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STM32756G_EVAL BSP User Manual
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stm32756g_eval_qspi.c
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00001 /** 00002 ****************************************************************************** 00003 * @file stm32756g_eval_qspi.c 00004 * @author MCD Application Team 00005 * @version V1.0.0 00006 * @date 22-May-2015 00007 * @brief This file includes a standard driver for the N25Q512A QSPI 00008 * memory mounted on STM32756G-EVAL and STM32746G-EVAL board. 00009 @verbatim 00010 ============================================================================== 00011 ##### How to use this driver ##### 00012 ============================================================================== 00013 [..] 00014 (#) This driver is used to drive the N25Q512A QSPI external 00015 memory mounted on STM32756G-EVAL and STM32746G-EVAL evaluation board. 00016 00017 (#) This driver need a specific component driver (N25Q512A) to be included with. 00018 00019 (#) Initialization steps: 00020 (++) Initialize the QPSI external memory using the BSP_QSPI_Init() function. This 00021 function includes the MSP layer hardware resources initialization and the 00022 QSPI interface with the external memory. 00023 00024 (#) QSPI memory operations 00025 (++) QSPI memory can be accessed with read/write operations once it is 00026 initialized. 00027 Read/write operation can be performed with AHB access using the functions 00028 BSP_QSPI_Read()/BSP_QSPI_Write(). 00029 (++) The function BSP_QSPI_GetInfo() returns the configuration of the QSPI memory. 00030 (see the QSPI memory data sheet) 00031 (++) Perform erase block operation using the function BSP_QSPI_Erase_Block() and by 00032 specifying the block address. You can perform an erase operation of the whole 00033 chip by calling the function BSP_QSPI_Erase_Chip(). 00034 (++) The function BSP_QSPI_GetStatus() returns the current status of the QSPI memory. 00035 (see the QSPI memory data sheet) 00036 @endverbatim 00037 ****************************************************************************** 00038 * @attention 00039 * 00040 * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> 00041 * 00042 * Redistribution and use in source and binary forms, with or without modification, 00043 * are permitted provided that the following conditions are met: 00044 * 1. Redistributions of source code must retain the above copyright notice, 00045 * this list of conditions and the following disclaimer. 00046 * 2. Redistributions in binary form must reproduce the above copyright notice, 00047 * this list of conditions and the following disclaimer in the documentation 00048 * and/or other materials provided with the distribution. 00049 * 3. Neither the name of STMicroelectronics nor the names of its contributors 00050 * may be used to endorse or promote products derived from this software 00051 * without specific prior written permission. 00052 * 00053 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00054 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00055 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00056 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 00057 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00058 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00059 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00060 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00061 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00062 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00063 * 00064 ****************************************************************************** 00065 */ 00066 00067 /* Includes ------------------------------------------------------------------*/ 00068 #include "stm32756g_eval_qspi.h" 00069 00070 /** @addtogroup BSP 00071 * @{ 00072 */ 00073 00074 /** @addtogroup STM32756G_EVAL 00075 * @{ 00076 */ 00077 00078 /** @defgroup STM32756G_EVAL_QSPI STM32756G-EVAL QSPI 00079 * @{ 00080 */ 00081 00082 00083 /* Private variables ---------------------------------------------------------*/ 00084 00085 /** @defgroup STM32756G_EVAL_QSPI_Private_Variables Private Variables 00086 * @{ 00087 */ 00088 QSPI_HandleTypeDef QSPIHandle; 00089 00090 /** 00091 * @} 00092 */ 00093 00094 00095 00096 /* Private functions ---------------------------------------------------------*/ 00097 00098 /** @defgroup STM32756G_EVAL_QSPI_Private_Functions Private Functions 00099 * @{ 00100 */ 00101 static uint8_t QSPI_ResetMemory (QSPI_HandleTypeDef *hqspi); 00102 static uint8_t QSPI_EnterFourBytesAddress(QSPI_HandleTypeDef *hqspi); 00103 static uint8_t QSPI_DummyCyclesCfg (QSPI_HandleTypeDef *hqspi); 00104 static uint8_t QSPI_WriteEnable (QSPI_HandleTypeDef *hqspi); 00105 static uint8_t QSPI_AutoPollingMemReady(QSPI_HandleTypeDef *hqspi, uint32_t Timeout); 00106 00107 /** 00108 * @} 00109 */ 00110 00111 /** @defgroup STM32756G_EVAL_QSPI_Exported_Functions Exported Functions 00112 * @{ 00113 */ 00114 00115 /** 00116 * @brief Initializes the QSPI interface. 00117 * @retval QSPI memory status 00118 */ 00119 uint8_t BSP_QSPI_Init(void) 00120 { 00121 QSPIHandle.Instance = QUADSPI; 00122 00123 /* Call the DeInit function to reset the driver */ 00124 if (HAL_QSPI_DeInit(&QSPIHandle) != HAL_OK) 00125 { 00126 return QSPI_ERROR; 00127 } 00128 00129 /* System level initialization */ 00130 BSP_QSPI_MspInit(&QSPIHandle, NULL); 00131 00132 /* QSPI initialization */ 00133 /* QSPI freq = SYSCLK /(1 + ClockPrescaler) = 216 MHz/(1+1) = 108 Mhz */ 00134 QSPIHandle.Init.ClockPrescaler = 1; 00135 QSPIHandle.Init.FifoThreshold = 4; 00136 QSPIHandle.Init.SampleShifting = QSPI_SAMPLE_SHIFTING_HALFCYCLE; 00137 QSPIHandle.Init.FlashSize = POSITION_VAL(N25Q512A_FLASH_SIZE) - 1; 00138 QSPIHandle.Init.ChipSelectHighTime = QSPI_CS_HIGH_TIME_2_CYCLE; 00139 QSPIHandle.Init.ClockMode = QSPI_CLOCK_MODE_0; 00140 QSPIHandle.Init.FlashID = QSPI_FLASH_ID_1; 00141 QSPIHandle.Init.DualFlash = QSPI_DUALFLASH_DISABLE; 00142 00143 if (HAL_QSPI_Init(&QSPIHandle) != HAL_OK) 00144 { 00145 return QSPI_ERROR; 00146 } 00147 00148 /* QSPI memory reset */ 00149 if (QSPI_ResetMemory(&QSPIHandle) != QSPI_OK) 00150 { 00151 return QSPI_NOT_SUPPORTED; 00152 } 00153 00154 /* Set the QSPI memory in 4-bytes address mode */ 00155 if (QSPI_EnterFourBytesAddress(&QSPIHandle) != QSPI_OK) 00156 { 00157 return QSPI_NOT_SUPPORTED; 00158 } 00159 00160 /* Configuration of the dummy cycles on QSPI memory side */ 00161 if (QSPI_DummyCyclesCfg(&QSPIHandle) != QSPI_OK) 00162 { 00163 return QSPI_NOT_SUPPORTED; 00164 } 00165 00166 return QSPI_OK; 00167 } 00168 00169 /** 00170 * @brief De-Initializes the QSPI interface. 00171 * @retval QSPI memory status 00172 */ 00173 uint8_t BSP_QSPI_DeInit(void) 00174 { 00175 QSPIHandle.Instance = QUADSPI; 00176 00177 /* Call the DeInit function to reset the driver */ 00178 if (HAL_QSPI_DeInit(&QSPIHandle) != HAL_OK) 00179 { 00180 return QSPI_ERROR; 00181 } 00182 00183 /* System level De-initialization */ 00184 BSP_QSPI_MspDeInit(&QSPIHandle, NULL); 00185 00186 return QSPI_OK; 00187 } 00188 00189 /** 00190 * @brief Reads an amount of data from the QSPI memory. 00191 * @param pData: Pointer to data to be read 00192 * @param ReadAddr: Read start address 00193 * @param Size: Size of data to read 00194 * @retval QSPI memory status 00195 */ 00196 uint8_t BSP_QSPI_Read(uint8_t* pData, uint32_t ReadAddr, uint32_t Size) 00197 { 00198 QSPI_CommandTypeDef s_command; 00199 00200 /* Initialize the read command */ 00201 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00202 s_command.Instruction = QUAD_OUT_FAST_READ_CMD; 00203 s_command.AddressMode = QSPI_ADDRESS_1_LINE; 00204 s_command.AddressSize = QSPI_ADDRESS_32_BITS; 00205 s_command.Address = ReadAddr; 00206 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00207 s_command.DataMode = QSPI_DATA_4_LINES; 00208 s_command.DummyCycles = N25Q512A_DUMMY_CYCLES_READ_QUAD; 00209 s_command.NbData = Size; 00210 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00211 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00212 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00213 00214 /* Configure the command */ 00215 if (HAL_QSPI_Command(&QSPIHandle, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00216 { 00217 return QSPI_ERROR; 00218 } 00219 00220 /* Reception of the data */ 00221 if (HAL_QSPI_Receive(&QSPIHandle, pData, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00222 { 00223 return QSPI_ERROR; 00224 } 00225 00226 return QSPI_OK; 00227 } 00228 00229 /** 00230 * @brief Writes an amount of data to the QSPI memory. 00231 * @param pData: Pointer to data to be written 00232 * @param WriteAddr: Write start address 00233 * @param Size: Size of data to write 00234 * @retval QSPI memory status 00235 */ 00236 uint8_t BSP_QSPI_Write(uint8_t* pData, uint32_t WriteAddr, uint32_t Size) 00237 { 00238 QSPI_CommandTypeDef s_command; 00239 uint32_t end_addr, current_size, current_addr; 00240 00241 /* Calculation of the size between the write address and the end of the page */ 00242 current_addr = 0; 00243 00244 while (current_addr <= WriteAddr) 00245 { 00246 current_addr += N25Q512A_PAGE_SIZE; 00247 } 00248 current_size = current_addr - WriteAddr; 00249 00250 /* Check if the size of the data is less than the remaining place in the page */ 00251 if (current_size > Size) 00252 { 00253 current_size = Size; 00254 } 00255 00256 /* Initialize the address variables */ 00257 current_addr = WriteAddr; 00258 end_addr = WriteAddr + Size; 00259 00260 /* Initialize the program command */ 00261 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00262 s_command.Instruction = QUAD_IN_FAST_PROG_CMD; 00263 s_command.AddressMode = QSPI_ADDRESS_1_LINE; 00264 s_command.AddressSize = QSPI_ADDRESS_32_BITS; 00265 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00266 s_command.DataMode = QSPI_DATA_4_LINES; 00267 s_command.DummyCycles = 0; 00268 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00269 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00270 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00271 00272 /* Perform the write page by page */ 00273 do 00274 { 00275 s_command.Address = current_addr; 00276 s_command.NbData = current_size; 00277 00278 /* Enable write operations */ 00279 if (QSPI_WriteEnable(&QSPIHandle) != QSPI_OK) 00280 { 00281 return QSPI_ERROR; 00282 } 00283 00284 /* Configure the command */ 00285 if (HAL_QSPI_Command(&QSPIHandle, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00286 { 00287 return QSPI_ERROR; 00288 } 00289 00290 /* Transmission of the data */ 00291 if (HAL_QSPI_Transmit(&QSPIHandle, pData, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00292 { 00293 return QSPI_ERROR; 00294 } 00295 00296 /* Configure automatic polling mode to wait for end of program */ 00297 if (QSPI_AutoPollingMemReady(&QSPIHandle, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != QSPI_OK) 00298 { 00299 return QSPI_ERROR; 00300 } 00301 00302 /* Update the address and size variables for next page programming */ 00303 current_addr += current_size; 00304 pData += current_size; 00305 current_size = ((current_addr + N25Q512A_PAGE_SIZE) > end_addr) ? (end_addr - current_addr) : N25Q512A_PAGE_SIZE; 00306 } while (current_addr < end_addr); 00307 00308 return QSPI_OK; 00309 } 00310 00311 /** 00312 * @brief Erases the specified block of the QSPI memory. 00313 * @param BlockAddress: Block address to erase 00314 * @retval QSPI memory status 00315 */ 00316 uint8_t BSP_QSPI_Erase_Block(uint32_t BlockAddress) 00317 { 00318 QSPI_CommandTypeDef s_command; 00319 00320 /* Initialize the erase command */ 00321 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00322 s_command.Instruction = SUBSECTOR_ERASE_CMD; 00323 s_command.AddressMode = QSPI_ADDRESS_1_LINE; 00324 s_command.AddressSize = QSPI_ADDRESS_32_BITS; 00325 s_command.Address = BlockAddress; 00326 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00327 s_command.DataMode = QSPI_DATA_NONE; 00328 s_command.DummyCycles = 0; 00329 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00330 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00331 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00332 00333 /* Enable write operations */ 00334 if (QSPI_WriteEnable(&QSPIHandle) != QSPI_OK) 00335 { 00336 return QSPI_ERROR; 00337 } 00338 00339 /* Send the command */ 00340 if (HAL_QSPI_Command(&QSPIHandle, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00341 { 00342 return QSPI_ERROR; 00343 } 00344 00345 /* Configure automatic polling mode to wait for end of erase */ 00346 if (QSPI_AutoPollingMemReady(&QSPIHandle, N25Q512A_SUBSECTOR_ERASE_MAX_TIME) != QSPI_OK) 00347 { 00348 return QSPI_ERROR; 00349 } 00350 00351 return QSPI_OK; 00352 } 00353 00354 /** 00355 * @brief Erases the entire QSPI memory. 00356 * @retval QSPI memory status 00357 */ 00358 uint8_t BSP_QSPI_Erase_Chip(void) 00359 { 00360 QSPI_CommandTypeDef s_command; 00361 00362 /* Initialize the erase command */ 00363 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00364 s_command.Instruction = BULK_ERASE_CMD; 00365 s_command.AddressMode = QSPI_ADDRESS_NONE; 00366 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00367 s_command.DataMode = QSPI_DATA_NONE; 00368 s_command.DummyCycles = 0; 00369 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00370 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00371 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00372 00373 /* Enable write operations */ 00374 if (QSPI_WriteEnable(&QSPIHandle) != QSPI_OK) 00375 { 00376 return QSPI_ERROR; 00377 } 00378 00379 /* Send the command */ 00380 if (HAL_QSPI_Command(&QSPIHandle, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00381 { 00382 return QSPI_ERROR; 00383 } 00384 00385 /* Configure automatic polling mode to wait for end of erase */ 00386 if (QSPI_AutoPollingMemReady(&QSPIHandle, N25Q512A_BULK_ERASE_MAX_TIME) != QSPI_OK) 00387 { 00388 return QSPI_ERROR; 00389 } 00390 00391 return QSPI_OK; 00392 } 00393 00394 /** 00395 * @brief Reads current status of the QSPI memory. 00396 * @retval QSPI memory status 00397 */ 00398 uint8_t BSP_QSPI_GetStatus(void) 00399 { 00400 QSPI_CommandTypeDef s_command; 00401 uint8_t reg; 00402 00403 /* Initialize the read flag status register command */ 00404 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00405 s_command.Instruction = READ_FLAG_STATUS_REG_CMD; 00406 s_command.AddressMode = QSPI_ADDRESS_NONE; 00407 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00408 s_command.DataMode = QSPI_DATA_1_LINE; 00409 s_command.DummyCycles = 0; 00410 s_command.NbData = 1; 00411 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00412 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00413 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00414 00415 /* Configure the command */ 00416 if (HAL_QSPI_Command(&QSPIHandle, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00417 { 00418 return QSPI_ERROR; 00419 } 00420 00421 /* Reception of the data */ 00422 if (HAL_QSPI_Receive(&QSPIHandle, ®, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00423 { 00424 return QSPI_ERROR; 00425 } 00426 00427 /* Check the value of the register */ 00428 if ((reg & (N25Q512A_FSR_PRERR | N25Q512A_FSR_VPPERR | N25Q512A_FSR_PGERR | N25Q512A_FSR_ERERR)) != 0) 00429 { 00430 return QSPI_ERROR; 00431 } 00432 else if ((reg & (N25Q512A_FSR_PGSUS | N25Q512A_FSR_ERSUS)) != 0) 00433 { 00434 return QSPI_SUSPENDED; 00435 } 00436 else if ((reg & N25Q512A_FSR_READY) != 0) 00437 { 00438 return QSPI_OK; 00439 } 00440 else 00441 { 00442 return QSPI_BUSY; 00443 } 00444 } 00445 00446 /** 00447 * @brief Return the configuration of the QSPI memory. 00448 * @param pInfo: pointer on the configuration structure 00449 * @retval QSPI memory status 00450 */ 00451 uint8_t BSP_QSPI_GetInfo(QSPI_Info* pInfo) 00452 { 00453 /* Configure the structure with the memory configuration */ 00454 pInfo->FlashSize = N25Q512A_FLASH_SIZE; 00455 pInfo->EraseSectorSize = N25Q512A_SUBSECTOR_SIZE; 00456 pInfo->EraseSectorsNumber = (N25Q512A_FLASH_SIZE/N25Q512A_SUBSECTOR_SIZE); 00457 pInfo->ProgPageSize = N25Q512A_PAGE_SIZE; 00458 pInfo->ProgPagesNumber = (N25Q512A_FLASH_SIZE/N25Q512A_PAGE_SIZE); 00459 00460 return QSPI_OK; 00461 } 00462 00463 /** 00464 * @brief Configure the QSPI in memory-mapped mode 00465 * @retval QSPI memory status 00466 */ 00467 uint8_t BSP_QSPI_MemoryMappedMode(void) 00468 { 00469 QSPI_CommandTypeDef s_command; 00470 QSPI_MemoryMappedTypeDef s_mem_mapped_cfg; 00471 00472 /* Configure the command for the read instruction */ 00473 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00474 s_command.Instruction = QUAD_OUT_FAST_READ_CMD; 00475 s_command.AddressMode = QSPI_ADDRESS_1_LINE; 00476 s_command.AddressSize = QSPI_ADDRESS_32_BITS; 00477 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00478 s_command.DataMode = QSPI_DATA_4_LINES; 00479 s_command.DummyCycles = N25Q512A_DUMMY_CYCLES_READ_QUAD; 00480 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00481 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00482 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00483 00484 /* Configure the memory mapped mode */ 00485 s_mem_mapped_cfg.TimeOutActivation = QSPI_TIMEOUT_COUNTER_ENABLE; 00486 s_mem_mapped_cfg.TimeOutPeriod = 1; 00487 00488 if (HAL_QSPI_MemoryMapped(&QSPIHandle, &s_command, &s_mem_mapped_cfg) != HAL_OK) 00489 { 00490 return QSPI_ERROR; 00491 } 00492 00493 return QSPI_OK; 00494 } 00495 00496 /** 00497 * @} 00498 */ 00499 00500 /** @addtogroup STM32756G_EVAL_QSPI_Private_Functions 00501 * @{ 00502 */ 00503 00504 /** 00505 * @brief QSPI MSP Initialization 00506 * This function configures the hardware resources used in this example: 00507 * - Peripheral's clock enable 00508 * - Peripheral's GPIO Configuration 00509 * - NVIC configuration for QSPI interrupt 00510 * @retval None 00511 */ 00512 __weak void BSP_QSPI_MspInit(QSPI_HandleTypeDef *hqspi, void *Params) 00513 { 00514 GPIO_InitTypeDef gpio_init_structure; 00515 00516 /*##-1- Enable peripherals and GPIO Clocks #################################*/ 00517 /* Enable the QuadSPI memory interface clock */ 00518 QSPI_CLK_ENABLE(); 00519 /* Reset the QuadSPI memory interface */ 00520 QSPI_FORCE_RESET(); 00521 QSPI_RELEASE_RESET(); 00522 /* Enable GPIO clocks */ 00523 QSPI_CS_GPIO_CLK_ENABLE(); 00524 QSPI_CLK_GPIO_CLK_ENABLE(); 00525 QSPI_D0_GPIO_CLK_ENABLE(); 00526 QSPI_D1_GPIO_CLK_ENABLE(); 00527 QSPI_D2_GPIO_CLK_ENABLE(); 00528 QSPI_D3_GPIO_CLK_ENABLE(); 00529 00530 /*##-2- Configure peripheral GPIO ##########################################*/ 00531 /* QSPI CS GPIO pin configuration */ 00532 gpio_init_structure.Pin = QSPI_CS_PIN; 00533 gpio_init_structure.Mode = GPIO_MODE_AF_PP; 00534 gpio_init_structure.Pull = GPIO_PULLUP; 00535 gpio_init_structure.Speed = GPIO_SPEED_HIGH; 00536 gpio_init_structure.Alternate = GPIO_AF10_QUADSPI; 00537 HAL_GPIO_Init(QSPI_CS_GPIO_PORT, &gpio_init_structure); 00538 00539 /* QSPI CLK GPIO pin configuration */ 00540 gpio_init_structure.Pin = QSPI_CLK_PIN; 00541 gpio_init_structure.Pull = GPIO_NOPULL; 00542 gpio_init_structure.Alternate = GPIO_AF9_QUADSPI; 00543 HAL_GPIO_Init(QSPI_CLK_GPIO_PORT, &gpio_init_structure); 00544 00545 /* QSPI D0 GPIO pin configuration */ 00546 gpio_init_structure.Pin = QSPI_D0_PIN; 00547 gpio_init_structure.Alternate = GPIO_AF10_QUADSPI; 00548 HAL_GPIO_Init(QSPI_D0_GPIO_PORT, &gpio_init_structure); 00549 00550 /* QSPI D1 GPIO pin configuration */ 00551 gpio_init_structure.Pin = QSPI_D1_PIN; 00552 gpio_init_structure.Alternate = GPIO_AF10_QUADSPI; 00553 HAL_GPIO_Init(QSPI_D1_GPIO_PORT, &gpio_init_structure); 00554 00555 /* QSPI D2 GPIO pin configuration */ 00556 gpio_init_structure.Pin = QSPI_D2_PIN; 00557 gpio_init_structure.Alternate = GPIO_AF9_QUADSPI; 00558 HAL_GPIO_Init(QSPI_D2_GPIO_PORT, &gpio_init_structure); 00559 00560 /* QSPI D3 GPIO pin configuration */ 00561 gpio_init_structure.Pin = QSPI_D3_PIN; 00562 gpio_init_structure.Alternate = GPIO_AF9_QUADSPI; 00563 HAL_GPIO_Init(QSPI_D3_GPIO_PORT, &gpio_init_structure); 00564 00565 /*##-3- Configure the NVIC for QSPI #########################################*/ 00566 /* NVIC configuration for QSPI interrupt */ 00567 HAL_NVIC_SetPriority(QUADSPI_IRQn, 0x0F, 0); 00568 HAL_NVIC_EnableIRQ(QUADSPI_IRQn); 00569 } 00570 00571 /** 00572 * @brief QSPI MSP De-Initialization 00573 * This function frees the hardware resources used in this example: 00574 * - Disable the Peripheral's clock 00575 * - Revert GPIO and NVIC configuration to their default state 00576 * @retval None 00577 */ 00578 __weak void BSP_QSPI_MspDeInit(QSPI_HandleTypeDef *hqspi, void *Params) 00579 { 00580 /*##-1- Disable the NVIC for QSPI ###########################################*/ 00581 HAL_NVIC_DisableIRQ(QUADSPI_IRQn); 00582 00583 /*##-2- Disable peripherals and GPIO Clocks ################################*/ 00584 /* De-Configure QSPI pins */ 00585 HAL_GPIO_DeInit(QSPI_CS_GPIO_PORT, QSPI_CS_PIN); 00586 HAL_GPIO_DeInit(QSPI_CLK_GPIO_PORT, QSPI_CLK_PIN); 00587 HAL_GPIO_DeInit(QSPI_D0_GPIO_PORT, QSPI_D0_PIN); 00588 HAL_GPIO_DeInit(QSPI_D1_GPIO_PORT, QSPI_D1_PIN); 00589 HAL_GPIO_DeInit(QSPI_D2_GPIO_PORT, QSPI_D2_PIN); 00590 HAL_GPIO_DeInit(QSPI_D3_GPIO_PORT, QSPI_D3_PIN); 00591 00592 /*##-3- Reset peripherals ##################################################*/ 00593 /* Reset the QuadSPI memory interface */ 00594 QSPI_FORCE_RESET(); 00595 QSPI_RELEASE_RESET(); 00596 00597 /* Disable the QuadSPI memory interface clock */ 00598 QSPI_CLK_DISABLE(); 00599 } 00600 00601 /** 00602 * @brief This function reset the QSPI memory. 00603 * @param hqspi: QSPI handle 00604 * @retval None 00605 */ 00606 static uint8_t QSPI_ResetMemory(QSPI_HandleTypeDef *hqspi) 00607 { 00608 QSPI_CommandTypeDef s_command; 00609 00610 /* Initialize the reset enable command */ 00611 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00612 s_command.Instruction = RESET_ENABLE_CMD; 00613 s_command.AddressMode = QSPI_ADDRESS_NONE; 00614 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00615 s_command.DataMode = QSPI_DATA_NONE; 00616 s_command.DummyCycles = 0; 00617 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00618 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00619 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00620 00621 /* Send the command */ 00622 if (HAL_QSPI_Command(hqspi, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00623 { 00624 return QSPI_ERROR; 00625 } 00626 00627 /* Send the reset memory command */ 00628 s_command.Instruction = RESET_MEMORY_CMD; 00629 if (HAL_QSPI_Command(hqspi, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00630 { 00631 return QSPI_ERROR; 00632 } 00633 00634 /* Configure automatic polling mode to wait the memory is ready */ 00635 if (QSPI_AutoPollingMemReady(hqspi, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != QSPI_OK) 00636 { 00637 return QSPI_ERROR; 00638 } 00639 00640 return QSPI_OK; 00641 } 00642 00643 /** 00644 * @brief This function set the QSPI memory in 4-byte address mode 00645 * @param hqspi: QSPI handle 00646 * @retval None 00647 */ 00648 static uint8_t QSPI_EnterFourBytesAddress(QSPI_HandleTypeDef *hqspi) 00649 { 00650 QSPI_CommandTypeDef s_command; 00651 00652 /* Initialize the command */ 00653 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00654 s_command.Instruction = ENTER_4_BYTE_ADDR_MODE_CMD; 00655 s_command.AddressMode = QSPI_ADDRESS_NONE; 00656 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00657 s_command.DataMode = QSPI_DATA_NONE; 00658 s_command.DummyCycles = 0; 00659 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00660 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00661 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00662 00663 /* Enable write operations */ 00664 if (QSPI_WriteEnable(hqspi) != QSPI_OK) 00665 { 00666 return QSPI_ERROR; 00667 } 00668 00669 /* Send the command */ 00670 if (HAL_QSPI_Command(hqspi, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00671 { 00672 return QSPI_ERROR; 00673 } 00674 00675 /* Configure automatic polling mode to wait the memory is ready */ 00676 if (QSPI_AutoPollingMemReady(hqspi, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != QSPI_OK) 00677 { 00678 return QSPI_ERROR; 00679 } 00680 00681 return QSPI_OK; 00682 } 00683 00684 /** 00685 * @brief This function configure the dummy cycles on memory side. 00686 * @param hqspi: QSPI handle 00687 * @retval None 00688 */ 00689 static uint8_t QSPI_DummyCyclesCfg(QSPI_HandleTypeDef *hqspi) 00690 { 00691 QSPI_CommandTypeDef s_command; 00692 uint8_t reg; 00693 00694 /* Initialize the read volatile configuration register command */ 00695 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00696 s_command.Instruction = READ_VOL_CFG_REG_CMD; 00697 s_command.AddressMode = QSPI_ADDRESS_NONE; 00698 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00699 s_command.DataMode = QSPI_DATA_1_LINE; 00700 s_command.DummyCycles = 0; 00701 s_command.NbData = 1; 00702 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00703 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00704 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00705 00706 /* Configure the command */ 00707 if (HAL_QSPI_Command(hqspi, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00708 { 00709 return QSPI_ERROR; 00710 } 00711 00712 /* Reception of the data */ 00713 if (HAL_QSPI_Receive(hqspi, ®, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00714 { 00715 return QSPI_ERROR; 00716 } 00717 00718 /* Enable write operations */ 00719 if (QSPI_WriteEnable(hqspi) != QSPI_OK) 00720 { 00721 return QSPI_ERROR; 00722 } 00723 00724 /* Update volatile configuration register (with new dummy cycles) */ 00725 s_command.Instruction = WRITE_VOL_CFG_REG_CMD; 00726 MODIFY_REG(reg, N25Q512A_VCR_NB_DUMMY, (N25Q512A_DUMMY_CYCLES_READ_QUAD << POSITION_VAL(N25Q512A_VCR_NB_DUMMY))); 00727 00728 /* Configure the write volatile configuration register command */ 00729 if (HAL_QSPI_Command(hqspi, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00730 { 00731 return QSPI_ERROR; 00732 } 00733 00734 /* Transmission of the data */ 00735 if (HAL_QSPI_Transmit(hqspi, ®, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00736 { 00737 return QSPI_ERROR; 00738 } 00739 00740 return QSPI_OK; 00741 } 00742 00743 /** 00744 * @brief This function send a Write Enable and wait it is effective. 00745 * @param hqspi: QSPI handle 00746 * @retval None 00747 */ 00748 static uint8_t QSPI_WriteEnable(QSPI_HandleTypeDef *hqspi) 00749 { 00750 QSPI_CommandTypeDef s_command; 00751 QSPI_AutoPollingTypeDef s_config; 00752 00753 /* Enable write operations */ 00754 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00755 s_command.Instruction = WRITE_ENABLE_CMD; 00756 s_command.AddressMode = QSPI_ADDRESS_NONE; 00757 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00758 s_command.DataMode = QSPI_DATA_NONE; 00759 s_command.DummyCycles = 0; 00760 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00761 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00762 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00763 00764 if (HAL_QSPI_Command(hqspi, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00765 { 00766 return QSPI_ERROR; 00767 } 00768 00769 /* Configure automatic polling mode to wait for write enabling */ 00770 s_config.Match = N25Q512A_SR_WREN; 00771 s_config.Mask = N25Q512A_SR_WREN; 00772 s_config.MatchMode = QSPI_MATCH_MODE_AND; 00773 s_config.StatusBytesSize = 1; 00774 s_config.Interval = 0x10; 00775 s_config.AutomaticStop = QSPI_AUTOMATIC_STOP_ENABLE; 00776 00777 s_command.Instruction = READ_STATUS_REG_CMD; 00778 s_command.DataMode = QSPI_DATA_1_LINE; 00779 00780 if (HAL_QSPI_AutoPolling(hqspi, &s_command, &s_config, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) 00781 { 00782 return QSPI_ERROR; 00783 } 00784 00785 return QSPI_OK; 00786 } 00787 00788 /** 00789 * @brief This function read the SR of the memory and wait the EOP. 00790 * @param hqspi: QSPI handle 00791 * @retval None 00792 */ 00793 static uint8_t QSPI_AutoPollingMemReady(QSPI_HandleTypeDef *hqspi, uint32_t Timeout) 00794 { 00795 QSPI_CommandTypeDef s_command; 00796 QSPI_AutoPollingTypeDef s_config; 00797 00798 /* Configure automatic polling mode to wait for memory ready */ 00799 s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; 00800 s_command.Instruction = READ_STATUS_REG_CMD; 00801 s_command.AddressMode = QSPI_ADDRESS_NONE; 00802 s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; 00803 s_command.DataMode = QSPI_DATA_1_LINE; 00804 s_command.DummyCycles = 0; 00805 s_command.DdrMode = QSPI_DDR_MODE_DISABLE; 00806 s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; 00807 s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; 00808 00809 s_config.Match = 0; 00810 s_config.Mask = N25Q512A_SR_WIP; 00811 s_config.MatchMode = QSPI_MATCH_MODE_AND; 00812 s_config.StatusBytesSize = 1; 00813 s_config.Interval = 0x10; 00814 s_config.AutomaticStop = QSPI_AUTOMATIC_STOP_ENABLE; 00815 00816 if (HAL_QSPI_AutoPolling(hqspi, &s_command, &s_config, Timeout) != HAL_OK) 00817 { 00818 return QSPI_ERROR; 00819 } 00820 00821 return QSPI_OK; 00822 } 00823 /** 00824 * @} 00825 */ 00826 00827 /** 00828 * @} 00829 */ 00830 00831 /** 00832 * @} 00833 */ 00834 00835 /** 00836 * @} 00837 */ 00838 00839 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 00840
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