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STM32F030C8T6 DMA USART CHANNEL REMAPPING QUESTION

Howard Chang
Associate

Hi everyone:

As a title,I use dma Usart Rx for DMA1 Channel 3,but at the same time, I also use Spi Tx for DMA.So , I must remap Usart Rx from DMA1 Channel 3 to DMA1 Channel 5.I try to use this function SYSCFG_DMAChannelRemapConfig(SYSCFG_CFGR1_USART1RX_DMA_RMP,ENABLE); and I correct the channel 3 to channel 5,but it didn't work.

Could any one knows how to use DMA Channel remapping, and please provide details, thanks.

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