Headphone AMP 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.
- Author : Nenad Filipovic
- Date : Jun 2023.
- Type : I2C type
This example demonstrates the use of the Headphone AMP 2 Click board™, the headphone amplifier with BassMax and volume control.
- MikroSDK.Board
- MikroSDK.Log
- Click.HeadphoneAMP2
headphoneamp2_cfg_setup
Config Object Initialization function.
void headphoneamp2_cfg_setup ( headphoneamp2_cfg_t *cfg );
headphoneamp2_init
Initialization function.
err_t headphoneamp2_init ( headphoneamp2_t *ctx, headphoneamp2_cfg_t *cfg );
headphoneamp2_default_cfg
Click Default Configuration function.
err_t headphoneamp2_default_cfg ( headphoneamp2_t *ctx );
headphoneamp2_set_command
Headphone AMP 2 set the command function.
err_t headphoneamp2_set_command ( headphoneamp2_t *ctx, headphoneamp2_cmd_t cmd_ctrl );
headphoneamp2_enable
Headphone AMP 2 enable the device function.
void headphoneamp2_enable ( headphoneamp2_t *ctx );
headphoneamp2_disable
Headphone AMP 2 disable the device function.
void headphoneamp2_disable ( headphoneamp2_t *ctx );
The initialization of I2C module and log UART. After driver initialization, the app sets the default configuration.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
headphoneamp2_cfg_t headphoneamp2_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.
headphoneamp2_cfg_setup( &headphoneamp2_cfg );
HEADPHONEAMP2_MAP_MIKROBUS( headphoneamp2_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == headphoneamp2_init( &headphoneamp2, &headphoneamp2_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( HEADPHONEAMP2_ERROR == headphoneamp2_default_cfg ( &headphoneamp2 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
log_printf( &logger, "-------------------------\r\n" );
Delay_ms ( 100 );
}
This example demonstrates the use of the Headphone AMP 2 Click board™. The application wakes up the device, enables BassMax and Maximum Gain modes, and switches the sound volume from level 1 to the max level. Results are being sent to the UART Terminal, where you can track their changes.
void application_task ( void )
{
static headphoneamp2_cmd_t cmd_ctrl;
cmd_ctrl.wakes_up = HEADPHONEAMP2_CMD_ENABLE;
cmd_ctrl.bass_max = HEADPHONEAMP2_CMD_ENABLE;
cmd_ctrl.gain_max = HEADPHONEAMP2_CMD_ENABLE;
cmd_ctrl.volume = HEADPHONEAMP2_VOL_MUTE;
log_printf( &logger, " Volume : " );
for ( uint8_t volume = HEADPHONEAMP2_VOL_LVL_1; volume <= HEADPHONEAMP2_VOL_LVL_MAX; volume++ )
{
cmd_ctrl.volume = volume;
if ( HEADPHONEAMP2_OK == headphoneamp2_set_command( &headphoneamp2, cmd_ctrl ) )
{
log_printf( &logger, "|" );
}
Delay_ms ( 1000 );
}
log_printf( &logger, "\r\n-------------------------\r\n" );
}
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.
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.