charger17  2.1.0.0
Main Page

Charger 17 click

Charger 17 Click is a compact add-on board that provides a single-cell battery charging solution. This board features the RT9471, a 3A single-cell switching battery charger from Richtek. It is a highly-integrated battery charge and system power-path management device for single-cell Li-Ion and Li-Polymer batteries. The high-efficiency 1.5MHz synchronous switch-mode buck charger achieves up to 92% charge efficiency at 2A with 5V input and 3.8V battery.

click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Aug 2022.
  • Type : I2C type

Software Support

We provide a library for the Charger 17 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Charger 17 Click driver.

Standard key functions :

Example key functions :

Example Description

This example demonstrates the use of Charger 17 click board by enabling battery charging and displaying the charging status.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the click default configuration which enables charging.

void application_init ( void )
{
log_cfg_t log_cfg;
charger17_cfg_t charger17_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
charger17_cfg_setup( &charger17_cfg );
CHARGER17_MAP_MIKROBUS( charger17_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == charger17_init( &charger17, &charger17_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( CHARGER17_ERROR == charger17_default_cfg ( &charger17 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Reads and displays the battery charging status (IC_STATUS and STAT0 regs) on the USB UART approximately once per second.

void application_task ( void )
{
uint8_t ic_status, status_0;
if ( CHARGER17_OK == charger17_read_register ( &charger17, CHARGER17_REG_IC_STATUS, &ic_status ) )
{
charger17_parse_ic_status ( ic_status );
}
if ( CHARGER17_OK == charger17_read_register ( &charger17, CHARGER17_REG_STAT0, &status_0 ) )
{
charger17_parse_status_0 ( status_0 );
}
Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Charger17

Additional notes and informations

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. UART terminal is available in all MikroElektronika compilers.


CHARGER17_REG_IC_STATUS
#define CHARGER17_REG_IC_STATUS
Definition: charger17.h:84
charger17_default_cfg
err_t charger17_default_cfg(charger17_t *ctx)
Charger 17 default configuration function.
application_task
void application_task(void)
Definition: main.c:83
CHARGER17_OK
@ CHARGER17_OK
Definition: charger17.h:439
charger17_enable_charging
void charger17_enable_charging(charger17_t *ctx)
Charger 17 enable charging function.
CHARGER17_MAP_MIKROBUS
#define CHARGER17_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: charger17.h:381
charger17_read_register
err_t charger17_read_register(charger17_t *ctx, uint8_t reg, uint8_t *data_out)
Charger 17 read register function.
charger17_init
err_t charger17_init(charger17_t *ctx, charger17_cfg_t *cfg)
Charger 17 initialization function.
charger17_t
Charger 17 Click context object.
Definition: charger17.h:397
charger17_set_psel_2400mA
void charger17_set_psel_2400mA(charger17_t *ctx)
Charger 17 set psel 2400mA function.
CHARGER17_REG_STAT0
#define CHARGER17_REG_STAT0
Definition: charger17.h:85
CHARGER17_ERROR
@ CHARGER17_ERROR
Definition: charger17.h:440
application_init
void application_init(void)
Definition: main.c:47
charger17_cfg_t
Charger 17 Click configuration object.
Definition: charger17.h:419
charger17_cfg_setup
void charger17_cfg_setup(charger17_cfg_t *cfg)
Charger 17 configuration object setup function.