Kévin Redon | 93717e4 | 2018-07-08 13:26:15 +0200 | [diff] [blame] | 1 | /* ---------------------------------------------------------------------------- |
| 2 | * ATMEL Microcontroller Software Support |
| 3 | * ---------------------------------------------------------------------------- |
| 4 | * Copyright (c) 2009, Atmel Corporation |
| 5 | * |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions are met: |
| 10 | * |
| 11 | * - Redistributions of source code must retain the above copyright notice, |
| 12 | * this list of conditions and the disclaimer below. |
| 13 | * |
| 14 | * Atmel's name may not be used to endorse or promote products derived from |
| 15 | * this software without specific prior written permission. |
| 16 | * |
| 17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| 20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
| 23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| 26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | * ---------------------------------------------------------------------------- |
| 28 | */ |
| 29 | |
| 30 | /** \addtogroup flashd_module Flash Memory Interface |
| 31 | * The flash driver manages the programming, erasing, locking and unlocking sequences |
| 32 | * with dedicated commands. |
| 33 | * |
| 34 | * To implement flash programing operation, the user has to follow these few steps : |
| 35 | * <ul> |
| 36 | * <li>Configue flash wait states to initializes the flash. </li> |
| 37 | * <li>Checks whether a region to be programmed is locked. </li> |
| 38 | * <li>Unlocks the user region to be programmed if the region have locked before.</li> |
| 39 | * <li>Erases the user page before program (optional).</li> |
| 40 | * <li>Writes the user page from the page buffer.</li> |
| 41 | * <li>Locks the region of programmed area if any.</li> |
| 42 | * </ul> |
| 43 | * |
| 44 | * Writing 8-bit and 16-bit data is not allowed and may lead to unpredictable data corruption. |
| 45 | * A check of this validity and padding for 32-bit alignment should be done in write algorithm. |
| 46 | |
| 47 | * Lock/unlock range associated with the user address range is automatically translated. |
| 48 | * |
| 49 | * This security bit can be enabled through the command "Set General Purpose NVM Bit 0". |
| 50 | * |
| 51 | * A 128-bit factory programmed unique ID could be read to serve several purposes. |
| 52 | * |
| 53 | * The driver accesses the flash memory by calling the lowlevel module provided in \ref efc_module. |
| 54 | * For more accurate information, please look at the EEFC section of the Datasheet. |
| 55 | * |
| 56 | * Related files :\n |
| 57 | * \ref flashd.c\n |
| 58 | * \ref flashd.h.\n |
| 59 | * \ref efc.c\n |
| 60 | * \ref efc.h.\n |
| 61 | */ |
| 62 | /*@{*/ |
| 63 | /*@}*/ |
| 64 | |
| 65 | |
| 66 | /** |
| 67 | * \file |
| 68 | * |
| 69 | * The flash driver provides the unified interface for flash program operations. |
| 70 | * |
| 71 | */ |
| 72 | |
| 73 | /*---------------------------------------------------------------------------- |
| 74 | * Headers |
| 75 | *----------------------------------------------------------------------------*/ |
| 76 | #include "chip.h" |
| 77 | #include "flashd.h" |
| 78 | #include "efc.h" |
| 79 | |
| 80 | #include <string.h> |
| 81 | #include <assert.h> |
| 82 | |
| 83 | /*---------------------------------------------------------------------------- |
| 84 | * Local variables |
| 85 | *----------------------------------------------------------------------------*/ |
| 86 | |
| 87 | //static NO_INIT uint8_t _aucPageBuffer[IFLASH_PAGE_SIZE] ; |
| 88 | static NO_INIT uint32_t _adwPageBuffer[IFLASH_PAGE_SIZE/4] ; |
| 89 | static uint8_t* _aucPageBuffer = (uint8_t*)_adwPageBuffer; |
| 90 | static NO_INIT uint32_t _dwUseIAP ; |
| 91 | |
| 92 | /*---------------------------------------------------------------------------- |
| 93 | * Local macros |
| 94 | *----------------------------------------------------------------------------*/ |
| 95 | |
| 96 | #define min( a, b ) (((a) < (b)) ? (a) : (b)) |
| 97 | |
| 98 | /*---------------------------------------------------------------------------- |
| 99 | * Local functions |
| 100 | *----------------------------------------------------------------------------*/ |
| 101 | |
| 102 | |
| 103 | /** |
| 104 | * \brief Computes the lock range associated with the given address range. |
| 105 | * |
| 106 | * \param dwStart Start address of lock range. |
| 107 | * \param dwEnd End address of lock range. |
| 108 | * \param pdwActualStart Actual start address of lock range. |
| 109 | * \param pdwActualEnd Actual end address of lock range. |
| 110 | */ |
| 111 | static void ComputeLockRange( uint32_t dwStart, uint32_t dwEnd, uint32_t *pdwActualStart, uint32_t *pdwActualEnd ) |
| 112 | { |
| 113 | Efc* pStartEfc ; |
| 114 | Efc* pEndEfc ; |
| 115 | uint16_t wStartPage ; |
| 116 | uint16_t wEndPage ; |
| 117 | uint16_t wNumPagesInRegion ; |
| 118 | uint16_t wActualStartPage ; |
| 119 | uint16_t wActualEndPage ; |
| 120 | |
| 121 | // Convert start and end address in page numbers |
| 122 | EFC_TranslateAddress( &pStartEfc, dwStart, &wStartPage, 0 ) ; |
| 123 | EFC_TranslateAddress( &pEndEfc, dwEnd, &wEndPage, 0 ) ; |
| 124 | |
| 125 | // Find out the first page of the first region to lock |
| 126 | wNumPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE ; |
| 127 | wActualStartPage = wStartPage - (wStartPage % wNumPagesInRegion) ; |
| 128 | wActualEndPage = wEndPage ; |
| 129 | |
| 130 | if ( (wEndPage % wNumPagesInRegion) != 0 ) |
| 131 | { |
| 132 | wActualEndPage += wNumPagesInRegion - (wEndPage % wNumPagesInRegion) ; |
| 133 | } |
| 134 | // Store actual page numbers |
| 135 | EFC_ComputeAddress( pStartEfc, wActualStartPage, 0, pdwActualStart ) ; |
| 136 | EFC_ComputeAddress( pEndEfc, wActualEndPage, 0, pdwActualEnd ) ; |
| 137 | TRACE_DEBUG( "Actual lock range is 0x%06X - 0x%06X\n\r", *pdwActualStart, *pdwActualEnd ) ; |
| 138 | } |
| 139 | |
| 140 | |
| 141 | /*---------------------------------------------------------------------------- |
| 142 | * Exported functions |
| 143 | *----------------------------------------------------------------------------*/ |
| 144 | |
| 145 | /** |
| 146 | * \brief Initializes the flash driver. |
| 147 | * |
| 148 | * \param mck Master clock frequency in Hz. |
| 149 | */ |
| 150 | |
| 151 | extern void FLASHD_Initialize( uint32_t dwMCk, uint32_t dwUseIAP ) |
| 152 | { |
| 153 | EFC_DisableFrdyIt( EFC ) ; |
| 154 | #if 1 |
| 155 | /* See Revision A errata 46.1.1.3 */ |
| 156 | EFC_SetWaitState(EFC, 6); |
| 157 | #else |
| 158 | if ( (dwMCk/1000000) >= 64 ) |
| 159 | { |
| 160 | EFC_SetWaitState( EFC, 2 ) ; |
| 161 | } |
| 162 | else |
| 163 | { |
| 164 | if ( (dwMCk/1000000) >= 50 ) |
| 165 | { |
| 166 | EFC_SetWaitState( EFC, 1 ) ; |
| 167 | } |
| 168 | else |
| 169 | { |
| 170 | EFC_SetWaitState( EFC, 0 ) ; |
| 171 | } |
| 172 | } |
| 173 | #endif |
| 174 | _dwUseIAP=dwUseIAP ; |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * \brief Erases the entire flash. |
| 179 | * |
| 180 | * \param address Flash start address. |
| 181 | * \return 0 if successful; otherwise returns an error code. |
| 182 | */ |
| 183 | extern uint32_t FLASHD_Erase( uint32_t dwAddress ) |
| 184 | { |
| 185 | Efc* pEfc ; |
| 186 | uint16_t wPage ; |
| 187 | uint16_t wOffset ; |
| 188 | uint32_t dwError ; |
| 189 | |
| 190 | assert( (dwAddress >=IFLASH_ADDR) || (dwAddress <= (IFLASH_ADDR + IFLASH_SIZE)) ) ; |
| 191 | |
| 192 | // Translate write address |
| 193 | EFC_TranslateAddress( &pEfc, dwAddress, &wPage, &wOffset ) ; |
| 194 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_EA, 0, _dwUseIAP ) ; |
| 195 | |
| 196 | return dwError ; |
| 197 | } |
| 198 | |
| 199 | /** |
| 200 | * \brief Writes a data buffer in the internal flash |
| 201 | * |
| 202 | * \note This function works in polling mode, and thus only returns when the |
| 203 | * data has been effectively written. |
| 204 | * \param address Write address. |
| 205 | * \param pBuffer Data buffer. |
| 206 | * \param size Size of data buffer in bytes. |
| 207 | * \return 0 if successful, otherwise returns an error code. |
| 208 | */ |
| 209 | extern uint32_t FLASHD_Write( uint32_t dwAddress, const void *pvBuffer, uint32_t dwSize ) |
| 210 | { |
| 211 | Efc* pEfc ; |
| 212 | uint16_t page ; |
| 213 | uint16_t offset ; |
| 214 | uint32_t writeSize ; |
| 215 | uint32_t pageAddress ; |
| 216 | uint16_t padding ; |
| 217 | uint32_t dwError ; |
| 218 | uint32_t sizeTmp ; |
| 219 | uint32_t *pAlignedDestination ; |
| 220 | uint32_t *pAlignedSource ; |
| 221 | |
| 222 | assert( pvBuffer ) ; |
| 223 | assert( dwAddress >=IFLASH_ADDR ) ; |
| 224 | assert( (dwAddress + dwSize) <= (IFLASH_ADDR + IFLASH_SIZE) ) ; |
| 225 | |
| 226 | /* Translate write address */ |
| 227 | EFC_TranslateAddress( &pEfc, dwAddress, &page, &offset ) ; |
| 228 | |
| 229 | /* Write all pages */ |
| 230 | while ( dwSize > 0 ) |
| 231 | { |
| 232 | /* Copy data in temporary buffer to avoid alignment problems */ |
| 233 | writeSize = min((uint32_t)IFLASH_PAGE_SIZE - offset, dwSize ) ; |
| 234 | EFC_ComputeAddress(pEfc, page, 0, &pageAddress ) ; |
| 235 | padding = IFLASH_PAGE_SIZE - offset - writeSize ; |
| 236 | |
| 237 | /* Pre-buffer data */ |
| 238 | memcpy( _aucPageBuffer, (void *) pageAddress, offset); |
| 239 | |
| 240 | /* Buffer data */ |
| 241 | memcpy( _aucPageBuffer + offset, pvBuffer, writeSize); |
| 242 | |
| 243 | /* Post-buffer data */ |
| 244 | memcpy( _aucPageBuffer + offset + writeSize, (void *) (pageAddress + offset + writeSize), padding); |
| 245 | |
| 246 | /* Write page |
| 247 | * Writing 8-bit and 16-bit data is not allowed and may lead to unpredictable data corruption |
| 248 | */ |
| 249 | pAlignedDestination = (uint32_t*)pageAddress ; |
| 250 | pAlignedSource = (uint32_t*)_adwPageBuffer ; |
| 251 | sizeTmp = IFLASH_PAGE_SIZE ; |
| 252 | |
| 253 | while ( sizeTmp >= 4 ) |
| 254 | { |
| 255 | *pAlignedDestination++ = *pAlignedSource++; |
| 256 | sizeTmp -= 4; |
| 257 | } |
| 258 | |
| 259 | /* Send writing command */ |
| 260 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_EWP, page, _dwUseIAP ) ; |
| 261 | if ( dwError ) |
| 262 | { |
| 263 | return dwError ; |
| 264 | } |
| 265 | |
| 266 | /* Progression */ |
| 267 | dwAddress += IFLASH_PAGE_SIZE ; |
| 268 | pvBuffer = (void *)((uint32_t) pvBuffer + writeSize) ; |
| 269 | dwSize -= writeSize ; |
| 270 | page++; |
| 271 | offset = 0; |
| 272 | } |
| 273 | |
| 274 | return 0 ; |
| 275 | } |
| 276 | /** |
| 277 | * \brief Locks all the regions in the given address range. The actual lock range is |
| 278 | * reported through two output parameters. |
| 279 | * |
| 280 | * \param start Start address of lock range. |
| 281 | * \param end End address of lock range. |
| 282 | * \param pActualStart Start address of the actual lock range (optional). |
| 283 | * \param pActualEnd End address of the actual lock range (optional). |
| 284 | * \return 0 if successful, otherwise returns an error code. |
| 285 | */ |
| 286 | extern uint32_t FLASHD_Lock( uint32_t start, uint32_t end, uint32_t *pActualStart, uint32_t *pActualEnd ) |
| 287 | { |
| 288 | Efc *pEfc ; |
| 289 | uint32_t actualStart, actualEnd ; |
| 290 | uint16_t startPage, endPage ; |
| 291 | uint32_t dwError ; |
| 292 | uint16_t numPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE; |
| 293 | |
| 294 | /* Compute actual lock range and store it */ |
| 295 | ComputeLockRange( start, end, &actualStart, &actualEnd ) ; |
| 296 | if ( pActualStart != NULL ) |
| 297 | { |
| 298 | *pActualStart = actualStart ; |
| 299 | } |
| 300 | if ( pActualEnd != NULL ) |
| 301 | { |
| 302 | *pActualEnd = actualEnd; |
| 303 | } |
| 304 | |
| 305 | /* Compute page numbers */ |
| 306 | EFC_TranslateAddress( &pEfc, actualStart, &startPage, 0 ) ; |
| 307 | EFC_TranslateAddress( 0, actualEnd, &endPage, 0 ) ; |
| 308 | |
| 309 | /* Lock all pages */ |
| 310 | while ( startPage < endPage ) |
| 311 | { |
| 312 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_SLB, startPage, _dwUseIAP ) ; |
| 313 | if ( dwError ) |
| 314 | { |
| 315 | return dwError ; |
| 316 | } |
| 317 | startPage += numPagesInRegion; |
| 318 | } |
| 319 | |
| 320 | return 0 ; |
| 321 | } |
| 322 | |
| 323 | /** |
| 324 | * \brief Unlocks all the regions in the given address range. The actual unlock range is |
| 325 | * reported through two output parameters. |
| 326 | * \param start Start address of unlock range. |
| 327 | * \param end End address of unlock range. |
| 328 | * \param pActualStart Start address of the actual unlock range (optional). |
| 329 | * \param pActualEnd End address of the actual unlock range (optional). |
| 330 | * \return 0 if successful, otherwise returns an error code. |
| 331 | */ |
| 332 | extern uint32_t FLASHD_Unlock( uint32_t start, uint32_t end, uint32_t *pActualStart, uint32_t *pActualEnd ) |
| 333 | { |
| 334 | Efc* pEfc ; |
| 335 | uint32_t actualStart, actualEnd ; |
| 336 | uint16_t startPage, endPage ; |
| 337 | uint32_t dwError ; |
| 338 | uint16_t numPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE; |
| 339 | |
| 340 | // Compute actual unlock range and store it |
| 341 | ComputeLockRange(start, end, &actualStart, &actualEnd); |
| 342 | if ( pActualStart != NULL ) |
| 343 | { |
| 344 | *pActualStart = actualStart ; |
| 345 | } |
| 346 | if ( pActualEnd != NULL ) |
| 347 | { |
| 348 | *pActualEnd = actualEnd ; |
| 349 | } |
| 350 | |
| 351 | // Compute page numbers |
| 352 | EFC_TranslateAddress( &pEfc, actualStart, &startPage, 0 ) ; |
| 353 | EFC_TranslateAddress( 0, actualEnd, &endPage, 0 ) ; |
| 354 | |
| 355 | // Unlock all pages |
| 356 | while ( startPage < endPage ) |
| 357 | { |
| 358 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_CLB, startPage, _dwUseIAP ) ; |
| 359 | if ( dwError ) |
| 360 | { |
| 361 | return dwError ; |
| 362 | } |
| 363 | startPage += numPagesInRegion ; |
| 364 | } |
| 365 | return 0 ; |
| 366 | } |
| 367 | |
| 368 | /** |
| 369 | * \brief Returns the number of locked regions inside the given address range. |
| 370 | * |
| 371 | * \param start Start address of range |
| 372 | * \param end End address of range. |
| 373 | */ |
| 374 | extern uint32_t FLASHD_IsLocked( uint32_t start, uint32_t end ) |
| 375 | { |
| 376 | Efc *pEfc ; |
| 377 | uint16_t startPage, endPage ; |
| 378 | uint8_t startRegion, endRegion ; |
| 379 | uint32_t numPagesInRegion ; |
| 380 | uint32_t status ; |
| 381 | uint32_t dwError ; |
| 382 | uint32_t numLockedRegions = 0 ; |
| 383 | |
| 384 | assert( end >= start ) ; |
| 385 | assert( (start >=IFLASH_ADDR) && (end <= IFLASH_ADDR + IFLASH_SIZE) ) ; |
| 386 | |
| 387 | // Compute page numbers |
| 388 | EFC_TranslateAddress( &pEfc, start, &startPage, 0 ) ; |
| 389 | EFC_TranslateAddress( 0, end, &endPage, 0 ) ; |
| 390 | |
| 391 | // Compute region numbers |
| 392 | numPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE ; |
| 393 | startRegion = startPage / numPagesInRegion ; |
| 394 | endRegion = endPage / numPagesInRegion ; |
| 395 | if ((endPage % numPagesInRegion) != 0) |
| 396 | { |
| 397 | endRegion++ ; |
| 398 | } |
| 399 | |
| 400 | // Retrieve lock status |
| 401 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_GLB, 0, _dwUseIAP ) ; |
| 402 | assert( !dwError ) ; |
| 403 | status = EFC_GetResult( pEfc ) ; |
| 404 | |
| 405 | // Check status of each involved region |
| 406 | while ( startRegion < endRegion ) |
| 407 | { |
| 408 | if ( (status & (1 << startRegion)) != 0 ) |
| 409 | { |
| 410 | numLockedRegions++ ; |
| 411 | } |
| 412 | startRegion++ ; |
| 413 | } |
| 414 | |
| 415 | return numLockedRegions ; |
| 416 | } |
| 417 | |
| 418 | /** |
| 419 | * \brief Check if the given GPNVM bit is set or not. |
| 420 | * |
| 421 | * \param gpnvm GPNVM bit index. |
| 422 | * \returns 1 if the given GPNVM bit is currently set; otherwise returns 0. |
| 423 | */ |
| 424 | extern uint32_t FLASHD_IsGPNVMSet( uint8_t ucGPNVM ) |
| 425 | { |
| 426 | uint32_t dwError ; |
| 427 | uint32_t dwStatus ; |
| 428 | |
| 429 | assert( ucGPNVM < 2 ) ; |
| 430 | |
| 431 | /* Get GPNVMs status */ |
| 432 | dwError = EFC_PerformCommand( EFC, EFC_FCMD_GFB, 0, _dwUseIAP ) ; |
| 433 | assert( !dwError ) ; |
| 434 | dwStatus = EFC_GetResult( EFC ) ; |
| 435 | |
| 436 | /* Check if GPNVM is set */ |
| 437 | if ( (dwStatus & (1 << ucGPNVM)) != 0 ) |
| 438 | { |
| 439 | return 1 ; |
| 440 | } |
| 441 | else |
| 442 | { |
| 443 | return 0 ; |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | /** |
| 448 | * \brief Sets the selected GPNVM bit. |
| 449 | * |
| 450 | * \param gpnvm GPNVM bit index. |
| 451 | * \returns 0 if successful; otherwise returns an error code. |
| 452 | */ |
| 453 | extern uint32_t FLASHD_SetGPNVM( uint8_t ucGPNVM ) |
| 454 | { |
| 455 | assert( ucGPNVM < 2 ) ; |
| 456 | |
| 457 | if ( !FLASHD_IsGPNVMSet( ucGPNVM ) ) |
| 458 | { |
| 459 | return EFC_PerformCommand( EFC, EFC_FCMD_SFB, ucGPNVM, _dwUseIAP ) ; |
| 460 | } |
| 461 | else |
| 462 | { |
| 463 | return 0 ; |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | /** |
| 468 | * \brief Clears the selected GPNVM bit. |
| 469 | * |
| 470 | * \param gpnvm GPNVM bit index. |
| 471 | * \returns 0 if successful; otherwise returns an error code. |
| 472 | */ |
| 473 | extern uint32_t FLASHD_ClearGPNVM( uint8_t ucGPNVM ) |
| 474 | { |
| 475 | assert( ucGPNVM < 2 ) ; |
| 476 | |
| 477 | if ( FLASHD_IsGPNVMSet( ucGPNVM ) ) |
| 478 | { |
| 479 | return EFC_PerformCommand( EFC, EFC_FCMD_CFB, ucGPNVM, _dwUseIAP ) ; |
| 480 | } |
| 481 | else |
| 482 | { |
| 483 | return 0 ; |
| 484 | } |
| 485 | } |
| 486 | /** |
| 487 | * \brief Read the unique ID. |
| 488 | * |
| 489 | * \param uniqueID pointer on a 4bytes char containing the unique ID value. |
| 490 | * \returns 0 if successful; otherwise returns an error code. |
| 491 | */ |
| 492 | extern uint32_t FLASHD_ReadUniqueID( uint32_t* pdwUniqueID ) |
| 493 | { |
| 494 | uint32_t dwError ; |
| 495 | |
| 496 | assert( pdwUniqueID != NULL ) ; |
| 497 | |
| 498 | pdwUniqueID[0] = 0 ; |
| 499 | pdwUniqueID[1] = 0 ; |
| 500 | pdwUniqueID[2] = 0 ; |
| 501 | pdwUniqueID[3] = 0 ; |
| 502 | |
| 503 | EFC_StartCommand( EFC, EFC_FCMD_STUI, 0 ) ; |
| 504 | |
| 505 | pdwUniqueID[0] = *(uint32_t*) IFLASH_ADDR; |
| 506 | pdwUniqueID[1] = *(uint32_t*)(IFLASH_ADDR + 4) ; |
| 507 | pdwUniqueID[2] = *(uint32_t*)(IFLASH_ADDR + 8) ; |
| 508 | pdwUniqueID[3] = *(uint32_t*)(IFLASH_ADDR + 12) ; |
| 509 | |
| 510 | dwError = EFC_PerformCommand( EFC, EFC_FCMD_SPUI, 0, _dwUseIAP ) ; |
| 511 | if ( dwError ) |
| 512 | { |
| 513 | return dwError ; |
| 514 | } |
| 515 | |
| 516 | return 0 ; |
| 517 | } |