使用INA228和PIC18LF47K40实现最高精度的电源监控

/*!
 * @file main.c
 * @brief PowerMonitor Click example
 *
 * # Description
 * This library contains API for Power Monitor Click driver.
 * The library initializes and defines the I2C bus drivers 
 * to write and read data from registers. 
 * The library also includes a function for reading 
 * Shunt and Bus voltage ( mV ), Current ( mA ), Power ( W ), Energy ( J ),   
 * as well as the Temperature in degrees Celsius.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * The initialization of I2C  module, log UART, and additional pins. 
 * After the driver init and then executes a default configuration, 
 * the app checks communication, display Manufacturer, Stores Device and Revision ID. 
 *
 * ## Application Task
 * This is an example that shows the use of a Power Monitor Click board™.
 * Measures and displays Shunt voltage ( mV ), Bus voltage ( mV ), 
 * Current ( mA ), Power ( W ), Energy ( J ) and Temperature ( degrees Celsius ). 
 * Results are being sent to the USART terminal where the user can track their changes. 
 * This task repeats every 2.5 sec.
 *
 * @author Nenad Filipovic
 *
 */

#include "board.h"
#include "log.h"
#include "powermonitor.h"

static powermonitor_t powermonitor;
static log_t logger;

void application_init ( void ) 
{
    log_cfg_t log_cfg;                    /**< Logger config object. */
    powermonitor_cfg_t powermonitor_cfg;  /**< Click config object. */
    static uint8_t manufacturer_id[ 2 ];
    static uint16_t dieid;
    static uint8_t rev_id;
    
    powermonitor.shunt = 0.28;

    /** 
     * 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.
    powermonitor_cfg_setup( &powermonitor_cfg );
    POWERMONITOR_MAP_MIKROBUS( powermonitor_cfg, MIKROBUS_1 );
    err_t init_flag = powermonitor_init( &powermonitor, &powermonitor_cfg );
    if ( I2C_MASTER_ERROR == init_flag ) 
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    powermonitor_default_cfg ( &powermonitor );
    log_printf( &logger, "----------------------------\r\n" );
    Delay_ms( 100 );
    
    powermonitor_get_id( &powermonitor, &manufacturer_id, &dieid, &rev_id );
    log_printf( &logger, "  Manufacturer ID  : %.2s\r\n", manufacturer_id );
    log_printf( &logger, "  Stores Device ID : 0x%.3X\r\n", dieid );
    log_printf( &logger, "  Revision ID      : 0x%.1X\r\n", rev_id );
    log_printf( &logger, "----------------------------\r\n" );
    log_info( &logger, " Application Task " );
    log_printf( &logger, "----------------------------\r\n" );
    Delay_ms( 100 );
}

void application_task ( void ) 
{
    static float vshunt, vbus, current, power, energy, temperature;
    
    powermonitor_get_vshunt( &powermonitor, &vshunt );
    log_printf( &logger, " Shunt voltage : %.2f mV\r\n", vshunt );
    Delay_ms( 100 ); 
    
    powermonitor_get_vbus( &powermonitor, &vbus );
    log_printf( &logger, " BUS voltage   : %.2f mV\r\n", vbus );
    Delay_ms( 100 );
    
    powermonitor_get_current( &powermonitor, &current );
    log_printf( &logger, " Current       : %.2f mA\r\n", current );
    Delay_ms( 100 ); 
    
    powermonitor_get_power( &powermonitor, &power );
    log_printf( &logger, " Power         : %.6f W\r\n", power );
    Delay_ms( 100 ); 
    
    powermonitor_get_energy( &powermonitor, &energy );
    log_printf( &logger, " Energy        : %.6f J\r\n", energy );
    log_printf( &logger, "- - - - - - - - - - - - - - \r\n" );
    Delay_ms( 100 ); 
    
    powermonitor_get_temperature( &powermonitor, &temperature );
    log_printf( &logger, " Temperature   : %.2f C\r\n", temperature );
    log_printf( &logger, "----------------------------\r\n" );
    Delay_ms( 2000 );
}

void main ( void ) 
{
    application_init( );

    for ( ; ; ) 
    {
        application_task( );
    }
}

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