main.c

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/**
 * @file main.c
 * @ingroup mcp48x2
 * @author Jason Duffy
 * @date 1st March 2022
 * @brief Example main routine demonstrating the mcp48x2 DAC driver. 
 * @bug No known bugs. 
 */
 
#include <util/delay.h>
#include "mcp48x2_dac.h"
 
// Edit these values to modify the demo behaviour. 
#define DELAY_TIME_1            1000
 
#define CHANNEL_A_VOLTAGE_1     1000
#define CHANNEL_B_VOLTAGE_1     2000
 
#define CHANNEL_A_VOLTAGE_2     3300
#define CHANNEL_B_VOLTAGE_2     1650
 
 
/**
 * Instantiation of config object for DAC. 
 */
dac_config_t dac_config =
{
    .model = mcp4812,
    .sync_manually = false,
 
    .channel_a.gain_low = false,
    .channel_a.active = true,
    .channel_a.level = 0,
 
    .channel_b.gain_low = false,
    .channel_b.active = true,
    .channel_b.level = 0,
};
 
/**
 * Main routine of application. 
 */
int main()
{
    // Initialisation of DAC is called here. 
    init_dac(&dac_config);
 
    // Loop forever.
    while (1)
    {   
        // Set initial voltage levels. 
        dac_set_voltage(DAC_CHANNEL_A, CHANNEL_A_VOLTAGE_1);
        dac_set_voltage(DAC_CHANNEL_B, CHANNEL_B_VOLTAGE_1);
 
        // Wait a short time. 
        _delay_ms(DELAY_TIME_1);
 
        // Set secondary voltage levels. 
        dac_set_voltage(DAC_CHANNEL_A, CHANNEL_A_VOLTAGE_2);
        dac_set_voltage(DAC_CHANNEL_B, CHANNEL_B_VOLTAGE_2);
 
        // Wait a short time. 
        _delay_ms(DELAY_TIME_1);
    }
    
    return 0;
}