Revision 2:945fa201ce19, committed 2018-06-15

Comitter:

jblackann

Date:

Fri Jun 15 12:33:52 2018 +0000

Parent:

1:5be2682710c6

Commit message:

Modified to work with the Nucleo STM32F401RE board. Also adding functionality to change the channel through the terminal.

Changed in this revision

diff -r 5be2682710c6 -r 945fa201ce19 main.cpp
--- a/main.cpp	Wed Jan 19 23:53:19 2011 +0000
+++ b/main.cpp	Fri Jun 15 12:33:52 2018 +0000
@@ -3,11 +3,90 @@
 
 Serial pc(USBTX, USBRX); // tx, rx
 
-nRF24L01P my_nrf24l01p(p5, p6, p7, p8, p9, p10);    // mosi, miso, sck, csn, ce, irq
+/* this is being used with the nucleo F401RE */
+
+nRF24L01P my_nrf24l01p(PB_5, PB_4, PB_3, PA_4, PC_1 , PC_0);    // mosi, miso, sck, csn, ce, irq
+/*
+*  SPI_MOSI    = PB5, //previously PE_15, 
+*  SPI_MISO    = PB4, // previously PE_14, 
+*  SPI_SCK     = PB3, // previously PE_13, 
+*  SPI_CS      = PA4, // previously PE_12, 
+*  CE = PC1, // previously PE_10 
+*  IRQ = PC0 , // previously PE_11 
+*/
+
 
 DigitalOut myled1(LED1);
 DigitalOut myled2(LED2);
 
+void channelChangeMode (void)
+{
+  // NEEDS fixed to accept two digit number
+  #define   RF_CHANNEL_SIZE 2
+  
+    char stayInWhile = 1;
+    char receivedChannelCharacter;
+    int rf_channel = 2400;
+    int rf_channel_temp = 0;
+    char rf_channel_char[RF_CHANNEL_SIZE];
+    int rf_channelCnt = 0;
+    
+    pc.printf("Channel menu\n\r");
+    pc.printf("select channel as XX between 01 and 82\n\r");
+    while(stayInWhile)
+    {
+        pc.printf("waiting for Channel\n\r");
+         if ( pc.readable() ) 
+         {
+            receivedChannelCharacter = pc.getc();
+
+            if (receivedChannelCharacter >= '1' && receivedChannelCharacter <= '9') // if received 0 through 9 load transmit buffer
+            {
+                rf_channel_char[rf_channelCnt++] = pc.getc();
+
+                pc.printf("received a, %d\n\r", (receivedChannelCharacter - '0'));
+                
+                // If the transmit buffer is full
+                if ( rf_channelCnt >= sizeof( RF_CHANNEL_SIZE ) ) 
+                {
+                    //checkChannelValue();
+                    rf_channel_temp = (rf_channel_char[0]-0x30) * 10;
+                    rf_channel_temp += (rf_channel_char[1]-0x30);
+                    
+                    if((rf_channel_temp >= 1) && (rf_channel_temp <= 82))
+                    { 
+                        pc.printf("received valid number\n\r");
+                        pc.printf("new channel, %d\n\r", rf_channel_temp);
+                        rf_channel = rf_channel + rf_channel_temp; 
+                        pc.printf("new channel, %d\n\r", rf_channel);
+                        my_nrf24l01p.setRfFrequency(rf_channel);
+                        wait(1);
+                        pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
+                        stayInWhile = 0; 
+                    }
+                    else 
+                    {
+                        pc.printf(" invalid RF channel number\n\r");
+                    }
+                    
+                }
+            }
+            else if (receivedChannelCharacter == 'q' ) // if received q, exit channel change
+            {
+                pc.printf("exiting  Channel change mode\n\r");
+                stayInWhile = 0; 
+            }
+            else
+            {
+                pc.printf(" invalid number\n\r");
+            }
+        }
+        wait(1);
+    }
+    pc.printf("exiting  Channel change mode\n\r");
+    
+}
+
 int main() {
 
 // The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's
@@ -18,6 +97,7 @@
     char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
     int txDataCnt = 0;
     int rxDataCnt = 0;
+    char receivedTerminalCharacter;
 
     my_nrf24l01p.powerUp();
 
@@ -32,28 +112,49 @@
 
     my_nrf24l01p.setTransferSize( TRANSFER_SIZE );
 
+    my_nrf24l01p.setAirDataRate(NRF24L01P_DATARATE_250_KBPS);
+    pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
+
     my_nrf24l01p.setReceiveMode();
     my_nrf24l01p.enable();
 
     while (1) {
 
         // If we've received anything over the host serial link...
-        if ( pc.readable() ) {
+        if ( pc.readable() ) 
+        {
 
-            // ...add it to the transmit buffer
-            txData[txDataCnt++] = pc.getc();
-
-            // If the transmit buffer is full
-            if ( txDataCnt >= sizeof( txData ) ) {
+            receivedTerminalCharacter = pc.getc();
+            
+            if (receivedTerminalCharacter >= '0' && receivedTerminalCharacter <= '9') // if received 0 through 9 load transmit buffer
+            {    // ...add it to the transmit buffer
+                txData[txDataCnt++] = pc.getc();
 
-                // Send the transmitbuffer via the nRF24L01+
-                my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
+                // 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;
+                }
 
-                txDataCnt = 0;
+                // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
+                myled1 = !myled1;
+            } 
+            else if ((receivedTerminalCharacter == 'h') || (receivedTerminalCharacter == 'H')) 
+            {
+                pc.printf("Radio help menu\n\r");
+                pc.printf("Press c for channel: \n\r");
+                pc.printf("Press t for TX Power: \n\r");
+                pc.printf("Press d for datarate: \n\r");
+            } 
+            else if (receivedTerminalCharacter == 'c') 
+            {
+    
+                channelChangeMode();
             }
-
-            // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
-            myled1 = !myled1;
         }
 
         // If we've received anything in the nRF24L01+...

diff -r 5be2682710c6 -r 945fa201ce19 mbed.bld
--- a/mbed.bld	Wed Jan 19 23:53:19 2011 +0000
+++ b/mbed.bld	Fri Jun 15 12:33:52 2018 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e
+https://os.mbed.com/users/mbed_official/code/mbed/builds/994bdf8177cb
\ No newline at end of file