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mikroSDK Library

ccRF click

Rating:

0

Author: MIKROE

Last Updated: 2019-07-31

Package Version: 1.0.0.1

mikroSDK Library: 1.0.0.0

Category: 2.4 GHz Transceivers

Downloaded: 7193 times

Followed by: 1 user

License: MIT license  

This is a sample program which demonstrates the use of ccRF click. Programmer uses RF module for communication between two development systems. Each module can be used as transmitter and receiver.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

ccRF click

ccRF click

Front and back side appearance of the ccRF T click Board.

View full image

Library Description

The library covers all the necessary functions to control ccRF Click board. A library performs the communication with the device via SPI interface with CC2500 low-power 2.4 GHz transceiver.

Key functions:

  • void ccrf_writeBytes( uint8_t regAddress, uint8_t *writeData, uint8_t nBytes ) - Sequential ( burst ) write function.
  • void ccrf_readBytes( uint8_t regAddress, uint8_t *readData, uint8_t nBytes ) - Sequential ( burst ) read function.
  • void ccrf_defaultConfiguration() - Default configuration function.

Examples description

The application is composed of the three sections :

  • System Initialization - Initializes SPI and LOG structures sets RST pin as input and CS and PWM pins as output and start to write log.
  • Application Initialization - Initialization driver enables - SPI, hardware reset chip, sets default configuration, sets operation mode, also write log.
  • Application Task - This is an example which demonstrates the use of ccRF click board. If RX mode selected, checks if new data byte has received in RX buffer ( ready for reading ) and if ready than reads one byte from RX buffer. In the second case, the application task writes received message data via UART. Results are being sent to the Usart Terminal where you can track their changes.
  • Commands : â€‹'T' - TX mode; 'R' - RX mode; 'I' - Idle mode;
void applicationTask()
{
    char receivedData;
    
    if ( UART_Rdy_Ptr() )
    {
        receivedData = UART_Rd_Ptr();

        switch ( receivedData )
        {
            case 'T' :
            {
                modeSelected = _CCRF_TX_MODE;
                mikrobus_logWrite( "       TX  Mode       ", _LOG_LINE );
                break;
            }
            case 'R' :
            {
                modeSelected = _CCRF_RX_MODE;
                mikrobus_logWrite( "       RX  Mode       ", _LOG_LINE );
                break;
            }
            case 'I' :
            {
                modeSelected = _CCRF_IDLE_MODE;
                mikrobus_logWrite( "      Idle  Mode      ", _LOG_LINE );
                break;
            }
        }
    }

    switch( modeSelected )
    {
        case _CCRF_TX_MODE:
        {
            lengthTx = sizeof( txBuffer );

            ccrf_transmitPacket( &txBuffer[ 0 ], lengthTx );
            Delay_ms( 1000 );
            break;
        }
        case _CCRF_RX_MODE:
        {
            lengthRx = sizeof( rxBuffer );

            if ( ccrf_receivePacket( &rxBuffer[ 0 ], &lengthRx ) )
            {
                for ( cnt = 0; cnt < lengthRx; cnt++ )
                {
                    mikrobus_logWrite( " rxBuffer[ ", _LOG_TEXT );
                    ByteToStr( cnt, logText );
                    ltrim( logText );
                    rtrim( logText );
                    mikrobus_logWrite( logText, _LOG_TEXT );
                    mikrobus_logWrite( " ] = ", _LOG_TEXT );
                    ByteToStr( rxBuffer[ cnt ], logText );
                    ltrim( logText );
                    mikrobus_logWrite( logText, _LOG_LINE );
                }

                mikrobus_logWrite( "----------------------", _LOG_LINE );
            }
            break;
        }
    }
}

Other mikroE Libraries used in the example:

  • SPI
  • UART
  • Conversion

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

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