NUCELO_WL55 port assignment problem

[davefes]

Error in my simple_rxtx.py:

# PA6 = RF_TXEN, PA7 = RF_RXEN
PA6 = Pin('PA6', Pin.OUT)
PA7 = Pin('PA7', Pin.OUT)

Traceback (most recent call last):
  File "main.py", line 15, in <module>
  File "simple_rxtx.py", line 10, in <module>
ValueError: Pin(PA6) doesn't exist
MicroPython v1.22.0-preview.208.gb5449b0f0.dirty on 2023-12-08; NUCLEO-WL55 with STM32WL55JCI7

Thinking that because mpconfigboard.h for the NUCLEO_WL55 uses PA6 and PA7 for a SPI bus I commented-out the lines:

// SPI buses, do NOT use this bus on the E77-400M22S
//#define MICROPY_HW_SPI1_NSS                     (pin_A4)
//#define MICROPY_HW_SPI1_SCK                     (pin_A5)
//#define MICROPY_HW_SPI1_MISO                    (pin_A6)
//#define MICROPY_HW_SPI1_MOSI                    (pin_A7)

but still get the error. What else do I need to change?

Thanks.

[andrewleech]

I'm not sure why it's not finding the pin by name, it's listed in https://github.com/micropython/micropython/blob/master/ports/stm32/boards/NUCLEO_WL55/pins.csv

You can always access the pins directly like: Pin.cpu.A6

[davefes]

Thank you, that works.

I had looked at all the files in /micropython/ports/stm32/boards/NUCLEO_WL55