TOP Contributors

  1. MIKROE (2762 codes)
  2. Alcides Ramos (374 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (118 codes)
  5. Bugz Bensce (90 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 (139251 times)
  2. FAT32 Library (71748 times)
  3. Network Ethernet Library (57120 times)
  4. USB Device Library (47430 times)
  5. Network WiFi Library (43082 times)
  6. FT800 Library (42403 times)
  7. GSM click (29835 times)
  8. mikroSDK (28076 times)
  9. PID Library (26885 times)
  10. microSD click (26198 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 2 Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.10

mikroSDK Library: 2.0.0.0

Category: I2C

Downloaded: 159 times

Not followed.

License: MIT license  

I2C Extend 2 Click is a compact add-on board suitable for I2C communication bus extension. This board features the PCA9615, a 2-channel multipoint differential I2C bus buffer with hot-swap logic from NXP Semiconductors. The PCA9615 converts the two default I2C signals into four differential signals, two for SCL and two for SDA.

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "I2C Extend 2 Click" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "I2C Extend 2 Click" changes.

Do you want to report abuse regarding "I2C Extend 2 Click".

  • mikroSDK Library 1.0.0.0
  • Comments (0)

mikroSDK Library Blog


I2C Extend 2 Click

I2C Extend 2 Click is a compact add-on board suitable for I2C communication bus extension. This board features the PCA9615, a 2-channel multipoint differential I2C bus buffer with hot-swap logic from NXP Semiconductors. The PCA9615 converts the two default I2C signals into four differential signals, two for SCL and two for SDA.

i2cextend2_click.png

Click Product page


Click library

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

Software Support

We provide a library for the I2CExtend2 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 I2CExtend2 Click driver.

Standard key functions :

  • i2cextend2_cfg_setup Config Object Initialization function.

    void i2cextend2_cfg_setup ( i2cextend2_cfg_t *cfg );
  • i2cextend2_init Initialization function.

    err_t i2cextend2_init ( i2cextend2_t *ctx, i2cextend2_cfg_t *cfg );

Example key functions :

  • i2cextend2_rmt_write Generic write data in Remote Mode function.

    void i2cextend2_rmt_write ( i2cextend2_t *ctx, uint8_t reg, uint8_t tx_data );
  • i2cextend2_rmt_read Generic read data in Remote Mode function.

    uint8_t i2cextend2_rmt_read ( i2cextend2_t *ctx, uint8_t reg );
  • i2cextend2_enable Enable extend function.

    void i2cextend2_enable ( i2cextend2_t *ctx, uint8_t en_extend );

Example Description

This is an example which demonstrates the use of I2C Extend 2 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 2 Click ( Remote Mode ), set default configuration and start measurement.


void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    i2cextend2_cfg_t i2cextend2_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.
    i2cextend2_cfg_setup( &i2cextend2_cfg );
    I2CEXTEND2_MAP_MIKROBUS( i2cextend2_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == i2cextend2_init( &i2cextend2, &i2cextend2_cfg ) ) 
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );
        for ( ; ; );
    }

    i2cextend2_enable( &i2cextend2, I2CEXTEND2_EXTEND_ENABLE );

    if ( C6DOFIMU11_WHO_AM_I_WIA_ID == i2cextend2_rmt_read( &i2cextend2, C6DOFIMU11_REG_WHO_AM_I ) ) 
    {
        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 ( ; ; );
    }
    i2cextend2_rmt_write ( &i2cextend2, C6DOFIMU11_REG_CNTL2, C6DOFIMU11_CNTL2_TEMP_EN_STANDBY_MODE |
                                                              C6DOFIMU11_CNTL2_MAG_EN_STANDBY_MODE |
                                                              C6DOFIMU11_CNTL2_ACCEL_EN_STANDBY_MODE );

    i2cextend2_rmt_write ( &i2cextend2, C6DOFIMU11_REG_INC3, C6DOFIMU11_INC3_IEL2_FIFO_TRIG |
                                                             C6DOFIMU11_INC3_IEL1_FIFO_TRIG );

    i2cextend2_rmt_write ( &i2cextend2, C6DOFIMU11_REG_CNTL2, C6DOFIMU11_CNTL2_GSEL_8G |
                                                              C6DOFIMU11_CNTL2_RES_MAX2 |
                                                              C6DOFIMU11_CNTL2_MAG_EN_OPERATING_MODE |
                                                              C6DOFIMU11_CNTL2_ACCEL_EN_OPERATING_MODE );
    Delay_ms ( 100 );
    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 2 Click ( Remote Mode ) which is connected by a LAN cable to I2C Extend 2 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" );

    i2cextend2_6dofimu11_get_axis( &i2cextend2, C6DOFIMU11_REG_ACCEL_XOUT_L );
    log_printf( &logger, "\t Accel X: %d\t|", axis );
    i2cextend2_6dofimu11_get_axis( &i2cextend2, C6DOFIMU11_REG_MAG_XOUT_L );
    log_printf( &logger, "\t Mag X: %d\r\n", axis );

    i2cextend2_6dofimu11_get_axis( &i2cextend2, C6DOFIMU11_REG_ACCEL_YOUT_L );
    log_printf( &logger, "\t Accel Y: %d\t|", axis );
    i2cextend2_6dofimu11_get_axis( &i2cextend2, C6DOFIMU11_REG_MAG_YOUT_L );
    log_printf( &logger, "\t Mag Y: %d\r\n", axis );

    i2cextend2_6dofimu11_get_axis( &i2cextend2, C6DOFIMU11_REG_ACCEL_ZOUT_L );
    log_printf( &logger, "\t Accel Z: %d\t|", axis );
    i2cextend2_6dofimu11_get_axis( &i2cextend2, 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.I2CExtend2

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

Temp-Hum 13 click

10

Temp&amp;Hum 13 Click is a Click board which is perfectly suited for measuring the relative humidity (RH) and temperature. The Click boardâ„¢ is equipped with the HTU21DF, an accurate and reliable sensor IC, packed in a miniature 3x3mm DFN package.

[Learn More]

Step Down 11 Click

0

Step Down 11 Click is a compact add-on board that converts higher voltages into lower voltage levels. This board features the TPSM82913, a low-noise and low-ripple buck power module from Texas Instruments.

[Learn More]

DIGI Isolator Click

0

DIGI Isolator Click is a compact add-on board that provides electrical isolation and signal conditioning for the serial peripheral interface and a UART interface. This board features two DCL540C01, high-speed, quad-channel digital isolators from Toshiba Semiconductor. Depending on the usage, this CMOS isolator can achieve data rates of up to 150Mbps, while withstanding up to 5kVrms voltage. DIGI Isolator Click is designed to isolate two additional IO pins besides SPI and UART interfaces.

[Learn More]