Library Description

The library covers all the necessary functions to control StereoAmp Click board. A library has drivers for set volume, enable and disable amplifier function, set mute mode function, set the fault detection control function, set the mode function, etc.

Key functions:

• void stereoamp_writeData( uint8_t chAddress, uint8_t regAddress, uint8_t writeData ) - Generic write the byte of data function.
• void stereoamp_setVolume( uint8_t volume ) - Set the volume function.
• void stereoamp_enableDiagnostic() - Enable the diagnostic function.

Examples description

The application is composed of three sections:

• System Initialization - Initializes GPIO, I2C, and LOG structures set AN and INT pins as input and start to write log.
• Application Initialization -  Initialization driver enables - I2C, set power on, set volume to min., enable fault,  enable diagnostic and also write log.
• Application Task - (code snippet) This is an example which demonstrates the use of StereoAmp Click board. This examples first set volume level 20 of 31 ( gain: 1,5 dB ) for 10 seconds, after that, we increase the volume to level 10 ( gain: -13,5 dB ) for the next 10 seconds. Results are being sent to the Usart Terminal where you can track their changes.

void applicationTask() 
{
    mikrobus_logWrite( "      Gain 1,5 dB      ", _LOG_LINE );
    stereoamp_setVolume( _STEREOAMP_GAIN_1_5dB );
    Delay_ms( 10000 );
    mikrobus_logWrite( "-----------------------", _LOG_LINE );
    
    mikrobus_logWrite( "     Gain -13,5 dB     ", _LOG_LINE );
    stereoamp_setVolume( _STEREOAMP_GAIN_NEG_13_5dB );
    Delay_ms( 10000 );
    mikrobus_logWrite( "-----------------------", _LOG_LINE );
}       

Other mikroE Libraries used in the example:

• I2C
• UART​

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