I can confirm that the following code gives the same output. Now, here's the interesting part. Using the debugger, I can confirm that pulling Pin1 low puts me into the Pin2 GPIO ISR. Why? If I comment out enabling the Pin2 GPIO ISR, like this:
Then I can confirm that pulling Pin1 low puts me into the Pin1 ISR. Hmm.
Code:
#include <stdio.h>#include "pico/stdlib.h"#include "hardware/watchdog.h"#include "fw-info.h"// The LED is connected to GPIO 25#define LED_PIN 25#define PIN1 18#define PIN2 19bool flag1 = false; bool flag2 = false; void gpio_callback_pin1() { flag1 = true; }void gpio_callback_pin2() { flag2 = true; }// Main (runs on core 0)int main() { stdio_init_all(); // Initialize the LED pin gpio_init(LED_PIN); gpio_set_dir(LED_PIN, GPIO_OUT); sleep_ms(2000); printf("Watchdog scratch 0 is: %d\n", watchdog_hw->scratch[0]); printf("Watchdog scratch 2 is: %d\n", watchdog_hw->scratch[2]); gpio_init(PIN1) ; gpio_pull_up(PIN1) ; gpio_init(PIN2) ; gpio_pull_up(PIN2) ; // Configure GPIO interrupt gpio_set_irq_enabled_with_callback(PIN1, GPIO_IRQ_EDGE_FALL, true, &gpio_callback_pin1); gpio_set_irq_enabled_with_callback(PIN2, GPIO_IRQ_EDGE_FALL, true, &gpio_callback_pin2); // Loop while (true) { gpio_put(LED_PIN, 0) ; sleep_ms(250) ; gpio_put(LED_PIN, 1) ; sleep_ms(1000) ; if(flag1){ hw_clear_bits(&watchdog_hw->ctrl, WATCHDOG_CTRL_ENABLE_BITS); watchdog_hw->scratch[0]=666 ; watchdog_reboot(0, 0, 0) ; while (1) { tight_loop_contents(); asm(""); } } if(flag2){ hw_clear_bits(&watchdog_hw->ctrl, WATCHDOG_CTRL_ENABLE_BITS); watchdog_hw->scratch[2]=0xBEEF ; watchdog_reboot(0, 0, 0) ; while (1) { tight_loop_contents(); asm(""); } } }}Code:
#include <stdio.h>#include "pico/stdlib.h"#include "hardware/watchdog.h"#include "fw-info.h"// The LED is connected to GPIO 25#define LED_PIN 25#define PIN1 18#define PIN2 19bool flag1 = false; bool flag2 = false; void gpio_callback_pin1() { flag1 = true; }void gpio_callback_pin2() { flag2 = true; }// Main (runs on core 0)int main() { stdio_init_all(); // Initialize the LED pin gpio_init(LED_PIN); gpio_set_dir(LED_PIN, GPIO_OUT); sleep_ms(2000); printf("Watchdog scratch 0 is: %d\n", watchdog_hw->scratch[0]); printf("Watchdog scratch 2 is: %d\n", watchdog_hw->scratch[2]); gpio_init(PIN1) ; gpio_pull_up(PIN1) ; gpio_init(PIN2) ; gpio_pull_up(PIN2) ; // Configure GPIO interrupt gpio_set_irq_enabled_with_callback(PIN1, GPIO_IRQ_EDGE_FALL, true, &gpio_callback_pin1); //gpio_set_irq_enabled_with_callback(PIN2, GPIO_IRQ_EDGE_FALL, true, &gpio_callback_pin2); // Loop while (true) { gpio_put(LED_PIN, 0) ; sleep_ms(250) ; gpio_put(LED_PIN, 1) ; sleep_ms(1000) ; if(flag1){ hw_clear_bits(&watchdog_hw->ctrl, WATCHDOG_CTRL_ENABLE_BITS); watchdog_hw->scratch[0]=666 ; watchdog_reboot(0, 0, 0) ; while (1) { tight_loop_contents(); asm(""); } } if(flag2){ hw_clear_bits(&watchdog_hw->ctrl, WATCHDOG_CTRL_ENABLE_BITS); watchdog_hw->scratch[2]=0xBEEF ; watchdog_reboot(0, 0, 0) ; while (1) { tight_loop_contents(); asm(""); } } }}Statistics: Posted by Emotion8490 — Fri Apr 05, 2024 2:31 am