stm32F722ze, ValueError: Pin(PC13) doesn't exist

[ghost]

import pyb

def main():
#configure pb0 as an output pin push-pull
green_led = pyb.Pin('D33', mode =pyb.Pin.OUT_PP)

#configure PC13 as input pin with pull-down
button = pyb.Pin('PC13', mode = pyb.Pin.IN, pull = pyb.Pin.PULL_DOWN)



while True:
    
    if button.value() == 0:
        green_led.value(1)
    else:
        green_led.value(0)

main()

I am using stm32f722ze and trying to write a program to control led using push button but I always says value error. With the help of user manual figure out the arduino mapping for PC0 but cannot find for PC13. Is there any way I will be able to execute this program. I am using Thonny IDE. Thanks

[davefes]

What dev board is your STM32 on? I use the WeAct BlackPill STM32F411 and PC13 is used as the anti-tamper pin. I failed when I accidentally tried to use it for something else.

[ghost]

I am using STM NUCLEO-F722ZE

[davefes]

Actually the WeAct board has the blue LED on PC13 ... maybe that is what prevented me from using it as a GPIO.

[davefes]

Check your schematic to see if they use PC13 for some on-board reason.