According to the output window, it seems like I upload a sketch now, but it don’t seem to work.
I got no clue what may be wrong. Can it be that some of the basic functions do not work like
pinMode, digitalWrite, delay ?
I looked in the documentation for the board regarding the on board LED, called LD2. It states:
LD2 USER
This green LED is a user LED connected to STM32G4 I/O PA5 (SB6 ON) corresponding to the ARDUINO® D13. To light LED LD2, a high logic state “1” must be written in the corresponding GPIO PA5. A transistor is used to drive the LED LD2. LD2 consumption does not impact the VDD STM32G4 power measurement, since LD2 is isolated from it.
So instead of LED_BUILTIN, I tried to use D13. But it did not change anything. This is then the blink sketch:
/*
Blink
Turns an LED on for one second, then off for one second, repeatedly.
Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO
it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to
the correct LED pin independent of which board is used.
If you want to know what pin the on-board LED is connected to on your Arduino
model, check the Technical Specs of your board at:
https://docs.arduino.cc/hardware/
modified 8 May 2014
by Scott Fitzgerald
modified 2 Sep 2016
by Arturo Guadalupi
modified 8 Sep 2016
by Colby Newman
This example code is in the public domain.
https://docs.arduino.cc/built-in-examples/basics/Blink/
*/
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin LED_BUILTIN as an output.
//pinMode(LED_BUILTIN, OUTPUT);
pinMode(D13, OUTPUT);
//digitalWrite(D13, HIGH); // turn the LED on (HIGH is the voltage level)
}
// the loop function runs over and over again forever
void loop() {
//digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
digitalWrite(D13, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
//digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
digitalWrite(D13, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
The LD2 LED remains off. I also tried to press the reset button.
When I powered the board first time, perhaps a blink program was in the MPU already ab fabric, because this LED did blink. So the LED do work. When I uploaded this blink sketch, the LED became off all the time.
What do you think I should do to debug this case?
