RFID/ArbitrateState.c at main · bbcgi/RFID · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
#include "EPC_STATE.h"

void ArbitrateStateFunction(){
	GLED=LED_ON;

	halRFSetRxTxOff(RF_RX, &RF_SETTINGS, &RF_CALDATA); //¥´¶}RX
	halRandomNumberGen((byte*)&RN_16,2);

	while(1){
	//±µ¦¬¸ê®Æ
	ReciveByte = halRFReceivePacket(10,&buffer,64,0,CC1010EB_CLKFREQ) ;
	if(ReciveByte==0)continue;

	command = buffer[0] ;
	//¤À¿ë«ü¥O
	switch(command){
		case SINGLE_SELECT_HEADER:
			AnswerToSingleSelect((MySelect*)&buffer);
			return;
		case SELECT_HEADER :
			AnswerToSelect((MySelect*)&buffer);
			return;
		case QUERY_HEADER  :
			AnswerToQuery((MyQuery*)&buffer) ;
			return;
		case QUERY_REP_HEADER :
			if( SlotCounter==0x0000 ){
				/*if slot=0 roll over 7fffh ,else decrement */
				SlotCounter = 0x7FFF ;
				/*if slot=0 go to Reply,reply new RN16 */

				halRFSetRxTxOff(RF_TX, &RF_SETTINGS, &RF_CALDATA);
				halRFSendPacket(PREAMBLE_BYTE_COUNT,(byte*)&RN_16,2);
				halRFSetRxTxOff(RF_RX, &RF_SETTINGS, &RF_CALDATA);
				state=ReplyState;
				return ;
			}else{
				SlotCounter--;
				/*if slot<>0 remain in Arbitrate Reply None*/
				continue;
				//mainFunctionPointer=&ArbitrateStateFunction;
				//return ;
			}
			break;
		case QUERY_ADJUST_HEADER :
			QueryAdjustCommand=(MyQueryAdjust*)&buffer;
			switch(QueryAdjustCommand->UpDn){
				case 0x06:
					BackupQ++;
					break;
				case 0x03:
					if(BackupQ>=2){
						BackupQ--;
					}
					break;
				default:
					break;
			}
			//halRandomNumberGen((byte*)&SlotCounter ,2 );
			SlotCounter=GeneratorSlotCounter(BackupQ);

			if(SlotCounter != 0)
			{
				state=ArbitrateState;
				return ;
			}
			else
			{
				state=ReplyState;
				return ;
			}
			break;
		default:
			state=ArbitrateState;    //Remain in Arbitrate
			return ;
		}
	}
}