audioamp11

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AudioAMP 11 Click

AudioAMP 11 Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : Nenad Filipovic
• Date : Jan 2023.
• Type : I2C type

Software Support

Example Description

This library contains API for the AudioAMP 11 Click driver. This demo application shows use of a AudioAMP 11 Click board™.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.AudioAMP11

Example Key Functions

• audioamp11_cfg_setup Config Object Initialization function.

void audioamp11_cfg_setup ( audioamp11_cfg_t *cfg );

• audioamp11_init Initialization function.

err_t audioamp11_init ( audioamp11_t *ctx, audioamp11_cfg_t *cfg );

• audioamp11_default_cfg Click Default Configuration function.

err_t audioamp11_default_cfg ( audioamp11_t *ctx );

• audioamp11_enable_device AudioAMP 11 enable device function.

void audioamp11_enable_device ( audioamp11_t *ctx );

• audioamp11_check_gain AudioAMP 11 check gain function.

err_t audioamp11_check_gain ( audioamp11_t *ctx, uint8_t *gain );

• audioamp11_set_output_volume_level AudioAMP 11 set output volume level function.

err_t audioamp11_set_output_volume_level ( audioamp11_t *ctx, uint8_t volume_data );

Application Init

Initialization of I2C module and log UART. After driver initialization the app set default settings, performs power-up sequence, sets the volume level to 0.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    audioamp11_cfg_t audioamp11_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    audioamp11_cfg_setup( &audioamp11_cfg );
    AUDIOAMP11_MAP_MIKROBUS( audioamp11_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == audioamp11_init( &audioamp11, &audioamp11_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( AUDIOAMP11_ERROR == audioamp11_default_cfg ( &audioamp11 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
    log_printf( &logger, "----------------------\r\n" );
    Delay_ms ( 100 );
}

Application Task

This example demonstrates the use of the AudioAMP 11 Click board™. If GAIN SEL switches are set to 12dB, the app performs circles switching the volume from -20.5 dB to 12 dB. If the GAIN SEL switches are different, the app sets the volume level to 31 (maximum). Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void ) 
{
    uint8_t gain_level = 0;
    uint8_t volume_level = 0;
    
    audioamp11_check_gain( &audioamp11, &gain_level );
    log_printf( &logger, " Gain set to %d dB\r\n", AUDIOAMP11_CALC_GAIN_CONFIG( gain_level ) );
    
    if ( AUDIOAMP11_GAINDEC_12dB == gain_level )
    {
        float volume_table[ 32 ] = { OUTPUT_VOLUME_12dB };
        audioamp11_set_output_volume_level( &audioamp11, vol_ctrl );
        Delay_ms ( 100 );
        
        if ( vol_ctrl > AUDIOAMP11_GS_12dB_VOLCTRL_12dB )
        {
            vol_ctrl--;
        }
        else
        {
            vol_ctrl = AUDIOAMP11_GS_12dB_VOLCTRL_m20_5dB;
        }
        
        audioamp11_get_output_volume_level( &audioamp11, &volume_level );
        log_printf( &logger, " Volume set to  %.1f dB\r\n", volume_table[ volume_level ] );
    }
    else
    {
        audioamp11_set_output_volume_level( &audioamp11, AUDIOAMP11_VOLUME_LEVEL_31 );
        audioamp11_get_output_volume_level( &audioamp11, &volume_level );        
    }
    
    log_printf( &logger, " Volume Level %d: ", ( uint16_t ) ( AUDIOAMP11_VOLUME_LEVEL_0 - volume_level ) );
    for ( uint8_t n_cnt = 0; n_cnt < ( AUDIOAMP11_VOLUME_LEVEL_0 - volume_level ); n_cnt++ )
    {
        log_printf( &logger, "|" );    
    }
    log_printf( &logger, "\r\n----------------------\r\n" );
    Delay_ms ( 1000 );
}

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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