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mikroSDK Library

1-Wire I2C Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.5

mikroSDK Library: 2.0.0.0

Category: 1-Wire

Downloaded: 128 times

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License: MIT license  

1-Wire I2C Click carries DS28E17 1-Wire-to-I2C master bridge from Analog Devices.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


1-Wire I2C Click

1-Wire I2C Click carries DS28E17 1-Wire-to-I2C master bridge from Analog Devices.

1wirei2c_click.png

Click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Feb 2024.
  • Type : One Wire type

Software Support

We provide a library for the 1-Wire I2C 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 1-Wire I2C Click driver.

Standard key functions :

  • c1wirei2c_cfg_setup Config Object Initialization function.

    void c1wirei2c_cfg_setup ( c1wirei2c_cfg_t *cfg );
  • c1wirei2c_init Initialization function.

    err_t c1wirei2c_init ( c1wirei2c_t *ctx, c1wirei2c_cfg_t *cfg );
  • c1wirei2c_default_cfg Click Default Configuration function.

    err_t c1wirei2c_default_cfg ( c1wirei2c_t *ctx );

Example key functions :

  • c1wirei2c_reset_device This function resets the device by toggling the RST pin state.

    void c1wirei2c_reset_device ( c1wirei2c_t *ctx );
  • c1wirei2c_write_data This function addresses and writes 1-255 bytes to an I2C slave without completing the transaction with a stop.

    err_t c1wirei2c_write_data ( c1wirei2c_t *ctx, uint8_t slave_addr, uint8_t *data_in, uint8_t len );
  • c1wirei2c_read_data_stop This function is used to address and read 1-255 bytes from an I2C slave in one transaction.

    err_t c1wirei2c_read_data_stop ( c1wirei2c_t *ctx, uint8_t slave_addr, uint8_t *data_out, uint8_t len );

Example Description

This example demonstrates the use of 1-Wire I2C Click board by reading the temperature measurement from connected Thermo 4 Click board.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration.


void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    c1wirei2c_cfg_t c1wirei2c_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.
    c1wirei2c_cfg_setup( &c1wirei2c_cfg );
    C1WIREI2C_MAP_MIKROBUS( c1wirei2c_cfg, MIKROBUS_1 );
    if ( ONE_WIRE_ERROR == c1wirei2c_init( &c1wirei2c, &c1wirei2c_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( C1WIREI2C_ERROR == c1wirei2c_default_cfg ( &c1wirei2c ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
}

Application Task

Reads the temperature measurement from connected Thermo 4 Click board and displays the results on the USB UART once per second.

void application_task ( void )
{
    float temperature = 0;
    uint8_t reg_data[ 2 ] = { 0 };
    uint8_t reg_addr = DEVICE_REG_TEMPERATURE;
    if ( ( C1WIREI2C_OK == c1wirei2c_write_data ( &c1wirei2c, DEVICE_SLAVE_ADDRESS, &reg_addr, 1 ) ) && 
         ( C1WIREI2C_OK == c1wirei2c_read_data_stop ( &c1wirei2c, DEVICE_SLAVE_ADDRESS, reg_data, 2 ) ) )
    {
        temperature = ( ( ( int16_t ) ( ( ( uint16_t ) reg_data[ 0 ] << 8 ) | 
                                                       reg_data[ 1 ] ) ) >> 5 ) * DEVICE_TEMPERATURE_RES;
        log_printf( &logger, "\r\n%s - Temperature: %.3f degC\r\n", ( char * ) DEVICE_NAME, temperature );
    }
    else
    {
        log_error( &logger, "%s - no communication!\r\n", ( char * ) DEVICE_NAME );
    }
    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.1WireI2C

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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