/**
  * @file PCF8591_test.cpp
  * @brief 对自己写的库进行测试，使用PCF8591
  * @author 梅花
  * @data 2024年10月9日22:33:00
  * @version 0.1
  * @copyright 梅花
  */

#include "SMBus.h"
#include <iostream>
long address;
auto bus = SMBus(1);

namespace test{
void setup(int addr)
{
    bus.set_pec(1);
    bus.set_pec(0);
    address = addr;
}

long read(int chn)
{
    switch(chn)
    {
    case 0:
        bus.write_byte(address,0x40);
        break;
    case 1:
        bus.write_byte(address,0x41);
        break;
    case 2:
        bus.write_byte(address,0x42);
        break;
    case 3:
        bus.write_byte(address,0x43);
        break;
    }
	bus.read_byte(address); // dummy read to start conversion
	return bus.read_byte(address);
}
    
void write(int val)
{
	// print temp to see on terminal else comment out
	bus.write_byte_data(address, 0x40, val);
}
    
} // namespace test

int main(void)
{
    using namespace std;
    test::setup(0x48);
    while(1)
    {
        cout 
            << "AIN0 = " << test::read(0) 
            << '\t' 
            << "AIN1 = " << test::read(1) 
            << endl;
        auto tmp = test::read(0);
		tmp = tmp*(255-125)/255+125;
		test::write(tmp);
        sleep(1);
    }
    return 0;
}