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mikroSDK Library

NFC 2 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.13

mikroSDK Library: 2.0.0.0

Category: RFID/NFC

Downloaded: 264 times

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License: MIT license  

NFC 2 Click is a compact add-on board that contains a highly integrated NFC transceiver for contactless communication. This board features the PN7150, the best plug&play high-performance full NFC solution with integrated firmware and NCI interface designed for contactless communication at 13.56 MHz from NXP USA Inc.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


NFC 2 Click

NFC 2 Click is a compact add-on board that contains a highly integrated NFC transceiver for contactless communication. This board features the PN7150, the best plug&play high-performance full NFC solution with integrated firmware and NCI interface designed for contactless communication at 13.56 MHz from NXP USA Inc.

nfc2_click.png

Click Product page


Click library

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

Software Support

We provide a library for the NFC2 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 NFC2 Click driver.

Standard key functions :

  • nfc2_cfg_setup Config Object Initialization function.

    void nfc2_cfg_setup ( nfc2_cfg_t *cfg );
  • nfc2_init Initialization function.

    err_t nfc2_init ( nfc2_t *ctx, nfc2_cfg_t *cfg );
  • nfc2_default_cfg Click Default Configuration function.

    err_t nfc2_default_cfg ( nfc2_t *ctx );

Example key functions :

  • nfc2_hw_reset HW reset function.

    void nfc2_hw_reset( nfc2_t *ctx );
  • nfc2_core_set_protocol_config Set protocol configuration function.

    void nfc2_core_set_protocol_config ( nfc2_t *ctx );
  • nfc2_cmd_card_disconnected Card disconnected command function.

    void nfc2_cmd_card_disconnected ( nfc2_t *ctx );

Example Description

This is an example which demonstrates the usage of NFC 2 Click board.

The demo application is composed of two sections :

Application Init

Initialization driver enables - I2C, hw reset, reseteting and initialize core, disabling standby mode, starting test procedure, set configuration and start discovery, also write log.


void application_init ( void ) {
    log_cfg_t log_cfg;  /**< Logger config object. */
    nfc2_cfg_t nfc2_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.
    nfc2_cfg_setup( &nfc2_cfg );
    NFC2_MAP_MIKROBUS( nfc2_cfg, MIKROBUS_1 );
    err_t init_flag = nfc2_init( &nfc2, &nfc2_cfg );
    if ( I2C_MASTER_ERROR == init_flag ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    log_printf( &logger, "        HW Reset       \r\n" );
    nfc2_hw_reset( &nfc2 );
    Delay_ms ( 100 );

    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, " Reset and Init. Core  \r\n" );
    nfc2_cmd_core_reset( &nfc2 );
    Delay_ms ( 100 );

    nfc2_read_ctrl_packet_data( &nfc2, &ctrl_pck_data );
    Delay_ms ( 100 );

    nfc2_cmd_core_init( &nfc2 );
    Delay_ms ( 100 );

    nfc2_read_ctrl_packet_data( &nfc2, &ctrl_pck_data );
    Delay_ms ( 100 );
    display_packet( &ctrl_pck_data );

    while ( nfc2_check_irq( &nfc2 ) == NFC2_IRQ_STATE_HIGH );

    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, " Disabling Standby Mode \r\n" );
    nfc2_cmd_disable_standby_mode( &nfc2 );
    Delay_ms ( 100 );

    nfc2_read_ctrl_packet_data( &nfc2, &ctrl_pck_data );
    Delay_ms ( 100 );
    display_packet( &ctrl_pck_data );

    nfc2_test_antenna( &nfc2, &ctrl_pck_data );

    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, "Starting Test Procedure\r\n" );
    nfc2_cmd_test_procedure( &nfc2 );
    Delay_ms ( 100 );

    nfc2_read_ctrl_packet_data( &nfc2, &ctrl_pck_data );
    Delay_ms ( 100 );
    display_packet( &ctrl_pck_data );

    nfc2_hw_reset( &nfc2 );
    Delay_ms ( 100 );

    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, "       NFC Config.     \r\n" );
    nfc2_default_cfg ( &nfc2, &ctrl_pck_data );

    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, "     Discovery Start   \r\n" );
    nfc2_cmd_start_discovery( &nfc2 );
    Delay_ms ( 100 );

    nfc2_read_ctrl_packet_data( &nfc2, &ctrl_pck_data );
    Delay_ms ( 100 );
    display_packet( &ctrl_pck_data );

    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, "-------- START --------\r\n" );
    log_printf( &logger, "-----------------------\r\n" );
    Delay_ms ( 500 );

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

Application Task

NFC 2 Click board can be used for detection of RFiD tag and displays it's value via USART terminal. All data logs write on USB uart changes for every 1 sec.


void application_task ( void ) {
    while ( nfc2_check_irq( &nfc2 ) == NFC2_IRQ_STATE_HIGH ) {
        nfc2_read_nfc_data ( &nfc2, &ctrl_pck_data );
    }

    while ( nfc2_check_irq( &nfc2 ) == NFC2_IRQ_STATE_LOW );

    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.NFC2

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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