I want to do UART by connecting USB to TTL converter(PN-USBTTL-FT, FTDI FT232RL) to Tx and Rx of the board pin without using the USB port of the debugger part of STM32F4xx.
The main code is as follows:
uint8_t a = 'a';
while (1)
{
HAL_UART_Transmit(&huart2, &a, 1, 10);
HAL_Delay(1000);
}
The debugging board's USB(download port) can receive "aaaaa ..." input every second, but it cannot receive any value from the Tx and Rx pins assigned to CubeMX.
What should I do?
