2021-05-20 09:23 AM
i am using stm32h743 microcontroller ,in this i am working on the uart in dma mode for receiver i am using circular mode and for transmitter i am using normal mode. the communication is working in the first time , when i am trying to transmit the data next time i am facing the issue "HAL_UART_STATE_BUSY_TX" after that i can't transmit any data. please help me to solve the issue would be appreciated.
2021-05-20 01:21 PM
Read out and check UART registers content, compare to working case.
JW