Diff: main.cpp

Revision:

0:533c9611eaa1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Dec 04 07:43:24 2020 +0000
@@ -0,0 +1,75 @@
+#include "mbed.h"
+#include "nRF24L01P.h"
+
+Serial pc(USBTX, USBRX); // tx, rx
+
+nRF24L01P my_nrf24l01p(SPI2_MOSI, SPI2_MISO, SPI2_SCLK, D9, D8, D1);    // 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;
+        }
+    }
+}