I have uploaded the 5.0.4 uart2_async keil project. I built it and then ran a debug session and hit run.
I am simply running in a while(1) loop:
uart2_print_string("A").
I have probed the pin P0.4 (port 0, pin 4) which is the default in the program with only one time it was actually printing something.
I then changed it to Pin 0.2 (port 0, pin 2) and I see nothing.
我也试着改变波特率to 9K6 instead of 115K2.
Any idea what I may be doing wrong? I a reading it on terraterm with the correct settings using a separate USB cable (prolific)
Device:
Hi Krixen,
As far as i understand you ve changed in the user_periph_setup.h file from UART2_TX_PIN / GPIO_PIN_4 to UART2_TX_PIN / GPIO_PIN_2, by doing that you have changed the pin that is used as a UART from P04 to P02 so you have to change the wire and connect from P02 to the UART RX.
Thanks MT_dialog