2019-07-20 01:10发布
Levi123456 发表于 2019-6-18 09:11 还有一个附带的问题,就是每次编译的时候的.sct文件是自动重新生成的吗?要是我想修改.sct文件,修改了后重 ...
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int main(void)
{
SCB_EnableICache();
SCB_EnableDCache();
HAL_Init()
SystemClock_Config();
MX_DCMI_Init();
HAL_DCMI_Start_DMA(&hdcmi, DCMI_MODE_CONTINUOUS, (uint32_t)yuvbuf, 640);
while(1)
{
delay_cnt(1000);
}
}
/**************************************************/
static void MX_DCMI_Init(void)
{
hdcmi.Instance = DCMI;
hdcmi.Init.SynchroMode = DCMI_SYNCHRO_HARDWARE;
hdcmi.Init.PCKPolarity = DCMI_PCKPOLARITY_RISING;
hdcmi.Init.VSPolarity = DCMI_VSPOLARITY_HIGH;
hdcmi.Init.HSPolarity = DCMI_HSPOLARITY_HIGH;
hdcmi.Init.CaptureRate = DCMI_CR_ALL_FRAME;
hdcmi.Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
// hdcmi.Init.JPEGMode = DCMI_JPEG_DISABLE;
// hdcmi.Init.ByteSelectMode = DCMI_BSM_ALL;
// hdcmi.Init.ByteSelectStart = DCMI_OEBS_ODD;
// hdcmi.Init.LineSelectMode = DCMI_LSM_ALL;
// hdcmi.Init.LineSelectStart = DCMI_OELS_ODD;
if (HAL_DCMI_Init(&hdcmi) != HAL_OK)
{
Error_Handler();
}
}
/*********************************************/
void HAL_DCMI_MspInit(DCMI_HandleTypeDef* hdcmi)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(hdcmi->Instance==DCMI)
{
/* USER CODE BEGIN DCMI_MspInit 0 */
/* USER CODE END DCMI_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_DCMI_CLK_ENABLE();
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOI_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
/**DCMI GPIO Configuration
PE1 ------> DCMI_D3
PE0 ------> DCMI_D2
PE4 ------> DCMI_D4
PI7 ------> DCMI_D7
PI6 ------> DCMI_D6
PI5 ------> DCMI_VSYNC
PI4 ------> DCMI_D5
PA9 ------> DCMI_D0
PC7 ------> DCMI_D1
PH8 ------> DCMI_HSYNC
PA6 ------> DCMI_PIXCLK
*/
GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_0|GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_6|GPIO_PIN_5|GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
/* DCMI DMA Init */
__HAL_RCC_DMA1_CLK_ENABLE();
/* DCMI Init */
hdma_dcmi.Instance = DMA1_Stream0;
hdma_dcmi.Init.Request = DMA_REQUEST_DCMI;
hdma_dcmi.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_dcmi.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_dcmi.Init.MemInc = DMA_MINC_ENABLE;
hdma_dcmi.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
hdma_dcmi.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
hdma_dcmi.Init.Mode = DMA_CIRCULAR;//--DMA_NORMAL;
hdma_dcmi.Init.Priority = DMA_PRIORITY_HIGH;//--DMA_PRIORITY_LOW;
hdma_dcmi.Init.FIFOMode = DMA_FIFOMODE_DISABLE;//--DMA_FIFOMODE_ENABLE;
hdma_dcmi.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_HALFFULL;//DMA_FIFO_THRESHOLD_FULL;
hdma_dcmi.Init.MemBurst = DMA_MBURST_SINGLE;
hdma_dcmi.Init.PeriphBurst = DMA_PBURST_SINGLE;
__HAL_LINKDMA(hdcmi,DMA_Handle,hdma_dcmi);
/* DCMI interrupt Init */
HAL_NVIC_SetPriority(DCMI_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(DCMI_IRQn);
/* USER CODE BEGIN DCMI_MspInit 1 */
/* DMA interrupt init */
/* DMA1_Stream0_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Stream0_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(DMA1_Stream0_IRQn);
if (HAL_DMA_Init(&hdma_dcmi) != HAL_OK)//++
{
Error_Handler();
}
/* USER CODE END DCMI_MspInit 1 */
}
}
结果DCMI中断总是进 Overflow interrupt management
/******************************************************/
void HAL_DCMI_IRQHandler(DCMI_HandleTypeDef *hdcmi)
{
uint32_t isr_value = READ_REG(hdcmi->Instance->MISR);
/* Synchronization error interrupt management *******************************/
if((isr_value & DCMI_FLAG_ERRRI) == DCMI_FLAG_ERRRI)
{
/* Clear the Synchronization error flag */
__HAL_DCMI_CLEAR_FLAG(hdcmi, DCMI_FLAG_ERRRI);
/* Update error code */
hdcmi->ErrorCode |= HAL_DCMI_ERROR_SYNC;
/* Change DCMI state */
hdcmi->State = HAL_DCMI_STATE_ERROR;
/* Set the synchronization error callback */
hdcmi->DMA_Handle->XferAbortCallback = DCMI_DMAError;
/* Abort the DMA Transfer */
(void)HAL_DMA_Abort_IT(hdcmi->DMA_Handle);
}
/* Overflow interrupt management ********************************************/
if((isr_value & DCMI_FLAG_OVRRI) == DCMI_FLAG_OVRRI)
{
/* Clear the Overflow flag */
__HAL_DCMI_CLEAR_FLAG(hdcmi, DCMI_FLAG_OVRRI);
/* Update error code */
hdcmi->ErrorCode |= HAL_DCMI_ERROR_OVR;
/* Change DCMI state */
hdcmi->State = HAL_DCMI_STATE_ERROR;
/* Set the overflow callback */
hdcmi->DMA_Handle->XferAbortCallback = DCMI_DMAError;
/* Abort the DMA Transfer */
(void)HAL_DMA_Abort_IT(hdcmi->DMA_Handle);
}
......
}
而DCMI的DMA中断总是进Transfer Error Interrupt management
/********************************************************/
void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma)
{
uint32_t tmpisr_dma, tmpisr_bdma;
uint32_t ccr_reg;
__IO uint32_t count = 0U;
uint32_t timeout = SystemCoreClock / 9600U;
/* calculate DMA base and stream number */
DMA_Base_Registers *regs_dma = (DMA_Base_Registers *)hdma->StreamBaseAddress;
BDMA_Base_Registers *regs_bdma = (BDMA_Base_Registers *)hdma->StreamBaseAddress;
tmpisr_dma = regs_dma->ISR;
tmpisr_bdma = regs_bdma->ISR;
if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
{
/* Transfer Error Interrupt management ***************************************/
if ((tmpisr_dma & (DMA_FLAG_TEIF0_4 << (hdma->StreamIndex & 0x1FU))) != 0U)
{
if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TE) != 0U)
{
/* Disable the transfer error interrupt */
((DMA_Stream_TypeDef *)hdma->Instance)->CR &= ~(DMA_IT_TE);
/* Clear the transfer error flag */
regs_dma->IFCR = DMA_FLAG_TEIF0_4 << (hdma->StreamIndex & 0x1FU);
/* Update error code */
hdma->ErrorCode |= HAL_DMA_ERROR_TE;
}
}
....
}
不知道是哪里出了问题
不是,.sct是你自己编写的。不会每次都改,得你自己改。
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