main.cpp

00001 #include "mbed.h"
00002 #include "nRF24L01P.h"
00003 
00004 Serial pc(USBTX, USBRX); // tx, rx
00005 
00006 nRF24L01P my_nrf24l01p(PTD6, PTD7, PTD5, PTD4, PTB12, PTC18);    // mosi, miso, sck, csn, ce, irq
00007 
00008 //DigitalOut myled1(LED1);
00009 //DigitalOut myled2(LED2);
00010 
00011 int main() {
00012     
00013 // The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's
00014 //  "Nordic Serial Interface Board" (http://www.sparkfun.com/products/9019)
00015 //  only handles 4 byte transfers in the ATMega code.
00016 #define TRANSFER_SIZE   4
00017 
00018     char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
00019     int txDataCnt = 0;
00020     int rxDataCnt = 0;
00021     my_nrf24l01p.setRfFrequency(2400);
00022     my_nrf24l01p.powerUp();
00023     //my_nrf24l01p.setRfFrequency(2400);
00024     // Display the (default) setup of the nRF24L01+ chip
00025     pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
00026     pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
00027     pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
00028     pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
00029     pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
00030 
00031     pc.printf( "Type keys to test transfers:\r\n  (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
00032 
00033     my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
00034 
00035     my_nrf24l01p.setReceiveMode();
00036     my_nrf24l01p.enable();
00037 
00038     while (1) {
00039 
00040         // If we've received anything over the host serial link...
00041         if ( pc.readable() ) {
00042 
00043             // ...add it to the transmit buffer
00044             txData[txDataCnt++] = pc.getc();
00045             printf(txData);
00046             printf("\n\r");
00047             // If the transmit buffer is full
00048             if ( txDataCnt >= sizeof( txData ) ) {
00049                 //myled1 = !myled1;
00050                 // Send the transmitbuffer via the nRF24L01+
00051                 my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
00052 
00053                 txDataCnt = 0;
00054                 // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
00055                 
00056             }
00057 
00058             
00059         }
00060 
00061         // If we've received anything in the nRF24L01+...
00062         if ( my_nrf24l01p.readable() ) {
00063 
00064             // ...read the data into the receive buffer
00065             rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
00066 
00067             // Display the receive buffer contents via the host serial link
00068             for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ ) {
00069 
00070                 pc.putc( rxData[i] );
00071             }
00072 
00073             // Toggle LED2 (to help debug nRF24L01+ -> Host communication)
00074             //myled2 = !myled2;
00075         }
00076     }
00077 }