Library Description

The library covers all the necessary functions to control the VREG click board. The library performs the communication with the device via SPI driver by writing to registers and by reading from registers. The library has the function for sets DAC value and gets ADC value.

Key functions:

• uint16_t vreg_getADC( uint8_t channel ) - Get ADC value function.
• void vreg_setOutVoltage( uint16_t valueDAC ) - Set output voltage function.
• void vreg_startMeasuring() - Start the measuring function.

Examples description

The application is composed of three sections:

• System Initialization - Initializes GPIO, SPI and LOG structures, sets AN, CS and PWM pins as outputs.
• Application Initialization -  Initialization driver enables - SPI, set output voltage and start to write log.
• Application Task - (code snippet) This is an example which demonstrates the use of VREG click board. VREG click communicates with the device via SPI driver set DAC value and get ADC value. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on usb uart changes for every 1 sec.

void applicationTask() 
{
    chReg = vreg_getADC( _VREG_CHANNEL_0 );
    WordToStr( chReg, logText );
    mikrobus_logWrite( " CH Reg  : ", _LOG_TEXT );
    mikrobus_logWrite( logText, _LOG_LINE );
    Delay_10ms();

    chIn = vreg_getADC( _VREG_CHANNEL_1 );
    WordToStr( chIn, logText );
    mikrobus_logWrite( " CH In   : ", _LOG_TEXT );
    mikrobus_logWrite( logText, _LOG_LINE );
    Delay_10ms();

    chOut = vreg_getADC( _VREG_CHANNEL_2 );
    WordToStr( chOut, logText );
    mikrobus_logWrite( " CH Out  : ", _LOG_TEXT );
    mikrobus_logWrite( logText, _LOG_LINE );
    mikrobus_logWrite( "-----------------", _LOG_LINE );
    Delay_1sec();
}        

Other mikroE Libraries used in the example:

• SPI
• UART​
• Conversion

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