Discussion about Portenta X8. How to use the multiple PWM pins in Portenta X8 and sending data from Yocto Linux to the STM32 side

Official Hardware Portenta Family Portenta X8
1

Discussion about Portenta X8.
How to use the multiple PWM pins in Portenta X8 and sending data from Yocto Linux to the STM32 side.

#define PWM0 PC_7
#define PWM1 PA_9
#define PWM2 PA_10
void setup()
{
  pinMode(PWM0, OUTPUT);
  pinMode(PWM1, OUTPUT);
  pinMode(PWM2, OUTPUT);
}
void loop()
{
  for(int i=0;i<255;i++)
  {
    analogWrite(PWM0,i);
    analogWrite(PWM1,i);
    analogWrite(PWM2,i);
    delay(50);
  }
  for(int i=255;i>0;i--)
  {
    analogWrite(PWM0,i);
    analogWrite(PWM1,i);
    analogWrite(PWM2,i);
    delay(10);
  }
}

I tried to upload the program. The PWM pins doesn't work properly.

I am also facing issues with the Serial Monitor as well the SerialRPC. I recently flashed the STM32 with firmware 0.0.4-next-02b3427-20241106.In this version, RPC works very well while the Serial Monitor shows data but not in proper format.
When I flashed the newer version to 0.0.5 to the STM32. The Serial monitor works well but the RPC has gone.

These are the issues that I am facing currently:

  • Sending multiple PWM signals from the STM32.
  • Serial Monitor and RPC. Which version of the STM32 firmware and Linux image I should flash to get the best performance.
  • Sending data from Linux side to Arduino side.

Further assistance would be nice.

2

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