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WeActSTM32F411CEU6 uart problem

Posted: Fri Jul 10, 2020 11:24 pm
by dhylands
@davef posted about the WEACT and UART1, and then the post was deleted.

The mpconfigboard.h file for the WEACT sets up the REPL to mirror on UART1: ... .h#L35-L36

You'll want to comment out those 2 lines and rebuild the firmware.

In your sample code, you'll also want to pass in a baud rate when you initialize the UART, otherwise, it just returns the currently configured UART object, and since it wasn't configured yet, it won't work the way you expect.

With those 2 changes, I see the AT commands on the pin A9 (UART1_TX)

Re: WeActSTM32F411CEU6 uart problem

Posted: Sat Jul 11, 2020 12:13 am
by davef

Thanks for that. I deleted it because I thought I had found the original problem but I got that wrong!

I have also tried UART2 and initialising it, shouldn't that work without rebuilding?

Code: Select all

led = pyb.LED(1)
uart = machine.UART(2)
uart.init(baudrate=9600, bits=8, parity=None, stop=1)

while True: