From: marshmellow42 <marshmellowrf@gmail.com>
Date: Mon, 26 Jan 2015 22:49:30 +0000 (-0500)
Subject: clean up some comments
X-Git-Tag: v2.0.0-rc1~43^2
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/commitdiff_plain/refs/pull/48/head?ds=sidebyside;hp=04d2721b3c7c4113e627d3f953835bde932065db

clean up some comments
---

diff --git a/client/cmddata.c b/client/cmddata.c
index 0c6cd72c..9ed228a4 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -1190,12 +1190,17 @@ int CmdFSKfcDetect(const char *Cmd)
   return 1;
 }
 
+//by marshmellow
+//attempt to detect the bit clock for PSK or NRZ modulations
 int CmdDetectNRZpskClockRate(const char *Cmd)
 {
 	GetNRZpskClock("",0,0);
 	return 0;
 }
 
+//by marshmellow
+//attempt to psk1 or nrz demod graph buffer
+//NOTE CURRENTLY RELIES ON PEAKS :(
 int PSKnrzDemod(const char *Cmd, uint8_t verbose)
 {
 	int invert=0;
@@ -1296,6 +1301,9 @@ int CmdIndalaDecode(const char *Cmd)
 	return 1;
 }
 
+//by marshmellow
+//attempt to clean psk wave noise after a peak 
+//NOTE RELIES ON PEAKS :(
 int CmdPskClean(const char *Cmd)
 {
 	uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0};
diff --git a/common/lfdemod.c b/common/lfdemod.c
index 810e0357..1b499158 100644
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -336,30 +336,20 @@ int askrawdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert)
 			for (i = iii; i < *size; ++i) {
 				if ((BinStream[i] >= high) && ((i-lastBit)>(*clk-tol))){
 					lastBit+=*clk;
-					//BitStream[bitnum] = *invert;
-					//bitnum++;
 					midBit=0;
 				} else if ((BinStream[i] <= low) && ((i-lastBit)>(*clk-tol))){
 					//low found and we are expecting a bar
 					lastBit+=*clk;
-					//BitStream[bitnum] = 1- *invert;
-					//bitnum++;
 					midBit=0;
 				} else if ((BinStream[i]<=low) && (midBit==0) && ((i-lastBit)>((*clk/2)-tol))){
 					//mid bar?
 					midBit=1;
-					//BitStream[bitnum]= 1- *invert;
-					//bitnum++;
 				} else if ((BinStream[i]>=high) && (midBit==0) && ((i-lastBit)>((*clk/2)-tol))){
 					//mid bar?
 					midBit=1;
-					//BitStream[bitnum]= *invert;
-					//bitnum++;
 				} else if ((i-lastBit)>((*clk/2)+tol) && (midBit==0)){
 					//no mid bar found
 					midBit=1;
-					//BitStream[bitnum]= BitStream[bitnum-1];
-					//bitnum++;
 				} else {
 					//mid value found or no bar supposed to be here
 
@@ -367,16 +357,11 @@ int askrawdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert)
 						//should have hit a high or low based on clock!!
 						//debug
 						//PrintAndLog("DEBUG - no wave in expected area - location: %d, expected: %d-%d, lastBit: %d - resetting search",i,(lastBit+(clk-((int)(tol)))),(lastBit+(clk+((int)(tol)))),lastBit);
-						//if (bitnum > 0){
-						//	BitStream[bitnum]=77;
-						//	bitnum++;
-						//}
 
 						errCnt++;
 						lastBit+=*clk;//skip over until hit too many errors
 						if (errCnt > ((*size/1000))){  //allow 1 error for every 1000 samples else start over
 							errCnt=0;
-							//	bitnum=0;//start over
 							break;
 						}
 					}