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mikroSDK Library

DTMF Generator 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: Signal processing

Downloaded: 367 times

Not followed.

License: MIT license  

DTMF Generator Click is a compact add-on board that generates DTMF (Dual-Tone Multi-Frequency) signals designed for MCU interfaces. This board features the HT9200A, a dual-tone multi-frequency decoder mostly used in mobile communications systems from Holtek Semiconductor Inc.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


DTMF Generator Click

DTMF Generator Click is a compact add-on board that generates DTMF (Dual-Tone Multi-Frequency) signals designed for MCU interfaces. This board features the HT9200A, a dual-tone multi-frequency decoder mostly used in mobile communications systems from Holtek Semiconductor Inc.

dtmfgenerator_click.png

Click Product page


Click library

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

Software Support

We provide a library for the DTMFGenerator 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 DTMFGenerator Click driver.

Standard key functions :

  • dtmfgenerator_cfg_setup Config Object Initialization function.

    void dtmfgenerator_cfg_setup ( dtmfgenerator_cfg_t *cfg );
  • dtmfgenerator_init Initialization function.

    err_t dtmfgenerator_init ( dtmfgenerator_t *ctx, dtmfgenerator_cfg_t *cfg );

Example key functions :

  • dtmfgenerator_set_dat Set DATA ( RST ) pin state function.

    void dtmfgenerator_set_dat ( dtmfgenerator_t *ctx, uint8_t pin_state );
  • dtmfgenerator_power_on Power ON function.

    void dtmfgenerator_power_on ( dtmfgenerator_t *ctx );
  • dtmfgenerator_transmit_out_tone The function transmit duration time of the desired tone.

    void dtmfgenerator_transmit_out_tone ( dtmfgenerator_t *ctx, uint8_t out_tone, uint16_t delay_m_s );

Example Description

This is an example which demonstrates the use of DTMF Generator Click board.

The demo application is composed of two sections :

Application Init

Initialization driver enables - GPIO, run the power-on sequence, also write log.


void application_init ( void ) {
    log_cfg_t log_cfg;  /**< Logger config object. */
    dtmfgenerator_cfg_t dtmfgenerator_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.
    dtmfgenerator_cfg_setup( &dtmfgenerator_cfg );
    DTMFGENERATOR_MAP_MIKROBUS( dtmfgenerator_cfg, MIKROBUS_1 );
    if ( DIGITAL_OUT_UNSUPPORTED_PIN == dtmfgenerator_init( &dtmfgenerator, &dtmfgenerator_cfg ) ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }
    log_printf( &logger, " Powering on device \r\n" );
    log_printf( &logger, "--------------------\r\n" );
    dtmfgenerator_power_on( &dtmfgenerator );
    Delay_ms ( 1000 );
    log_info( &logger, " Application Task " );
}

Application Task

DTMF Generator Click board DTMF generator transmits the signal for generating tone for digits : "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "*" and "#". All data logs write on USB uart changes.


void application_task ( void ) {
    log_printf( &logger, " TONE      '0' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_0, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '1' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_1, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '2' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_2, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '3' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_3, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '4' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_4, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '5' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_5, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '6' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_6, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '7' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_7, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '8' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_8, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '9' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_9, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      'A' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_A, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      'B' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_B, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      'C' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_C, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      'D' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_D, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '*' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_ASTERISK, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );

    log_printf( &logger, " TONE      '#' \r\n");
    log_printf( &logger, "---------------\r\n" );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_HASH, signal_duration );
    dtmfgenerator_transmit_out_tone( &dtmfgenerator, DTMFGENERATOR_OUT_TONE_STOP, signal_duration );
 }

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.DTMFGenerator

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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