2016-03-21 04:32 AM
Hi,
I'm a newby in firmware programming, therefore sorry for my simple question. I need to send some data to the PC via serial communication from a board equipped with an STM32F4. I chose to set up the communication through the USART2 interface on PINS 5 and 6. What I'm experiencing is as follows: - after programming the board with the ST-LINK V2 going to debug mode the communication on the RS232 is ok: I can see just what I'm expecting. - if while debugging I disconnect the ST-LINK V2, the program stop sending characters to the PC - if I power on the board with no ST-LINK V2 connected, I receive strange characters on the PC, as if the RS232 communication format were not set correctly. Any suggestion? Thanks in advance, regards #stm32 #stm32f4 #usart2016-03-21 05:28 AM
Check your grounds.
JW