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mikroSDK Library

StereoAmp Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.17

mikroSDK Library: 2.0.0.0

Category: Amplifier

Downloaded: 263 times

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License: MIT license  

This is an example which demonstrates the use of StereoAmp Click board - stereo amplifier and is ideal for battery operated devices or as a lab amplifier.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


StereoAmp Click

This is an example which demonstrates the use of StereoAmp Click board - stereo amplifier and is ideal for battery operated devices or as a lab amplifier.

stereoamp_click.png

Click Product page


Click library

  • Author : Mihajlo Djordjevic
  • Date : Dec 2019.
  • Type : I2C type

Software Support

We provide a library for the StereoAmp Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for StereoAmp Click driver.

Standard key functions :

  • Config Object Initialization function.

    void stereoamp_cfg_setup ( stereoamp_cfg_t *cfg );

  • Initialization function.

    STEREOAMP_RETVAL stereoamp_init ( stereoamp_t ctx, stereoamp_cfg_t cfg );

  • Click Default Configuration function.

    void stereoamp_default_cfg ( stereoamp_t *ctx );

Example key functions :

  • This function set the power On of both channels by write to the Mode Control register address of LM48100Q-Q1 chip on StereoAmp Click board.

    void stereoamp_set_power_on ( stereoamp_t *ctx );

  • This function set the volume of both channels to the Volume Control register address of LM48100Q-Q1 chip on StereoAmp Click board.

    void stereoamp_set_volume ( stereoamp_t *ctx, uint8_t volume );

Examples Description

This example shows how to initialize amplifiers and set volume control registers on the fly.

The demo application is composed of two sections :

Application Init

Application Init perfroms Logger and Click initialization.


void application_init ( void )
{
    log_cfg_t log_cfg;
    stereoamp_cfg_t cfg;

    /** 
     * 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_printf( &logger, "--------------------------\r\n" );
    log_printf( &logger, "     Application  Init\r\n" );
    Delay_ms ( 500 );

    //  Click initialization.

    stereoamp_cfg_setup( &cfg );
    STEREOAMP_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    stereoamp_init( &stereoamp, &cfg );

    log_printf( &logger, "--------------------------\r\n" );
    log_printf( &logger, " ---  StereoAmp Click --- \r\n" );
    log_printf( &logger, "--------------------------\r\n" );
    Delay_ms ( 1000 );

    stereoamp_default_cfg( &stereoamp );
    Delay_ms ( 1000 );

    log_printf( &logger, "         Power  On        \r\n" );
    stereoamp_set_power_on( &stereoamp );
    Delay_ms ( 1000 );
    log_printf( &logger, "--------------------------\r\n" );

    log_printf( &logger, "     Set Volume: -80dB    \r\n" );
    stereoamp_set_volume( &stereoamp, STEREOAMP_GAIN_NEG_80dB );
    Delay_ms ( 1000 );
    log_printf( &logger, "--------------------------\r\n" );

    log_printf( &logger, "       Enable Fault       \r\n" );
    stereoamp_enable_fault( &stereoamp );
    Delay_ms ( 1000 );
    log_printf( &logger, "--------------------------\r\n" );

    log_printf( &logger, "     Enable Diagnostic    \r\n" );
    stereoamp_enable_diagnostic( &stereoamp );
    Delay_ms ( 1000 );
    log_printf( &logger, "--------------------------\r\n" );

    log_printf( &logger, " -- Initialization done --\r\n" );
    log_printf( &logger, "--------------------------\r\n" );
    Delay_ms ( 500 );

    log_printf( &logger, "--------------------------\r\n" );
    log_printf( &logger, " -----  Play  Music ----- \r\n" );
    log_printf( &logger, "--------------------------\r\n" );
    Delay_ms ( 500 );
}

Application Task

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 UART Terminal where you can track their changes.


void application_task ( void )
{
    log_printf( &logger, "        Gain 1.5 dB        \r\n" );
    stereoamp_set_volume( &stereoamp, STEREOAMP_GAIN_1_5dB );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, "--------------------------\r\n" );

    log_printf( &logger, "        Gain -13.5 dB      \r\n" );
    stereoamp_set_volume( &stereoamp, STEREOAMP_GAIN_NEG_13_5dB );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, "--------------------------\r\n" );
}  

The full application code, and ready to use projects can be installed directly from compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.StereoAmp

Additional notes and infromations

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.


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