X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/4913be92ac529143d4ba7dffd5f709386c92dca5..b1ee7eed6589860b9aff964bedcf12520523a067:/common/lfdemod.c

diff --git a/common/lfdemod.c b/common/lfdemod.c
index e1fcbf73..fee55c92 100644
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -218,8 +218,8 @@ uint8_t Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx, uint32_
 	uint8_t FmtLen = 10; // sets of 4 bits = end data 
 	*startIdx = 0;
 	errChk = preambleSearch(BitStream, preamble, sizeof(preamble), size, startIdx);
-	if (errChk == 0 || *size < 64) return 0;
-	if (*size == 110) FmtLen = 22; // 22 sets of 4 bits
+	if ( errChk == 0 || (*size != 64 && *size != 128) ) return 0;
+	if (*size == 128) FmtLen = 22; // 22 sets of 4 bits
 
 	//skip last 4bit parity row for simplicity
 	*size = removeParity(BitStream, *startIdx + sizeof(preamble), 5, 0, FmtLen * 5);
@@ -288,6 +288,7 @@ int cleanAskRawDemod(uint8_t *BinStream, size_t *size, int clk, int invert, int
 }
 
 //by marshmellow
+//amplify based on ask edge detection
 void askAmp(uint8_t *BitStream, size_t size)
 {
 	uint8_t Last = 128;
@@ -1758,6 +1759,10 @@ bool DetectST(uint8_t buffer[], size_t *size, int *foundclock) {
 			for(i=0; i < clk/2-tol; ++i) {
 				buffer[dataloc+i] = high+5;
 			}
+		} //test for single sample outlier (high between two lows) in the case of very strong waves
+		if (buffer[dataloc] >= high && buffer[dataloc+2] <= low) {
+			buffer[dataloc] = buffer[dataloc+2];
+			buffer[dataloc+1] = buffer[dataloc+2];
 		}
 		for (i=0; i<datalen; ++i) {
 			if (i+newloc < bufsize) {