Hello,I came across a behavior that I don't understand. In the board's datasheet, I can clearly see alternate function for pin PA3 is USART2_RX but once set, it doesn't work. When I set USART_RX on pin PA15, it works just fine. Can someone explain wh...

Hello,When I try to read USART status register (RXNE bit), the execution stucks upon while loop which means no data have been readen:  char uart2_read(void) { while(!(USART2->ISR & USART_ISR_RXNE)){} return USART2->RDR; } I think I initialized eve...