"\tmust be moved into the client.\n"
};
-
-#define RADIOACTIVE CLRCE
-#define RADIOPASSIVE SETCE
-
//! Set up the pins for CCSPI mode.
void ccspisetup(){
SPIDIR&=~MISO;
DIRSS;
DIRCE;
- //Telos B Radio VReg Enable
- P4DIR|=BIT5+BIT2+BIT6+BIT7;
- P4OUT|=BIT5+BIT7;
- P4OUT&=~(BIT6+BIT2);
+ P4OUT|=BIT5; //activate CC2420 voltage regulator
+ msdelay(100);
+
+ //Reset the CC2420.
+ P4OUT&=~BIT6;
+ P4OUT|=BIT6;
//Begin a new transaction.
- CLRSS;
+ CLRSS;
SETSS;
}
//debugstr("Chipcon SPI handler.");
switch(verb){
+ case PEEK:
+ cmddata[0]|=0x40; //Set the read bit.
+ //DO NOT BREAK HERE.
case READ:
case WRITE:
+ case POKE:
CLRSS; //Drop !SS to begin transaction.
for(i=0;i<len;i++)
cmddata[i]=ccspitrans8(cmddata[i]);
SETSS; //Raise !SS to end transaction.
txdata(app,verb,len);
break;
-
- case PEEK://Grab CCSPI Register
- CLRSS; //Drop !SS to begin transaction.
- cmddata[0]=ccspitrans8(/*CCSPI_R_REGISTER |*/ cmddata[0]); //000A AAAA
- for(i=1;i<len;i++)
- cmddata[i]=ccspitrans8(cmddata[i]);
- SETSS; //Raise !SS to end transaction.
- txdata(app,verb,len);
- break;
-
- case POKE://Poke CCSPI Register
- CLRSS; //Drop !SS to begin transaction.
- cmddata[0]=ccspitrans8(/* CCSPI_W_REGISTER |*/ 0x40 | cmddata[0]); //02AA AAAA
- for(i=1;i<len;i++)
- cmddata[i]=ccspitrans8(cmddata[i]);
- SETSS; //Raise !SS to end transaction.
- txdata(app,verb,len);
- break;
case SETUP:
ccspisetup();
txdata(app,verb,0);
break;
case CCSPI_RX:
- //Get the packet.
- CLRSS;
- ccspitrans8(CCSPI_RXFIFO);
- for(i=0;i<32;i++)
- cmddata[i]=ccspitrans8(0xde);
- SETSS;
- //no break
- txdata(app,verb,32);
+#ifdef FIFOP
+ //Has there been an overflow?
+ if((!FIFO)&&FIFOP){
+ debugstr("Clearing overflow");
+ CLRSS;
+ ccspitrans8(0x08); //SFLUSHRX
+ SETSS;
+ }
+
+ //Is there a packet?
+ if(FIFOP&&FIFO){
+ //Wait for completion.
+ while(SFD);
+
+ //Get the packet.
+ CLRSS;
+ ccspitrans8(CCSPI_RXFIFO | 0x40);
+ //ccspitrans8(0x3F|0x40);
+ cmddata[0]=0xff; //to be replaced with length
+ for(i=0;i<cmddata[0]+2;i++)
+ cmddata[i]=ccspitrans8(0xde);
+ SETSS;
+
+ //Flush buffer.
+ CLRSS;
+ ccspitrans8(0x08); //SFLUSHRX
+ SETSS;
+ txdata(app,verb,cmddata[0]+2);
+ }else{
+ //No packet.
+ txdata(app,verb,0);
+ }
+#else
+ debugstr("Can't RX a packet with SFD and FIFOP definitions.");
+ txdata(app,NOK,0);
+#endif
break;
case CCSPI_RX_FLUSH:
//Flush the buffer.
ccspitrans8(CCSPI_SFLUSHRX);
SETSS;
- //Return the packet.
- txdata(app,verb,32);
+ txdata(app,verb,0);
+ break;
+ case CCSPI_REFLEX:
+ debugstr("Coming soon.");
+ txdata(app,verb,0);
break;
- case CCSPI_TX:
case CCSPI_TX_FLUSH:
+ //Flush the buffer.
+ CLRSS;
+ ccspitrans8(CCSPI_SFLUSHTX);
+ SETSS;
+
+ txdata(app,verb,0);
+ break;
+ case CCSPI_TX:
+#ifdef FIFOP
+
+ //Wait for last packet to TX.
+ //while(ccspi_status()&BIT3);
+
+ //Load the packet.
+ CLRSS;
+ ccspitrans8(CCSPI_TXFIFO);
+ for(i=0;i<cmddata[0];i++)
+ ccspitrans8(cmddata[i]);
+ SETSS;
+
+ //Transmit the packet.
+ CLRSS;
+ ccspitrans8(0x04); //STXON
+ SETSS;
+
+ //Wait for the pulse on SFD, after which the packet has been sent.
+ while(!SFD);
+ while(SFD);
+
+ //Flush TX buffer.
+ CLRSS;
+ ccspitrans8(0x09); //SFLUSHTX
+ SETSS;
+
+ txdata(app,verb,0);
+#else
+ debugstr("Can't TX a packet with SFD and FIFOP definitions.");
+ txdata(app,NOK,0);
+#endif
+ break;
default:
- debugstr("Not yet supported.");
+ debugstr("Not yet supported in CCSPI");
txdata(app,verb,0);
break;
}