Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [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 |
|
| 78 | #include <string.h>
|
| 79 | #include <assert.h>
|
| 80 |
|
| 81 | /*----------------------------------------------------------------------------
|
| 82 | * Local variables
|
| 83 | *----------------------------------------------------------------------------*/
|
| 84 |
|
| 85 | //static NO_INIT uint8_t _aucPageBuffer[IFLASH_PAGE_SIZE] ;
|
| 86 | static NO_INIT uint32_t _adwPageBuffer[IFLASH_PAGE_SIZE/4] ;
|
| 87 | static uint8_t* _aucPageBuffer = (uint8_t*)_adwPageBuffer;
|
| 88 | static NO_INIT uint32_t _dwUseIAP ;
|
| 89 |
|
| 90 | /*----------------------------------------------------------------------------
|
| 91 | * Local macros
|
| 92 | *----------------------------------------------------------------------------*/
|
| 93 |
|
| 94 | #define min( a, b ) (((a) < (b)) ? (a) : (b))
|
| 95 |
|
| 96 | /*----------------------------------------------------------------------------
|
| 97 | * Local functions
|
| 98 | *----------------------------------------------------------------------------*/
|
| 99 |
|
| 100 |
|
| 101 | /**
|
| 102 | * \brief Computes the lock range associated with the given address range.
|
| 103 | *
|
| 104 | * \param dwStart Start address of lock range.
|
| 105 | * \param dwEnd End address of lock range.
|
| 106 | * \param pdwActualStart Actual start address of lock range.
|
| 107 | * \param pdwActualEnd Actual end address of lock range.
|
| 108 | */
|
| 109 | static void ComputeLockRange( uint32_t dwStart, uint32_t dwEnd, uint32_t *pdwActualStart, uint32_t *pdwActualEnd )
|
| 110 | {
|
| 111 | Efc* pStartEfc ;
|
| 112 | Efc* pEndEfc ;
|
| 113 | uint16_t wStartPage ;
|
| 114 | uint16_t wEndPage ;
|
| 115 | uint16_t wNumPagesInRegion ;
|
| 116 | uint16_t wActualStartPage ;
|
| 117 | uint16_t wActualEndPage ;
|
| 118 |
|
| 119 | // Convert start and end address in page numbers
|
| 120 | EFC_TranslateAddress( &pStartEfc, dwStart, &wStartPage, 0 ) ;
|
| 121 | EFC_TranslateAddress( &pEndEfc, dwEnd, &wEndPage, 0 ) ;
|
| 122 |
|
| 123 | // Find out the first page of the first region to lock
|
| 124 | wNumPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE ;
|
| 125 | wActualStartPage = wStartPage - (wStartPage % wNumPagesInRegion) ;
|
| 126 | wActualEndPage = wEndPage ;
|
| 127 |
|
| 128 | if ( (wEndPage % wNumPagesInRegion) != 0 )
|
| 129 | {
|
| 130 | wActualEndPage += wNumPagesInRegion - (wEndPage % wNumPagesInRegion) ;
|
| 131 | }
|
| 132 | // Store actual page numbers
|
| 133 | EFC_ComputeAddress( pStartEfc, wActualStartPage, 0, pdwActualStart ) ;
|
| 134 | EFC_ComputeAddress( pEndEfc, wActualEndPage, 0, pdwActualEnd ) ;
|
| 135 | TRACE_DEBUG( "Actual lock range is 0x%06X - 0x%06X\n\r", *pdwActualStart, *pdwActualEnd ) ;
|
| 136 | }
|
| 137 |
|
| 138 |
|
| 139 | /*----------------------------------------------------------------------------
|
| 140 | * Exported functions
|
| 141 | *----------------------------------------------------------------------------*/
|
| 142 |
|
| 143 | /**
|
| 144 | * \brief Initializes the flash driver.
|
| 145 | *
|
| 146 | * \param mck Master clock frequency in Hz.
|
| 147 | */
|
| 148 |
|
| 149 | extern void FLASHD_Initialize( uint32_t dwMCk, uint32_t dwUseIAP )
|
| 150 | {
|
| 151 | EFC_DisableFrdyIt( EFC ) ;
|
| 152 |
|
| 153 | if ( (dwMCk/1000000) >= 64 )
|
| 154 | {
|
| 155 | EFC_SetWaitState( EFC, 2 ) ;
|
| 156 | }
|
| 157 | else
|
| 158 | {
|
| 159 | if ( (dwMCk/1000000) >= 50 )
|
| 160 | {
|
| 161 | EFC_SetWaitState( EFC, 1 ) ;
|
| 162 | }
|
| 163 | else
|
| 164 | {
|
| 165 | EFC_SetWaitState( EFC, 0 ) ;
|
| 166 | }
|
| 167 | }
|
| 168 |
|
| 169 | _dwUseIAP=dwUseIAP ;
|
| 170 | }
|
| 171 |
|
| 172 | /**
|
| 173 | * \brief Erases the entire flash.
|
| 174 | *
|
| 175 | * \param address Flash start address.
|
| 176 | * \return 0 if successful; otherwise returns an error code.
|
| 177 | */
|
| 178 | extern uint32_t FLASHD_Erase( uint32_t dwAddress )
|
| 179 | {
|
| 180 | Efc* pEfc ;
|
| 181 | uint16_t wPage ;
|
| 182 | uint16_t wOffset ;
|
| 183 | uint32_t dwError ;
|
| 184 |
|
| 185 | assert( (dwAddress >=IFLASH_ADDR) || (dwAddress <= (IFLASH_ADDR + IFLASH_SIZE)) ) ;
|
| 186 |
|
| 187 | // Translate write address
|
| 188 | EFC_TranslateAddress( &pEfc, dwAddress, &wPage, &wOffset ) ;
|
| 189 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_EA, 0, _dwUseIAP ) ;
|
| 190 |
|
| 191 | return dwError ;
|
| 192 | }
|
| 193 |
|
| 194 | /**
|
| 195 | * \brief Writes a data buffer in the internal flash
|
| 196 | *
|
| 197 | * \note This function works in polling mode, and thus only returns when the
|
| 198 | * data has been effectively written.
|
| 199 | * \param address Write address.
|
| 200 | * \param pBuffer Data buffer.
|
| 201 | * \param size Size of data buffer in bytes.
|
| 202 | * \return 0 if successful, otherwise returns an error code.
|
| 203 | */
|
| 204 | extern uint32_t FLASHD_Write( uint32_t dwAddress, const void *pvBuffer, uint32_t dwSize )
|
| 205 | {
|
| 206 | Efc* pEfc ;
|
| 207 | uint16_t page ;
|
| 208 | uint16_t offset ;
|
| 209 | uint32_t writeSize ;
|
| 210 | uint32_t pageAddress ;
|
| 211 | uint16_t padding ;
|
| 212 | uint32_t dwError ;
|
| 213 | uint32_t sizeTmp ;
|
| 214 | uint32_t *pAlignedDestination ;
|
| 215 | uint32_t *pAlignedSource ;
|
| 216 |
|
| 217 | assert( pvBuffer ) ;
|
| 218 | assert( dwAddress >=IFLASH_ADDR ) ;
|
| 219 | assert( (dwAddress + dwSize) <= (IFLASH_ADDR + IFLASH_SIZE) ) ;
|
| 220 |
|
| 221 | /* Translate write address */
|
| 222 | EFC_TranslateAddress( &pEfc, dwAddress, &page, &offset ) ;
|
| 223 |
|
| 224 | /* Write all pages */
|
| 225 | while ( dwSize > 0 )
|
| 226 | {
|
| 227 | /* Copy data in temporary buffer to avoid alignment problems */
|
| 228 | writeSize = min((uint32_t)IFLASH_PAGE_SIZE - offset, dwSize ) ;
|
| 229 | EFC_ComputeAddress(pEfc, page, 0, &pageAddress ) ;
|
| 230 | padding = IFLASH_PAGE_SIZE - offset - writeSize ;
|
| 231 |
|
| 232 | /* Pre-buffer data */
|
| 233 | memcpy( _aucPageBuffer, (void *) pageAddress, offset);
|
| 234 |
|
| 235 | /* Buffer data */
|
| 236 | memcpy( _aucPageBuffer + offset, pvBuffer, writeSize);
|
| 237 |
|
| 238 | /* Post-buffer data */
|
| 239 | memcpy( _aucPageBuffer + offset + writeSize, (void *) (pageAddress + offset + writeSize), padding);
|
| 240 |
|
| 241 | /* Write page
|
| 242 | * Writing 8-bit and 16-bit data is not allowed and may lead to unpredictable data corruption
|
| 243 | */
|
| 244 | pAlignedDestination = (uint32_t*)pageAddress ;
|
| 245 | pAlignedSource = (uint32_t*)_adwPageBuffer ;
|
| 246 | sizeTmp = IFLASH_PAGE_SIZE ;
|
| 247 |
|
| 248 | while ( sizeTmp >= 4 )
|
| 249 | {
|
| 250 | *pAlignedDestination++ = *pAlignedSource++;
|
| 251 | sizeTmp -= 4;
|
| 252 | }
|
| 253 |
|
| 254 | /* Send writing command */
|
| 255 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_EWP, page, _dwUseIAP ) ;
|
| 256 | if ( dwError )
|
| 257 | {
|
| 258 | return dwError ;
|
| 259 | }
|
| 260 |
|
| 261 | /* Progression */
|
| 262 | dwAddress += IFLASH_PAGE_SIZE ;
|
| 263 | pvBuffer = (void *)((uint32_t) pvBuffer + writeSize) ;
|
| 264 | dwSize -= writeSize ;
|
| 265 | page++;
|
| 266 | offset = 0;
|
| 267 | }
|
| 268 |
|
| 269 | return 0 ;
|
| 270 | }
|
| 271 | /**
|
| 272 | * \brief Locks all the regions in the given address range. The actual lock range is
|
| 273 | * reported through two output parameters.
|
| 274 | *
|
| 275 | * \param start Start address of lock range.
|
| 276 | * \param end End address of lock range.
|
| 277 | * \param pActualStart Start address of the actual lock range (optional).
|
| 278 | * \param pActualEnd End address of the actual lock range (optional).
|
| 279 | * \return 0 if successful, otherwise returns an error code.
|
| 280 | */
|
| 281 | extern uint32_t FLASHD_Lock( uint32_t start, uint32_t end, uint32_t *pActualStart, uint32_t *pActualEnd )
|
| 282 | {
|
| 283 | Efc *pEfc ;
|
| 284 | uint32_t actualStart, actualEnd ;
|
| 285 | uint16_t startPage, endPage ;
|
| 286 | uint32_t dwError ;
|
| 287 | uint16_t numPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE;
|
| 288 |
|
| 289 | /* Compute actual lock range and store it */
|
| 290 | ComputeLockRange( start, end, &actualStart, &actualEnd ) ;
|
| 291 | if ( pActualStart != NULL )
|
| 292 | {
|
| 293 | *pActualStart = actualStart ;
|
| 294 | }
|
| 295 | if ( pActualEnd != NULL )
|
| 296 | {
|
| 297 | *pActualEnd = actualEnd;
|
| 298 | }
|
| 299 |
|
| 300 | /* Compute page numbers */
|
| 301 | EFC_TranslateAddress( &pEfc, actualStart, &startPage, 0 ) ;
|
| 302 | EFC_TranslateAddress( 0, actualEnd, &endPage, 0 ) ;
|
| 303 |
|
| 304 | /* Lock all pages */
|
| 305 | while ( startPage < endPage )
|
| 306 | {
|
| 307 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_SLB, startPage, _dwUseIAP ) ;
|
| 308 | if ( dwError )
|
| 309 | {
|
| 310 | return dwError ;
|
| 311 | }
|
| 312 | startPage += numPagesInRegion;
|
| 313 | }
|
| 314 |
|
| 315 | return 0 ;
|
| 316 | }
|
| 317 |
|
| 318 | /**
|
| 319 | * \brief Unlocks all the regions in the given address range. The actual unlock range is
|
| 320 | * reported through two output parameters.
|
| 321 | * \param start Start address of unlock range.
|
| 322 | * \param end End address of unlock range.
|
| 323 | * \param pActualStart Start address of the actual unlock range (optional).
|
| 324 | * \param pActualEnd End address of the actual unlock range (optional).
|
| 325 | * \return 0 if successful, otherwise returns an error code.
|
| 326 | */
|
| 327 | extern uint32_t FLASHD_Unlock( uint32_t start, uint32_t end, uint32_t *pActualStart, uint32_t *pActualEnd )
|
| 328 | {
|
| 329 | Efc* pEfc ;
|
| 330 | uint32_t actualStart, actualEnd ;
|
| 331 | uint16_t startPage, endPage ;
|
| 332 | uint32_t dwError ;
|
| 333 | uint16_t numPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE;
|
| 334 |
|
| 335 | // Compute actual unlock range and store it
|
| 336 | ComputeLockRange(start, end, &actualStart, &actualEnd);
|
| 337 | if ( pActualStart != NULL )
|
| 338 | {
|
| 339 | *pActualStart = actualStart ;
|
| 340 | }
|
| 341 | if ( pActualEnd != NULL )
|
| 342 | {
|
| 343 | *pActualEnd = actualEnd ;
|
| 344 | }
|
| 345 |
|
| 346 | // Compute page numbers
|
| 347 | EFC_TranslateAddress( &pEfc, actualStart, &startPage, 0 ) ;
|
| 348 | EFC_TranslateAddress( 0, actualEnd, &endPage, 0 ) ;
|
| 349 |
|
| 350 | // Unlock all pages
|
| 351 | while ( startPage < endPage )
|
| 352 | {
|
| 353 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_CLB, startPage, _dwUseIAP ) ;
|
| 354 | if ( dwError )
|
| 355 | {
|
| 356 | return dwError ;
|
| 357 | }
|
| 358 | startPage += numPagesInRegion ;
|
| 359 | }
|
| 360 | return 0 ;
|
| 361 | }
|
| 362 |
|
| 363 | /**
|
| 364 | * \brief Returns the number of locked regions inside the given address range.
|
| 365 | *
|
| 366 | * \param start Start address of range
|
| 367 | * \param end End address of range.
|
| 368 | */
|
| 369 | extern uint32_t FLASHD_IsLocked( uint32_t start, uint32_t end )
|
| 370 | {
|
| 371 | Efc *pEfc ;
|
| 372 | uint16_t startPage, endPage ;
|
| 373 | uint8_t startRegion, endRegion ;
|
| 374 | uint32_t numPagesInRegion ;
|
| 375 | uint32_t status ;
|
| 376 | uint32_t dwError ;
|
| 377 | uint32_t numLockedRegions = 0 ;
|
| 378 |
|
| 379 | assert( end >= start ) ;
|
| 380 | assert( (start >=IFLASH_ADDR) && (end <= IFLASH_ADDR + IFLASH_SIZE) ) ;
|
| 381 |
|
| 382 | // Compute page numbers
|
| 383 | EFC_TranslateAddress( &pEfc, start, &startPage, 0 ) ;
|
| 384 | EFC_TranslateAddress( 0, end, &endPage, 0 ) ;
|
| 385 |
|
| 386 | // Compute region numbers
|
| 387 | numPagesInRegion = IFLASH_LOCK_REGION_SIZE / IFLASH_PAGE_SIZE ;
|
| 388 | startRegion = startPage / numPagesInRegion ;
|
| 389 | endRegion = endPage / numPagesInRegion ;
|
| 390 | if ((endPage % numPagesInRegion) != 0)
|
| 391 | {
|
| 392 | endRegion++ ;
|
| 393 | }
|
| 394 |
|
| 395 | // Retrieve lock status
|
| 396 | dwError = EFC_PerformCommand( pEfc, EFC_FCMD_GLB, 0, _dwUseIAP ) ;
|
| 397 | assert( !dwError ) ;
|
| 398 | status = EFC_GetResult( pEfc ) ;
|
| 399 |
|
| 400 | // Check status of each involved region
|
| 401 | while ( startRegion < endRegion )
|
| 402 | {
|
| 403 | if ( (status & (1 << startRegion)) != 0 )
|
| 404 | {
|
| 405 | numLockedRegions++ ;
|
| 406 | }
|
| 407 | startRegion++ ;
|
| 408 | }
|
| 409 |
|
| 410 | return numLockedRegions ;
|
| 411 | }
|
| 412 |
|
| 413 | /**
|
| 414 | * \brief Check if the given GPNVM bit is set or not.
|
| 415 | *
|
| 416 | * \param gpnvm GPNVM bit index.
|
| 417 | * \returns 1 if the given GPNVM bit is currently set; otherwise returns 0.
|
| 418 | */
|
| 419 | extern uint32_t FLASHD_IsGPNVMSet( uint8_t ucGPNVM )
|
| 420 | {
|
| 421 | uint32_t dwError ;
|
| 422 | uint32_t dwStatus ;
|
| 423 |
|
| 424 | assert( ucGPNVM < 2 ) ;
|
| 425 |
|
| 426 | /* Get GPNVMs status */
|
| 427 | dwError = EFC_PerformCommand( EFC, EFC_FCMD_GFB, 0, _dwUseIAP ) ;
|
| 428 | assert( !dwError ) ;
|
| 429 | dwStatus = EFC_GetResult( EFC ) ;
|
| 430 |
|
| 431 | /* Check if GPNVM is set */
|
| 432 | if ( (dwStatus & (1 << ucGPNVM)) != 0 )
|
| 433 | {
|
| 434 | return 1 ;
|
| 435 | }
|
| 436 | else
|
| 437 | {
|
| 438 | return 0 ;
|
| 439 | }
|
| 440 | }
|
| 441 |
|
| 442 | /**
|
| 443 | * \brief Sets the selected GPNVM bit.
|
| 444 | *
|
| 445 | * \param gpnvm GPNVM bit index.
|
| 446 | * \returns 0 if successful; otherwise returns an error code.
|
| 447 | */
|
| 448 | extern uint32_t FLASHD_SetGPNVM( uint8_t ucGPNVM )
|
| 449 | {
|
| 450 | assert( ucGPNVM < 2 ) ;
|
| 451 |
|
| 452 | if ( !FLASHD_IsGPNVMSet( ucGPNVM ) )
|
| 453 | {
|
| 454 | return EFC_PerformCommand( EFC, EFC_FCMD_SFB, ucGPNVM, _dwUseIAP ) ;
|
| 455 | }
|
| 456 | else
|
| 457 | {
|
| 458 | return 0 ;
|
| 459 | }
|
| 460 | }
|
| 461 |
|
| 462 | /**
|
| 463 | * \brief Clears the selected GPNVM bit.
|
| 464 | *
|
| 465 | * \param gpnvm GPNVM bit index.
|
| 466 | * \returns 0 if successful; otherwise returns an error code.
|
| 467 | */
|
| 468 | extern uint32_t FLASHD_ClearGPNVM( uint8_t ucGPNVM )
|
| 469 | {
|
| 470 | assert( ucGPNVM < 2 ) ;
|
| 471 |
|
| 472 | if ( FLASHD_IsGPNVMSet( ucGPNVM ) )
|
| 473 | {
|
| 474 | return EFC_PerformCommand( EFC, EFC_FCMD_CFB, ucGPNVM, _dwUseIAP ) ;
|
| 475 | }
|
| 476 | else
|
| 477 | {
|
| 478 | return 0 ;
|
| 479 | }
|
| 480 | }
|
| 481 | /**
|
| 482 | * \brief Read the unique ID.
|
| 483 | *
|
| 484 | * \param uniqueID pointer on a 4bytes char containing the unique ID value.
|
| 485 | * \returns 0 if successful; otherwise returns an error code.
|
| 486 | */
|
| 487 | extern uint32_t FLASHD_ReadUniqueID( uint32_t* pdwUniqueID )
|
| 488 | {
|
| 489 | uint32_t dwError ;
|
| 490 |
|
| 491 | assert( pdwUniqueID != NULL ) ;
|
| 492 |
|
| 493 | pdwUniqueID[0] = 0 ;
|
| 494 | pdwUniqueID[1] = 0 ;
|
| 495 | pdwUniqueID[2] = 0 ;
|
| 496 | pdwUniqueID[3] = 0 ;
|
| 497 |
|
| 498 | EFC_StartCommand( EFC, EFC_FCMD_STUI, 0 ) ;
|
| 499 |
|
| 500 | pdwUniqueID[0] = *(uint32_t*) IFLASH_ADDR;
|
| 501 | pdwUniqueID[1] = *(uint32_t*)(IFLASH_ADDR + 4) ;
|
| 502 | pdwUniqueID[2] = *(uint32_t*)(IFLASH_ADDR + 8) ;
|
| 503 | pdwUniqueID[3] = *(uint32_t*)(IFLASH_ADDR + 12) ;
|
| 504 |
|
| 505 | dwError = EFC_PerformCommand( EFC, EFC_FCMD_SPUI, 0, _dwUseIAP ) ;
|
| 506 | if ( dwError )
|
| 507 | {
|
| 508 | return dwError ;
|
| 509 | }
|
| 510 |
|
| 511 | return 0 ;
|
| 512 | }
|