21.1.1 STM32MP157 DMA简介 1. MDMA和双口DMA STM32MP157内部有3个DMA控制器：1个高速主DMA（...
__HAL_LINKDMA(huart,hdmatx,hdma_usart1_tx); //使能中断 /* DMA interrupt init */ /* DMA1_Stream0_IRQn interrupt configuration */ HAL_NVIC_SetPriority(DMA1_Stream5_IRQn, 0, 0); HAL_NVIC_EnableIRQ(DMA1_Stream5_IRQn); /* DMA1_Stream1_IRQn interrupt configuration */ HAL_NVIC_SetPri...
#define UART1_RX_DMA_IRQ DMA2_Stream2_IRQn #endif #if defined(BSP_UART1_TX_USING_DMA) && !defined(UART1_TX_DMA_INSTANCE) #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...
DMA1_Stream0->CR |= (0x1 << 0);// enable IRQ NVIC_EnableIRQ(DMA1_Stream0_IRQn);printf(...
NVIC_IRQChannel = USART2_IRQn; //串口2中断通道 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1; //抢占优先级1 NVIC_InitStructure.NVIC_IRQChannelSubPriority =3; //子优先级3 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能 NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化...
Channel7_IRQChannel;和 NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel7_IRQn;外，没看出啥 ...
void DMA2_Stream5_IRQHandler(void) { /* USER CODE BEGIN DMA2_Stream5_IRQn 0 */ /* USER CODE END DMA2_Stream5_IRQn 0 */ HAL_DMA_IRQHandler(&hdma_usart3_rx); /* USER CODE BEGIN DMA2_Stream5_IRQn 1 */ /* USER CODE END DMA2_Stream5_IRQn 1 */ ...
static void MX_USART1_UART_Init(void);static void MX_SDIO_SD_Init(void);/* USER CODE BEGIN ...
NVIC_EnableIRQ(DMA1_Stream5_IRQn);//开启ITM3中断 /HAL_NVIC_SetPriority(DMA1_Stream3_IRQn,...
3.3. Stream-to-Memory DMA BBB Memory Map The S2M DMA BBB memory map provides the address offsets of all the locations within the BBB. The following streaming DMA AFU registers reside at offset 0x200 in the MMIO address space. Table 6. Stream-to-Memory DMA BBB Memory Map Byte Address...