Portenta Machine Control Stepper Driver

[patman99]

I'm having trouble using the Portenta machine control to drive my stepper motors. Is there any way to write to a microstep driver and write it? I've tried every variation of the code, including avoiding the <Arduino_MachineControl.h> Library to try and make it run faster. Here is my code so far:

#include <Arduino.h> // Only needed by https://platformio.org/


void setup() {
   pinMode(PI_6, OUTPUT);  // Direction
   pinMode(PH_9, OUTPUT);  // Step
   digitalWrite(PI_6, LOW);  // pick a direction
}

void loop() {


    digitalWrite(PH_9, HIGH); 
    delayMicroseconds(200); 

    digitalWrite(PH_9, LOW);
    delayMicroseconds(200);       

}

Extremely simple to run it and it won't work. Do you guys have any suggestions?

[rreignier]

Could you measure the actual width of the pulses with an oscilloscope?
The digitalWrite() function might be too long to execute with the Arduino + mbed + ST HAL overhead.
Using ST HAL directly (HAL_GPIO_WritePin()) might be faster.