X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c0afa86f7539fbf40f053cfc13041f5e1f245378..8fd9bfb0e334dd59583d1d597d2549577a22972e:/common/lfdemod.c?ds=sidebyside

diff --git a/common/lfdemod.c b/common/lfdemod.c
index f27ffff3..f797911c 100644
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -764,6 +764,19 @@ int PyramiddemodFSK(uint8_t *dest, size_t *size)
 	return (int)startIdx;
 }
 
+// find presco preamble 0x10D in already demoded data
+int NedapDemod(uint8_t *dest, size_t *size) {
+	//make sure buffer has data
+	if (*size < 128) return -3;
+
+	size_t startIdx = 0;
+	//uint8_t preamble[] = {1,1,1,1,1,1,1,1,1,0,0,0,1};
+	uint8_t preamble[] = {1,1,1,1,1,1,1,1,1,0};
+	uint8_t errChk = preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx);
+	if (errChk == 0) return -4; //preamble not found
+	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)