Josh Blackann / Mbed 2 deprecated nRF24L01P_Hello_World_DISCO_F401RE

Fork from nRF24L01P Hello World. This is working with the Nucleo STM32F401RE. Working on adding functionality to change parameters on the fly, such as changing the RF channel.

Dependencies:   mbed nRF24L01P

Fork of nRF24L01P_Hello_World by Owen Edwards

This is using the nRF24L01P radio with the Nucleo STM32F401RE board. The connections to the radio board from the STM32 are the following Radio - STM32F401RE CSN - PA4 CE - PC1 MOSI - PB5 SCK - PB3 IRQ - PC0 MISO - PB4

I am trying add functionality so that parameters can be changed on the fly instead of having to recompile the code to change the operation of the nRF24L01P (for example, changing the RF channel (frequency) through a terminal interface. )

main.cpp

Committer:
Owen
Date:
2011-01-19
Revision:
0:a51a6e7da590
Child:
1:5be2682710c6

File content as of revision 0:a51a6e7da590:

/**
 * @file main.cpp (nRF24L01P_Hello_World)
 *
 * @author Owen Edwards
 *
 * @section LICENSE
 *
 * Copyright (c) 2010 Owen Edwards
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * @section DESCRIPTION
 *
 * Demo the nRF24L01+ Library
 *
 * Datasheet:
 *
 * http://www.nordicsemi.no/files/Product/data_sheet/nRF24L01P_Product_Specification_1_0.pdf
 */

#include "mbed.h"
#include "nRF24L01P.h"

Serial pc(USBTX, USBRX); // tx, rx

nRF24L01P my_nrf24l01p(p5, p6, p7, p8, p9, p10);    // mosi, miso, sck, csn, ce, irq

DigitalOut myled1(LED1);
DigitalOut myled2(LED2);

int main() {

//
// The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's
//  "Nordic Serial Interface Board" (http://www.sparkfun.com/products/9019)
//  only handles 4 byte transfers in the ATMega code.
//
#define TRANSFER_SIZE   4

    char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
    int txDataCnt = 0;
    int rxDataCnt = 0;

    my_nrf24l01p.powerUp();

    //
    // Display the (default) setup of the nRF24L01+ chip
    //
    pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
    pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
    pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
    pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
    pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );

    pc.printf( "Type keys to test transfers:\r\n  (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );

    my_nrf24l01p.setTransferSize( TRANSFER_SIZE );

    my_nrf24l01p.setReceiveMode();
    my_nrf24l01p.enable();

    while (1) {

        //
        // If we've received anything over the host serial link...
        //
        if ( pc.readable() ) {

            //
            // ...add it to the transmit buffer
            //
            txData[txDataCnt++] = pc.getc();

            //
            // If the transmit buffer is full
            //
            if ( txDataCnt >= sizeof( txData ) ) {

                //
                // Send the transmitbuffer via the nRF24L01+
                //
                my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );

                txDataCnt = 0;

            }

            //
            // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
            //
            myled1 = !myled1;

        }

        //
        // If we've received anything in the nRF24L01+...
        //
        if ( my_nrf24l01p.readable() ) {

            //
            // ...read the data into the receive buffer
            //
            rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );

            //
            // Display the receive buffer contents via the host serial link
            //
            for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ ) {

                pc.putc( rxData[i] );

            }

            //
            // Toggle LED2 (to help debug nRF24L01+ -> Host communication)
            //
            myled2 = !myled2;

        }
    }
}