So I am setting up the DMA for USART1 tx on a STM32F4 on each transfer, and busy wait for it to be done (no interrupt) by polling TC. DMA2_Stream7->NDTR = len;
DMA2_Stream7->PAR = (uint32_t)&(USART1->DR);
DMA2_Stream7->M0AR = (uint32_t)str...
Wow, thanks a lot!I clearly must be blind, or have some kind of deficiency ; I have read AN4031 several times without seeing that part. :grinning_face: Now it works just as it is supposed to.Cheers, Micael
