driver_mcp4725_basic.c

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#include "driver_mcp4725_basic.h"
 
static mcp4725_handle_t gs_handle;        

uint8_t mcp4725_basic_init(mcp4725_address_t addr_pin)
{
    uint8_t res;
    
    /* link interface function */
    DRIVER_MCP4725_LINK_INIT(&gs_handle, mcp4725_handle_t);
    DRIVER_MCP4725_LINK_IIC_INIT(&gs_handle, mcp4725_interface_iic_init);
    DRIVER_MCP4725_LINK_IIC_DEINIT(&gs_handle, mcp4725_interface_iic_deinit);
    DRIVER_MCP4725_LINK_IIC_READ_COMMAND(&gs_handle, mcp4725_interface_iic_read_cmd);
    DRIVER_MCP4725_LINK_IIC_WRITE_COMMAND(&gs_handle, mcp4725_interface_iic_write_cmd);
    DRIVER_MCP4725_LINK_DELAY_MS(&gs_handle, mcp4725_interface_delay_ms);
    DRIVER_MCP4725_LINK_DEBUG_PRINT(&gs_handle, mcp4725_interface_debug_print);
    
    /* set iic addr pin */
    res = mcp4725_set_addr_pin(&gs_handle, addr_pin);
    if (res != 0)
    {
        mcp4725_interface_debug_print("mcp4725: set addr pin failed.\n");
        
        return 1;
    }
    
    /* mcp4725 init */
    res = mcp4725_init(&gs_handle);
    if (res != 0)
    {
        mcp4725_interface_debug_print("mcp4725: init failed.\n");
        
        return 1;
    }
    
    /* set power mode */
    res = mcp4725_set_power_mode(&gs_handle, MCP4725_BASIC_DEFAULT_POWER_DOWN_MODE);
    if (res != 0)
    {
        mcp4725_interface_debug_print("mcp4725: set power mode failed.\n");
        (void)mcp4725_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set mode */
    res = mcp4725_set_mode(&gs_handle, MCP4725_BASIC_DEFAULT_MODE);
    if (res != 0)
    {
        mcp4725_interface_debug_print("mcp4725: set mode failed.\n");
        (void)mcp4725_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set reference voltage */
    res = mcp4725_set_reference_voltage(&gs_handle, MCP4725_BASIC_DEFAULT_REFERENCE_VOLTAGE);
    if (res != 0)
    {
        mcp4725_interface_debug_print("mcp4725: set reference voltage failed.\n");
        (void)mcp4725_deinit(&gs_handle);
        
        return 1;
    }
    
    return 0;
}

uint8_t mcp4725_basic_write(float voltage_v)
{
    uint16_t value;
    uint8_t res; 
    
    /* convert voltage to register */
    res = mcp4725_convert_to_register(&gs_handle, voltage_v, (uint16_t *)&value);
    if (res != 0)
    {
        return 1;
    }
    
    /* write voltage */
    if (mcp4725_write(&gs_handle, (uint16_t)value) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

uint8_t mcp4725_basic_deinit(void)
{
    /* close mcp4725 */
    if (mcp4725_deinit(&gs_handle) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}