// Custom chips playground
// See https://link.wokwi.com/custom-chips-alpha for more info

void setup() {
}

void loop() {
}


timer-chip.ino

diagram.json

Timer Chip

timer.chip.json

#include "wokwi-api.h"
#include <stdio.h>
#include <stdlib.h>

DEFINE_PIN(VCC);
DEFINE_PIN(GND);
DEFINE_PIN(TIMER0);
DEFINE_PIN(TIMER1);
DEFINE_PIN(TIMER2);
DEFINE_PIN(TIMER3);

typedef enum
{
  PIN_TIMER0,
  PIN_TIMER1,
  PIN_TIMER2,
  PIN_TIMER3,
  MAX_PINS
} Pins;

typedef struct
{
  pin_t pins[MAX_PINS];
  uint32_t timer0_id;
  uint32_t timer1_id;
  uint32_t timer2_id;
  uint32_t timer3_id;
  uint8_t led0_state;
  uint8_t led1_state;
  uint8_t led2_state;
  uint8_t led3_state;
} chip_state_t;

chip_state_t* EXPORT(chip_init)(void)
{
  printf("\nchip_init() begin\n");
  chip_state_t *chip = calloc(1, sizeof(chip_state_t));
  chip->pins[PIN_TIMER0] = pin_init("TIMER0", OUTPUT);
  chip->pins[PIN_TIMER1] = pin_init("TIMER1", OUTPUT);
  chip->pins[PIN_TIMER2] = pin_init("TIMER2", OUTPUT);
  chip->pins[PIN_TIMER3] = pin_init("TIMER3", OUTPUT);
  chip->timer0_id = timer_init();
  chip->timer1_id = timer_init();
  chip->timer2_id = timer_init();
  chip->timer3_id = timer_init();
  printf("\ntimer_start before\n");
  printf("\tchip->timer0_id: %d\n", chip->timer0_id);
  printf("\tchip->timer1_id: %d\n", chip->timer1_id);
  printf("\tchip->timer2_id: %d\n", chip->timer2_id);
  printf("\tchip->timer3_id: %d\n", chip->timer3_id);
  timer_start(chip->timer0_id,  500000, true);
  timer_start(chip->timer1_id, 1000000, true);
  timer_start(chip->timer2_id, 1500000, true);
  timer_start(chip->timer3_id, 2000000, true);
  printf("timer_start after\n");
  printf("\tchip->timer0_id: %d\n", chip->timer0_id);
  printf("\tchip->timer1_id: %d\n", chip->timer1_id);
  printf("\tchip->timer2_id: %d\n", chip->timer2_id);
  printf("\tchip->timer3_id: %d\n", chip->timer3_id);
  printf("chip_init() end\n");
  return chip;
}

void EXPORT(chip_timer_event)(chip_state_t *chip, uint32_t timer_id)
{
  printf("\nchip_timer_event() begin\n");
  printf("\tparameter timer_id: %d\n", timer_id);
  printf("\tchip->timer0_id: %d\n", chip->timer0_id);
  printf("\tchip->timer1_id: %d\n", chip->timer1_id);
  printf("\tchip->timer2_id: %d\n", chip->timer2_id);
  printf("\tchip->timer3_id: %d\n", chip->timer3_id);
  // printf("\tchip->led0_state: %d\n", chip->led0_state);
  if (timer_id == chip->timer0_id)
  {
    printf("\ttimer0 matches\n");
    digital_write(chip->pins[PIN_TIMER0], chip->led0_state);
    chip->led0_state = !chip->led0_state;
  }
  if (timer_id == chip->timer1_id)
  {
    printf("\ttimer1 matches\n");
    digital_write(chip->pins[PIN_TIMER1], chip->led1_state);
    chip->led1_state = !chip->led1_state;
  }
  if (timer_id == chip->timer2_id)
  {
    printf("\ttimer2 matches\n");
    digital_write(chip->pins[PIN_TIMER2], chip->led2_state);
    chip->led2_state = !chip->led2_state;
  }
  if (timer_id == chip->timer3_id)
  {
    printf("\ttimer3 matches\n");
    digital_write(chip->pins[PIN_TIMER3], chip->led3_state);
    chip->led3_state = !chip->led3_state;
  }
  printf("chip_timer_event() end\n");
}
