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四轴
Dependencies: BufferedSerial SoftPWM mbed send
Fork of send_copy by
Diff: main.cpp
- Revision:
- 0:a51a6e7da590
- Child:
- 1:5be2682710c6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Jan 19 23:26:02 2011 +0000 @@ -0,0 +1,135 @@ +/** + * @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; + + } + } +}