Library Description

Library contains function for checking state of INT pin.

Key functions:

• uint8_t buttonplay_intGet( void ) - returns state of INT pin.

Examples description

The application is composed of the three sections :

• System Initialization - Initializes LOG, PWM pin as OUTPUT and INT pin as input.
• Application Initialization - Initializes GPIO driver, initializes pwm, calculates max duty cycle value and starts PWM output.
• Application Task - Drives PWM pin output values from ZERO to MAX and back to ZERO continuously.

void applicationTask( )
{
    for (i = 0; i < dutyRatio; i += 1)
    {
        buttonplay_pwmSetDuty( i );
        Delay_ms(3);
    }

    for (i = dutyRatio; i > 0; i -= 1)
    {
        buttonplay_pwmSetDuty( i );
        Delay_ms(3);
    }
}

Other mikroE Libraries used in the example:

• PWM
• UART

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 clickor 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.