#Set up the radio for ZigBee
self.strobe(0x01); #SXOSCON
+ self.strobe(0x02); #SCAL
self.poke(0x11, 0x0AC2); #MDMCTRL0
self.poke(0x12, 0x0500); #MDMCTRL1
self.poke(0x1C, 0x007F); #IOCFG0
self.poke(0x19, 0x01C4); #SECCTRL0, disabling crypto
+ self.RF_setsync();
def ident(self):
return self.peek(0x1E); #MANFIDL
return 0;
def RF_setrate(self,rate=0):
return 0;
+ def RF_getsync(self):
+ return self.peek(0x14);
+ def RF_setsync(self,sync=0xa70F):
+ """Set the SYNC preamble.
+ Use 0xA70F for 0xA7."""
+ self.poke(0x14,sync);
+ return;
+
def RF_setfreq(self,frequency):
"""Set the frequency in Hz."""
mhz=frequency/1000000;
- fsctrl=self.peek(0x18)&~0x3FF;
+ fsctrl=0x8000; #self.peek(0x18)&(~0x3FF);
fsctrl=fsctrl+int(mhz-2048)
self.poke(0x18,fsctrl);
+ self.strobe(0x02);
def RF_getfreq(self):
"""Get the frequency in Hz."""
fsctrl=self.peek(0x18);
mhz=2048+(fsctrl&0x3ff)
return mhz*1000000;
+ def RF_setchan(self,channel):
+ if channel < 11 or channel > 26:
+ print "Only 802.15.4 channels 11 to 26 are currently supported.";
+ else:
+ self.RF_setfreq( ( (channel-11)*5 + 2405 ) * 1000000 );
def RF_getsmac(self):
"""Return the source MAC address."""
return 0xdeadbeef;
contents.
"""
- # TODO -- Flush only if there's an overflow.
- #self.strobe(0x08); #SFLUSHRX
-
data="\0";
self.data=data;
self.writecmd(self.CCSPIAPP,0x80,len(data),data);
if(len(buffer)==0):
return None;
return buffer;
- def RF_rxpacket_old(self):
- """Get a packet from the radio. Returns None if none is waiting. In
- order to not require the SFD, FIFO, or FIFOP lines, this
- implementation works by comparing the buffer to the older
- contents.
- """
- self.strobe(0x03); #SRXON
- self.strobe(0x08); #SFLUSHRX
-
- buffer=range(0,0xff);
- buffer[0]=0x3F | 0x40; #RXFIFO
- buffer=self.trans(buffer);
-
- new=False;
- for foo in range(0,ord(buffer[0])):
- if buffer[foo]!=self.lastpacket[foo]:
- new=True;
- if not new:
- return None;
-
-
- self.lastpacket=buffer;
- return buffer;
+ def RF_txpacket(self,packet):
+ """Send a packet through the radio."""
+ self.writecmd(self.CCSPIAPP,0x81,len(packet),packet);
+ #time.sleep(1);
+ #self.strobe(0x09);
+ return;
+
+
+ def RF_modulated_spectrum(self):
+ """Hold a carrier wave on the present frequency."""
+ # print "Don't know how to hold a carrier.";
+ # 33.1 p.55:
+ # reset chip
+ # SXOSCON
+ # set MDMCTRL1.TX_MODE to 3 0x12 3:2
+ # STXON 0x04
+
+ mdmctrl1=self.peek(0x12);
+ #print "mdmctrl1 was %04x" % mdmctrl1;
+ mdmctrl1=mdmctrl1|0x00c0; #MDMCTRL1.TX_MODE = 3
+ self.poke(0x12, mdmctrl1); #MDMCTRL1
+
+ mdmctrl1=self.peek(0x12);
+ #print "mdmctrl1 is %04x" % mdmctrl1;
+
+ # http://e2e.ti.com/support/low_power_rf/f/155/t/15914.aspx?PageIndex=2
+ # suggests this
+ self.strobe(0x02); #STXCAL
+ #print "STXCAL status: %s" % self.status()
+
+ # is this necessary?
+ self.strobe(0x09); #SFLUSHTX
+ #print "SFLUSHTX status: %s" % self.status()
+
+ self.strobe(0x04); #STXON
+ #print "STXON status: %s" % self.status()
+
def RF_carrier(self):
"""Hold a carrier wave on the present frequency."""
- print "Don't know how to hold a carrier.";
+ # print "Don't know how to hold a carrier.";
+ # 33.1 p.54:
+ # reset chip
+ # SXOSCON
+ # set MDMCTRL1.TX_MODE to 2 or 3 0x12 3:2
+ # set DACTST to 0x1800 0x2E
+ # STXON 0x04
+
+ mdmctrl1=self.peek(0x12);
+ #print "mdmctrl1 was %04x" % mdmctrl1;
+ mdmctrl1=mdmctrl1|0x0080;
+ mdmctrl1=mdmctrl1&0x0080; #MDMCTRL1.TX_MODE = 2
+ self.poke(0x12, mdmctrl1); #MDMCTRL1
+
+ mdmctrl1=self.peek(0x12);
+ #print "mdmctrl1 is %04x" % mdmctrl1;
+
+ self.poke(0x2E, 0x1800); #DACTST
+ dactst=self.peek(0x2E);
+ #print "dactst is %04x" % dactst;
+
+ # see above for why this is here
+ self.strobe(0x02); #STXCAL
+ #print "STXCAL status: %s" % self.status()
+ self.strobe(0x09); #SFLUSHTX
+ #print "SFLUSHTX status: %s" % self.status()
+
+ self.strobe(0x04); #STXON
+ #print "STXON status: %s" % self.status()
+
def RF_promiscuity(self,promiscuous=1):
mdmctrl0=self.peek(0x11);
- #print "mdmctrl0 was %04x" % mdmctrl0;
- mdmctrl0=mdmctrl0&(~0x800);
- #print "mdmctrl0 is now %04x" % mdmctrl0;
+ if promiscuous>0:
+ mdmctrl0=mdmctrl0&(~0x800);
+ else:
+ mdmctrl0=mdmctrl0|0x800;
+ self.poke(0x11,mdmctrl0);
+ return;
+ def RF_autocrc(self,autocrc=1):
+ mdmctrl0=self.peek(0x11);
+ if autocrc==0:
+ mdmctrl0=mdmctrl0&(~0x0020);
+ else:
+ mdmctrl0=mdmctrl0|0x0020;
self.poke(0x11,mdmctrl0);
return;
-
packetlen=16;
def RF_setpacketlen(self,len=16):
"""Set the number of bytes in the expected payload."""
choice=choices[len];
self.poke(0x03,choice);
self.maclen=len;
+ def printpacket(self,packet):
+ s="";
+ i=0;
+ for foo in packet:
+ s="%s %02x" % (s,ord(foo));
+ print "#%s" % s;
+
+ def printdissect(self,packet):
+ try:
+ from scapy.all import Dot15d4
+ except ImportError:
+ print "To use packet disection, Scapy must be installed and have the Dot15d4 extension present."
+ print "try: hg clone http://hg.secdev.org/scapy-com";
+ print " sudo ./setup.py install";
+ self.printpacket(packet);
+ try:
+ scapyd = Dot15d4(packet[1:]);
+ scapyd.show();
+ except:
+ pass;
projects / goodfet / blobdiff