+ def RF_setsmac(self,mac):
+ """Set the source MAC address."""
+
+ #Register 0A is RX_ADDR_P0, five bytes.
+ self.poke(0x0A, mac, 5);
+ return mac;
+ def RF_gettmac(self):
+ """Return the target MAC address."""
+
+ #Register 0x10 is TX_ADDR, five bytes.
+ mac=self.peek(0x10, 5);
+ return mac;
+ def RF_settmac(self,mac):
+ """Set the target MAC address."""
+
+ #Register 0x10 is TX_ADDR, five bytes.
+ self.poke(0x10, mac, 5);
+ return mac;
+
+ def RF_rxpacket(self):
+ """Get a packet from the radio. Returns None if none is waiting."""
+ if self.peek(0x07) & 0x40:
+ #Packet has arrived.
+ self.writecmd(self.NRFAPP,0x80,0,None); #RX Packet
+ data=self.data;
+ self.poke(0x07,0x40);#clear bit.
+ return data;
+ elif self.peek(0x07)==0:
+ self.writecmd(self.NRFAPP,0x82,0,None); #Flush
+ self.poke(0x07,0x40);#clear bit.
+ return None;
+ def RF_txpacket(self,payload):
+ """Transmit a packet. Untested."""
+ if self.peek(0x07) & 0x40:
+ #Packet has arrived.
+ self.writecmd(self.NRFAPP,0x81,0,None); #RX Packet
+ data=self.data;
+ self.poke(0x07,0x40);#clear bit.
+ return data;
+ elif self.peek(0x07)==0:
+ self.writecmd(self.NRFAPP,0x83,0,None); #Flush
+ self.poke(0x07,0x40);#clear bit.
+ return None;
+
+ def RF_carrier(self):
+ """Hold a carrier wave on the present frequency."""
+ # Set CONT_WAVE, PLL_LOCK, and 0dBm in RF_SETUP
+ self.poke(0x06,8+10+4+2);
+
+ packetlen=16;
+ def RF_setpacketlen(self,len=16):
+ """Set the number of bytes in the expected payload."""
+ self.poke(0x11,len);
+ self.packetlen=len;
+ def RF_getpacketlen(self):
+ """Set the number of bytes in the expected payload."""
+ len=self.peek(0x11);
+ self.packetlen=len;
+ return len;
+ maclen=5;
+ def RF_getmaclen(self):
+ """Get the number of bytes in the MAC address."""
+ choices=[0, 3, 4, 5];
+ choice=self.peek(0x03)&3;
+ self.maclen=choices[choice];
+ return self.maclen;
+ def RF_setmaclen(self,len):
+ """Set the number of bytes in the MAC address."""
+ choices=["illegal", "illegal", "illegal",
+ 1, 2, 3];
+ choice=choices[len];
+ self.poke(0x03,choice);
+ self.maclen=len;