我使用STM32F407VTG6控制器并尝试使用DMA从SPI接收数据.然后我想在DMA完全传输中断上处理数据.但是当发生完全传输中断时,我看到TEIF(传输错误中断标志)已设置.此DMA无法启动.这是我的代码的一部分:
static void DmaInit()
{
DMA_InitTypeDef dma;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
// DMA for Rx
dma.DMA_Channel = DMA_Channel_3;
dma.DMA_PeripheralBaseAddr = (uint32_t)&SPI1->DR;
dma.DMA_Memory0BaseAddr = 0; // will be set later
dma.DMA_DIR = DMA_DIR_PeripheralToMemory;
dma.DMA_BufferSize = 1; // will be set later
dma.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
dma.DMA_MemoryInc = DMA_MemoryInc_Enable;
dma.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
dma.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
dma.DMA_Mode = DMA_Mode_Normal;
dma.DMA_Priority = DMA_Priority_High;
dma.DMA_FIFOMode = DMA_FIFOMode_Disable;
dma.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
dma.DMA_MemoryBurst = DMA_MemoryBurst_Single;
dma.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_DeInit(DMA2_Stream2);
DMA_Init(DMA2_Stream2, &dma);
// Enable DMA Interrupt on complete transfer
NVIC_EnableIRQ(DMA2_Stream2_IRQn);
DMA_ITConfig(DMA2_Stream2, …