使用TPS65263和ATmega328升级您的电力需求，实现三重降压转换

/*!
 * \file 
 * \brief 3xBuck Click example
 * 
 * # Description
 * This example demonstrates the use of the 3 x Buck Click Board.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Initializes the driver and performs the Click default configuration.
 * 
 * ## Application Task  
 * Alternates between predefined and default values for the Bucks output and 
 * logs the current set values on the USB UART.
 * 
 * @note
 * The default output voltage on Buck 1 is 1800mV, Buck 2 is 3300mV, and Buck 3 is 5000mV.
 * Configurable output voltage on all Bucks ranges from 680mV to 1950mV.
 * 
 * \author Petar Suknjaja
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "c3xbuck.h"

// ------------------------------------------------------------------ VARIABLES

static c3xbuck_t c3xbuck;
static log_t logger;

// ------------------------------------------------------ APPLICATION FUNCTIONS

void application_init ( void )
{
    log_cfg_t log_cfg;
    c3xbuck_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.

    c3xbuck_cfg_setup( &cfg );
    C3XBUCK_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    c3xbuck_init( &c3xbuck, &cfg );
    Delay_ms ( 100 );
    
    c3xbuck_default_cfg ( &c3xbuck );
    log_info( &logger, "---- Application Task ----" );
}

void application_task ( void )
{
    //  Task implementation.
    log_printf( &logger, "Setting predefined values : \r\n" );
    log_printf( &logger, "Buck 1 : 1000 mV\r\n");
    log_printf( &logger, "Buck 2 : 1250 mV\r\n");
    log_printf( &logger, "Buck 3 : 1500 mV\r\n");
    
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_1, C3XBUCK_OUTPUT_VOLTAGE_1000mV );
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_2, C3XBUCK_OUTPUT_VOLTAGE_1250mV );
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_3, C3XBUCK_OUTPUT_VOLTAGE_1500mV );
    
    // 10 seconds delay
    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, "Setting default values: \r\n");
    log_printf( &logger, "Buck 1 : 1800 mV\r\n");
    log_printf( &logger, "Buck 2 : 3300 mV\r\n");
    log_printf( &logger, "Buck 3 : 5000 mV\r\n");
    
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_1, C3XBUCK_BUCK_DEFAULT_OUTPUT_VOLTAGE );
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_2, C3XBUCK_BUCK_DEFAULT_OUTPUT_VOLTAGE );
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_3, C3XBUCK_BUCK_DEFAULT_OUTPUT_VOLTAGE );
    
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

int main ( void ) 
{
    /* Do not remove this line or clock might not be set correctly. */
    #ifdef PREINIT_SUPPORTED
    preinit();
    #endif
    
    application_init( );
    
    for ( ; ; ) 
    {
        application_task( );
    }

    return 0;
}

// ------------------------------------------------------------------------ END