/*
  Wokwi Custom XOR chip example
*/


void setup() {}

void loop() {}


xor-chip-example.ino

diagram.json

// Wokwi Custom Chip - For information and examples see:
// https://docs.wokwi.com/chips-api/getting-started
//
// SPDX-License-Identifier: MIT
// Copyright (C) 2022 59jag / wokwi.com

#include "wokwi-api.h"
#include <stdio.h>
#include <stdlib.h>
 uint32_t cpt=0;
typedef struct {
  pin_t pin_Clk;
  pin_t pin_En;
  pin_t pin_out;
  uint32_t timebase_attr;
 uint32_t serial_us;
} chip_state_t;
static void chip_timer_event(void *user_data);

   
  

static void update_output(chip_state_t *chip) {
  uint32_t a = pin_read(chip->pin_Clk);
  uint32_t b = pin_read(chip->pin_En);
  cpt++;
  uint32_t p = (cpt/10000000) & 0b01;
  printf (" Val numerique =  %d %d \n",cpt,p);
  pin_write(chip->pin_out, p);
}

static void chip_pin_change(void *user_data, pin_t pin, uint32_t value) {
  update_output((chip_state_t*)user_data);
}

void chip_init() {
  chip_state_t *chip = malloc(sizeof(chip_state_t));
  chip->pin_Clk = pin_init("Clk", INPUT);
  chip->pin_En = pin_init("En", INPUT);
  chip->pin_out = pin_init("OUT", OUTPUT);
  chip->timebase_attr = attr_init("timebase", 1000);
  const pin_watch_config_t watch_config = {
    .edge = BOTH,
    .pin_change = chip_pin_change,
    .user_data = chip,
  };
  chip->serial_us = attr_read(chip->timebase_attr);
  pin_watch(chip->pin_Clk, &watch_config);
  pin_watch(chip->pin_En, &watch_config);
  update_output(chip);
}
