STM32_DMA3_CFG_SET_DT
if (!(chan->config_set & STM32_DMA3_CFG_SET_DT)) {
chan->config_set |= STM32_DMA3_CFG_SET_DT;
#define STM32_DMA3_CFG_SET_BOTH (STM32_DMA3_CFG_SET_DT | STM32_DMA3_CFG_SET_DMA)