Dma双缓冲默认开启循环模式 Dma开启时需要确保相对应的标志位清零 仅在使能指针递增模式时允许突发模式 如...
#define DMA_IT_TCIF0 ((uint32_t)0x10008020) #define DMA_IT_FEIF1 ((uint32_t)0x90000040) #define DMA_IT_DMEIF1 ((uint32_t)0x10001100) #define DMA_IT_TEIF1 ((uint32_t)0x10002200) #define DMA_IT_HTIF1 ((uint32_t)0x10004400) #define DMA_IT_TCIF1 ((uint32_t)0x10008800...
DMA_ClearITPendingBit(DMA_RX_Stream, DMA_IT_TCIF5); //清除全部中断标志 //转换可操作BUF tmp ...
链接：https://pan.baidu.com/s/1SO34uS3flsdE8MdL4HHU0g?pwd=802v 提取码：802v Ymodem_STM32...
DMA_ClearITPendingBit(DMA2_Stream5, DMA_IT_TCIF5); // 片选拉高,数据发送完毕 GPIO_SetBits(GPIOA, GPIO_Pin_15); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. SPI 接收DMA 配置 #define RECEIVE_SIZE 800 // 接收大小 uint8_t RX_Buff[RECEIVE_SIZE]; // 接收到缓存 ...
DMA_ClearITPendingBit(DMA1_Stream5,DMA_IT_TCIF5);//清DMA传输完成标准//DMA_Cmd(DMAx_Streamx,DISABLE);if(DMA1_Stream5->CR&(1<<19)) { rx_flag=2;//说明DMA当前在Memory1中,主函数中通过判断该标志,将Memory0中的数据拷贝到temp数组中}else{ ...
=RESET)//检查DMA传输完成中断 DMA_IT_TCIF7{DMA_ClearITPendingBit(Uart_Tx_DMAStream,DMA_IT_TCIF7);//printf("dma tx ok\r\n");if(uartDMATCSemaphore!=NULL){//释放二值信号量xSemaphoreGiveFromISR(uartDMATCSemaphore,&xHigherPriorityTaskWoken);//释放DMA传输完成二值信号量}portYIELD_FROM_ISR(x...
DMA_ClearFlag(DMA2_Stream7,DMA_FLAG_TCIF7);//DMA ������������жϱ�־��� } } void DMA2_Stream5_IRQHandler(void) { if(DMA_GetFlagStatus(DMA2_Stream5,DMA_FLAG_TCIF5)!=RESET)//��������ж� ...
voidDMA2_Stream7_IRQHandler(void){//清除标志if(DMA_GetFlagStatus(DMA2_Stream7,DMA_FLAG_TCIF7)!=RESET)//等待DMA2_Steam7传输完成{DMA_ClearFlag(DMA2_Stream7,DMA_FLAG_TCIF7);//清除DMA2_Steam7传输完成标志DMA_Cmd(DMA2_Stream7,DISABLE);//关闭使能USART_ITConfig(USART1,USART_IT_TC,ENABLE);...
voidDMA2_Stream5_IRQHandler(void){// DMA 发送完成if(DMA_GetITStatus(DMA2_Stream5,DMA_IT_TCIF5)){// 清除DMA发送完成标志DMA_ClearITPendingBit(DMA2_Stream5,DMA_IT_TCIF5);// 片选拉高,数据发送完毕GPIO_SetBits(GPIOA,GPIO_Pin_15);}} ...