Library Description

The library includes function sets the volume for the selected channel, uses two variables or one volume variable. The user has a function for mute/unmute sounds, default settings and function for clears all registers.

Key functions:

• void samltouch_parser(char *dataIn, samltouch_state_T *state) - The function parses the response it receives

Examples description

The application is composed of the three sections :

• System Initialization - Initializes UART used for the communcation with SAML Touch module and UART used for infromation logging.
• Application Initialization - Initializes driver init and timer init.
• Application Task - running in parallel core state machine. Check that the button 1 or button 2 or the active slider is pressed. If it detects that the buttons 1 or 2 are pressed, it logs a button detection message. If it detects that the slider is active, it logs a message that the slider is active and its current position is 0-255.

void applicationTask()
{
// CORE STATE MACHINE
    samltouch_process();
    
    if(timerCounter > 100)
    {
        if(SAML_Touch.button2 == 1)
        {
            mikrobus_logWrite( "Button 2 is pressed.", _LOG_LINE );
        }
        else if(SAML_Touch.button1 == 1)
        {
            mikrobus_logWrite( "Button 1 is pressed.", _LOG_LINE );
        }
        timerCounter = 0;
    }
    
    if(SAML_Touch.sw_state == 1)
    {
        mikrobus_logWrite( "Slider is active.", _LOG_LINE );
        if(SAML_Touch.sw_pos != 0)
        {
            mikrobus_logWrite( "Slider position is  ", _LOG_TEXT );
            IntToStr(SAML_Touch.sw_pos, demoText);
            mikrobus_logWrite( demoText, _LOG_LINE );
        }
    }
}

Additional Functions :

All additional functions such as timer initialization and default handler.

Other mikroE Libraries used in the example:

• String
• 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.