初始化 DMA 配置:
/* Config DMA */
stcDmaChCfg.u32DataWidth = DMA_DATAWIDTH_32BIT;
stcDmaChCfg.u32BlockSize = DMA_BLKSIZE;
stcDmaChCfg.u32TransferCnt = DMA_TRNCNT;
stcDmaChCfg.u32SrcAddr = (uint32_t)(&u32SrcBuf[0]);
stcDmaChCfg.u32DesAddr = (uint32_t)(&u32DstBuf[0]);
stcDmaChCfg.u32SrcInc = DMA_SRCADDRINC_INC;
stcDmaChCfg.u32DesInc = DMA_DESADDRINC_INC;
DMA_ChannelCfg(DMA_CH, &stcDmaChCfg);
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