STM32F107RC USART2 TX Problem

primenko_k · ‎2014-05-27

Posted on May 27, 2014 at 13:53

I use an STM32F107RC board and use USART2 interface. But USART2 Tx doesn't send first four bytes of each data transaction. I have tried both INTERRUPT and DMA mode.

What is the problem?

#dma #usart #stm32

Tesla DeLorean · ‎2014-05-27

Posted on May 27, 2014 at 15:37

Hard to say, perhaps your code is broken.

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waclawek.jan · ‎2014-05-27

Posted on May 27, 2014 at 19:14

Or the hardware.

I once had an RS232 cable with broken ground. The symptoms were very confusing, far from a safe ''not work''....

JW