efuse4  2.1.0.0
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eFuse 4 Click

eFuse 4 Click is a compact add-on board with a power path protection solution that limits circuit currents and voltages to safe levels during fault conditions. This board features the TPS25940, an eFuse power switch with reverse current blocking from Texas Instruments. The TPS25940 features a full suite of protection and monitoring functions, including a DevSleep™ mode that supports compliance with the SATA™ Device Sleep standard. The wide operating range from 2.7V to 18V allows control of many popular DC bus voltages. The additional potentiometer sets the overload and short-circuit current limit of the TPS25940, while the additional header allows external current monitoring.

Click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Nov 2022.
  • Type : I2C type

Software Support

We provide a library for the eFuse 4 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 eFuse 4 Click driver.

Standard key functions :

Example key functions :

Example Description

This library contains API for the eFuse 4 Click driver. This driver provides the functions to set the current limiting conditions in order to provide the threshold of the fault conditions.

The demo application is composed of two sections :

Application Init

Initialization of I2C module and log UART. After driver initialization, default settings turn on the device.

void application_init ( void )
{
log_cfg_t log_cfg;
efuse4_cfg_t efuse4_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
efuse4_cfg_setup( &efuse4_cfg );
EFUSE4_MAP_MIKROBUS( efuse4_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == efuse4_init( &efuse4, &efuse4_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( EFUSE4_ERROR == efuse4_default_cfg ( &efuse4 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
log_printf( &logger, "---------------------------\r\n" );
Delay_ms ( 100 );
display_selection( );
Delay_ms ( 100 );
}

Application Task

This example demonstrates the use of the eFuse 4 Click board™. Reading user's input from UART Terminal and using it as an index for an array of pre-calculated values that define the current limit level. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void )
{
static char index;
if ( EFUSE4_ERROR != log_read( &logger, &index, 1 ) )
{
if ( ( index >= '0' ) && ( index <= '6' ) )
{
efuse4_set_current_limit ( &efuse4, limit_value_op[ index - 48 ] );
log_printf( &logger, " >>> Selected mode %d \r\n", index - 48 );
log_printf( &logger, " Current limit is %d mA \r\n", limit_value_op[ index - 48 ] );
log_printf( &logger, "---------------------------\r\n" );
Delay_ms ( 100 );
}
else
{
log_printf( &logger, " Data not in range! \r\n" );
log_printf( &logger, "---------------------------\r\n" );
display_selection( );
Delay_ms ( 100 );
}
}
}

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.eFuse4

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.


efuse4_cfg_t
eFuse 4 Click configuration object.
Definition: efuse4.h:166
limit_value_op
const efuse4_current_limit_t limit_value_op[7]
Definition: main.c:33
efuse4_set_normal_mode
void efuse4_set_normal_mode(efuse4_t *ctx)
eFuse 4 set normal mode function.
efuse4_set_current_limit
err_t efuse4_set_current_limit(efuse4_t *ctx, efuse4_current_limit_t current_limit)
eFuse 4 set current limit function.
EFUSE4_MAP_MIKROBUS
#define EFUSE4_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: efuse4.h:128
application_task
void application_task(void)
Definition: main.c:100
EFUSE4_ERROR
@ EFUSE4_ERROR
Definition: efuse4.h:187
efuse4_default_cfg
err_t efuse4_default_cfg(efuse4_t *ctx)
eFuse 4 default configuration function.
efuse4_current_limit_t
efuse4_current_limit_t
eFuse 4 Click current limit value data.
Definition: efuse4.h:196
efuse4_init
err_t efuse4_init(efuse4_t *ctx, efuse4_cfg_t *cfg)
eFuse 4 initialization function.
efuse4_t
eFuse 4 Click context object.
Definition: efuse4.h:144
efuse4_set_resistance
err_t efuse4_set_resistance(efuse4_t *ctx, uint32_t res_ohm)
eFuse 4 set resistance function.
application_init
void application_init(void)
Definition: main.c:59
efuse4_cfg_setup
void efuse4_cfg_setup(efuse4_cfg_t *cfg)
eFuse 4 configuration object setup function.