本程序实现了串口USART1利用DMA进行接收和发送数据，stm32接收10个字符，然后在发送回pc 本程序基于...
DMA2_Channel3->CMAR=(u32)srcAdd;//DMA1, 内存地址 DMA2_Channel3->CNDTR=len; //DMA2,...
11 DMA1_Channel2->CCR &= ~( 1 << 0 ); //关闭DMA通道2 12 13 DMA1_Channel2->CPAR = SPI1_DR_Addr; //外设地址 14 DMA1_Channel2->CMAR = (uint32_t)buff; //mem地址 15 DMA1_Channel2->CNDTR = len ; //传输长度 16 DMA1_Channel2->CCR = (0 << 14) | // 非存储器到存...
voidBsp_UART1_DMA_RecvData(DMA_Channel_TypeDef*dam_chx, u32 pBuf, u16 length) {//DMA channel x memory address registerdam_chx->CMAR =pBuf;//DMA channel x number of data registerdam_chx->CNDTR =length;//Enables or disables the specified DMA Channeln interrupts.DMA_Cmd(dam_chx, ENABLE...
CHECK_RESTRICTION(CHECK_DMA_CHANNEL(Channel)); /*--- 获取DMA_CMAR寄存器CMAR位 ---*/ tmpreg = DMAx->CMAR[Channel]; return tmpreg; } /** * 描述 获取DMA通道的当前剩余数据量。* 输入 DMAx: 指向DMA内存结构的指针,取值为DMA0_SFR和DMA1_SFR。* Channel: DMA通道选择,...
{//DMA channel x memory address registerdam_chx->CMAR =pBuf;//DMA channel x number of data registerdam_chx->CNDTR =length;//Enables or disables the specified DMA Channeln interrupts.DMA_Cmd(dam_chx, ENABLE); } 9.編寫MM32F0140 UART1 DMA傳送資料函式 ...