TOP Contributors

  1. MIKROE (2763 codes)
  2. Alcides Ramos (374 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (118 codes)
  5. Bugz Bensce (91 codes)
  6. S P (73 codes)
  7. dany (71 codes)
  8. MikroBUS.NET Team (35 codes)
  9. NART SCHINACKOW (34 codes)
  10. Armstrong Subero (27 codes)

Most Downloaded

  1. Timer Calculator (139276 times)
  2. FAT32 Library (71761 times)
  3. Network Ethernet Library (57129 times)
  4. USB Device Library (47434 times)
  5. Network WiFi Library (43100 times)
  6. FT800 Library (42409 times)
  7. GSM click (29835 times)
  8. mikroSDK (28110 times)
  9. PID Library (26887 times)
  10. microSD click (26201 times)
Libstock prefers package manager

Package Manager

We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]

< Back
mikroSDK Library

I2C Extend Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.11

mikroSDK Library: 2.0.0.0

Category: I2C

Downloaded: 157 times

Not followed.

License: MIT license  

I2C Extend Click is a compact add-on board for applications that require extending the I2C communication bus over a long distance. This board features the LTC4331 - an I2C slave device extender over a rugged differential link, from Analog Devices.

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "I2C Extend Click" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "I2C Extend Click" changes.

Do you want to report abuse regarding "I2C Extend Click".

  • mikroSDK Library 1.0.0.0
  • Comments (0)

mikroSDK Library Blog


I2C Extend Click

I2C Extend Click is a compact add-on board for applications that require extending the I2C communication bus over a long distance. This board features the LTC4331 - an I2C slave device extender over a rugged differential link, from Analog Devices.

i2cextend_click.png

Click Product page


Click library

  • Author : Stefan Ilic
  • Date : Jul 2021.
  • Type : I2C type

Software Support

We provide a library for the I2CExtend 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 I2CExtend Click driver.

Standard key functions :

  • i2cextend_cfg_setup Config Object Initialization function.

    void i2cextend_cfg_setup ( i2cextend_cfg_t *cfg );
  • i2cextend_init Initialization function.

    err_t i2cextend_init ( i2cextend_t *ctx, i2cextend_cfg_t *cfg );

Example key functions :

  • i2cextend_rmt_multi_read Generic multi read data in Remote Mode function.

    void i2cextend_rmt_multi_read ( i2cextend_t *ctx, uint8_t rmt_slave_addr, uint8_t reg, uint8_t *p_rx_data, uint8_t n_bytes );
  • i2cextend_set_config Set the configuration function.

    void i2cextend_set_config ( i2cextend_t *ctx, uint8_t intr_mode, uint8_t ctrl_sel );
  • i2cextend_set_out_slave_address Set out slave address function.

    void i2cextend_set_out_slave_address ( i2cextend_t *ctx, uint8_t out_slave_address );

Example Description

This is an example which demonstrates the use of I2C Extend Click board.

The demo application is composed of two sections :

Application Init

Initialization driver enables - I2C, check communication with device 6DOF IMU 11 Click connected to the I2C Extend Click ( Remote Mode ), set default configuration and start measurement.


void application_init ( void ) {
    log_cfg_t log_cfg;  /**< Logger config object. */
    i2cextend_cfg_t i2cextend_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.
    i2cextend_cfg_setup( &i2cextend_cfg );
    I2CEXTEND_MAP_MIKROBUS( i2cextend_cfg, MIKROBUS_1 );
    err_t init_flag = i2cextend_init( &i2cextend, &i2cextend_cfg );
    if ( I2C_MASTER_ERROR == init_flag ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    if ( i2cbuffer2_rmt_read( &i2cextend, C6DOFIMU11_I2C_SLAVE_ADDRESS_GND, C6DOFIMU11_REG_WHO_AM_I ) == C6DOFIMU11_WHO_AM_I_WIA_ID ) {
        log_printf( &logger, "        SUCCESS         \r\n" );
        log_printf( &logger, "------------------------\r\n" );
    } else {
        log_printf( &logger, "         ERROR          \r\n" );
        log_printf( &logger, "    Reset the device    \r\n" );
        log_printf( &logger, "------------------------\r\n" );
        for ( ; ; );
    }
    i2cbuffer2_rmt_write( &i2cextend, C6DOFIMU11_I2C_SLAVE_ADDRESS_GND, C6DOFIMU11_REG_CNTL2, C6DOFIMU11_CNTL2_TEMP_EN_STANDBY_MODE |
                                                                                  C6DOFIMU11_CNTL2_MAG_EN_STANDBY_MODE |
                                                                                  C6DOFIMU11_CNTL2_ACCEL_EN_STANDBY_MODE );

    i2cbuffer2_rmt_write ( &i2cextend, C6DOFIMU11_I2C_SLAVE_ADDRESS_GND, C6DOFIMU11_REG_INC3, C6DOFIMU11_INC3_IEL2_FIFO_TRIG | 
                                                                                  C6DOFIMU11_INC3_IEL1_FIFO_TRIG );

    i2cbuffer2_rmt_write ( &i2cextend, C6DOFIMU11_I2C_SLAVE_ADDRESS_GND, C6DOFIMU11_REG_CNTL2, C6DOFIMU11_CNTL2_GSEL_8G | 
                                                                                   C6DOFIMU11_CNTL2_RES_MAX2 | 
                                                                                   C6DOFIMU11_CNTL2_MAG_EN_OPERATING_MODE | 
                                                                                   C6DOFIMU11_CNTL2_ACCEL_EN_OPERATING_MODE );
    log_info( &logger, " Application Task " );
    log_printf( &logger, "------------------------\r\n" );
}

Application Task

In this example, we read Accel and Mag axis of the connected 6DOF IMU 11 Click boards to the I2C Extend Click ( Remote Mode ) which is connected by a LAN cable to I2C Extend Click ( Local Mode ). Results are being sent to the Usart Terminal where you can track their changes. All data logs write on USB uart changes for every 2 sec.


void application_task ( void ) {
    log_printf( &logger, "\t   Accel   \t|\t    Mag    \r\n" );
    log_printf( &logger, "------------------------------------------------\r\n" );

    i2cbuffer2_6dofimu11_get_axis( &i2cextend, C6DOFIMU11_REG_ACCEL_XOUT_L );
    log_printf( &logger, "\t Accel X: %d\t|", axis );
    i2cbuffer2_6dofimu11_get_axis( &i2cextend, C6DOFIMU11_REG_MAG_XOUT_L );
    log_printf( &logger, "\t Mag X: %d\r\n", axis );

    i2cbuffer2_6dofimu11_get_axis( &i2cextend, C6DOFIMU11_REG_ACCEL_YOUT_L );
    log_printf( &logger, "\t Accel Y: %d\t|", axis );
    i2cbuffer2_6dofimu11_get_axis( &i2cextend, C6DOFIMU11_REG_MAG_YOUT_L );
    log_printf( &logger, "\t Mag Y: %d\r\n", axis );

    i2cbuffer2_6dofimu11_get_axis( &i2cextend, C6DOFIMU11_REG_ACCEL_ZOUT_L );
    log_printf( &logger, "\t Accel Z: %d\t|", axis );
    i2cbuffer2_6dofimu11_get_axis( &i2cextend, C6DOFIMU11_REG_MAG_ZOUT_L );
    log_printf( &logger, "\t Mag Z: %d\r\n", axis );

    log_printf( &logger, "------------------------------------------------\r\n" );
    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.I2CExtend

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.


ALSO FROM THIS AUTHOR

Air quality Click

0

Air quality Click carries an MQ-135 sensor for detecting poisonous gases that impact air quality in homes and offices. The Click is designed to run on a 5V power supply. It communicates with the target microcontroller over the AN pin on the mikroBUS™ line.

[Learn More]

Charger 2 click

5

Charger 2 click is a LiPo battery charger with the additional monitoring IC onboard. This Click board as a whole, offers unpreceded LiPo battery charging and monitoring solution for 4.2V LiPo batteries, with the capacity up to 7000 mAh.

[Learn More]

Hall Current 3 Click

0

Hall current 3 Click is a very accurate current measurement Click board™, which utilizes the Hall effect to provide a precise and reliable measurement of reasonably high current. Its most distinctive feature is a very low series resistance of only 0.7mΩ, making this device a nearly-perfect ammeter.

[Learn More]