Debug MEGA2560 cant see variable values when break point is reached

1

Hi, i get the debugger to run on my mega2560. it reaches the breakpoint. i break at a instruction i++ (declared as int). i can not see the value of i when the program breaks.
What must i do to see the variable values.

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2

Are you using

debug_build_flags = -O0 -ggdb3 -g3

in your platformio.ini to disable optimization? If yes, you might be running into

3

My ini file looks like this

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this is my simple sketch
#include <Arduino.h>
#include “avr8-stub.h”
// the setup function runs once when you press reset or power the board
int i = 0;
void setup() {
debug_init();
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
i++;
digitalWrite(LED_BUILTIN, 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
delay(1000); // wait for a second
}

i want want to see the value of i