X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/deba67ab57d820d7201d05e9b57905b91256bc94..316493876a7783c9f195eb81a2d5e4212e4b9476:/common/lfdemod.c

diff --git a/common/lfdemod.c b/common/lfdemod.c
index c35ce561..b45a4097 100644
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -602,10 +602,11 @@ int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32
 		*hi2 = (*hi2<<1)|(*hi>>31);
 		*hi = (*hi<<1)|(*lo>>31);
 		//Then, shift in a 0 or one into low
+		*lo <<= 1;
 		if (dest[idx] && !dest[idx+1])  // 1 0
-			*lo=(*lo<<1)|1;
+			*lo |= 1;
 		else // 0 1
-			*lo=(*lo<<1)|0;
+			*lo |= 0;
 	}
 	return (int)startIdx;
 }
@@ -822,6 +823,19 @@ int NedapDemod(uint8_t *dest, size_t *size) {
 	return (int) startIdx;
 }
 
+// Find IDTEC PSK1, RF  Preamble == 0x4944544B, Demodsize 64bits
+// by iceman
+int IdteckDemodPSK(uint8_t *dest, size_t *size) {
+	//make sure buffer has data
+	if (*size < 64*2) return -1;	
+	size_t startIdx = 0;
+	uint8_t preamble[] = {0,1,0,0,1,0,0,1,0,1,0,0,0,1,0,0,0,1,0,1,0,1,0,0,0,1,0,0,1,0,1,1};
+	uint8_t errChk = preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx);
+	if (errChk == 0) return -2; //preamble not found
+	if (*size != 64) return -3; // wrong demoded size
+	return (int) startIdx;
+}
+
 // by marshmellow
 // to detect a wave that has heavily clipped (clean) samples
 uint8_t DetectCleanAskWave(uint8_t dest[], size_t size, uint8_t high, uint8_t low)