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STM32F107RC USART2 TX Problem

Question asked by primenko.konstantin on May 27, 2014
Latest reply on May 27, 2014 by waclawek.jan
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?