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;
+
+        }
+    }
+}