2x5wamp

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2X5W AMP Click

2X5W AMP 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 : MikroE Team
• Date : Jan 2020.
• Type : GPIO type

Software Support

Example Description

This is a example which demonstrates the use of 2x5W Amp Click board. 2x5W AMP Click functions as an amplifier and features the TDA7491LP 2x5-watt dual BTL class-D audio amplifier. It communicates with the target MCU over the following pins on the mikroBUS™ line: AN, RST, CS, PWM, INT.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.2x5WAmp

Example Key Functions

• c2x5wamp_cfg_setup Config Object Initialization function.

void c2x5wamp_cfg_setup ( c2x5wamp_cfg_t *cfg );

• c2x5wamp_init Initialization function.

err_t c2x5wamp_init ( c2x5wamp_t *ctx, c2x5wamp_cfg_t *cfg );

• c2x5wamp_default_cfg Click Default Configuration function.

void c2x5wamp_default_cfg ( c2x5wamp_t *ctx );

• c2x5wamp_set_mode Set mode selection of the amplifier function. .

uint8_t c2x5wamp_set_mode ( c2x5wamp_t *ctx, uint8_t select_mode );

• c2x5wamp_set_gain Set Gain resistors of the amplifier function.

uint8_t c2x5wamp_set_gain ( c2x5wamp_t *ctx, uint8_t select_gain );

• c2x5wamp_check_input Check input impedance function.

uint8_t c2x5wamp_check_input ( c2x5wamp_t *ctx );

Application Init

Initializes GPIO and LOG structures, set INT pin as input and sets AN, RST, CS and PWM pins as output.

void application_init ( void )
{
    log_cfg_t log_cfg;
    c2x5wamp_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, "-- Application Init --\r\n" );
    Delay_ms ( 100 );

    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, "    2x5W Amp  Click    \r\n" );
    log_printf( &logger, "-----------------------\r\n" );

    //  Click initialization.

    c2x5wamp_cfg_setup( &cfg );
    C2X5WAMP_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    c2x5wamp_init( &c2x5wamp, &cfg );
    Delay_ms ( 100 );
    
    c2x5wamp_default_cfg ( &c2x5wamp );
    Delay_ms ( 100 );
}

Application Task

This is a example which demonstrates the use of 2x5W Amp Click board. This examples first activates operation mode MUTE for 5 seconds and after that activates operation mode PLAY. When the device is in Play mode then changes the gain selection, the first sets the minimum gain ( 20dB ) for 10 seconds and then sets the maximum gain (32dB) for 5 seconds too. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void )
{
    c2x5wamp_set_mode( &c2x5wamp, C2X5WAMP_MODE_MUTE );

    log_printf( &logger, "       MUTE  MODE      \r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, "-----------------------\r\n" );

    if ( c2x5wamp_set_mode( &c2x5wamp, C2X5WAMP_MODE_PLAY ) )
    {
        log_printf( &logger, "       PLAY  MODE       \r\n" );
    }
    else
    {
        log_printf( &logger, "    ERROR PLAY MODE    \r\n" );
    }

    log_printf( &logger, "-----------------------\r\n" );

    c2x5wamp_set_gain( &c2x5wamp, C2X5WAMP_GAIN_20DB );

    log_printf( &logger, "   Gain set to  20dB   \r\n" );
    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" );

    c2x5wamp_set_gain( &c2x5wamp, C2X5WAMP_GAIN_32DB );

    log_printf( &logger, "   Gain set to  32dB   \r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, "-----------------------\r\n" );
}

Note

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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