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Fork of nRF24L01P_Hello_World by
main.cpp
- Committer:
- sksarm
- Date:
- 2015-03-31
- Revision:
- 2:653be5496b69
- Parent:
- 1:5be2682710c6
File content as of revision 2:653be5496b69:
#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); Timer t; 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; int tmpDataCnt = 0; char tmpData[TRANSFER_SIZE+1]; 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 ) ) { t.start(); // 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] ); tmpData[tmpDataCnt++] = rxData[i]; } if ( tmpDataCnt >= TRANSFER_SIZE ) { tmpData[TRANSFER_SIZE] = '\0'; //pc.printf( "Received data : %s \r\n", tmpData); if (strcmp(tmpData, "ackn")) { tmpData[0] = 'a'; tmpData[1] = 'c'; tmpData[2] = 'k'; tmpData[3] = 'n'; //pc.printf( "Sending data : %s \r\n", "ackn"); my_nrf24l01p.write( NRF24L01P_PIPE_P0, tmpData, tmpDataCnt ); } else { t.stop(); pc.printf("\r\nThe time taken was %f seconds \r\n", t.read()); t.reset(); } tmpDataCnt = 0; } // Toggle LED2 (to help debug nRF24L01+ -> Host communication) myled2 = !myled2; } } }