Library Description

Initializes and defines SPI driver, defines driver's function that writes a 12-bit value in DAC, and that causes the output voltage to be set at the determined value. This function checks PG (INT) pin state that shows the result of comparing the output voltage with its steady-state voltage. It also enables or disables the output voltage. Check the documentation for more details.

Key functions

void mic33153_writeDAC(const uint16_t valueDAC)- Function writes 12-bit value to DAC

void mic33153_enableOut(uint8_t state)- Function enables or disables output voltage

uint8_t mic33153_checkPowerGood(void)- Function checks state of PG (INT) pin

Examples Description

The demo application is composed of three sections:

• System Initialization - Initializes peripherals and pins.
• Application Initialization - Initializes click driver.
• Application Task - Activates the output voltage of the device, writes DAC value which sets output voltage to 2V, and checks PG (Power Good) pin which compares the output voltage with its steady state voltage. MIC33153 click is tested on load with a current output value of 20mA.

void applicationTask()
{
    uint8_t powerGood;

    mic33153_enableOut(_MIC33153_OUT_ENABLE);

    mic33153_writeDAC(_MIC33153_VOLTAGE_2000MV);

    powerGood = mic33153_checkPowerGood();

    if(powerGood && i)
    {
        mikrobus_logWrite("Output voltage is above 92% of its steady state voltage.", _LOG_LINE);
        i = 0;
    }else if((powerGood == 0) && (i == 0))
    {
        mikrobus_logWrite("Output voltage is below 86% of its steady state voltage.", _LOG_LINE);
        i = 1;
    }

    Delay_ms(2000);
}

Additional notes and information

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.