------------------------------------------------------------------------------ README ------------------------------------------------------------------------------ This example program echoes data sent in on USART1 on the ST STM32F429IDISCOVERY eval board. Uses interrupts for that purpose. The sending is done in a nonblocking way. Board connections: ------------------ PA9 (USART1_TX) TTL serial output (38400,8,N,1) PA10 (USART1_RX) TTL serial input (38400,8,N,1) Notes: ------ You can connect the USART to the stlink by closing the SB11 and SB15 jumpers.