X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/ab812dfae5f0b2ac3fbc127f293ff65d85922ed7..571324a5c4b3edf7460633ca66ca5081aa4fdc6b:/common/lfdemod.c

diff --git a/common/lfdemod.c b/common/lfdemod.c
index b067098d..3f597a1f 100644
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -1770,8 +1770,8 @@ bool DetectST_ext(uint8_t buffer[], size_t *size, int *foundclock, size_t *ststa
 			buffer[dataloc+1] = buffer[dataloc+2];
 		}
 		if (firstrun) {
-			*ststart = dataloc;
-			*stend = dataloc+(clk*4);
+			*stend = dataloc;
+			*ststart = dataloc-(clk*4);
 			firstrun=false;
 		}
 		for (i=0; i<datalen; ++i) {