Library Description

The library covers all the necessary functions to control MCP1664 Click board. IR Beacon Click communicates with the target board via PWM module. This library contains drivers for enabling or disabling PWM.

Key functions:

• void mcp1664_enablePwm() -  Function enables the PWM by seting PWM pin.
• void mcp1664_disablePwm() - Function disables the PWm by clearing PWM pin.

Examples description

The application is composed of the three sections :

• System Initialization - Initializes GPIO structure, sets PWM pin as output.
• Application Initialization - Enables GPIO and PWM, sets the frequency and duty cycle and enables PWM.
• Application Task - (code snippet) This is a example which demonstrates the use of MCP1664 Click board. It shows how to enable the device and gradualy increase the duty cycle.

void applicationTask( )
{
    mcp1664_enablePwm();
    for ( dutyCycle = 0; dutyCycle < 8000; dutyCycle += 500 )
    {
        mcp1664_pwmSetDuty( dutyCycle );
        mikrobus_logWrite( "  Duty cycle is :  ", _LOG_TEXT );
        IntToStr( dutyCycle, logTxt );
        mikrobus_logWrite( logTxt, _LOG_LINE );
        mikrobus_logWrite( "------------------", _LOG_LINE );
        Delay_ms( 1000 );
    }
    Delay_ms( 3000 );
}

Other mikroE Libraries used in the example:

• PWM
• 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.