X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/72c5877a74d0859b8da12575470a54a3b0ab8128..d1057e7a2105d5e2696df185482176f22a5bd669:/armsrc/lfops.c

diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index c8924007..2079f263 100644
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -642,6 +642,19 @@ static void biphaseSimBit(uint8_t c, int *n, uint8_t clock, uint8_t *phase)
 		memset(dest+(*n), c ^ *phase, clock);
 		*phase ^= 1;
 	}
+	*n += clock;
+}
+
+static void stAskSimBit(int *n, uint8_t clock) {
+	uint8_t *dest = BigBuf_get_addr();
+	uint8_t halfClk = clock/2;
+	//ST = .5 high .5 low 1.5 high .5 low 1 high	
+	memset(dest+(*n), 1, halfClk);
+	memset(dest+(*n) + halfClk, 0, halfClk);
+	memset(dest+(*n) + clock, 1, clock + halfClk);
+	memset(dest+(*n) + clock*2 + halfClk, 0, halfClk);
+	memset(dest+(*n) + clock*3, 1, clock);
+	*n += clock*4;
 }
 
 // args clock, ask/man or askraw, invert, transmission separator
@@ -659,7 +672,7 @@ void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
 		for (i=0; i<size; i++){
 			biphaseSimBit(BitStream[i]^invert, &n, clk, &phase);
 		}
-		if (BitStream[0]==BitStream[size-1]){ //run a second set inverted to keep phase in check
+		if (phase==1) { //run a second set inverted to keep phase in check
 			for (i=0; i<size; i++){
 				biphaseSimBit(BitStream[i]^invert, &n, clk, &phase);
 			}
@@ -674,8 +687,10 @@ void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
 			}
 		}
 	}
-	
-	if (separator==1) Dbprintf("sorry but separator option not yet available"); 
+	if (separator==1 && encoding == 1)
+		stAskSimBit(&n, clk);
+	else if (separator==1)
+		Dbprintf("sorry but separator option not yet available");
 
 	Dbprintf("Simulating with clk: %d, invert: %d, encoding: %d, separator: %d, n: %d",clk, invert, encoding, separator, n);
 	//DEBUG
@@ -685,7 +700,7 @@ void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
 	//Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
 	//i+=16;
 	//Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
-
+	
 	if (ledcontrol) LED_A_ON();
 	SimulateTagLowFrequency(n, 0, ledcontrol);
 	if (ledcontrol) LED_A_OFF();