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mikroSDK Library

Current Limit 7 Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.12

mikroSDK Library: 2.0.0.0

Category: Power Switch

Downloaded: 195 times

Not followed.

License: MIT license  

Current Limit 7 Click is a compact add-on board representing a current-limiting solution. This board features the MAX14575A, an adjustable current-limit switch from Analog Devices. This Click board™ features internal current limiting to prevent damage to host devices due to faulty load conditions, has a low 32mΩ on-resistance, and operates from a 2.3V to 5.5V input voltage range. Also, the current limit is adjustable from 250mA to 2.5A programmed through AD5272 digital rheostat and set via onboard range switch. This Click board™ is suitable for applications in portable equipment and condition monitoring or power supplies, protecting them in short circuits or other overload conditions.

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mikroSDK Library Blog


Current Limit 7 Click

Current Limit 7 Click is a compact add-on board representing a current-limiting solution. This board features the MAX14575A, an adjustable current-limit switch from Analog Devices. This Click board™ features internal current limiting to prevent damage to host devices due to faulty load conditions, has a low 32mΩ on-resistance, and operates from a 2.3V to 5.5V input voltage range. Also, the current limit is adjustable from 250mA to 2.5A programmed through AD5272 digital rheostat and set via onboard range switch. This Click board™ is suitable for applications in portable equipment and condition monitoring or power supplies, protecting them in short circuits or other overload conditions.

currentlimit7_click.png

Click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Dec 2021.
  • Type : I2C type

Software Support

We provide a library for the Current Limit 7 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 Current Limit 7 Click driver.

Standard key functions :

  • currentlimit7_cfg_setup Config Object Initialization function.

    void currentlimit7_cfg_setup ( currentlimit7_cfg_t *cfg );
  • currentlimit7_init Initialization function.

    err_t currentlimit7_init ( currentlimit7_t *ctx, currentlimit7_cfg_t *cfg );
  • currentlimit7_default_cfg Click Default Configuration function.

    err_t currentlimit7_default_cfg ( currentlimit7_t *ctx );

Example key functions :

  • currentlimit7_set_current_limit Current Limit 7 set current limit function.

    err_t currentlimit7_set_current_limit ( currentlimit7_t *ctx, uint8_t op_mode, uint16_t current_limit_ma );
  • currentlimit7_set_resistance Current Limit 7 set resistance function.

    err_t currentlimit7_set_resistance ( currentlimit7_t *ctx, uint32_t res_ohm );
  • currentlimit7_get_fault Current Limit 7 get fault function.

    uint8_t currentlimit7_get_fault ( currentlimit7_t *ctx );

Example Description

This library contains API for the Current Limit 7 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;  /**< Logger config object. */
    currentlimit7_cfg_t currentlimit7_cfg;  /**< Click config object. */

    /** 
     * 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.
    currentlimit7_cfg_setup( &currentlimit7_cfg );
    CURRENTLIMIT7_MAP_MIKROBUS( currentlimit7_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == currentlimit7_init( &currentlimit7, &currentlimit7_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( CURRENTLIMIT7_ERROR == currentlimit7_default_cfg ( &currentlimit7 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
    Delay_ms ( 100 );

    log_info( &logger, " Application Task " );
    log_printf( &logger, "---------------------------\r\n" );
    log_printf( &logger, "   Current Limit 7 Click   \r\n" );
    log_printf( &logger, "---------------------------\r\n" );
    Delay_ms ( 100 );

#ifdef CURRENTLIMIT_MODE_250_mA_500_mA
    currentlimit7_set_current_limit ( &currentlimit7, CURRENTLIMIT7_OP_MODE_250_mA_500_mA, limit_value_op[ 10 ] );
    log_printf( &logger, "  >>> Selected mode %d     \r\n", 0 );
    log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
    log_printf( &logger, " Current limit is %d mA    \r\n", limit_value_op[ 10 ] );
    log_printf( &logger, "---------------------------\r\n" );
    Delay_ms ( 100 );
#else
    currentlimit7_set_current_limit ( &currentlimit7, CURRENTLIMIT7_OP_MODE_500_mA_2500_mA, limit_value_op[ 0 ] );
    log_printf( &logger, "  >>> Selected mode %d     \r\n", 0 );
    log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
    log_printf( &logger, " Current limit is %d mA    \r\n", limit_value_op[ 0 ] );
    log_printf( &logger, "---------------------------\r\n" );
    Delay_ms ( 100 );
#endif

    display_selection( );
    Delay_ms ( 100 );
}

Application Task

This example demonstrates the use of the Current Limit 7 Click board™. Reading user's input from Usart 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 Usart Terminal, where you can track their changes.

void application_task ( void ) 
{
    static char index;

    if ( CURRENTLIMIT7_ERROR != log_read( &logger, &index, 1 ) ) 
    {
    #ifdef CURRENTLIMIT_MODE_250_mA_500_mA
        if ( ( index >= '0' ) && ( index <= '3' ) )
        {
            currentlimit7_set_current_limit ( &currentlimit7, CURRENTLIMIT7_OP_MODE_250_mA_500_mA, limit_value_op[ index - 38 ] );
            log_printf( &logger, "  >>> Selected mode %d     \r\n", index - 48 );
            log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
            log_printf( &logger, "  Current limit is %d mA   \r\n", limit_value_op[ index - 38 ] );
            log_printf( &logger, "---------------------------\r\n" );
            Delay_ms ( 100 );
        }
    #else
        if ( ( index >= '0' ) && ( index <= '9' ) ) 
        {
            currentlimit7_set_current_limit ( &currentlimit7, CURRENTLIMIT7_OP_MODE_500_mA_2500_mA, limit_value_op[ index - 48 ] );
            log_printf( &logger, "  >>> Selected mode %d     \r\n", index - 48 );
            log_printf( &logger, "- - - - - - - - - - - - - -\r\n" );
            log_printf( &logger, "  Current limit is %d mA   \r\n", limit_value_op[ index - 48 ] );
            log_printf( &logger, "---------------------------\r\n" );
            Delay_ms ( 100 );
        }
    #endif
        else 
        { 
            log_printf( &logger, "    Data not in range!    \r\n" );
            log_printf( &logger, "---------------------------\r\n" );
            display_selection( );
            Delay_ms ( 100 );
        }
    }
}

Additional Function

  • display_selection This function displays selection messages.
    static void display_selection ( void );

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.CurrentLimit7

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.


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