void dma_channel_reset(uint32_t dma, uint8_t channel)
{
/* Disable channel and reset config bits. */
DMA_CCR(dma, channel) = 0;
/* Reset data transfer number. */
DMA_CNDTR(dma, channel) = 0;
/* Reset peripheral address. */
DMA_CPAR(dma, channel) = 0;
/* Reset memory address. */
DMA_CMAR(dma, channel) = 0;
/* Reset interrupt flags. */
DMA_IFCR(dma) |= DMA_IFCR_CIF(channel);
}
void dma_set_memory_address(uint32_t dma, uint8_t channel, uint32_t address)
{
if (!(DMA_CCR(dma, channel) & DMA_CCR_EN)) {
DMA_CMAR(dma, channel) = (uint32_t) address;
}
}
void dma_set_memory_address(u32 dma, u8 channel, u32 address)
{
if (!(DMA_CCR(dma, channel) & DMA_CCR_EN))
DMA_CMAR(dma, channel) = (u32) address;
}