Library Description

This library holds functions that can be used to write data to the device's input shift register, or to set operation mode output channel and level.

Key functions:

• void dac6_write_data ( uint16_t wr_data ) - Sends 16-bit data to the device's input shift register.
• void dac6_set_output ( uint8_t chan, uint8_t op_mod, uint16_t set_out ) - Function is used to set operation mode output channel and level.

Examples description

The application is composed of three sections :

• System Initialization - Initializes GPIO, SPI and LOG structures.
• Application Initialization - Initalizes SPI driver.
• Application Task - (code snippet) This example shows capabilities of DAC 6 click by changeing output values from 0 to the maximum output range on all four channels. Output voltage is calculated by using the equation : Vout = Vrefin * (set_out / 4095).

void application_task ( )
{
    for ( n_cnt = 0; n_cnt < 4096; n_cnt += 315 )
    {
        v_out = dac6_set_output ( DAC6_CHANNEL_A, 
                                  DAC6_WRITE_ALL_AND_UPDATE, 
                                  DAC6_V_REF_2048, 
                                  n_cnt );
        
        FloatToStr( v_out, log_text );
        mikrobus_logWrite( " VOUT ~ ", _LOG_TEXT );
        mikrobus_logWrite( log_text, _LOG_TEXT );
        mikrobus_logWrite( " mV", _LOG_LINE );
        mikrobus_logWrite( "--------------------", _LOG_LINE );
        Delay_ms( 5000 );
    }
    
    Delay_ms( 5000 );
}

Other mikroE Libraries used in the example:

• SPI
• UART
• Conversions

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.