Nordic RF client library, test script.

git-svn-id: https://svn.code.sf.net/p/goodfet/code/trunk@533 12e2690d-a6be-4b82-a7b7-67c4a43b65c8

diff --git a/client/GoodFETNRF.py b/client/GoodFETNRF.py
new file mode 100644 (file)
index 0000000..0c62cdf
--- /dev/null
+++ b/client/GoodFETNRF.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python
+# GoodFET Nordic RF Radio Client
+# 
+# (C) 2009 Travis Goodspeed <travis at radiantmachines.com>
+#
+# This code is being rewritten and refactored.  You've been warned!
+
+import sys, time, string, cStringIO, struct, glob, serial, os;
+
+from GoodFET import GoodFET;
+
+class GoodFETNRF(GoodFET):
+    NRFAPP=0x50;
+    def NRFsetup(self):
+        """Move the FET into the NRF application."""
+        self.writecmd(self.NRFAPP,0x10,0,self.data); #NRF/SETUP
+        
+    def NRFtrans8(self,byte):
+        """Read and write 8 bits by NRF."""
+        data=self.NRFtrans([byte]);
+        return ord(data[0]);
+    
+    def NRFtrans(self,data):
+        """Exchange data by NRF."""
+        self.data=data;
+        self.writecmd(self.NRFAPP,0x00,len(data),data);
+        return self.data;
+    
+    def peek(self,reg,bytes=1):
+        """Read an NRF Register.  For long regs, result is flipped."""
+        data=[reg,0,0,0,0,0];
+        self.writecmd(self.NRFAPP,0x02,len(data),data);
+        toret=0;
+        for i in range(0,bytes):
+            toret=toret|(ord(self.data[i+1])<<(8*i));
+        return toret;
+    def poke(self,reg,val,bytes=1):
+        """Write an NRF Register."""
+        data=[reg];
+        for i in range(0,bytes):
+            data=data+[(val>>(8*i))&0xFF];
+        self.writecmd(self.NRFAPP,0x03,len(data),data);
+        if self.peek(reg,bytes)!=val:
+            print "Warning, failed to set register %02x." %reg;
+        return;
+    
+    def status(self):
+        """Read the status byte."""
+        self.poke(0x07,0x78); #Reset status
+        status=self.peek(0x07);
+        print "Status=%02x" % status;
+    
+    #Radio stuff begins here.
+    def RF_freq(self,frequency):
+        """Set the frequency in Hz."""
+        
+        #On the NRF24L01+, register 0x05 is the offset in
+        #MHz above 2400.
+        
+        mhz=frequency/1000000-2400;
+        print "Setting channel %i." % mhz 
+        self.poke(0x05,mhz);
+    def RF_getsmac(self):
+        """Return the source MAC address."""
+        
+        #Register 0A is RX_ADDR_P0, five bytes.
+        mac=self.peek(0x0A, 5);
+        return mac;

diff --git a/client/goodfet.nrf b/client/goodfet.nrf
index c29ca1a..1a5a503 100755 (executable)
--- a/client/goodfet.nrf
+++ b/client/goodfet.nrf
@@ -35,11 +35,16 @@ if(sys.argv[1]=="test"):
     client.poke(0x06,8+10+4+2); 
     client.RF_freq(2480 * 10**6);
     
-    #Print register, no idea why.
-    for r in range(0,30):
-        print "r[0x%02x]=0x%02x" % (r,client.peek(r));
-    print "SMAC=%010x" % client.RF_getsmac();
+    #Print registers, just for fun.
+    print "SMAC was %010x" % client.RF_getsmac();
+    
+    client.poke(0x0A,0xDEADBEEF,5);
+    print "SMAC set to %010x" % client.RF_getsmac();
+    if client.RF_getsmac()!=0xdeadbeef:
+        print "ERROR: Failed to set MAC address.";
 
 if(sys.argv[1]=="regs"):
     for r in range(0,30):
         print "r[0x%02x]=0x%02x" % (r,client.peek(r));
+
+