txdata(app,verb,0);
break;
case CCSPI_RX:
- #ifdef FIFOP
- //Wait for any incoming packet to finish.
- //while(!SFD);
- while(SFD);
- delay(1000);
-
+#ifdef FIFOP
+ //Has there been an overflow?
+ if((!FIFO)&&FIFOP){
+ debugstr("Clearing overflow");
+ CLRSS;
+ ccspitrans8(0x08); //SFLUSHRX
+ SETSS;
+ }
//Is there a packet?
- if((!SFD)){
+ if(FIFOP&&FIFO){
+ //Wait for completion.
+ while(SFD);
+
//Get the packet.
CLRSS;
- //ccspitrans8(CCSPI_RXFIFO);
- ccspitrans8(0x3F|0x40);
- cmddata[1]=0xff; //to be replaced with length
- for(i=0;i<cmddata[1];i++)
+ 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;
- txdata(app,verb,cmddata[0]);
+
+ //Flush buffer.
+ CLRSS;
+ ccspitrans8(0x08); //SFLUSHRX
+ SETSS;
+ txdata(app,verb,cmddata[0]+2);
}else{
//No packet.
txdata(app,verb,0);
}
- #else
+#else
debugstr("Can't RX a packet with SFD and FIFOP definitions.");
txdata(app,NOK,0);
- #endif
+#endif
break;
case CCSPI_RX_FLUSH:
//Flush the buffer.
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;
}