使用 MAX86150 和 ATmega32 进行准确分析，提升心脏护理

/*!
 * \file 
 * \brief Ecg6 Click example
 * 
 * # Description
 * ECG 6 Click contain integrated electrocardiogram, pulse oximeter, 
 * heart rate monitor sensor module.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Initialize I2C module and all necessary pins. Checking communication accuracy
 * and running default configuration for measurement.
 * 
 * ## Application Task  
 * Measures an ECG signal or PPG sensor and draws a graph on a SerialPlot
 * 
 * ##Additional Functions :
 * - plot_ecg_data ( ) -  Sends ECG sensor data to SerialPlot
 * - plot_ppg_data ( ) -  Sends PPG sensor data to SerialPlot
 * 
 * 
 * *note:* 
 * When using ECG measurement - PPG measurement must be switched off ...
 * Drawing speeds vary for PPG and ECG sensor.
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "ecg6.h"

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

static ecg6_t ecg6;
static log_t logger;
static ecg6_int_status_t int_status;

static uint8_t ECG_EXAMPLE = 1;
static uint8_t PPG_EXAMPLE = 0;
static uint8_t DEMO_EXAMPLE;

static uint32_t time_cnt = 0;
static uint8_t device_check;

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

static void plot_ecg_data ( uint32_t ecg_data )
{
    uint32_t tmp;
    uint32_t timer;

    tmp = ecg_data & 0x3FFFFF;
    timer = time_cnt++;
    
    if ( tmp != 0 ) {
        log_printf( &logger, "%lu,%lu\r\n", tmp, timer );
        Delay_ms( 5 );
    }
}

static void plot_ppg_data ( uint32_t ir_data, uint32_t red_data )
{
    uint32_t tmp;
    uint32_t tmf;
    uint32_t tmd;

    tmp = ir_data & 0x0007FFFF;
    tmf = red_data & 0x0007FFFF;
    tmd = time_cnt++;
    
    if ( ( tmp != 0 ) && ( tmf != 0 ) ) {
        log_printf( &logger,"%lu,%lu,%lu\r\n", tmp, tmf, tmd );
        Delay_ms( 20 );
    }
}

void application_init ( void )
{
    log_cfg_t log_cfg;
    ecg6_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.

    ecg6_cfg_setup( &cfg );
    ECG6_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    ecg6_init( &ecg6, &cfg );
    
    Delay_ms( 1000 );
    
    DEMO_EXAMPLE = PPG_EXAMPLE;
   
    // Dummy read
    ecg6_check_path_id( &ecg6 );
    Delay_ms( 100 );
    
    device_check = ecg6_check_path_id( &ecg6 );
    
    if ( device_check != 0 )
    {
       log_printf( &logger, " -- > Device ERROR!!! \r\n" );
       for ( ; ; );
    }
    log_printf( &logger, " -- > Device OK!!! \r\n" );

    if ( DEMO_EXAMPLE == ECG_EXAMPLE )
    {
        ecg6_default_cfg( &ecg6 );
    }
    else
    {
        ecg6_ppg_default_config( &ecg6 );
    }

    log_printf( &logger, " ---- Configuration done ----- \r\n" );
    Delay_ms( 1000 );

    time_cnt = 0;
}

void application_task ( void )
{
    ecg6_element_t sample;
    
    if ( ecg6_int_pin_state(&ecg6) == 0 ) {
        
        ecg6_get_sample_data( &ecg6, &sample, 0x00 );
    
        if ( DEMO_EXAMPLE == ECG_EXAMPLE )
        {
            plot_ecg_data( sample.element_1 );
        }
        
        else
        {
            plot_ppg_data( sample.element_1, sample.element_2 );
        }
    }
}

void main ( void )
{
    application_init( );

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


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