Monitor, protect, and optimize your battery life with STC3115 and STM32F091RC

/*!
 * \file 
 * \brief BattMon Click example
 * 
 * # Description
 * This application is battery charger.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Initializes I2C serial interface, reads the part ID and
 * performs a device configuration and alarm setting.
 * 
 * ## Application Task  
 * Checks the conversion counter value and when conversion was done
 * reads data calculated to the properly unit and checks the alarm status.
 * All results will be sent to the uart terminal.
 * 
 * *note:* 
 * Voltage and current conversion will be done after 4 seconds.
 * Temperature conversion will be done after 16 seconds.
 * After temperature reading the conversion counter will be cleared.
 * Clearing the alarm while the corresponding low-voltage or low-SOC condition is still in progress 
 * does not generate another interrupt. This condition must disappear first and must be detected again 
 * before another interrupt (ALM pin driven low or alarm interrupt bits are set high) is generated for this alarm.
 * Another alarm condition, if not yet triggered, can still generate an interrupt.
 * Input voltage must be in the range from 2.7V to 4.5V.
 * Maximal battery current is 5A.
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "battmon.h"

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

static battmon_t battmon;
static log_t logger;
static uint8_t reg_read;

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

void application_init ( void )
{
    log_cfg_t log_cfg;
    battmon_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.

    battmon_cfg_setup( &cfg );
    BATTMON_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    battmon_init( &battmon, &cfg );

    Delay_ms ( 500 );

    battmon_read_bytes( &battmon, BATTMON_REG_ID, &reg_read, 1 );
    log_printf( &logger, " ** Part ID: 0x%d \r\n", (uint16_t) reg_read );

    battmon_default_cfg( &battmon );
    
    log_printf( &logger, "** BattMon initialization done ** \r\n" );
    log_printf( &logger, "********************************* \r\n" );
}

void application_task ( void )
{
    char cels_symbol[ 3 ] = { 176, 'C', 0 };
    float data_read;
    uint16_t conv_cnt;

    conv_cnt = battmon_get_data( &battmon, BATTMON_REG_COUNTER );

    if ( ( ( conv_cnt % 4 ) == 0 ) && ( conv_cnt > 0 ) )
    {
        data_read = battmon_get_data( &battmon, BATTMON_REG_SOC );
        log_printf( &logger, "** Gas Gauge Relative SOC : %.2f %% \r\n ", data_read );
    
        data_read = battmon_get_data( &battmon, BATTMON_REG_CURRENT );
        log_printf( &logger, "** Battery Current : %.2f mA \r\n", data_read );

        
        data_read = battmon_get_data( &battmon, BATTMON_REG_VOLTAGE );
        log_printf( &logger, "** Battery Voltage : %.2f mV \r\n", data_read );
        
        if ( ( conv_cnt % 16 ) == 0 )
        {
            data_read = battmon_get_data( &battmon, BATTMON_REG_TEMPERATURE );
            battmon_reset_conv_cnt( &battmon );
            log_printf( &logger, "** Temperature :  %.2f %s\r\n", data_read, cels_symbol );
        }
        
        reg_read = battmon_check_clear_alarm( &battmon );

        if ( ( reg_read & BATTMON_ALM_SOC_DET_MASK ) != BATTMON_LOG_LOW )
        {
            log_printf( &logger,  "** Low-SOC Condition! \r\n" );
        }
        if ( ( reg_read & BATTMON_ALM_VOLT_DET_MASK ) != BATTMON_LOG_LOW )
        {
            log_printf( &logger,  "** Low-Voltage Condition! \r\n" ); 
        }
        
        log_printf( &logger, "********************************* \r\n" );
        Delay_ms ( 1000 );
    }
    else
    {
        Delay_ms ( 200 );
    }
}

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