Library Description

This library provides generic functions for working with the Click board™.

Key functions:

• uint8_t charger2_writeReg( uint8_t register_address, uint8_t transfer_data ) - The function writes one-byte data to the register.
• uint8_t charger2_readReg( uint8_t register_address, uint8_t *valueOut, uint8_t nBytes ) - The function reads the desired number of data bytes.
• uint8_t charger2_readData( uint8_t dataMode, uint32_t *dataOut ) - The function reads the desired data from data registers and converts this data to the appropriate unit.

Examples Description

The application is composed of three sections:

• System Initialization - Initializes peripherals and pins.
• Application Initialization - Initializes I2C driver, performs the counter and accumulator reset and puts the device in operating mode with the 14-bit ADC resolution.
• Application Task - (code snippet) - Reads the all necessary information for the battery charging status and logs this results on UART. Repeats operation every second. The LED diodes are used to indicate the Vcc presence when this voltage is in operating range, and to show the charging status.

void applicationTask()
{
 charger2_readData( _CHARGER2_GAS_GAUGE_CHARGE_DATA, &batteryData );
 resultsLogger();
 charger2_readData( _CHARGER2_CONV_NUMBER, &batteryData );
 resultsLogger();
 charger2_readData( _CHARGER2_SHUNT_VOLTAGE, &batteryData );
 resultsLogger();
 charger2_readData( _CHARGER2_BATTERY_VOLTAGE, &batteryData );
 resultsLogger();
 charger2_readData( _CHARGER2_TEMPERATURE, &batteryData );
 resultsLogger();
 charger2_readData( _CHARGER2_BATTERY_CURRENT, &batteryData );
 resultsLogger();
 mikrobus_logWrite( "", _LOG_LINE );

 Delay_ms( 1000 );
}

Additional Functions:

• void resultsLogger() - Logs the desired data for the battery charging status.

The full application code, and ready to use projects can be found on our Libstock page.

Other mikroE Libraries used in the example:

• Conversions
• I2C
• UART

Additional notes and information

Depending on the development board you are using, you may need USB UART click,  USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.