#define UART1_DMA_TX_IRQHandler DMA2_Stream7_IRQHandler #define UART1_TX_DMA_RCC RCC_AHB1ENR_DMA2EN #define UART1_TX_DMA_INSTANCE DMA2_Stream7 #define UART1_TX_DMA_CHANNEL DMA_CHANNEL_4 #define UART1_TX_DMA_IRQ DMA2_Stream7_IRQn 之后在 stm32_control 中会调用 stm32_dma_config()...
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c:void DMA2_Stream0_IRQHandler(void){ if(DMA_GetITStatus(DMA2_Stream0, DMA_IT_TCIF0))...
}while(((DMA_Stream_TypeDef *)huart->hdmarx->Instance)->CR & DMA_SxCR_EN); ((DMA_Stream_TypeDef *)huart->hdmarx->Instance)->PAR = (uint32_t)&huart->Instance->RDR; ((DMA_Stream_TypeDef *)huart->hdmarx->Instance)->M0AR = (uint32_t)DstAddress; ((DMA_Stream_TypeDef *)hua...
从而配置DMA，实现不同的功能。同时，该接口可以输出dma_it[0:7]的中断信号到NVIC（对于M4内核，中断...
printf("DMA1_Stream0 %u rn", (DMA1_Stream0->CR & 0x1));} 中断例程：void TIM2_IRQHandler...
DMA_IRQHandler(&HAL_DMA_USART2_RX_Handle);}voidDMA1_Stream5_IRQHandler(void){HAL_DMA_IRQHandler...
send 和 receive 为什么用的都是 rx buf?
DMA1_Stream4->CR&=~(1<<4); //关闭传输完成中断(这里不用中断送数据)I2S2ext_RX_DMA_Init...
DMA_IRQHandler(&HAL_DMA_USART2_RX_Handle);}voidDMA1_Stream5_IRQHandler(void){HAL_DMA_IRQHandler...