main.cpp

00001 #include "mbed.h"
00002 #include "nRF24L01P.h"
00003 #define IWDG_START 0x0000CCCC
00004 #define IWDG_WRITE_ACCESS 0x00005555
00005 #define IWDG_PR_PR_0 7
00006 #define IWDG_RELOAD 512*100
00007 #define IWDG_REFRESH 0xAAAA
00008 Serial pc(USBTX, USBRX); // tx, rx
00009 
00010 nRF24L01P my_nrf24l01p(D4,D5,D3,D10,D8,D9);    // mosi, miso, sck, csn, ce, irq
00011 
00012 
00013 int main()
00014 {
00015 //                          
00016     //              pLATHALTER FÜR ANSHCALTEN ÜBER GPIO
00017         //
00018         
00019 // The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's
00020 //  "Nordic Serial Interface Board" (http://www.sparkfun.com/products/9019)
00021 //  only handles 4 byte transfers in the ATMega code.
00022 #define TRANSFER_SIZE   2
00023 
00024     char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
00025     int txDataCnt = 0;
00026     int rxDataCnt = 0;
00027 
00028     my_nrf24l01p.powerUp();
00029     my_nrf24l01p.setAirDataRate(250);
00030     my_nrf24l01p.setTxAddress(0xE7E7E7E7E1,5);
00031     my_nrf24l01p.setRxAddress(0xE7E7E7E7E7,5,0);
00032     // Display the (default) setup of the nRF24L01+ chip
00033     pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
00034     pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
00035     pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
00036     pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
00037     pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
00038 
00039     pc.printf( "Type keys to test transfers:\r\n  (transfers are grouped into %d characters)\r\n", TRANSFER_SIZE );
00040 
00041     my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
00042 
00043     my_nrf24l01p.setTransmitMode();
00044     my_nrf24l01p.enable();
00045     txData[1] = 2;
00046     txData[0] = 23;
00047     txDataCnt =1;
00048     IWDG->KR=IWDG_START;
00049     IWDG->KR=IWDG_WRITE_ACCESS;
00050     IWDG->PR=IWDG_PR_PR_0;
00051     IWDG->RLR=IWDG_RELOAD;
00052     while(IWDG->SR) {
00053         wait(0.1);
00054     }
00055     my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
00056     wait(1);
00057     IWDG->KR=IWDG_REFRESH; /* (6) */
00058     pc.printf("go to sleep");
00059     deepsleep();
00060     while (1) {
00061 
00062         /*
00063         // If we've received anything over the host serial link...
00064         if ( pc.readable() ) {
00065 
00066             // ...add it to the transmit buffer
00067             txData[txDataCnt++] = pc.getc();
00068 
00069             // If the transmit buffer is full
00070             if ( txDataCnt >= sizeof( txData ) ) {
00071 
00072                 // Send the transmitbuffer via the nRF24L01+
00073                 my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
00074 
00075                 txDataCnt = 0;
00076             }
00077 
00078             // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
00079            // myled1 = !myled1;
00080         }
00081 
00082         // If we've received anything in the nRF24L01+...
00083         if ( my_nrf24l01p.readable() ) {
00084 
00085             // ...read the data into the receive buffer
00086             rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
00087 
00088             // Display the receive buffer contents via the host serial link
00089             for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ ) {
00090 
00091                 pc.putc( rxData[i] );
00092             }
00093 
00094             // Toggle LED2 (to help debug nRF24L01+ -> Host communication)
00095             //myled2 = !myled2;
00096         }
00097         */
00098     }
00099 }