void MX_FSMC_Init(void)
{
FSMC_NORSRAM_TimingTypeDef Timing;
/** Perform the SRAM1 memory initialization sequence
*/
hsram1.Instance = FSMC_NORSRAM_DEVICE;
hsram1.Extended = FSMC_NORSRAM_EXTENDED_DEVICE;
/* hsram1.Init */
hsram1.Init.NSBank = FSMC_NORSRAM_BANK1;
hsram1.Init.DataAddressMux = FSMC_DATA_ADDRESS_MUX_ENABLE;
hsram1.Init.MemoryType = FSMC_MEMORY_TYPE_PSRAM;
hsram1.Init.MemoryDataWidth = FSMC_NORSRAM_MEM_BUS_WIDTH_8;
hsram1.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE;
hsram1.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW;
hsram1.Init.WrapMode = FSMC_WRAP_MODE_DISABLE;
hsram1.Init.WaitSignalActive = FSMC_WAIT_TIMING_BEFORE_WS;
hsram1.Init.WriteOperation = FSMC_WRITE_OPERATION_ENABLE;
hsram1.Init.WaitSignal = FSMC_WAIT_SIGNAL_DISABLE;
hsram1.Init.ExtendedMode = FSMC_EXTENDED_MODE_DISABLE;
hsram1.Init.AsynchronousWait = FSMC_ASYNCHRONOUS_WAIT_ENABLE;
hsram1.Init.WriteBurst = FSMC_WRITE_BURST_DISABLE;
/* Timing */
Timing.AddressSetupTime = 1;
Timing.AddressHoldTime = 1;
Timing.DataSetupTime = 5;
Timing.BusTurnAroundDuration = 0;
Timing.CLKDivision = 16;
Timing.DataLatency = 17;
Timing.AccessMode = FSMC_ACCESS_MODE_A;
/* ExtTiming */
if (HAL_SRAM_Init(&hsram1, &Timing, NULL) != HAL_OK)
{
Error_Handler();
}
}
static uint32_t FSMC_Initialized = 0;
static void HAL_FSMC_MspInit(void){
/* USER CODE BEGIN FSMC_MspInit 0 */
/* USER CODE END FSMC_MspInit 0 */
GPIO_InitTypeDef GPIO_InitStruct;
if (FSMC_Initialized) {
return;
}
FSMC_Initialized = 1;
/* Peripheral clock enable */
__HAL_RCC_FSMC_CLK_ENABLE();
/** FSMC GPIO Configuration
PE7 ------> FSMC_DA4
PE8 ------> FSMC_DA5
PE9 ------> FSMC_DA6
PE10 ------> FSMC_DA7
PD14 ------> FSMC_DA0
PD15 ------> FSMC_DA1
PD0 ------> FSMC_DA2
PD1 ------> FSMC_DA3
PD4 ------> FSMC_NOE
PD5 ------> FSMC_NWE
PD6 ------> FSMC_NWAIT
PD7 ------> FSMC_NE1
PB7 ------> FSMC_NL
*/
/* GPIO_InitStruct */
GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/* GPIO_InitStruct */
GPIO_InitStruct.Pin = GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1
|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* GPIO_InitStruct */
GPIO_InitStruct.Pin = GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* GPIO_InitStruct */
GPIO_InitStruct.Pin = GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN FSMC_MspInit 1 */
/* USER CODE END FSMC_MspInit 1 */
}
void HAL_SRAM_MspInit(SRAM_HandleTypeDef* sramHandle){
/* USER CODE BEGIN SRAM_MspInit 0 */
/* USER CODE END SRAM_MspInit 0 */
HAL_FSMC_MspInit();
/* USER CODE BEGIN SRAM_MspInit 1 */
/* USER CODE END SRAM_MspInit 1 */
}
static uint32_t FSMC_DeInitialized = 0;
static void HAL_FSMC_MspDeInit(void){
/* USER CODE BEGIN FSMC_MspDeInit 0 */
/* USER CODE END FSMC_MspDeInit 0 */
if (FSMC_DeInitialized) {
return;
}
FSMC_DeInitialized = 1;
/* Peripheral clock enable */
__HAL_RCC_FSMC_CLK_DISABLE();
/** FSMC GPIO Configuration
PE7 ------> FSMC_DA4
PE8 ------> FSMC_DA5
PE9 ------> FSMC_DA6
PE10 ------> FSMC_DA7
PD14 ------> FSMC_DA0
PD15 ------> FSMC_DA1
PD0 ------> FSMC_DA2
PD1 ------> FSMC_DA3
PD4 ------> FSMC_NOE
PD5 ------> FSMC_NWE
PD6 ------> FSMC_NWAIT
PD7 ------> FSMC_NE1
PB7 ------> FSMC_NL
*/
HAL_GPIO_DeInit(GPIOE, GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10);
HAL_GPIO_DeInit(GPIOD, GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1
|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_7);
/* USER CODE BEGIN FSMC_MspDeInit 1 */
/* USER CODE END FSMC_MspDeInit 1 */
}
void HAL_SRAM_MspDeInit(SRAM_HandleTypeDef* sramHandle){
/* USER CODE BEGIN SRAM_MspDeInit 0 */
/* USER CODE END SRAM_MspDeInit 0 */
HAL_FSMC_MspDeInit();
/* USER CODE BEGIN SRAM_MspDeInit 1 */
/* USER CODE END SRAM_MspDeInit 1 */
}
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 总结一下，CUBE中，底层和引脚有关的初始化都是在 HAL_XXX_MspInit() 中完成的 越看越迷糊。。。。谁有cub的fsmc的例程 wofei1314 发表于 2015-10-23 15:27
再请教一下，是不是直接用我面贴的代码就无需初始化GPIO了？
刚才搜了一下你说的那个函数，确实找到了初 ...
楼主，我还是没发现HAL_SRAM_Init（）被谁调用了，
能麻烦讲解下吗
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