main.cpp

00001 #include "mbed.h"
00002 #include "nRF24L01P.h"
00003 
00004 PinName nrfMOSI =   SPI_MOSI;
00005 PinName nrfMISO =   SPI_MISO;
00006 PinName nrfSCK =    SPI_SCK;
00007 PinName nrfCSN =    SPI_CS;
00008 PinName nrfCE =     D7;
00009 PinName nrfIRQ =    NC;
00010 
00011 Serial pc(USBTX, USBRX);
00012 nRF24L01P my_nrf24l01p(nrfMOSI, nrfMISO, nrfSCK, nrfCSN, nrfCE, nrfIRQ);
00013 
00014 int main()
00015 {
00016     const size_t TRANSFER_SIZE = 4;
00017     const size_t RECEIVER_SIZE = 4;
00018     
00019     char txData[TRANSFER_SIZE], rxData[RECEIVER_SIZE];
00020     int txDataCnt = 0;
00021     int rxDataCnt = 0;
00022  
00023     // Display the (default) setup of the nRF24L01+ chip
00024     pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
00025     pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
00026     pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
00027     pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
00028     pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
00029  
00030     pc.printf( "Type keys to test transfers:\r\n  (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
00031  
00032     my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
00033  
00034     my_nrf24l01p.setReceiveMode();
00035     my_nrf24l01p.enable();
00036     
00037     while (1) {
00038  
00039         // If we've received anything over the host serial link...
00040         if ( pc.readable() ) {
00041  
00042             // ...add it to the transmit buffer
00043             txData[txDataCnt++] = pc.getc();
00044  
00045             // If the transmit buffer is full
00046             if ( txDataCnt >= sizeof( txData ) ) {
00047  
00048                 // Send the transmitbuffer via the nRF24L01+
00049                 my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
00050  
00051                 txDataCnt = 0;
00052             }
00053         }
00054  
00055         // If we've received anything in the nRF24L01+...
00056         if ( my_nrf24l01p.readable() ) {
00057  
00058             // ...read the data into the receive buffer
00059             rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
00060  
00061             // Display the receive buffer contents via the host serial link
00062             for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ ) {
00063  
00064                 pc.putc( rxData[i] );
00065             }
00066         }
00067     }
00068 }