X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/6a4271d186e0ad7d6d3f71c617c108e9d23188d4..d0724780ab600fd4c8e4b3a7dc43a9a01a3e8fb8:/client/cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index d0c2dfb3..18edd33e 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -76,7 +76,7 @@ void printDemodBuff(void)
 	}
 	if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
 
-	char *bin = sprint_bin_break(DemodBuffer,bitLen,16);
+	char *bin = sprint_bin_break(DemodBuffer, bitLen,16);
 	PrintAndLog("%s",bin);
 
 	return;
@@ -527,7 +527,11 @@ int ASKbiphaseDemod(const char *Cmd, bool verbose)
 	sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
 	
 	uint8_t BitStream[MAX_DEMOD_BUF_LEN];
-	size_t size = getFromGraphBuf(BitStream);	  
+	size_t size = getFromGraphBuf(BitStream);	
+	if (size == 0 ) {
+		if (g_debugMode) PrintAndLog("DEBUG: no data in graphbuf");  
+			return 0;  
+	}
 	//invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
 	int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);  
 	if ( errCnt < 0 || errCnt > maxErr ) {   
@@ -877,13 +881,16 @@ int CmdGraphShiftZero(const char *Cmd)
 int CmdAskEdgeDetect(const char *Cmd)
 {
 	int thresLen = 25;
+	int last = 0;
 	sscanf(Cmd, "%i", &thresLen); 
 
-	for(int i = 1; i<GraphTraceLen; i++){
-		if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
-			GraphBuffer[i-1] = 127;
-		else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
-			GraphBuffer[i-1] = -127;
+	for(int i = 1; i < GraphTraceLen; ++i){
+		if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
+			last = 127;
+		else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
+			last = -127;
+			
+		GraphBuffer[i-1] = last;
 	}
 	RepaintGraphWindow();
 	return 0;