gainamp2

---

GainAMP 2 Click

GainAMP 2 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.

---

Click Library

• Author : MikroE Team
• Date : Dec 2019.
• Type : SPI type

Software Support

Example Description

This application is programmable gain amplifier

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.GainAmp2

Example Key Functions

• gainamp2_cfg_setup Config Object Initialization function.

void gainamp2_cfg_setup ( gainamp2_cfg_t *cfg );

• gainamp2_init Initialization function.

err_t gainamp2_init ( gainamp2_t *ctx, gainamp2_cfg_t *cfg );

• gainamp2_set_channel_gain Set the channel gain.

void gainamp2_set_channel_gain ( gainamp2_t *ctx, uint8_t channel, uint8_t gain );

• gainamp2_get_voltage Return voltage measured from VOUT pin.

float gainamp2_get_voltage ( gainamp2_t *ctx );

• gainamp2_write_Command Send Command.

void gainamp2_write_Command (  gainamp2_t *ctx, uint8_t instruction, uint8_t input  );

Application Init

Initializes and sets GainAMP 2 Click channel 0 to amplify the signal 2 times

void application_init ( void )
{
    log_cfg_t log_cfg;
    gainamp2_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_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    gainamp2_cfg_setup( &cfg );
    GAINAMP2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    gainamp2_init( &gainamp2, &cfg );
    
    gainamp2_set_channel_gain ( &gainamp2, GAINAMP2_CH0, GAINAMP2_GAIN_2X );
    log_printf( &logger,"Channel 0 - aplified 2x \r\n" ); 
}

Application Task

Displays the voltage measured from VOUT pin

void application_task ( void )
{
    log_printf( &logger,"Voltage at VOUT: %f \r\n", gainamp2_get_voltage( &gainamp2 ) );
    log_printf( &logger,"------------------------------- \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.

---