Diferent behavor between website and vscode extension (rp2040 - timer)

[rafaelcorsi]

Target: Rasp Pico 1 sdk
Example project: https://wokwi.com/projects/430756341381772289

Code:

When I run it on the webpage I got the timers been canceled and created as expected, but when I run on the vs code extension, it won't create a new timer. To solve the problem I need to add a sleep between cancel and add a new timer.

        cancel_repeating_timer(&timer_b);
+       sleep_ms(10);
        add_repeating_timer_ms(300, timer_b_callback, NULL, &timer_b);
                 sleep_ms(1000);

Example code:

#include <stdio.h>
#include "pico/stdlib.h"

const int LED_PIN_R = 4;

volatile int cnt = 0;

bool timer_b_callback(repeating_timer_t* rt) {
    printf("timer %d\n", cnt++);
    return true; // keep repeating
}

int main() {
    stdio_init_all();
    gpio_init(LED_PIN_R);
    gpio_set_dir(LED_PIN_R, GPIO_OUT);

    repeating_timer_t timer_b;

    add_repeating_timer_ms(100, timer_b_callback, NULL, &timer_b);
    sleep_ms(1000);

    while (true) {
      printf("Canceled timer\n");
        cancel_repeating_timer(&timer_b);
        add_repeating_timer_ms(300, timer_b_callback, NULL, &timer_b);
                 sleep_ms(1000);

    }
}

online it creates the new timer:

on vscode it get stuck

[rafaelcorsi]

Other tests:

1. I run the uf2 generated by my build process (rasp extension) on a real hardware, and it worked
2. I download the uf2 from wokwi web-page and run it on the vscode extension, and it worked as the web-apge, strange!

[urish]

Thanks for reporting!

This is likely to happen because of a difference in the Pi Pico SDK version.

Wokwi uses version 2.1.1: https://github.com/wokwi/wokwi-builders/blob/ce226374a33854b1c1f7ffe69b87ff04e7d5d4dc/pico-sdk/Dockerfile#L21

Which version do you have installed locally?

[rafaelcorsi]

Hello @urish sorry for the delay, it works fine on the SDK 2.1.1

Is there something that I can do to fix this? Students use the first version they see on the pico extension, so I can't control this...

[urish]

Which SDK version exactly does this reproduce with?

I need to be able to reproduce locally in order to be able to investigate