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);
+ #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;