The problem is as follows, when transferring data via USART, without using DMA, the data is sent (in an attachment). When I start using DMA transfer, no data is sent (in an attachment). Maybe I am doing wrong DMA settings in the USART configurator? I...

I'm still beginner to programming STM32. I haven't been able to configure SPI for two weeks and don't understand what I am doing wrong. I dug up all the forums looking for an answer, but nothing helped to solve my problem. I checked the MOSI and SCK ...