Raspberry pi - Pulse edge triggered by STM32 board

I will show you in 4 simple steps.

Step1 - setup of 2 second pulse:

Please refer to my previous video for setup of 2 second period pulse using stm32F407G.

https://youtu.be/DJSr8ssFJLQ

Pulse generated:

Step2 - Prepare of python code for raspberry pi:

Type the code at python IDE raspberry pi. I am using edge triggered method and detect the rising edge of signal sent by STM32. I am assign  the detection to pin 40 of raspberry pi.

Python Code:

import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BOARD)

GPIO.setwarnings(False)

GPIO.setup(40,GPIO.IN)

num=0

while(1):

    

    GPIO.wait_for_edge(40,GPIO.RISING)

    print(str(num))

    num=num+1

      

                                      

Step3 - Board connection STM32 and raspberry pi:

Common ground is needed to synchronize the signal between STM32 & raspberry pi.

STM32      raspberry pi 

PE9 -->       pin40

GND-->      GND

                                      

Step4 - Done:  

      

Each triggered python program increased by 1. e.g. 1,2.3.......