333 | 1 334 | 1 335 | 1 336 | 0 337 | 0 338 | 0 339 | 340 | 341 | 342 | 343 | ..\User;..\freertos\include;..\freertos\portable\RVDS\ARM_CM3 344 | 345 | 346 | 347 | 1 348 | 0 349 | 0 350 | 0 351 | 0 352 | 0 353 | 0 354 | 0 355 | 0 356 | 4 357 | 358 | 359 | 360 | 361 | 362 | 363 | 364 | 365 | 1 366 | 0 367 | 0 368 | 0 369 | 1 370 | 0 371 | 0x00000000 372 | 0x20000000 373 | 374 | 375 | 376 | 377 | 378 | 379 | 380 | 381 | 382 | 383 | 384 | 385 | user 386 | 387 | 388 | main.c 389 | 1 390 | ..\User\main.c 391 | 392 | 393 | 394 | 395 | FreeRTOS/Ports 396 | 397 | 398 | port.c 399 | 1 400 | ..\freertos\portable\RVDS\ARM_CM3\port.c 401 | 402 | 403 | 404 | 405 | FreeRTOS/Source 406 | 407 | 408 | list.c 409 | 1 410 | ..\freertos\list.c 411 | 412 | 413 | list.h 414 | 5 415 | ..\freertos\include\list.h 416 | 417 | 418 | FreeRTOSConfig.h 419 | 5 420 | ..\freertos\include\FreeRTOSConfig.h 421 | 422 | 423 | portmacro.h 424 | 5 425 | ..\freertos\include\portmacro.h 426 | 427 | 428 | FreeRTOS.h 429 | 5 430 | ..\freertos\include\FreeRTOS.h 431 | 432 | 433 | portable.h 434 | 5 435 | ..\freertos\include\portable.h 436 | 437 | 438 | projdefs.h 439 | 5 440 | ..\freertos\include\projdefs.h 441 | 442 | 443 | task.c 444 | 1 445 | ..\freertos\task.c 446 | 447 | 448 | task.h 449 | 5 450 | ..\freertos\include\task.h 451 | 452 | 453 | 454 | 455 | docs 456 | 457 | 458 | ::CMSIS 459 | 460 | 461 | ::Device 462 | 463 | 464 | 465 | 466 | 467 | 468 | 469 | 470 | 471 | 472 | 473 | 474 | 475 | 476 | 477 | 478 | 479 | 480 | 481 | 482 | 483 | 484 | 485 | RTE\Device\ARMCM3\startup_ARMCM3.s 486 | 487 | 488 | 489 | 490 | 491 | 492 | 493 | RTE\Device\ARMCM3\system_ARMCM3.c 494 | 495 | 496 | 497 | 498 | 499 | 500 | 501 | 502 | 503 | 504 | 505 | 506 | Fire_FreeRTOS 507 | 1 508 | 509 | 510 | 511 | 512 | 513 | -------------------------------------------------------------------------------- /Project/Listings/startup_armcm3.lst: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | ARM Macro Assembler Page 1 5 | 6 | 7 | 1 00000000 ;/****************************************************** 8 | ********************//** 9 | 2 00000000 ; * @file startup_ARMCM3.s 10 | 3 00000000 ; * @brief CMSIS Core Device Startup File for 11 | 4 00000000 ; * ARMCM3 Device Series 12 | 5 00000000 ; * @version V5.00 13 | 6 00000000 ; * @date 02. March 2016 14 | 7 00000000 ; ****************************************************** 15 | ************************/ 16 | 8 00000000 ;/* 17 | 9 00000000 ; * Copyright (c) 2009-2016 ARM Limited. All rights rese 18 | rved. 19 | 10 00000000 ; * 20 | 11 00000000 ; * SPDX-License-Identifier: Apache-2.0 21 | 12 00000000 ; * 22 | 13 00000000 ; * Licensed under the Apache License, Version 2.0 (the 23 | License); you may 24 | 14 00000000 ; * not use this file except in compliance with the Lice 25 | nse. 26 | 15 00000000 ; * You may obtain a copy of the License at 27 | 16 00000000 ; * 28 | 17 00000000 ; * www.apache.org/licenses/LICENSE-2.0 29 | 18 00000000 ; * 30 | 19 00000000 ; * Unless required by applicable law or agreed to in wr 31 | iting, software 32 | 20 00000000 ; * distributed under the License is distributed on an A 33 | S IS BASIS, WITHOUT 34 | 21 00000000 ; * WARRANTIES OR CONDITIONS OF ANY KIND, either express 35 | or implied. 36 | 22 00000000 ; * See the License for the specific language governing 37 | permissions and 38 | 23 00000000 ; * limitations under the License. 39 | 24 00000000 ; */ 40 | 25 00000000 41 | 26 00000000 ;/* 42 | 27 00000000 ;//-------- <<< Use Configuration Wizard in Context Menu 43 | >>> ------------------ 44 | 28 00000000 ;*/ 45 | 29 00000000 46 | 30 00000000 47 | 31 00000000 ; Stack Configuration 48 | 32 00000000 ; Stack Size (in Bytes) <0x0-0xFFFFFFFF:8> 49 | 33 00000000 ; 50 | 34 00000000 51 | 35 00000000 00000400 52 | Stack_Size 53 | EQU 0x00000400 54 | 36 00000000 55 | 37 00000000 AREA STACK, NOINIT, READWRITE, ALIGN 56 | =3 57 | 38 00000000 Stack_Mem 58 | SPACE Stack_Size 59 | 39 00000400 __initial_sp 60 | 40 00000400 61 | 41 00000400 62 | 42 00000400 ; Heap Configuration 63 | 43 00000400 ; Heap Size (in Bytes) <0x0-0xFFFFFFFF:8> 64 | 44 00000400 ; 65 | 45 00000400 66 | 67 | 68 | 69 | ARM Macro Assembler Page 2 70 | 71 | 72 | 46 00000400 00000C00 73 | Heap_Size 74 | EQU 0x00000C00 75 | 47 00000400 76 | 48 00000400 AREA HEAP, NOINIT, READWRITE, ALIGN= 77 | 3 78 | 49 00000000 __heap_base 79 | 50 00000000 Heap_Mem 80 | SPACE Heap_Size 81 | 51 00000C00 __heap_limit 82 | 52 00000C00 83 | 53 00000C00 84 | 54 00000C00 PRESERVE8 85 | 55 00000C00 THUMB 86 | 56 00000C00 87 | 57 00000C00 88 | 58 00000C00 ; Vector Table Mapped to Address 0 at Reset 89 | 59 00000C00 90 | 60 00000C00 AREA RESET, DATA, READONLY 91 | 61 00000000 EXPORT __Vectors 92 | 62 00000000 EXPORT __Vectors_End 93 | 63 00000000 EXPORT __Vectors_Size 94 | 64 00000000 95 | 65 00000000 00000000 96 | __Vectors 97 | DCD __initial_sp ; Top of Stack 98 | 66 00000004 00000000 DCD Reset_Handler ; Reset Handler 99 | 67 00000008 00000000 DCD NMI_Handler ; NMI Handler 100 | 68 0000000C 00000000 DCD HardFault_Handler ; Hard Fault 101 | Handler 102 | 69 00000010 00000000 DCD MemManage_Handler 103 | ; MPU Fault Handler 104 | 105 | 70 00000014 00000000 DCD BusFault_Handler 106 | ; Bus Fault Handler 107 | 108 | 71 00000018 00000000 DCD UsageFault_Handler ; Usage Faul 109 | t Handler 110 | 72 0000001C 00000000 DCD 0 ; Reserved 111 | 73 00000020 00000000 DCD 0 ; Reserved 112 | 74 00000024 00000000 DCD 0 ; Reserved 113 | 75 00000028 00000000 DCD 0 ; Reserved 114 | 76 0000002C 00000000 DCD SVC_Handler ; SVCall Handler 115 | 77 00000030 00000000 DCD DebugMon_Handler ; Debug Monito 116 | r Handler 117 | 78 00000034 00000000 DCD 0 ; Reserved 118 | 79 00000038 00000000 DCD PendSV_Handler ; PendSV Handler 119 | 120 | 80 0000003C 00000000 DCD SysTick_Handler 121 | ; SysTick Handler 122 | 81 00000040 123 | 82 00000040 ; External Interrupts 124 | 83 00000040 00000000 DCD WDT_IRQHandler ; 0: Watchdog 125 | Timer 126 | 84 00000044 00000000 DCD RTC_IRQHandler ; 1: Real Time 127 | Clock 128 | 85 00000048 00000000 DCD TIM0_IRQHandler ; 2: Timer0 / 129 | Timer1 130 | 86 0000004C 00000000 DCD TIM2_IRQHandler ; 3: Timer2 / 131 | 132 | 133 | 134 | ARM Macro Assembler Page 3 135 | 136 | 137 | Timer3 138 | 87 00000050 00000000 DCD MCIA_IRQHandler ; 4: MCIa 139 | 88 00000054 00000000 DCD MCIB_IRQHandler ; 5: MCIb 140 | 89 00000058 00000000 DCD UART0_IRQHandler ; 6: UART0 - 141 | DUT FPGA 142 | 90 0000005C 00000000 DCD UART1_IRQHandler ; 7: UART1 - 143 | DUT FPGA 144 | 91 00000060 00000000 DCD UART2_IRQHandler ; 8: UART2 - 145 | DUT FPGA 146 | 92 00000064 00000000 DCD UART4_IRQHandler ; 9: UART4 - 147 | not connected 148 | 93 00000068 00000000 DCD AACI_IRQHandler 149 | ; 10: AACI / AC97 150 | 94 0000006C 00000000 DCD CLCD_IRQHandler ; 11: CLCD Comb 151 | ined Interrupt 152 | 95 00000070 00000000 DCD ENET_IRQHandler ; 12: Ethernet 153 | 96 00000074 00000000 DCD USBDC_IRQHandler 154 | ; 13: USB Device 155 | 97 00000078 00000000 DCD USBHC_IRQHandler ; 14: USB Host 156 | Controller 157 | 98 0000007C 00000000 DCD CHLCD_IRQHandler 158 | ; 15: Character LCD 159 | 160 | 99 00000080 00000000 DCD FLEXRAY_IRQHandler 161 | ; 16: Flexray 162 | 100 00000084 00000000 DCD CAN_IRQHandler ; 17: CAN 163 | 101 00000088 00000000 DCD LIN_IRQHandler ; 18: LIN 164 | 102 0000008C 00000000 DCD I2C_IRQHandler 165 | ; 19: I2C ADC/DAC 166 | 103 00000090 00000000 DCD 0 ; 20: Reserved 167 | 104 00000094 00000000 DCD 0 ; 21: Reserved 168 | 105 00000098 00000000 DCD 0 ; 22: Reserved 169 | 106 0000009C 00000000 DCD 0 ; 23: Reserved 170 | 107 000000A0 00000000 DCD 0 ; 24: Reserved 171 | 108 000000A4 00000000 DCD 0 ; 25: Reserved 172 | 109 000000A8 00000000 DCD 0 ; 26: Reserved 173 | 110 000000AC 00000000 DCD 0 ; 27: Reserved 174 | 111 000000B0 00000000 DCD CPU_CLCD_IRQHandler ; 28: Reser 175 | ved - CPU FPGA CLCD 176 | 177 | 112 000000B4 00000000 DCD 0 ; 29: Reserved - CP 178 | U FPGA 179 | 113 000000B8 00000000 DCD UART3_IRQHandler ; 30: UART3 180 | - CPU FPGA 181 | 114 000000BC 00000000 DCD SPI_IRQHandler ; 31: SPI Touchs 182 | creen - CPU FPGA 183 | 115 000000C0 __Vectors_End 184 | 116 000000C0 185 | 117 000000C0 000000C0 186 | __Vectors_Size 187 | EQU __Vectors_End - __Vectors 188 | 118 000000C0 189 | 119 000000C0 AREA |.text|, CODE, READONLY 190 | 120 00000000 191 | 121 00000000 192 | 122 00000000 ; Reset Handler 193 | 123 00000000 194 | 124 00000000 Reset_Handler 195 | PROC 196 | 197 | 198 | 199 | ARM Macro Assembler Page 4 200 | 201 | 202 | 125 00000000 EXPORT Reset_Handler [WEAK 203 | ] 204 | 126 00000000 IMPORT SystemInit 205 | 127 00000000 IMPORT __main 206 | 128 00000000 4809 LDR R0, =SystemInit 207 | 129 00000002 4780 BLX R0 208 | 130 00000004 4809 LDR R0, =__main 209 | 131 00000006 4700 BX R0 210 | 132 00000008 ENDP 211 | 133 00000008 212 | 134 00000008 213 | 135 00000008 ; Dummy Exception Handlers (infinite loops which can be 214 | modified) 215 | 136 00000008 216 | 137 00000008 NMI_Handler 217 | PROC 218 | 138 00000008 EXPORT NMI_Handler [WEAK 219 | ] 220 | 139 00000008 E7FE B . 221 | 140 0000000A ENDP 222 | 142 0000000A HardFault_Handler 223 | PROC 224 | 143 0000000A EXPORT HardFault_Handler [WEAK 225 | ] 226 | 144 0000000A E7FE B . 227 | 145 0000000C ENDP 228 | 147 0000000C MemManage_Handler 229 | PROC 230 | 148 0000000C EXPORT MemManage_Handler [WEAK 231 | ] 232 | 149 0000000C E7FE B . 233 | 150 0000000E ENDP 234 | 152 0000000E BusFault_Handler 235 | PROC 236 | 153 0000000E EXPORT BusFault_Handler [WEAK 237 | ] 238 | 154 0000000E E7FE B . 239 | 155 00000010 ENDP 240 | 157 00000010 UsageFault_Handler 241 | PROC 242 | 158 00000010 EXPORT UsageFault_Handler [WEAK 243 | ] 244 | 159 00000010 E7FE B . 245 | 160 00000012 ENDP 246 | 161 00000012 SVC_Handler 247 | PROC 248 | 162 00000012 EXPORT SVC_Handler [WEAK 249 | ] 250 | 163 00000012 E7FE B . 251 | 164 00000014 ENDP 252 | 166 00000014 DebugMon_Handler 253 | PROC 254 | 167 00000014 EXPORT DebugMon_Handler [WEAK 255 | ] 256 | 168 00000014 E7FE B . 257 | 169 00000016 ENDP 258 | 170 00000016 PendSV_Handler 259 | PROC 260 | 171 00000016 EXPORT PendSV_Handler [WEAK 261 | 262 | 263 | 264 | ARM Macro Assembler Page 5 265 | 266 | 267 | ] 268 | 172 00000016 E7FE B . 269 | 173 00000018 ENDP 270 | 174 00000018 SysTick_Handler 271 | PROC 272 | 175 00000018 EXPORT SysTick_Handler [WEAK 273 | ] 274 | 176 00000018 E7FE B . 275 | 177 0000001A ENDP 276 | 178 0000001A 277 | 179 0000001A Default_Handler 278 | PROC 279 | 180 0000001A 280 | 181 0000001A EXPORT WDT_IRQHandler [WEAK 281 | ] 282 | 182 0000001A EXPORT RTC_IRQHandler [WEAK 283 | ] 284 | 183 0000001A EXPORT TIM0_IRQHandler [WEAK 285 | ] 286 | 184 0000001A EXPORT TIM2_IRQHandler [WEAK 287 | ] 288 | 185 0000001A EXPORT MCIA_IRQHandler [WEAK 289 | ] 290 | 186 0000001A EXPORT MCIB_IRQHandler [WEAK 291 | ] 292 | 187 0000001A EXPORT UART0_IRQHandler [WEAK 293 | ] 294 | 188 0000001A EXPORT UART1_IRQHandler [WEAK 295 | ] 296 | 189 0000001A EXPORT UART2_IRQHandler [WEAK 297 | ] 298 | 190 0000001A EXPORT UART3_IRQHandler [WEAK 299 | ] 300 | 191 0000001A EXPORT UART4_IRQHandler [WEAK 301 | ] 302 | 192 0000001A EXPORT AACI_IRQHandler [WEAK 303 | ] 304 | 193 0000001A EXPORT CLCD_IRQHandler [WEAK 305 | ] 306 | 194 0000001A EXPORT ENET_IRQHandler [WEAK 307 | ] 308 | 195 0000001A EXPORT USBDC_IRQHandler [WEAK 309 | ] 310 | 196 0000001A EXPORT USBHC_IRQHandler [WEAK 311 | ] 312 | 197 0000001A EXPORT CHLCD_IRQHandler [WEAK 313 | ] 314 | 198 0000001A EXPORT FLEXRAY_IRQHandler [WEAK 315 | ] 316 | 199 0000001A EXPORT CAN_IRQHandler [WEAK 317 | ] 318 | 200 0000001A EXPORT LIN_IRQHandler [WEAK 319 | ] 320 | 201 0000001A EXPORT I2C_IRQHandler [WEAK 321 | ] 322 | 202 0000001A EXPORT CPU_CLCD_IRQHandler [WEAK 323 | ] 324 | 203 0000001A EXPORT SPI_IRQHandler [WEAK 325 | ] 326 | 327 | 328 | 329 | ARM Macro Assembler Page 6 330 | 331 | 332 | 204 0000001A 333 | 205 0000001A WDT_IRQHandler 334 | 206 0000001A RTC_IRQHandler 335 | 207 0000001A TIM0_IRQHandler 336 | 208 0000001A TIM2_IRQHandler 337 | 209 0000001A MCIA_IRQHandler 338 | 210 0000001A MCIB_IRQHandler 339 | 211 0000001A UART0_IRQHandler 340 | 212 0000001A UART1_IRQHandler 341 | 213 0000001A UART2_IRQHandler 342 | 214 0000001A UART3_IRQHandler 343 | 215 0000001A UART4_IRQHandler 344 | 216 0000001A AACI_IRQHandler 345 | 217 0000001A CLCD_IRQHandler 346 | 218 0000001A ENET_IRQHandler 347 | 219 0000001A USBDC_IRQHandler 348 | 220 0000001A USBHC_IRQHandler 349 | 221 0000001A CHLCD_IRQHandler 350 | 222 0000001A FLEXRAY_IRQHandler 351 | 223 0000001A CAN_IRQHandler 352 | 224 0000001A LIN_IRQHandler 353 | 225 0000001A I2C_IRQHandler 354 | 226 0000001A CPU_CLCD_IRQHandler 355 | 227 0000001A SPI_IRQHandler 356 | 228 0000001A E7FE B . 357 | 229 0000001C 358 | 230 0000001C ENDP 359 | 231 0000001C 360 | 232 0000001C 361 | 233 0000001C ALIGN 362 | 234 0000001C 363 | 235 0000001C 364 | 236 0000001C ; User Initial Stack & Heap 365 | 237 0000001C 366 | 238 0000001C IF :DEF:__MICROLIB 367 | 245 0000001C 368 | 246 0000001C IMPORT __use_two_region_memory 369 | 247 0000001C EXPORT __user_initial_stackheap 370 | 248 0000001C 371 | 249 0000001C __user_initial_stackheap 372 | PROC 373 | 250 0000001C 4804 LDR R0, = Heap_Mem 374 | 251 0000001E 4905 LDR R1, =(Stack_Mem + Stack_Size) 375 | 252 00000020 4A05 LDR R2, = (Heap_Mem + Heap_Size) 376 | 253 00000022 4B06 LDR R3, = Stack_Mem 377 | 254 00000024 4770 BX LR 378 | 255 00000026 ENDP 379 | 256 00000026 380 | 257 00000026 00 00 ALIGN 381 | 258 00000028 382 | 259 00000028 ENDIF 383 | 260 00000028 384 | 261 00000028 385 | 262 00000028 END 386 | 00000000 387 | 00000000 388 | 00000000 389 | 00000400 390 | 00000C00 391 | 392 | 393 | 394 | ARM Macro Assembler Page 7 395 | 396 | 397 | 00000000 398 | Command Line: --debug --xref --diag_suppress=9931 --cpu=Cortex-M3 --apcs=interw 399 | ork --depend=.\objects\startup_armcm3.d -o.\objects\startup_armcm3.o -I.\RTE\_T 400 | arget_1 -IE:\Keil\Packs\ARM\CMSIS\5.9.0\CMSIS\Core\Include -IE:\Keil\Packs\ARM\ 401 | CMSIS\5.9.0\Device\ARM\ARMCM3\Include --predefine="__UVISION_VERSION SETA 537" 402 | --predefine="_RTE_ SETA 1" --predefine="ARMCM3 SETA 1" --predefine="_RTE_ SETA 403 | 1" --list=.\listings\startup_armcm3.lst RTE/Device/ARMCM3/startup_ARMCM3.s 404 | 405 | 406 | 407 | ARM Macro Assembler Page 1 Alphabetic symbol ordering 408 | Relocatable symbols 409 | 410 | STACK 00000000 411 | 412 | Symbol: STACK 413 | Definitions 414 | At line 37 in file RTE/Device/ARMCM3/startup_ARMCM3.s 415 | Uses 416 | None 417 | Comment: STACK unused 418 | Stack_Mem 00000000 419 | 420 | Symbol: Stack_Mem 421 | Definitions 422 | At line 38 in file RTE/Device/ARMCM3/startup_ARMCM3.s 423 | Uses 424 | At line 251 in file RTE/Device/ARMCM3/startup_ARMCM3.s 425 | At line 253 in file RTE/Device/ARMCM3/startup_ARMCM3.s 426 | 427 | __initial_sp 00000400 428 | 429 | Symbol: __initial_sp 430 | Definitions 431 | At line 39 in file RTE/Device/ARMCM3/startup_ARMCM3.s 432 | Uses 433 | At line 65 in file RTE/Device/ARMCM3/startup_ARMCM3.s 434 | Comment: __initial_sp used once 435 | 3 symbols 436 | 437 | 438 | 439 | ARM Macro Assembler Page 1 Alphabetic symbol ordering 440 | Relocatable symbols 441 | 442 | HEAP 00000000 443 | 444 | Symbol: HEAP 445 | Definitions 446 | At line 48 in file RTE/Device/ARMCM3/startup_ARMCM3.s 447 | Uses 448 | None 449 | Comment: HEAP unused 450 | Heap_Mem 00000000 451 | 452 | Symbol: Heap_Mem 453 | Definitions 454 | At line 50 in file RTE/Device/ARMCM3/startup_ARMCM3.s 455 | Uses 456 | At line 250 in file RTE/Device/ARMCM3/startup_ARMCM3.s 457 | At line 252 in file RTE/Device/ARMCM3/startup_ARMCM3.s 458 | 459 | __heap_base 00000000 460 | 461 | Symbol: __heap_base 462 | Definitions 463 | At line 49 in file RTE/Device/ARMCM3/startup_ARMCM3.s 464 | Uses 465 | None 466 | Comment: __heap_base unused 467 | __heap_limit 00000C00 468 | 469 | Symbol: __heap_limit 470 | Definitions 471 | At line 51 in file RTE/Device/ARMCM3/startup_ARMCM3.s 472 | Uses 473 | None 474 | Comment: __heap_limit unused 475 | 4 symbols 476 | 477 | 478 | 479 | ARM Macro Assembler Page 1 Alphabetic symbol ordering 480 | Relocatable symbols 481 | 482 | RESET 00000000 483 | 484 | Symbol: RESET 485 | Definitions 486 | At line 60 in file RTE/Device/ARMCM3/startup_ARMCM3.s 487 | Uses 488 | None 489 | Comment: RESET unused 490 | __Vectors 00000000 491 | 492 | Symbol: __Vectors 493 | Definitions 494 | At line 65 in file RTE/Device/ARMCM3/startup_ARMCM3.s 495 | Uses 496 | At line 61 in file RTE/Device/ARMCM3/startup_ARMCM3.s 497 | At line 117 in file RTE/Device/ARMCM3/startup_ARMCM3.s 498 | 499 | __Vectors_End 000000C0 500 | 501 | Symbol: __Vectors_End 502 | Definitions 503 | At line 115 in file RTE/Device/ARMCM3/startup_ARMCM3.s 504 | Uses 505 | At line 62 in file RTE/Device/ARMCM3/startup_ARMCM3.s 506 | At line 117 in file RTE/Device/ARMCM3/startup_ARMCM3.s 507 | 508 | 3 symbols 509 | 510 | 511 | 512 | ARM Macro Assembler Page 1 Alphabetic symbol ordering 513 | Relocatable symbols 514 | 515 | .text 00000000 516 | 517 | Symbol: .text 518 | Definitions 519 | At line 119 in file RTE/Device/ARMCM3/startup_ARMCM3.s 520 | Uses 521 | None 522 | Comment: .text unused 523 | AACI_IRQHandler 0000001A 524 | 525 | Symbol: AACI_IRQHandler 526 | Definitions 527 | At line 216 in file RTE/Device/ARMCM3/startup_ARMCM3.s 528 | Uses 529 | At line 93 in file RTE/Device/ARMCM3/startup_ARMCM3.s 530 | At line 192 in file RTE/Device/ARMCM3/startup_ARMCM3.s 531 | 532 | BusFault_Handler 0000000E 533 | 534 | Symbol: BusFault_Handler 535 | Definitions 536 | At line 152 in file RTE/Device/ARMCM3/startup_ARMCM3.s 537 | Uses 538 | At line 70 in file RTE/Device/ARMCM3/startup_ARMCM3.s 539 | At line 153 in file RTE/Device/ARMCM3/startup_ARMCM3.s 540 | 541 | CAN_IRQHandler 0000001A 542 | 543 | Symbol: CAN_IRQHandler 544 | Definitions 545 | At line 223 in file RTE/Device/ARMCM3/startup_ARMCM3.s 546 | Uses 547 | At line 100 in file RTE/Device/ARMCM3/startup_ARMCM3.s 548 | At line 199 in file RTE/Device/ARMCM3/startup_ARMCM3.s 549 | 550 | CHLCD_IRQHandler 0000001A 551 | 552 | Symbol: CHLCD_IRQHandler 553 | Definitions 554 | At line 221 in file RTE/Device/ARMCM3/startup_ARMCM3.s 555 | Uses 556 | At line 98 in file RTE/Device/ARMCM3/startup_ARMCM3.s 557 | At line 197 in file RTE/Device/ARMCM3/startup_ARMCM3.s 558 | 559 | CLCD_IRQHandler 0000001A 560 | 561 | Symbol: CLCD_IRQHandler 562 | Definitions 563 | At line 217 in file RTE/Device/ARMCM3/startup_ARMCM3.s 564 | Uses 565 | At line 94 in file RTE/Device/ARMCM3/startup_ARMCM3.s 566 | At line 193 in file RTE/Device/ARMCM3/startup_ARMCM3.s 567 | 568 | CPU_CLCD_IRQHandler 0000001A 569 | 570 | Symbol: CPU_CLCD_IRQHandler 571 | Definitions 572 | At line 226 in file RTE/Device/ARMCM3/startup_ARMCM3.s 573 | Uses 574 | 575 | 576 | 577 | ARM Macro Assembler Page 2 Alphabetic symbol ordering 578 | Relocatable symbols 579 | 580 | At line 111 in file RTE/Device/ARMCM3/startup_ARMCM3.s 581 | At line 202 in file RTE/Device/ARMCM3/startup_ARMCM3.s 582 | 583 | DebugMon_Handler 00000014 584 | 585 | Symbol: DebugMon_Handler 586 | Definitions 587 | At line 166 in file RTE/Device/ARMCM3/startup_ARMCM3.s 588 | Uses 589 | At line 77 in file RTE/Device/ARMCM3/startup_ARMCM3.s 590 | At line 167 in file RTE/Device/ARMCM3/startup_ARMCM3.s 591 | 592 | Default_Handler 0000001A 593 | 594 | Symbol: Default_Handler 595 | Definitions 596 | At line 179 in file RTE/Device/ARMCM3/startup_ARMCM3.s 597 | Uses 598 | None 599 | Comment: Default_Handler unused 600 | ENET_IRQHandler 0000001A 601 | 602 | Symbol: ENET_IRQHandler 603 | Definitions 604 | At line 218 in file RTE/Device/ARMCM3/startup_ARMCM3.s 605 | Uses 606 | At line 95 in file RTE/Device/ARMCM3/startup_ARMCM3.s 607 | At line 194 in file RTE/Device/ARMCM3/startup_ARMCM3.s 608 | 609 | FLEXRAY_IRQHandler 0000001A 610 | 611 | Symbol: FLEXRAY_IRQHandler 612 | Definitions 613 | At line 222 in file RTE/Device/ARMCM3/startup_ARMCM3.s 614 | Uses 615 | At line 99 in file RTE/Device/ARMCM3/startup_ARMCM3.s 616 | At line 198 in file RTE/Device/ARMCM3/startup_ARMCM3.s 617 | 618 | HardFault_Handler 0000000A 619 | 620 | Symbol: HardFault_Handler 621 | Definitions 622 | At line 142 in file RTE/Device/ARMCM3/startup_ARMCM3.s 623 | Uses 624 | At line 68 in file RTE/Device/ARMCM3/startup_ARMCM3.s 625 | At line 143 in file RTE/Device/ARMCM3/startup_ARMCM3.s 626 | 627 | I2C_IRQHandler 0000001A 628 | 629 | Symbol: I2C_IRQHandler 630 | Definitions 631 | At line 225 in file RTE/Device/ARMCM3/startup_ARMCM3.s 632 | Uses 633 | At line 102 in file RTE/Device/ARMCM3/startup_ARMCM3.s 634 | At line 201 in file RTE/Device/ARMCM3/startup_ARMCM3.s 635 | 636 | LIN_IRQHandler 0000001A 637 | 638 | Symbol: LIN_IRQHandler 639 | 640 | 641 | 642 | ARM Macro Assembler Page 3 Alphabetic symbol ordering 643 | Relocatable symbols 644 | 645 | Definitions 646 | At line 224 in file RTE/Device/ARMCM3/startup_ARMCM3.s 647 | Uses 648 | At line 101 in file RTE/Device/ARMCM3/startup_ARMCM3.s 649 | At line 200 in file RTE/Device/ARMCM3/startup_ARMCM3.s 650 | 651 | MCIA_IRQHandler 0000001A 652 | 653 | Symbol: MCIA_IRQHandler 654 | Definitions 655 | At line 209 in file RTE/Device/ARMCM3/startup_ARMCM3.s 656 | Uses 657 | At line 87 in file RTE/Device/ARMCM3/startup_ARMCM3.s 658 | At line 185 in file RTE/Device/ARMCM3/startup_ARMCM3.s 659 | 660 | MCIB_IRQHandler 0000001A 661 | 662 | Symbol: MCIB_IRQHandler 663 | Definitions 664 | At line 210 in file RTE/Device/ARMCM3/startup_ARMCM3.s 665 | Uses 666 | At line 88 in file RTE/Device/ARMCM3/startup_ARMCM3.s 667 | At line 186 in file RTE/Device/ARMCM3/startup_ARMCM3.s 668 | 669 | MemManage_Handler 0000000C 670 | 671 | Symbol: MemManage_Handler 672 | Definitions 673 | At line 147 in file RTE/Device/ARMCM3/startup_ARMCM3.s 674 | Uses 675 | At line 69 in file RTE/Device/ARMCM3/startup_ARMCM3.s 676 | At line 148 in file RTE/Device/ARMCM3/startup_ARMCM3.s 677 | 678 | NMI_Handler 00000008 679 | 680 | Symbol: NMI_Handler 681 | Definitions 682 | At line 137 in file RTE/Device/ARMCM3/startup_ARMCM3.s 683 | Uses 684 | At line 67 in file RTE/Device/ARMCM3/startup_ARMCM3.s 685 | At line 138 in file RTE/Device/ARMCM3/startup_ARMCM3.s 686 | 687 | PendSV_Handler 00000016 688 | 689 | Symbol: PendSV_Handler 690 | Definitions 691 | At line 170 in file RTE/Device/ARMCM3/startup_ARMCM3.s 692 | Uses 693 | At line 79 in file RTE/Device/ARMCM3/startup_ARMCM3.s 694 | At line 171 in file RTE/Device/ARMCM3/startup_ARMCM3.s 695 | 696 | RTC_IRQHandler 0000001A 697 | 698 | Symbol: RTC_IRQHandler 699 | Definitions 700 | At line 206 in file RTE/Device/ARMCM3/startup_ARMCM3.s 701 | Uses 702 | At line 84 in file RTE/Device/ARMCM3/startup_ARMCM3.s 703 | At line 182 in file RTE/Device/ARMCM3/startup_ARMCM3.s 704 | 705 | 706 | 707 | ARM Macro Assembler Page 4 Alphabetic symbol ordering 708 | Relocatable symbols 709 | 710 | 711 | Reset_Handler 00000000 712 | 713 | Symbol: Reset_Handler 714 | Definitions 715 | At line 124 in file RTE/Device/ARMCM3/startup_ARMCM3.s 716 | Uses 717 | At line 66 in file RTE/Device/ARMCM3/startup_ARMCM3.s 718 | At line 125 in file RTE/Device/ARMCM3/startup_ARMCM3.s 719 | 720 | SPI_IRQHandler 0000001A 721 | 722 | Symbol: SPI_IRQHandler 723 | Definitions 724 | At line 227 in file RTE/Device/ARMCM3/startup_ARMCM3.s 725 | Uses 726 | At line 114 in file RTE/Device/ARMCM3/startup_ARMCM3.s 727 | At line 203 in file RTE/Device/ARMCM3/startup_ARMCM3.s 728 | 729 | SVC_Handler 00000012 730 | 731 | Symbol: SVC_Handler 732 | Definitions 733 | At line 161 in file RTE/Device/ARMCM3/startup_ARMCM3.s 734 | Uses 735 | At line 76 in file RTE/Device/ARMCM3/startup_ARMCM3.s 736 | At line 162 in file RTE/Device/ARMCM3/startup_ARMCM3.s 737 | 738 | SysTick_Handler 00000018 739 | 740 | Symbol: SysTick_Handler 741 | Definitions 742 | At line 174 in file RTE/Device/ARMCM3/startup_ARMCM3.s 743 | Uses 744 | At line 80 in file RTE/Device/ARMCM3/startup_ARMCM3.s 745 | At line 175 in file RTE/Device/ARMCM3/startup_ARMCM3.s 746 | 747 | TIM0_IRQHandler 0000001A 748 | 749 | Symbol: TIM0_IRQHandler 750 | Definitions 751 | At line 207 in file RTE/Device/ARMCM3/startup_ARMCM3.s 752 | Uses 753 | At line 85 in file RTE/Device/ARMCM3/startup_ARMCM3.s 754 | At line 183 in file RTE/Device/ARMCM3/startup_ARMCM3.s 755 | 756 | TIM2_IRQHandler 0000001A 757 | 758 | Symbol: TIM2_IRQHandler 759 | Definitions 760 | At line 208 in file RTE/Device/ARMCM3/startup_ARMCM3.s 761 | Uses 762 | At line 86 in file RTE/Device/ARMCM3/startup_ARMCM3.s 763 | At line 184 in file RTE/Device/ARMCM3/startup_ARMCM3.s 764 | 765 | UART0_IRQHandler 0000001A 766 | 767 | Symbol: UART0_IRQHandler 768 | Definitions 769 | 770 | 771 | 772 | ARM Macro Assembler Page 5 Alphabetic symbol ordering 773 | Relocatable symbols 774 | 775 | At line 211 in file RTE/Device/ARMCM3/startup_ARMCM3.s 776 | Uses 777 | At line 89 in file RTE/Device/ARMCM3/startup_ARMCM3.s 778 | At line 187 in file RTE/Device/ARMCM3/startup_ARMCM3.s 779 | 780 | UART1_IRQHandler 0000001A 781 | 782 | Symbol: UART1_IRQHandler 783 | Definitions 784 | At line 212 in file RTE/Device/ARMCM3/startup_ARMCM3.s 785 | Uses 786 | At line 90 in file RTE/Device/ARMCM3/startup_ARMCM3.s 787 | At line 188 in file RTE/Device/ARMCM3/startup_ARMCM3.s 788 | 789 | UART2_IRQHandler 0000001A 790 | 791 | Symbol: UART2_IRQHandler 792 | Definitions 793 | At line 213 in file RTE/Device/ARMCM3/startup_ARMCM3.s 794 | Uses 795 | At line 91 in file RTE/Device/ARMCM3/startup_ARMCM3.s 796 | At line 189 in file RTE/Device/ARMCM3/startup_ARMCM3.s 797 | 798 | UART3_IRQHandler 0000001A 799 | 800 | Symbol: UART3_IRQHandler 801 | Definitions 802 | At line 214 in file RTE/Device/ARMCM3/startup_ARMCM3.s 803 | Uses 804 | At line 113 in file RTE/Device/ARMCM3/startup_ARMCM3.s 805 | At line 190 in file RTE/Device/ARMCM3/startup_ARMCM3.s 806 | 807 | UART4_IRQHandler 0000001A 808 | 809 | Symbol: UART4_IRQHandler 810 | Definitions 811 | At line 215 in file RTE/Device/ARMCM3/startup_ARMCM3.s 812 | Uses 813 | At line 92 in file RTE/Device/ARMCM3/startup_ARMCM3.s 814 | At line 191 in file RTE/Device/ARMCM3/startup_ARMCM3.s 815 | 816 | USBDC_IRQHandler 0000001A 817 | 818 | Symbol: USBDC_IRQHandler 819 | Definitions 820 | At line 219 in file RTE/Device/ARMCM3/startup_ARMCM3.s 821 | Uses 822 | At line 96 in file RTE/Device/ARMCM3/startup_ARMCM3.s 823 | At line 195 in file RTE/Device/ARMCM3/startup_ARMCM3.s 824 | 825 | USBHC_IRQHandler 0000001A 826 | 827 | Symbol: USBHC_IRQHandler 828 | Definitions 829 | At line 220 in file RTE/Device/ARMCM3/startup_ARMCM3.s 830 | Uses 831 | At line 97 in file RTE/Device/ARMCM3/startup_ARMCM3.s 832 | At line 196 in file RTE/Device/ARMCM3/startup_ARMCM3.s 833 | 834 | 835 | 836 | 837 | ARM Macro Assembler Page 6 Alphabetic symbol ordering 838 | Relocatable symbols 839 | 840 | UsageFault_Handler 00000010 841 | 842 | Symbol: UsageFault_Handler 843 | Definitions 844 | At line 157 in file RTE/Device/ARMCM3/startup_ARMCM3.s 845 | Uses 846 | At line 71 in file RTE/Device/ARMCM3/startup_ARMCM3.s 847 | At line 158 in file RTE/Device/ARMCM3/startup_ARMCM3.s 848 | 849 | WDT_IRQHandler 0000001A 850 | 851 | Symbol: WDT_IRQHandler 852 | Definitions 853 | At line 205 in file RTE/Device/ARMCM3/startup_ARMCM3.s 854 | Uses 855 | At line 83 in file RTE/Device/ARMCM3/startup_ARMCM3.s 856 | At line 181 in file RTE/Device/ARMCM3/startup_ARMCM3.s 857 | 858 | __user_initial_stackheap 0000001C 859 | 860 | Symbol: __user_initial_stackheap 861 | Definitions 862 | At line 249 in file RTE/Device/ARMCM3/startup_ARMCM3.s 863 | Uses 864 | At line 247 in file RTE/Device/ARMCM3/startup_ARMCM3.s 865 | Comment: __user_initial_stackheap used once 866 | 36 symbols 867 | 868 | 869 | 870 | ARM Macro Assembler Page 1 Alphabetic symbol ordering 871 | Absolute symbols 872 | 873 | Heap_Size 00000C00 874 | 875 | Symbol: Heap_Size 876 | Definitions 877 | At line 46 in file RTE/Device/ARMCM3/startup_ARMCM3.s 878 | Uses 879 | At line 50 in file RTE/Device/ARMCM3/startup_ARMCM3.s 880 | At line 252 in file RTE/Device/ARMCM3/startup_ARMCM3.s 881 | 882 | Stack_Size 00000400 883 | 884 | Symbol: Stack_Size 885 | Definitions 886 | At line 35 in file RTE/Device/ARMCM3/startup_ARMCM3.s 887 | Uses 888 | At line 38 in file RTE/Device/ARMCM3/startup_ARMCM3.s 889 | At line 251 in file RTE/Device/ARMCM3/startup_ARMCM3.s 890 | 891 | __Vectors_Size 000000C0 892 | 893 | Symbol: __Vectors_Size 894 | Definitions 895 | At line 117 in file RTE/Device/ARMCM3/startup_ARMCM3.s 896 | Uses 897 | At line 63 in file RTE/Device/ARMCM3/startup_ARMCM3.s 898 | Comment: __Vectors_Size used once 899 | 3 symbols 900 | 901 | 902 | 903 | ARM Macro Assembler Page 1 Alphabetic symbol ordering 904 | External symbols 905 | 906 | SystemInit 00000000 907 | 908 | Symbol: SystemInit 909 | Definitions 910 | At line 126 in file RTE/Device/ARMCM3/startup_ARMCM3.s 911 | Uses 912 | At line 128 in file RTE/Device/ARMCM3/startup_ARMCM3.s 913 | Comment: SystemInit used once 914 | __main 00000000 915 | 916 | Symbol: __main 917 | Definitions 918 | At line 127 in file RTE/Device/ARMCM3/startup_ARMCM3.s 919 | Uses 920 | At line 130 in file RTE/Device/ARMCM3/startup_ARMCM3.s 921 | Comment: __main used once 922 | __use_two_region_memory 00000000 923 | 924 | Symbol: __use_two_region_memory 925 | Definitions 926 | At line 246 in file RTE/Device/ARMCM3/startup_ARMCM3.s 927 | Uses 928 | None 929 | Comment: __use_two_region_memory unused 930 | 3 symbols 931 | 389 symbols in table 932 | -------------------------------------------------------------------------------- /Project/Objects/.gitkeep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/Project/Objects/.gitkeep -------------------------------------------------------------------------------- /Project/RTE/Device/ARMCM3/startup_ARMCM3.s: -------------------------------------------------------------------------------- 1 | ;/**************************************************************************//** 2 | ; * @file startup_ARMCM3.s 3 | ; * @brief CMSIS Core Device Startup File for 4 | ; * ARMCM3 Device Series 5 | ; * @version V5.00 6 | ; * @date 02. March 2016 7 | ; ******************************************************************************/ 8 | ;/* 9 | ; * Copyright (c) 2009-2016 ARM Limited. All rights reserved. 10 | ; * 11 | ; * SPDX-License-Identifier: Apache-2.0 12 | ; * 13 | ; * Licensed under the Apache License, Version 2.0 (the License); you may 14 | ; * not use this file except in compliance with the License. 15 | ; * You may obtain a copy of the License at 16 | ; * 17 | ; * www.apache.org/licenses/LICENSE-2.0 18 | ; * 19 | ; * Unless required by applicable law or agreed to in writing, software 20 | ; * distributed under the License is distributed on an AS IS BASIS, WITHOUT 21 | ; * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 22 | ; * See the License for the specific language governing permissions and 23 | ; * limitations under the License. 24 | ; */ 25 | 26 | ;/* 27 | ;//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------ 28 | ;*/ 29 | 30 | 31 | ; Stack Configuration 32 | ; Stack Size (in Bytes) <0x0-0xFFFFFFFF:8> 33 | ; 34 | 35 | Stack_Size EQU 0x00000400 36 | 37 | AREA STACK, NOINIT, READWRITE, ALIGN=3 38 | Stack_Mem SPACE Stack_Size 39 | __initial_sp 40 | 41 | 42 | ; Heap Configuration 43 | ; Heap Size (in Bytes) <0x0-0xFFFFFFFF:8> 44 | ; 45 | 46 | Heap_Size EQU 0x00000C00 47 | 48 | AREA HEAP, NOINIT, READWRITE, ALIGN=3 49 | __heap_base 50 | Heap_Mem SPACE Heap_Size 51 | __heap_limit 52 | 53 | 54 | PRESERVE8 55 | THUMB 56 | 57 | 58 | ; Vector Table Mapped to Address 0 at Reset 59 | 60 | AREA RESET, DATA, READONLY 61 | EXPORT __Vectors 62 | EXPORT __Vectors_End 63 | EXPORT __Vectors_Size 64 | 65 | __Vectors DCD __initial_sp ; Top of Stack 66 | DCD Reset_Handler ; Reset Handler 67 | DCD NMI_Handler ; NMI Handler 68 | DCD HardFault_Handler ; Hard Fault Handler 69 | DCD MemManage_Handler ; MPU Fault Handler 70 | DCD BusFault_Handler ; Bus Fault Handler 71 | DCD UsageFault_Handler ; Usage Fault Handler 72 | DCD 0 ; Reserved 73 | DCD 0 ; Reserved 74 | DCD 0 ; Reserved 75 | DCD 0 ; Reserved 76 | DCD SVC_Handler ; SVCall Handler 77 | DCD DebugMon_Handler ; Debug Monitor Handler 78 | DCD 0 ; Reserved 79 | DCD PendSV_Handler ; PendSV Handler 80 | DCD SysTick_Handler ; SysTick Handler 81 | 82 | ; External Interrupts 83 | DCD WDT_IRQHandler ; 0: Watchdog Timer 84 | DCD RTC_IRQHandler ; 1: Real Time Clock 85 | DCD TIM0_IRQHandler ; 2: Timer0 / Timer1 86 | DCD TIM2_IRQHandler ; 3: Timer2 / Timer3 87 | DCD MCIA_IRQHandler ; 4: MCIa 88 | DCD MCIB_IRQHandler ; 5: MCIb 89 | DCD UART0_IRQHandler ; 6: UART0 - DUT FPGA 90 | DCD UART1_IRQHandler ; 7: UART1 - DUT FPGA 91 | DCD UART2_IRQHandler ; 8: UART2 - DUT FPGA 92 | DCD UART4_IRQHandler ; 9: UART4 - not connected 93 | DCD AACI_IRQHandler ; 10: AACI / AC97 94 | DCD CLCD_IRQHandler ; 11: CLCD Combined Interrupt 95 | DCD ENET_IRQHandler ; 12: Ethernet 96 | DCD USBDC_IRQHandler ; 13: USB Device 97 | DCD USBHC_IRQHandler ; 14: USB Host Controller 98 | DCD CHLCD_IRQHandler ; 15: Character LCD 99 | DCD FLEXRAY_IRQHandler ; 16: Flexray 100 | DCD CAN_IRQHandler ; 17: CAN 101 | DCD LIN_IRQHandler ; 18: LIN 102 | DCD I2C_IRQHandler ; 19: I2C ADC/DAC 103 | DCD 0 ; 20: Reserved 104 | DCD 0 ; 21: Reserved 105 | DCD 0 ; 22: Reserved 106 | DCD 0 ; 23: Reserved 107 | DCD 0 ; 24: Reserved 108 | DCD 0 ; 25: Reserved 109 | DCD 0 ; 26: Reserved 110 | DCD 0 ; 27: Reserved 111 | DCD CPU_CLCD_IRQHandler ; 28: Reserved - CPU FPGA CLCD 112 | DCD 0 ; 29: Reserved - CPU FPGA 113 | DCD UART3_IRQHandler ; 30: UART3 - CPU FPGA 114 | DCD SPI_IRQHandler ; 31: SPI Touchscreen - CPU FPGA 115 | __Vectors_End 116 | 117 | __Vectors_Size EQU __Vectors_End - __Vectors 118 | 119 | AREA |.text|, CODE, READONLY 120 | 121 | 122 | ; Reset Handler 123 | 124 | Reset_Handler PROC 125 | EXPORT Reset_Handler [WEAK] 126 | IMPORT SystemInit 127 | IMPORT __main 128 | LDR R0, =SystemInit 129 | BLX R0 130 | LDR R0, =__main 131 | BX R0 132 | ENDP 133 | 134 | 135 | ; Dummy Exception Handlers (infinite loops which can be modified) 136 | 137 | NMI_Handler PROC 138 | EXPORT NMI_Handler [WEAK] 139 | B . 140 | ENDP 141 | HardFault_Handler\ 142 | PROC 143 | EXPORT HardFault_Handler [WEAK] 144 | B . 145 | ENDP 146 | MemManage_Handler\ 147 | PROC 148 | EXPORT MemManage_Handler [WEAK] 149 | B . 150 | ENDP 151 | BusFault_Handler\ 152 | PROC 153 | EXPORT BusFault_Handler [WEAK] 154 | B . 155 | ENDP 156 | UsageFault_Handler\ 157 | PROC 158 | EXPORT UsageFault_Handler [WEAK] 159 | B . 160 | ENDP 161 | SVC_Handler PROC 162 | EXPORT SVC_Handler [WEAK] 163 | B . 164 | ENDP 165 | DebugMon_Handler\ 166 | PROC 167 | EXPORT DebugMon_Handler [WEAK] 168 | B . 169 | ENDP 170 | PendSV_Handler PROC 171 | EXPORT PendSV_Handler [WEAK] 172 | B . 173 | ENDP 174 | SysTick_Handler PROC 175 | EXPORT SysTick_Handler [WEAK] 176 | B . 177 | ENDP 178 | 179 | Default_Handler PROC 180 | 181 | EXPORT WDT_IRQHandler [WEAK] 182 | EXPORT RTC_IRQHandler [WEAK] 183 | EXPORT TIM0_IRQHandler [WEAK] 184 | EXPORT TIM2_IRQHandler [WEAK] 185 | EXPORT MCIA_IRQHandler [WEAK] 186 | EXPORT MCIB_IRQHandler [WEAK] 187 | EXPORT UART0_IRQHandler [WEAK] 188 | EXPORT UART1_IRQHandler [WEAK] 189 | EXPORT UART2_IRQHandler [WEAK] 190 | EXPORT UART3_IRQHandler [WEAK] 191 | EXPORT UART4_IRQHandler [WEAK] 192 | EXPORT AACI_IRQHandler [WEAK] 193 | EXPORT CLCD_IRQHandler [WEAK] 194 | EXPORT ENET_IRQHandler [WEAK] 195 | EXPORT USBDC_IRQHandler [WEAK] 196 | EXPORT USBHC_IRQHandler [WEAK] 197 | EXPORT CHLCD_IRQHandler [WEAK] 198 | EXPORT FLEXRAY_IRQHandler [WEAK] 199 | EXPORT CAN_IRQHandler [WEAK] 200 | EXPORT LIN_IRQHandler [WEAK] 201 | EXPORT I2C_IRQHandler [WEAK] 202 | EXPORT CPU_CLCD_IRQHandler [WEAK] 203 | EXPORT SPI_IRQHandler [WEAK] 204 | 205 | WDT_IRQHandler 206 | RTC_IRQHandler 207 | TIM0_IRQHandler 208 | TIM2_IRQHandler 209 | MCIA_IRQHandler 210 | MCIB_IRQHandler 211 | UART0_IRQHandler 212 | UART1_IRQHandler 213 | UART2_IRQHandler 214 | UART3_IRQHandler 215 | UART4_IRQHandler 216 | AACI_IRQHandler 217 | CLCD_IRQHandler 218 | ENET_IRQHandler 219 | USBDC_IRQHandler 220 | USBHC_IRQHandler 221 | CHLCD_IRQHandler 222 | FLEXRAY_IRQHandler 223 | CAN_IRQHandler 224 | LIN_IRQHandler 225 | I2C_IRQHandler 226 | CPU_CLCD_IRQHandler 227 | SPI_IRQHandler 228 | B . 229 | 230 | ENDP 231 | 232 | 233 | ALIGN 234 | 235 | 236 | ; User Initial Stack & Heap 237 | 238 | IF :DEF:__MICROLIB 239 | 240 | EXPORT __initial_sp 241 | EXPORT __heap_base 242 | EXPORT __heap_limit 243 | 244 | ELSE 245 | 246 | IMPORT __use_two_region_memory 247 | EXPORT __user_initial_stackheap 248 | 249 | __user_initial_stackheap PROC 250 | LDR R0, = Heap_Mem 251 | LDR R1, =(Stack_Mem + Stack_Size) 252 | LDR R2, = (Heap_Mem + Heap_Size) 253 | LDR R3, = Stack_Mem 254 | BX LR 255 | ENDP 256 | 257 | ALIGN 258 | 259 | ENDIF 260 | 261 | 262 | END 263 | -------------------------------------------------------------------------------- /Project/RTE/Device/ARMCM3/startup_ARMCM3.s@1.0.1: -------------------------------------------------------------------------------- 1 | ;/**************************************************************************//** 2 | ; * @file startup_ARMCM3.s 3 | ; * @brief CMSIS Core Device Startup File for 4 | ; * ARMCM3 Device 5 | ; * @version V1.0.1 6 | ; * @date 23. July 2019 7 | ; ******************************************************************************/ 8 | ;/* 9 | ; * Copyright (c) 2009-2019 Arm Limited. All rights reserved. 10 | ; * 11 | ; * SPDX-License-Identifier: Apache-2.0 12 | ; * 13 | ; * Licensed under the Apache License, Version 2.0 (the License); you may 14 | ; * not use this file except in compliance with the License. 15 | ; * You may obtain a copy of the License at 16 | ; * 17 | ; * www.apache.org/licenses/LICENSE-2.0 18 | ; * 19 | ; * Unless required by applicable law or agreed to in writing, software 20 | ; * distributed under the License is distributed on an AS IS BASIS, WITHOUT 21 | ; * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 22 | ; * See the License for the specific language governing permissions and 23 | ; * limitations under the License. 24 | ; */ 25 | 26 | ;//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------ 27 | 28 | 29 | ; Stack Configuration 30 | ; Stack Size (in Bytes) <0x0-0xFFFFFFFF:8> 31 | ; 32 | 33 | Stack_Size EQU 0x00000400 34 | 35 | AREA STACK, NOINIT, READWRITE, ALIGN=3 36 | __stack_limit 37 | Stack_Mem SPACE Stack_Size 38 | __initial_sp 39 | 40 | 41 | ; Heap Configuration 42 | ; Heap Size (in Bytes) <0x0-0xFFFFFFFF:8> 43 | ; 44 | 45 | Heap_Size EQU 0x00000C00 46 | 47 | IF Heap_Size != 0 ; Heap is provided 48 | AREA HEAP, NOINIT, READWRITE, ALIGN=3 49 | __heap_base 50 | Heap_Mem SPACE Heap_Size 51 | __heap_limit 52 | ENDIF 53 | 54 | 55 | PRESERVE8 56 | THUMB 57 | 58 | 59 | ; Vector Table Mapped to Address 0 at Reset 60 | 61 | AREA RESET, DATA, READONLY 62 | EXPORT __Vectors 63 | EXPORT __Vectors_End 64 | EXPORT __Vectors_Size 65 | 66 | __Vectors DCD __initial_sp ; Top of Stack 67 | DCD Reset_Handler ; Reset Handler 68 | DCD NMI_Handler ; -14 NMI Handler 69 | DCD HardFault_Handler ; -13 Hard Fault Handler 70 | DCD MemManage_Handler ; -12 MPU Fault Handler 71 | DCD BusFault_Handler ; -11 Bus Fault Handler 72 | DCD UsageFault_Handler ; -10 Usage Fault Handler 73 | DCD 0 ; Reserved 74 | DCD 0 ; Reserved 75 | DCD 0 ; Reserved 76 | DCD 0 ; Reserved 77 | DCD SVC_Handler ; -5 SVC Handler 78 | DCD DebugMon_Handler ; -4 Debug Monitor Handler 79 | DCD 0 ; Reserved 80 | DCD PendSV_Handler ; -2 PendSV Handler 81 | DCD SysTick_Handler ; -1 SysTick Handler 82 | 83 | ; Interrupts 84 | DCD Interrupt0_Handler ; 0 Interrupt 0 85 | DCD Interrupt1_Handler ; 1 Interrupt 1 86 | DCD Interrupt2_Handler ; 2 Interrupt 2 87 | DCD Interrupt3_Handler ; 3 Interrupt 3 88 | DCD Interrupt4_Handler ; 4 Interrupt 4 89 | DCD Interrupt5_Handler ; 5 Interrupt 5 90 | DCD Interrupt6_Handler ; 6 Interrupt 6 91 | DCD Interrupt7_Handler ; 7 Interrupt 7 92 | DCD Interrupt8_Handler ; 8 Interrupt 8 93 | DCD Interrupt9_Handler ; 9 Interrupt 9 94 | 95 | SPACE (214 * 4) ; Interrupts 10 .. 224 are left out 96 | __Vectors_End 97 | __Vectors_Size EQU __Vectors_End - __Vectors 98 | 99 | 100 | AREA |.text|, CODE, READONLY 101 | 102 | ; Reset Handler 103 | 104 | Reset_Handler PROC 105 | EXPORT Reset_Handler [WEAK] 106 | IMPORT SystemInit 107 | IMPORT __main 108 | 109 | LDR R0, =SystemInit 110 | BLX R0 111 | LDR R0, =__main 112 | BX R0 113 | ENDP 114 | 115 | ; The default macro is not used for HardFault_Handler 116 | ; because this results in a poor debug illusion. 117 | HardFault_Handler PROC 118 | EXPORT HardFault_Handler [WEAK] 119 | B . 120 | ENDP 121 | 122 | ; Macro to define default exception/interrupt handlers. 123 | ; Default handler are weak symbols with an endless loop. 124 | ; They can be overwritten by real handlers. 125 | MACRO 126 | Set_Default_Handler $Handler_Name 127 | $Handler_Name PROC 128 | EXPORT $Handler_Name [WEAK] 129 | B . 130 | ENDP 131 | MEND 132 | 133 | 134 | ; Default exception/interrupt handler 135 | 136 | Set_Default_Handler NMI_Handler 137 | Set_Default_Handler MemManage_Handler 138 | Set_Default_Handler BusFault_Handler 139 | Set_Default_Handler UsageFault_Handler 140 | Set_Default_Handler SVC_Handler 141 | Set_Default_Handler DebugMon_Handler 142 | Set_Default_Handler PendSV_Handler 143 | Set_Default_Handler SysTick_Handler 144 | 145 | Set_Default_Handler Interrupt0_Handler 146 | Set_Default_Handler Interrupt1_Handler 147 | Set_Default_Handler Interrupt2_Handler 148 | Set_Default_Handler Interrupt3_Handler 149 | Set_Default_Handler Interrupt4_Handler 150 | Set_Default_Handler Interrupt5_Handler 151 | Set_Default_Handler Interrupt6_Handler 152 | Set_Default_Handler Interrupt7_Handler 153 | Set_Default_Handler Interrupt8_Handler 154 | Set_Default_Handler Interrupt9_Handler 155 | 156 | ALIGN 157 | 158 | 159 | ; User setup Stack & Heap 160 | 161 | IF :LNOT::DEF:__MICROLIB 162 | IMPORT __use_two_region_memory 163 | ENDIF 164 | 165 | EXPORT __stack_limit 166 | EXPORT __initial_sp 167 | IF Heap_Size != 0 ; Heap is provided 168 | EXPORT __heap_base 169 | EXPORT __heap_limit 170 | ENDIF 171 | 172 | END 173 | -------------------------------------------------------------------------------- /Project/RTE/Device/ARMCM3/system_ARMCM3.c: -------------------------------------------------------------------------------- 1 | /**************************************************************************//** 2 | * @file system_ARMCM3.c 3 | * @brief CMSIS Device System Source File for 4 | * ARMCM3 Device Series 5 | * @version V5.00 6 | * @date 10. January 2018 7 | ******************************************************************************/ 8 | /* 9 | * Copyright (c) 2009-2018 Arm Limited. All rights reserved. 10 | * 11 | * SPDX-License-Identifier: Apache-2.0 12 | * 13 | * Licensed under the Apache License, Version 2.0 (the License); you may 14 | * not use this file except in compliance with the License. 15 | * You may obtain a copy of the License at 16 | * 17 | * www.apache.org/licenses/LICENSE-2.0 18 | * 19 | * Unless required by applicable law or agreed to in writing, software 20 | * distributed under the License is distributed on an AS IS BASIS, WITHOUT 21 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 22 | * See the License for the specific language governing permissions and 23 | * limitations under the License. 24 | */ 25 | 26 | #include "ARMCM3.h" 27 | 28 | /*---------------------------------------------------------------------------- 29 | Define clocks 30 | *----------------------------------------------------------------------------*/ 31 | #define XTAL ( 5000000UL) /* Oscillator frequency */ 32 | 33 | #define SYSTEM_CLOCK (5U * XTAL) 34 | 35 | 36 | /*---------------------------------------------------------------------------- 37 | Externals 38 | *----------------------------------------------------------------------------*/ 39 | #if defined (__VTOR_PRESENT) && (__VTOR_PRESENT == 1U) 40 | extern uint32_t __Vectors; 41 | #endif 42 | 43 | /*---------------------------------------------------------------------------- 44 | System Core Clock Variable 45 | *----------------------------------------------------------------------------*/ 46 | uint32_t SystemCoreClock = SYSTEM_CLOCK; 47 | 48 | 49 | /*---------------------------------------------------------------------------- 50 | System Core Clock update function 51 | *----------------------------------------------------------------------------*/ 52 | void SystemCoreClockUpdate (void) 53 | { 54 | SystemCoreClock = SYSTEM_CLOCK; 55 | } 56 | 57 | /*---------------------------------------------------------------------------- 58 | System initialization function 59 | *----------------------------------------------------------------------------*/ 60 | void SystemInit (void) 61 | { 62 | 63 | #if defined (__VTOR_PRESENT) && (__VTOR_PRESENT == 1U) 64 | SCB->VTOR = (uint32_t) &__Vectors; 65 | #endif 66 | 67 | SystemCoreClock = SYSTEM_CLOCK; 68 | } 69 | -------------------------------------------------------------------------------- /Project/RTE/Device/ARMCM3/system_ARMCM3.c@1.0.1: -------------------------------------------------------------------------------- 1 | /**************************************************************************//** 2 | * @file system_ARMCM3.c 3 | * @brief CMSIS Device System Source File for 4 | * ARMCM3 Device 5 | * @version V1.0.1 6 | * @date 15. November 2019 7 | ******************************************************************************/ 8 | /* 9 | * Copyright (c) 2009-2019 Arm Limited. All rights reserved. 10 | * 11 | * SPDX-License-Identifier: Apache-2.0 12 | * 13 | * Licensed under the Apache License, Version 2.0 (the License); you may 14 | * not use this file except in compliance with the License. 15 | * You may obtain a copy of the License at 16 | * 17 | * www.apache.org/licenses/LICENSE-2.0 18 | * 19 | * Unless required by applicable law or agreed to in writing, software 20 | * distributed under the License is distributed on an AS IS BASIS, WITHOUT 21 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 22 | * See the License for the specific language governing permissions and 23 | * limitations under the License. 24 | */ 25 | 26 | #include "ARMCM3.h" 27 | 28 | /*---------------------------------------------------------------------------- 29 | Define clocks 30 | *----------------------------------------------------------------------------*/ 31 | #define XTAL (50000000UL) /* Oscillator frequency */ 32 | 33 | #define SYSTEM_CLOCK (XTAL / 2U) 34 | 35 | /*---------------------------------------------------------------------------- 36 | Exception / Interrupt Vector table 37 | *----------------------------------------------------------------------------*/ 38 | extern const VECTOR_TABLE_Type __VECTOR_TABLE[240]; 39 | 40 | /*---------------------------------------------------------------------------- 41 | System Core Clock Variable 42 | *----------------------------------------------------------------------------*/ 43 | uint32_t SystemCoreClock = SYSTEM_CLOCK; /* System Core Clock Frequency */ 44 | 45 | 46 | /*---------------------------------------------------------------------------- 47 | System Core Clock update function 48 | *----------------------------------------------------------------------------*/ 49 | void SystemCoreClockUpdate (void) 50 | { 51 | SystemCoreClock = SYSTEM_CLOCK; 52 | } 53 | 54 | /*---------------------------------------------------------------------------- 55 | System initialization function 56 | *----------------------------------------------------------------------------*/ 57 | void SystemInit (void) 58 | { 59 | 60 | #if defined (__VTOR_PRESENT) && (__VTOR_PRESENT == 1U) 61 | SCB->VTOR = (uint32_t) &(__VECTOR_TABLE[0]); 62 | #endif 63 | 64 | SystemCoreClock = SYSTEM_CLOCK; 65 | } 66 | -------------------------------------------------------------------------------- /Project/RTE/_Target_1/RTE_Components.h: -------------------------------------------------------------------------------- 1 | 2 | /* 3 | * Auto generated Run-Time-Environment Configuration File 4 | * *** Do not modify ! *** 5 | * 6 | * Project: 'Fire_FreeRTOS' 7 | * Target: 'Target 1' 8 | */ 9 | 10 | #ifndef RTE_COMPONENTS_H 11 | #define RTE_COMPONENTS_H 12 | 13 | 14 | /* 15 | * Define the Device Header File: 16 | */ 17 | #define CMSIS_device_header "ARMCM3.h" 18 | 19 | 20 | 21 | #endif /* RTE_COMPONENTS_H */ 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ## Learn RTOS 2 | 3 | ### 前言 4 | 5 | 如何真正掌握 RTOS？自己动手写个RTOS不就行了。 6 | 7 | 探索吧！Just for Fun. 8 | 9 | ### 第一阶段目标 10 | 11 | 对标FreeRTOS源码，参考野火的《FreeRTOS 内核实现与应用开发实战》. 12 | 13 | 写一个可以跑起来的Demo，模拟FreeRTOS。 14 | 15 | #### [1. list.c 带头双向循环链表](docs/1_list.c_带头双向循环链表.md) 16 | 17 | #### [2. task.c 任务的定义与任务切换的实现](docs/task_创建任务与任务切换的实现.md) 18 | 19 | #### [3. 临界段的保护](docs/临界保护.md) 20 | 21 | #### [4. 空闲任务与阻塞延时的实现](docs/4_空闲任务与阻塞延时的实现.md) 22 | 23 | #### [5. 支持多优先级](docs/5_支持多优先级.md) 24 | 25 | #### [6. 任务延时列表的实现](docs/6_任务延时列表的实现.md) 26 | 27 | #### [7.支持时间片](docs/7_支持时间片.md) 28 | 29 | ### 第一阶段小结 30 | 31 | 首先，整个流程是可以走通的，目的在于演化FreeRTOS的内核实现，从而能深入理解FreeRTOS的运行原理，这是其先进的地方。 32 | 33 | 但在实际操作过程中，无论是书还是视频的都存在一些缺陷，不仅如此，其学习曲线极度陡峭，要有一定的基础，对CM3 内核及厂家芯片要有一些基本的理解，在学习平滑度方面，课程处理得不太好。 34 | 35 | 这两点就已经劝退了很多人，但人之毒药我之醍醐，我就是想要深入学习RTOS，Cortex-M3内核也是经典。 36 | 37 | 全程扎实地跟下来，有一种贯通之感。 38 | 39 | 中间的重要知识点及难点，可以用Keil调试，一步步去观察，观察程序动态地执行，有利于理解其原理。 40 | 41 | 相比一些其他软件，其实Keil的编辑功能不强但弱，可它是ARM官方软件，官方自然最懂自己的内核，要用的就是Keil的调试，要善用调试。特别是在一些软硬件结合的地方，（往往会涉及汇编）有很多精妙的设计，习来如饮醇酒。 42 | 43 | **Just for Fun.** 44 | 45 | 今后若机缘和合，可以继续... 46 | 47 | **完** 48 | 49 | -- 50 | -------------------------------------------------------------------------------- /docs/1_list.c_带头双向循环链表.md: -------------------------------------------------------------------------------- 1 | #### 1. list.c 带头双向循环链表 2 | 3 | 链表是通过节点把离散的数据链接成一个表，通过对节点的插入和删除操作从而实现 4 | 对数据的存取。 5 | 6 | FreeRTOS 中与链表相关的操作均在 list.h和 list.c 这两个文件中实现。 7 | 8 | 学习方法： 9 | 10 | 1. 可以先从带头双向循环链表数据结去理解，相对而言比较容易理解，如果对数据结构与指针不熟悉，那要先补课； 11 | 12 | 2. 带头双向循环链表数据结构的理解要结合对链表的操作一起，两者其实是一体的，为什么是这种结构，只有对这个链表的操作，才能真正理解； 13 | 14 | 3. 善用Keil的模拟调试，可以一步步跟进观察数据结构中重要变量的数据的变化，验证理解。 15 | 16 | 数据结构是前人反复实践之后，高度精炼，高度抽象的成果，理解的过程如同逆向破解，在不知道其演化过程的情况下，要能善用工具，通过观察变量在数据结构中的变化来理解其原理，这种方法对于所有数据结构都通用。 17 | 18 | ---- 19 | 20 | 附上我写的一篇关于带头双向循环链表的博客 [数据结构-带头双向循环链表](https://juejin.cn/post/7111508196136583175) 21 | 22 | -- 23 | -------------------------------------------------------------------------------- /docs/4_空闲任务与阻塞延时的实现.md: -------------------------------------------------------------------------------- 1 | **空闲任务与阻塞延时的实现** 2 | 3 | 任务体内的延时使用的是软件延时，即还是让 CPU空等来达到延时的效果。使用 RTOS 的很大优势就是榨干 CPU 的性能，永远不能让它闲着，任务如果需要延时也就不能再让 CPU 空等来实现延时的效果。RTOS 中的延时叫阻塞延时，即任务需要延时的时候，任务会放弃 CPU的使用权，CPU可以去干其它的事情，当任务延时时间到，重新获取 CPU使用权，任务继续运行，这样就充分地利用了 CPU的资源，而不是干等着。 4 | 当任务需要延时，进入阻塞状态，那 CPU又去干什么事情了？如果没有其它任务可以运行，RTOS 都会为 CPU 创建一个空闲任务，这个时候 CPU 就运行空闲任务。在FreeRTOS中，空闲任务是系统在【启动调度器】的时候创建的优先级最低的任务，空闲任务主体主要是做一些系统内存的清理工作。但是为了简单起见，我们本章实现的空闲任务只是对一个全局变量进行计数。鉴于空闲任务的这种特性，在实际应用中，当系统进入空闲任务的时候，可在空闲任务中让单片机进入休眠或者低功耗等操作。 5 | 6 | 4.1 实现空闲任务 7 | 8 | TCB_t IdleTaskTCB; 9 | 10 | 4.2 实现阻塞延时 11 | 12 | 4.2.1 vTaskDelay ()函数 13 | 14 | 阻塞延时的阻塞是指任务调用该延时函数后，任务会被剥离 CPU 使用权，然后进入阻塞状态，直到延时结束，任务重新获取 CPU 使用权才可以继续运行。在任务阻塞的这段时间，CPU可以去执行其它的任务，如果其它的任务也在延时状态，那么 CPU就将运行空闲任务。 15 | 16 | 4.2.2 vTaskSwitchContext()函数 17 | 18 | 调用 tashYIELD()会产生PendSV中断，在PendSV中断服务函数中会调用上下文切换函数 vTaskSwitchContext()，该函数的作用是寻找最高优先级的就绪任务，然后更新 pxCurrentTCB。 19 | 20 | 4.3 SysTick中断服务函数 21 | 22 | 在任务上下文切换函数 vTaskSwitchContext ()中，会判断每个任务的任务控制块中的延时成员 xTicksToDelay的值是否为 0，如果为 0就要将对应的任务就绪，如果不为 0就继续延时。如果一个任务要延时，一开始 xTicksToDelay 肯定不为 0，当 xTicksToDelay 变为0 的时候表示延时结束，那么 xTicksToDelay 是以什么周期在递减？在哪里递减？在FreeRTOS 中，这个周期由 SysTick 中断提供，操作系统里面的最小的时间单位就是SysTick 的中断周期，我们称之为一个 tick，SysTick 中断服务函数在 port.c 中实现。 23 | 24 | 4.3.1 xTaskIncrementTick()函数 25 | 26 | 更新系统时基. 27 | 28 | 4.4 SysTick初始化函数 29 | 30 | SysTick 的中断服务函数要想被顺利执行，则 SysTick 必须先初始化。     31 | 32 |     - vPortSetupTimerInterrupt()函数. 33 | 34 | SysTick 初 始 化 函 数 vPortSetupTimerInterrupt() ， 在xPortStartScheduler()中被调用. 35 | 36 | - 系统时钟的大小，因为目前是软件仿真，需要配置成与 37 | system_ARMCM3.c文件中的 SYSTEM_CLOCK的一样，即等于 25M。如果有具体的硬件，则配置成与硬件的系统时钟一样。 38 | 39 | - SysTick 每秒中断多少次，目前配置为 100，即每 10ms中断一次。 40 | 41 | 42 | 43 | 44 | 45 | 注意 46 | 47 | 这部分与内核相关的知识比较多，TaskDelay() 与SysTick部分，在多次模拟运行之后，再结合内核部分的知识，相互印证，这里是一个重点。 48 | -------------------------------------------------------------------------------- /docs/5_支持多优先级.md: -------------------------------------------------------------------------------- 1 | 现在开始，任务中我们开始加入优先级的功能。在 FreeRTOS 中，数字优先级越小，逻辑优先级也越小，这与隔壁的 RT-Thread和 μC/OS 刚好相反。 2 | 3 | 就绪列表 pxReadyTasksLists[ configMAX_PRIORITIES ]是一个数组，数组里面存的是 4 | 就绪任务的 TCB（准确来说是 TCB 里面的 xStateListItem 节点），数组的下标对应任务的优先级，优先级越低对应的数组下标越小。空闲任务的优先级最低，对应的是下标为 0 的链表。 5 | 6 | 任务在创建的时候，会根据任务的优先级将任务插入到就绪列表不同的位置。相同优 7 | 先级的任务插入到就绪列表里面的同一条链表中，这就是我们下一章要讲解的支持时间片。 8 | pxCurrenTCB是一个全局的 TCB 指针，用于指向优先级最高的就绪任务的 TCB，即当 9 | 前正在运行的 TCB。那么我们要想让任务支持优先级，即只要解决在任务切换 10 | （taskYIELD）的时候，让 pxCurrenTCB 指向最高优先级的就绪任务的 TCB 就可以，pxCurrenTCB 在任务切换的时候指向最高优先级的就绪任务的 TCB 即可，那问题的关键就是：如何找到最高优先级的就绪任务的 TCB。 11 | 12 | FreeRTOS 提供了两套方法，一套是通用的，一套是根据特定的处理器优化过的，接下来我们重点讲解下这两个方法。 13 | 14 | 优化方法，用了 Cortex-M 内核的一个计算前导零的指令CLZ。 15 | 16 | 所谓前导零就是计算一个变量（Cortex-M 内核单片机的变量为 32位）从高位开始第 17 | 一次出现 1 的位的前面的零的个数。 18 | 19 | 不必再使用通用的循环查找方式。 20 | -------------------------------------------------------------------------------- /docs/6_任务延时列表的实现.md: -------------------------------------------------------------------------------- 1 | 在本章之前，为了实现任务的阻塞延时，在任务控制块中内置了一个延时变xTicksToDelay。每当任务需要延时的时候，就初始化 xTicksToDelay 需要延时的时间，然后将任务挂起，这里的挂起只是将任务在优先级位图表 uxTopReadyPriority 中对应的位清零，并不会将任务从就绪列表中删除。当每次时基中断（SysTick 中断）来临时，就扫描就绪列表中的每个任务的 xTicksToDelay，如果 xTicksToDelay 大于 0 则递减一次，然后判断xTicksToDelay 是否为 0，如果为 0 则表示延时时间到，将该任务就绪（即将任务在优先级位图表 uxTopReadyPriority 中对应的位置位），然后进行任务切换。 2 | 3 | 这种延时的缺点是，在每个时基中断中需要对所有任务都扫描一遍，费时，优点是容易理解。之所以先这样讲解是为了慢慢地过度到 FreeRTOS 任务延时列表的讲解。 4 | 5 | **任务延时列表的工作原理** 6 | 7 | 在 FreeRTOS 中，有一个任务延时列表（实际上有两个，为了方便讲解原理，我们假装合并为一个，其实两个的作用是一样的），当任务需要延时的时候，则先将任务挂起，即先将任务从就绪列表删除，然后插入到任务延时列表，同时更新下一个任务的解锁时刻变量：xNextTaskUnblockTime 的值。 8 | 9 | xNextTaskUnblockTime 是一个在 task.c 中定义的静态变量，用于表示下一个任务的解锁时刻。xNextTaskUnblockTime 的值等于系统时基计数器的值 xTickCount 加上任务需要延时值 xTicksToDelay。当系统时基计数器 xTickCount 的值与 xNextTaskUnblockTime 相时，就表示有任务延时到期了，需要将该任务就绪。 10 | 11 | --- 12 | 13 | taskRESET_READY_PRIORITY()函数 14 | 15 | 在没有添加任务延时列表之前，与任务相关的列表只有一个，就是就绪列表，无论任务在延时还是就绪都只能通过扫描就绪列表来找到任务的 TCB，从而实现系统调度。所以在上一章“支持多优先级”中，实现 taskRESET_READY_PRIORITY()函数的时候，不用先判断当前优先级下就绪列表中的链表的节点是否为 0，而是直接把任务在优先级位图表uxTopReadyPriority 中对应的位清零。因为当前优先级下就绪列表中的链表的节点不可能为 16 | 0，目前我们还没有添加其它列表来存放任务的 TCB，只有一个就绪列表。 17 | 18 | 但是从本章开始，我们额外添加了延时列表，当任务要延时的时候，将任务从就绪列表移除，然后添加到延时列表，同时将任务在优先级位图表 uxTopReadyPriority 中对应的位清除。在清除任务在优先级位图表 uxTopReadyPriority 中对应的位的时候，与上一章不同的是需要判断就绪列表 pxReadyTasksLists[]在当前优先级下对应的链表的节点是否为 0，只有当该链表下没有任务时才真正地将任务在优先级位图表 uxTopReadyPriority 中对应的位清零。 19 | 20 | --- 21 | 22 | 注意： 23 | 24 | **这一部分的内容有点复杂，需要好好调式，观察程序运行，观察任务的状态切换，体会这种方法的精妙，高效。** 25 | -------------------------------------------------------------------------------- /docs/7_支持时间片.md: -------------------------------------------------------------------------------- 1 | FreeRTOS 与隔壁的 RT-Thread 和 μC/OS 一样，都支持时间片的功能。所谓时间片就是同一个优先级下可以有多个任务，每个任务轮流地享有相同的 CPU 时间，享有 CPU 的 2 | 时间我们叫时间片。在 RTOS 中，最小的时间单位为一个 tick，即 SysTick 的中断周期， 3 | RT-Thread 和 μC/OS可以指定时间片的大小为多个 tick，但是 FreeRTOS不一样，时间片只能是一个 tick。与其说 FreeRTOS支持时间片，倒不如说它的时间片就是正常的任务调度。 4 | 5 | 系统在任务切换的时候总会从就绪列表中寻找优先级最高的任务来执行，寻找优先级最高的任务这个功能由 taskSELECT_HIGHEST_PRIORITY_TASK()函数来实现。 6 | 7 | 即 当xTaskIncrementTick()函数返回为真时才进行任务切换。 8 | 9 | 定义一个局部变量xSwitchRequired，用于存储xTaskIncrementTick()函数的返回值，当返回值是 pdTRUE 时，需要执行一次任务切换，默认初始化为 pdFALSE。 10 | 11 | configUSE_PREEMPTION 是在 FreeRTOSConfig.h 的一个宏，默认为 1，表示有任务就绪且就绪任务的优先级比当前优先级高时，需要执行一次任务切换， 12 | 即将 xSwitchRequired的值置为 pdTRUE。 13 | 14 | 在 xTaskIncrementTick()函数还没有修改成带返回值的时候，我们是在执行完 xTaskIncrementTick()函数的时候，不管是否有任务就绪，不管就绪的任务的优先级是否比当前任务优先级高都执行一次任务切换。如果就绪任务的优先级比当前优先级高，那么执行一次任务切换与加了代码实现的功能是一样的。 15 | 16 | 如果没有任务就绪呢？就不需要执行任务切换，这样与之前的实现方法相比就省了一次任务切换的时间。虽然说没有更高优先级的任务就绪，执行任务切换的时候还是会运行原来的任务，但这是以多花一次任务切换的时间为代价的。 17 | 18 | 这部分与时间片功能相关。当 configUSE_PREEMPTION 与configUSE_TIME_SLICING 都为真，且当前优先级下不止一个任务时就执行一次任务切换，即将 xSwitchRequired 置为 pdTRUE 即可。 19 | 20 | 在 xTaskIncrementTick()函数还没有修改成带返回值之前，这部分代码不需要也是可以实现时间片功能的，即只要在执行 完xTaskIncrementTick()函数后执行一次任务切换即可。 21 | 22 | configUSE_PREEMPTION 在FreeRTOSConfig.h 中默认定义为 1，configUSE_TIME_SLICING 如果没有定义，则会默认在 FreeRTOS.h中定义为 1。 23 | 其实 FreeRTOS 的这种时间片功能不能说是真正意义的时间片，因为它不能随意的设置时间为多少个 tick，而是默认一个 tick，然后默认在每个 tick 中断周期中进行任务切换而已。 24 | -------------------------------------------------------------------------------- /docs/task_创建任务与任务切换的实现.md: -------------------------------------------------------------------------------- 1 | **task.c 任务的定义与任务切换的实现** 2 | 3 | 这个部分我们的**目标**要实现两个变量按照一定的频率轮流的翻转，每个变量对应一个任务。 4 | 5 | 什么是任务？ 6 | 7 | 在多任务系统中，我们根据功能的不同，把整个系统分割成一个个独立的且无法返回的函数，这个函数我们称为任务。 8 | 9 | ##### 2.1 创建任务 10 | 11 | 每个任务都是独立的，互不干扰的，所以要为每个任务都分配独立的栈空间，这个栈空间通常是一个预先定义好的全局数组，也可以是动态分配的一段内存空间，但它们都存在于 RAM 中。 12 | 13 | 任务的执行是由系统调度的。系统为了顺利的调度任务，为每个任务都额外定义了一个任务控制块，这个任务控制块就相当于任务的身份证，里面存有任务的所有信息，比如任务的栈指针，任务名称，任务的形参等。有了这个任务控制块之后，以后系统对任务的全部操作都可以通过这个任务控制块来实现。 14 | 15 | 任务的栈，任务的函数实体，任务的控制块最终需要联系起来才能由系统进行统一调度。那么这个联系的工作就由任务创建函数 xTaskCreateStatic()来实现，该函数在 task.c定义。 16 | 17 | ##### 2.2 实现就绪列表 18 | 19 | 任务创建好之后，我们需要把任务添加到就绪列表里面，表示任务已经就绪，系统随时可以调度。 20 | 21 | 就绪列表实际上就是一个 List_t 类型的数组，数组的大小由决定最 大 任 务 优 先 级 的 宏 configMAX_PRIORITIES 决 定 ， configMAX_PRIORITIES 在FreeRTOSConfig.h 中默认定义为 5，最大支持 256 个优先级。数组的下标对应了任务的优先级，同一优先级的任务统一插入到就绪列表的同一条链表中。 22 | 23 | 任务控制块里面有一个 xStateListItem 成员，数据类型为 ListItem_t，我们将任务插入到就绪列表里面，就是通过将任务控制块的 xStateListItem 这个节点插入到就绪列表中来实现的。如果把就绪列表比作是晾衣架，任务是衣服，那 xStateListItem 就是晾衣架上面的钩 24 | 子，每个任务都自带晾衣架钩子，就是为了把自己挂在各种不同的链表中。 25 | 26 | ##### 2.3 实现调度器 27 | 28 | 调度器是操作系统的核心，其主要功能就是实现任务的切换，即从就绪列表里面找到优先级最高的任务，然后去执行该任务。从代码上来看，调度器无非也就是由几个全局变量和一些可以实现任务切换的函数组成，全部都在 task.c文件中实现。 29 | 30 | ###### 2.3.1 启动调度器 31 | 32 | 调度器的启动由 vTaskStartScheduler()函数来完成。 33 | 34 | 调用函数 xPortStartScheduler()启动调度器。 35 | 36 | 配置 PendSV 和 SysTick 的中断优先级为最低。 37 | 38 | SysTick 和PendSV 都会涉及到系统调度，系统调度的优先级要低于系统的其它硬件中断优先级，即优先响应系统中的外部硬件中断，所以 SysTick 和 PendSV的中断优先级配置为最低。 39 | 40 | 调用函数 prvStartFirstTask()启动第一个任务，启动成功后，则不再返回。 41 | 42 | prvStartFirstTask()函数用于开始第一个任务，主要做了两个动作，一个是更新 MSP 的值，二是产生 SVC 系统调用，然后去到 SVC 的中断服务函数里面真正切换到第一个任务。 43 | 44 | vPortSVCHandler()函数 45 | 46 | SVC 中断要想被成功响应，其函数名必须与向量表注册的名称一致，在启动文件的向量表中，SVC的中断服务函数注册的名称是 SVC_Handler，所以 SVC 中断服务函数的名称我们应该写成 SVC_Handler，但是在 FreeRTOS 中，官方版本写的是 vPortSVCHandler()。 47 | 48 | vPortSVCHandler()函数开始真正启动第一个任务，不再返回 49 | 50 | 当从 SVC 中断服务退出前，通过向 r14 寄存器最后 4 位按位或上0x0D，使得硬件在退出时使用进程堆栈指针 PSP 完成出栈操作并返回后进入任务模式、返回 Thumb 状态。在 SVC 中断服务里面，使用的是 MSP 堆栈指针，是处在ARM 状态。 51 | 52 | ###### 2.3.2 任务切换 53 | 54 | 任务切换就是在就绪列表中寻找优先级最高的就绪任务，然后去执行该任务。但是目前我们还不支持优先级，仅实现两个任务轮流切换，任务切换函数 taskYIELD()。 55 | 56 | portYIELD 的实现很简单，实际就是将 PendSV 的悬起位置 1，当没有其它中断运行的时候响应 PendSV中断，去执行我们写好的 PendSV中断服务函数，在里面实现任务切换。 57 | 58 | xPortPendSVHandler()函数，**PendSV中断服务函数是真正实现任务切换的地方**。 59 | 60 | vTaskSwitchContext()函数 ，目前我们还不支持优先级，则手动切换，不是任务 1 就是任务 2。 61 | 62 | --- 63 | 64 | ##### - 注意 65 | 66 | 任务调度涉及CM内核与硬件联系紧密，不仅要有内核的知识，还要懂汇编指令，这里是一个难点。 67 | 68 | 汇编语言的颗粒度很细，从语句块上理解整体的逻辑与功能，不要陷入细节而被困住。 69 | 70 | 1. task 与 链表的结合，这一部分理解是重点； 71 | 72 | 2. TCB任务控制模块的数据结构理解也是一个； 73 | -------------------------------------------------------------------------------- /docs/临界保护.md: -------------------------------------------------------------------------------- 1 | **临界段的保护** 2 | 3 |  临界段用一句话概括就是一段在执行的时候不能被中断的代码段。在 FreeRTOS 里面，这个临界段最常出现的就是对全局变量的操作，全局变量就好像是一个枪把子，谁都可以对他开枪，但是我开枪的时候，你就不能开枪，否则就不知道是谁命中了靶子。可能有人会说我可以在子弹上面做个标记，我说你能不能不要瞎扯淡。 4 | 5 | 那么什么情况下临界段会被打断？一个是系统调度，还有一个就是外部中断。在FreeRTOS，系统调度，最终也是产生 PendSV中断，在 PendSV Handler里面实现任务的切换，所以还是可以归结为中断。既然这样，FreeRTOS对临界段的保护最终还是回到对中断的开和关的控制。 6 | 7 | 在 FreeRTOS 中，对临界段的保护出现在两种场合，一种是在中断场合一种是在非中断场合。 8 | -------------------------------------------------------------------------------- /freertos/include/FreeRTOS.h: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/freertos/include/FreeRTOS.h -------------------------------------------------------------------------------- /freertos/include/FreeRTOSConfig.h: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/freertos/include/FreeRTOSConfig.h -------------------------------------------------------------------------------- /freertos/include/list.h: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/freertos/include/list.h -------------------------------------------------------------------------------- /freertos/include/portable.h: -------------------------------------------------------------------------------- 1 | #ifndef PORTABLE_H 2 | #define PORTABLE_H 3 | 4 | #include "portmacro.h" 5 | #include "projdefs.h" 6 | 7 | StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters ); 8 | 9 | BaseType_t xPortStartScheduler( void ); 10 | 11 | #endif /* PORTABLE_H */ 12 | -------------------------------------------------------------------------------- /freertos/include/portmacro.h: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/freertos/include/portmacro.h -------------------------------------------------------------------------------- /freertos/include/projdefs.h: -------------------------------------------------------------------------------- 1 | #ifndef PROJDEFS_H 2 | #define PROJDEFS_H 3 | 4 | typedef void (*TaskFunction_t)( void * ); 5 | 6 | #define pdFALSE ( ( BaseType_t ) 0 ) 7 | #define pdTRUE ( ( BaseType_t ) 1 ) 8 | 9 | #define pdPASS ( pdTRUE ) 10 | #define pdFAIL ( pdFALSE ) 11 | 12 | 13 | #endif /* PROJDEFS_H */ 14 | -------------------------------------------------------------------------------- /freertos/include/task.h: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/freertos/include/task.h -------------------------------------------------------------------------------- /freertos/list.c: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/freertos/list.c -------------------------------------------------------------------------------- /freertos/portable/RVDS/ARM_CM3/port.c: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/freertos/portable/RVDS/ARM_CM3/port.c -------------------------------------------------------------------------------- /freertos/task.c: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/freertos/task.c -------------------------------------------------------------------------------- /keilkilll.bat: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/keilkilll.bat -------------------------------------------------------------------------------- /user/main.c: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sevend/Learn_RTOS/ddc1c874c06620dd3a9416b14d8a81caa7824951/user/main.c --------------------------------------------------------------------------------