adjust ask/biphase handling - more complete

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index 7b666c263550094f9e5f42d02dd8fc71dbd9f3fa..a3d58523ff2d610540eedb31d6aa497b4d458e96 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -22,6 +22,7 @@
 #include "cmddata.h"
 #include "lfdemod.h"
 #include "usb_cmd.h"
 #include "cmddata.h"
 #include "lfdemod.h"
 #include "usb_cmd.h"

+#include "crc.h"

 
 uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
 uint8_t g_debugMode;
 
 uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
 uint8_t g_debugMode;


@@ -49,7 +50,7 @@ int CmdSetDebugMode(const char *Cmd)
 }
 
 //by marshmellow
 }
 
 //by marshmellow

-void printDemodBuff()
+void printDemodBuff(void)

 {
        uint32_t i = 0;
        int bitLen = DemodBufferLen;
 {
        uint32_t i = 0;
        int bitLen = DemodBufferLen;


@@ -84,7 +85,28 @@ void printDemodBuff()
        return;
 }
 
        return;
 }
 

-
+int CmdPrintDemodBuff(const char *Cmd)
+{
+  char hex;
+  char printBuff[512]={0x00};
+  uint8_t numBits = DemodBufferLen & 0xFFF0;
+  sscanf(Cmd, "%c", &hex);
+  if (hex == 'h'){
+    PrintAndLog("Usage: data printdemodbuffer [x]");
+    PrintAndLog("Options:        ");
+    PrintAndLog("       h       This help");
+    PrintAndLog("       x       output in hex (omit for binary output)");
+    return 0;
+  }
+  if (hex == 'x'){
+    numBits = binarraytohex(printBuff, (char *)DemodBuffer, numBits);
+    if (numBits==0) return 0;
+    PrintAndLog("DemodBuffer: %s",printBuff);
+  } else {
+    printDemodBuff();
+  }
+  return 1;
+}

 int CmdAmp(const char *Cmd)
 {
   int i, rising, falling;
 int CmdAmp(const char *Cmd)
 {
   int i, rising, falling;


@@ -129,20 +151,19 @@ int CmdAmp(const char *Cmd)
  * Updates the Graph trace with 0/1 values
  *
  * Arguments:
  * Updates the Graph trace with 0/1 values
  *
  * Arguments:

- * c : 0 or 1
+ * c : 0 or 1  (or invert)

  */
  */

- //this method is dependant on all highs and lows to be the same(or clipped)  this creates issues[marshmellow] it also ignores the clock
+ //this method ignores the clock
+
+ //this function strictly converts highs and lows to 1s and 0s for each sample in the graphbuffer

 int Cmdaskdemod(const char *Cmd)
 {
   int i;
   int c, high = 0, low = 0;
 
 int Cmdaskdemod(const char *Cmd)
 {
   int i;
   int c, high = 0, low = 0;
 

-  // TODO: complain if we do not give 2 arguments here !
-  // (AL - this doesn't make sense! we're only using one argument!!!)

   sscanf(Cmd, "%i", &c);
 
   sscanf(Cmd, "%i", &c);
 

-  /* Detect high and lows and clock */
-       // (AL - clock???)
+  /* Detect high and lows */

   for (i = 0; i < GraphTraceLen; ++i)
   {
     if (GraphBuffer[i] > high)
   for (i = 0; i < GraphTraceLen; ++i)
   {
     if (GraphBuffer[i] > high)


@@ -172,9 +193,9 @@ int Cmdaskdemod(const char *Cmd)
      * down)
      */
     //[marhsmellow] change == to >= for high and <= for low for fuzz
      * down)
      */
     //[marhsmellow] change == to >= for high and <= for low for fuzz

-    if ((GraphBuffer[i] == high) && (GraphBuffer[i - 1] == c)) {
+    if ((GraphBuffer[i] >= high) && (GraphBuffer[i - 1] == c)) {

       GraphBuffer[i] = 1 - c;
       GraphBuffer[i] = 1 - c;

-    } else if ((GraphBuffer[i] == low) && (GraphBuffer[i - 1] == (1 - c))){
+    } else if ((GraphBuffer[i] <= low) && (GraphBuffer[i - 1] == (1 - c))){

       GraphBuffer[i] = c;
     } else {
       /* No transition */
       GraphBuffer[i] = c;
     } else {
       /* No transition */


@@ -185,6 +206,23 @@ int Cmdaskdemod(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

+//this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
+int CmdGetBitStream(const char *Cmd)
+{
+  int i;
+  CmdHpf(Cmd);
+  for (i = 0; i < GraphTraceLen; i++) {
+    if (GraphBuffer[i] >= 1) {
+      GraphBuffer[i] = 1;
+    } else {
+      GraphBuffer[i] = 0;
+    }
+  }
+  RepaintGraphWindow();
+  return 0;
+}
+
+

 //by marshmellow
 void printBitStream(uint8_t BitStream[], uint32_t bitLen)
 {
 //by marshmellow
 void printBitStream(uint8_t BitStream[], uint32_t bitLen)
 {


@@ -221,10 +259,10 @@ void printBitStream(uint8_t BitStream[], uint32_t bitLen)
        return;
 }
 //by marshmellow
        return;
 }
 //by marshmellow

-//print EM410x ID in multiple formats
-void printEM410x(uint64_t id)
+//print 64 bit EM410x ID in multiple formats
+void printEM410x(uint32_t hi, uint64_t id)

 {
 {

-  if (id !=0){
+  if (id || hi){

     uint64_t iii=1;
     uint64_t id2lo=0;
     uint32_t ii=0;
     uint64_t iii=1;
     uint64_t id2lo=0;
     uint32_t ii=0;


@@ -234,16 +272,21 @@ void printEM410x(uint64_t id)
         id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
       }
     }
         id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
       }
     }

-    //output em id
-    PrintAndLog("EM TAG ID    : %010llx", id);
-    PrintAndLog("Unique TAG ID: %010llx",  id2lo);
-    PrintAndLog("DEZ 8        : %08lld",id & 0xFFFFFF);
-    PrintAndLog("DEZ 10       : %010lld",id & 0xFFFFFF);
-    PrintAndLog("DEZ 5.5      : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
-    PrintAndLog("DEZ 3.5A     : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
-    PrintAndLog("DEZ 14/IK2   : %014lld",id);
-    PrintAndLog("DEZ 15/IK3   : %015lld",id2lo);
-    PrintAndLog("Other        : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
+    if (hi){
+      //output 88 bit em id
+      PrintAndLog("EM TAG ID    : %06x%016llx", hi, id);
+    } else{
+      //output 40 bit em id
+      PrintAndLog("EM TAG ID    : %010llx", id);
+      PrintAndLog("Unique TAG ID: %010llx",  id2lo);
+      PrintAndLog("DEZ 8        : %08lld",id & 0xFFFFFF);
+      PrintAndLog("DEZ 10       : %010lld",id & 0xFFFFFF);
+      PrintAndLog("DEZ 5.5      : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
+      PrintAndLog("DEZ 3.5A     : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
+      PrintAndLog("DEZ 14/IK2   : %014lld",id);
+      PrintAndLog("DEZ 15/IK3   : %015lld",id2lo);
+      PrintAndLog("Other        : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));  
+    }

   }
   return;
 }
   }
   return;
 }


@@ -254,9 +297,6 @@ void printEM410x(uint64_t id)
 //prints binary found and saves in graphbuffer for further commands
 int CmdAskEM410xDemod(const char *Cmd)
 {
 //prints binary found and saves in graphbuffer for further commands
 int CmdAskEM410xDemod(const char *Cmd)
 {

-  int invert=0;
-  int clk=0;
-  int maxErr=100;

   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data askem410xdemod [clock] <0|1> [maxError]");
   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data askem410xdemod [clock] <0|1> [maxError]");


@@ -269,19 +309,43 @@ int CmdAskEM410xDemod(const char *Cmd)
     PrintAndLog("          : data askem410xdemod 32 1   = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
     PrintAndLog("          : data askem410xdemod 1      = demod an EM410x Tag ID from GraphBuffer while inverting data");
     PrintAndLog("          : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");
     PrintAndLog("          : data askem410xdemod 32 1   = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
     PrintAndLog("          : data askem410xdemod 1      = demod an EM410x Tag ID from GraphBuffer while inverting data");
     PrintAndLog("          : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");

-

     return 0;
   }
     return 0;
   }

+  int ans = ASKmanDemod(Cmd, FALSE, FALSE);
+  if (!ans) return 0;

 
 

+  uint64_t lo =0;
+  uint32_t hi =0;
+  size_t idx=0;
+  if (Em410xDecode(DemodBuffer,(size_t *) &DemodBufferLen, &idx, &hi, &lo)){
+    if (g_debugMode){
+      PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, DemodBufferLen);
+      printDemodBuff();
+    }
+    PrintAndLog("EM410x pattern found: ");
+    printEM410x(hi, lo);
+    return 1;
+  }
+  return 0;
+}

 
 

+int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch)
+{
+  int invert=0;
+  int clk=0;
+  int maxErr=100;
+  

   uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
   sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
   if (invert != 0 && invert != 1) {
     PrintAndLog("Invalid argument: %s", Cmd);
     return 0;
   }
   uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
   sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
   if (invert != 0 && invert != 1) {
     PrintAndLog("Invalid argument: %s", Cmd);
     return 0;
   }

+  if (clk==1){
+    invert=1;
+    clk=0;
+  }

   size_t BitLen = getFromGraphBuf(BitStream);
   size_t BitLen = getFromGraphBuf(BitStream);

-

   if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
   if (BitLen==0) return 0;
   int errCnt=0;
   if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
   if (BitLen==0) return 0;
   int errCnt=0;


@@ -290,31 +354,33 @@ int CmdAskEM410xDemod(const char *Cmd)
     if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
     return 0;
   }
     if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
     return 0;
   }

-  PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
+  if (verbose || g_debugMode) PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);

 
   //output
   if (errCnt>0){
 
   //output
   if (errCnt>0){

-    PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+    if (verbose || g_debugMode) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);

   }
   }

-  //PrintAndLog("ASK/Manchester decoded bitstream:");
+  if (verbose || g_debugMode) PrintAndLog("ASK/Manchester decoded bitstream:");

   // Now output the bitstream to the scrollback by line of 16 bits
   setDemodBuf(BitStream,BitLen,0);
   // Now output the bitstream to the scrollback by line of 16 bits
   setDemodBuf(BitStream,BitLen,0);

-  //printDemodBuff();
+  if (verbose || g_debugMode) printDemodBuff();

   uint64_t lo =0;
   uint64_t lo =0;

+  uint32_t hi =0;

   size_t idx=0;
   size_t idx=0;

-  lo = Em410xDecode(BitStream, &BitLen, &idx);
-  if (lo>0){
-    //set GraphBuffer for clone or sim command
-    setDemodBuf(BitStream, BitLen, idx);
-    if (g_debugMode){
-      PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
-      printDemodBuff();
+  if (emSearch){
+    if (Em410xDecode(BitStream, &BitLen, &idx, &hi, &lo)){
+      //set GraphBuffer for clone or sim command
+      setDemodBuf(BitStream, BitLen, idx);
+      if (g_debugMode){
+        PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
+        printDemodBuff();
+      }
+      if (verbose) PrintAndLog("EM410x pattern found: ");
+      if (verbose) printEM410x(hi, lo);
+      return 1;

     }
     }

-    PrintAndLog("EM410x pattern found: ");
-    printEM410x(lo);
-    return 1;

   }
   }

-  return 0;
+  return 1;

 }
 
 //by marshmellow
 }
 
 //by marshmellow


@@ -323,9 +389,6 @@ int CmdAskEM410xDemod(const char *Cmd)
 //prints binary found and saves in graphbuffer for further commands
 int Cmdaskmandemod(const char *Cmd)
 {
 //prints binary found and saves in graphbuffer for further commands
 int Cmdaskmandemod(const char *Cmd)
 {

-  int invert=0;
-  int clk=0;
-  int maxErr=100;

   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data rawdemod am [clock] <0|1> [maxError]");
   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data rawdemod am [clock] <0|1> [maxError]");


@@ -338,53 +401,9 @@ int Cmdaskmandemod(const char *Cmd)
     PrintAndLog("          : data rawdemod am 32 1   = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
     PrintAndLog("          : data rawdemod am 1      = demod an ask/manchester tag from GraphBuffer while inverting data");
     PrintAndLog("          : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
     PrintAndLog("          : data rawdemod am 32 1   = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
     PrintAndLog("          : data rawdemod am 1      = demod an ask/manchester tag from GraphBuffer while inverting data");
     PrintAndLog("          : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");

-

     return 0;
   }
     return 0;
   }

-  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
-  sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
-  if (invert != 0 && invert != 1) {
-    PrintAndLog("Invalid argument: %s", Cmd);
-    return 0;
-  }
-  if (clk==1){
-    invert=1;
-    clk=0;
-  }
-  size_t BitLen = getFromGraphBuf(BitStream);
-  if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
-  if (BitLen==0) return 0;
-  int errCnt=0;
-  errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr);
-  if (errCnt<0||BitLen<16){  //if fatal error (or -1)
-    if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
-    return 0;
-  }
-  PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
-
-  //output
-  if (errCnt>0){
-    PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
-  }
-  PrintAndLog("ASK/Manchester decoded bitstream:");
-  // Now output the bitstream to the scrollback by line of 16 bits
-  setDemodBuf(BitStream,BitLen,0);
-  printDemodBuff();
-  uint64_t lo =0;
-  size_t idx=0;
-  lo = Em410xDecode(BitStream, &BitLen, &idx);
-  if (lo>0){
-    //set GraphBuffer for clone or sim command
-    setDemodBuf(BitStream, BitLen, idx);
-    if (g_debugMode){
-      PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
-      printDemodBuff();
-    }
-    PrintAndLog("EM410x pattern found: ");
-    printEM410x(lo);
-    return 1;
-  }
-  return 1;
+  return ASKmanDemod(Cmd, TRUE, TRUE);

 }
 
 //by marshmellow
 }
 
 //by marshmellow


@@ -427,13 +446,13 @@ int Cmdmandecoderaw(const char *Cmd)
   printBitStream(BitStream, size);
   if (errCnt==0){
     uint64_t id = 0;
   printBitStream(BitStream, size);
   if (errCnt==0){
     uint64_t id = 0;

+    uint32_t hi = 0;

     size_t idx=0;
     size_t idx=0;

-    id = Em410xDecode(BitStream, &size, &idx);
-    if (id>0){
+    if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){

       //need to adjust to set bitstream back to manchester encoded data
       //setDemodBuf(BitStream, size, idx);
 
       //need to adjust to set bitstream back to manchester encoded data
       //setDemodBuf(BitStream, size, idx);
 

-      printEM410x(id);
+      printEM410x(hi, id);

     }
   }
   return 1;
     }
   }
   return 1;


@@ -451,82 +470,89 @@ int Cmdmandecoderaw(const char *Cmd)
 //    width waves vs small width waves to help the decode positioning) or askbiphdemod
 int CmdBiphaseDecodeRaw(const char *Cmd)
 {
 //    width waves vs small width waves to help the decode positioning) or askbiphdemod
 int CmdBiphaseDecodeRaw(const char *Cmd)
 {

-       int i = 0;
-       int errCnt=0;

        size_t size=0;
        size_t size=0;

-       int offset=0;
-       int invert=0;
-       int high=0, low=0;
+       int offset=0, invert=0, maxErr=20, errCnt=0;

        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {

-               PrintAndLog("Usage:  data biphaserawdecode [offset] <invert>");
-               PrintAndLog("     Converts 10 or 01 to 0 and 11 or 00 to 1");
+               PrintAndLog("Usage:  data biphaserawdecode [offset] [invert] [maxErr]");
+               PrintAndLog("     Converts 10 or 01 to 1 and 11 or 00 to 0");

                PrintAndLog("     --must have binary sequence in demodbuffer (run data askrawdemod first)");
                PrintAndLog("");
                PrintAndLog("     [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
                PrintAndLog("     [invert <0|1>], set to 1 to invert output");
                PrintAndLog("     --must have binary sequence in demodbuffer (run data askrawdemod first)");
                PrintAndLog("");
                PrintAndLog("     [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
                PrintAndLog("     [invert <0|1>], set to 1 to invert output");

+               PrintAndLog("     [maxErr int],   set max errors tolerated - default=20");

                PrintAndLog("");
                PrintAndLog("    sample: data biphaserawdecode     = decode biphase bitstream from the demodbuffer");
                PrintAndLog("    sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
                return 0;
        }
                PrintAndLog("");
                PrintAndLog("    sample: data biphaserawdecode     = decode biphase bitstream from the demodbuffer");
                PrintAndLog("    sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
                return 0;
        }

-       sscanf(Cmd, "%i %i", &offset, &invert);
-       if (DemodBufferLen==0) return 0;
-       uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
-       //get graphbuffer & high and low
-       for (;i<DemodBufferLen;++i){
-               if(DemodBuffer[i]>high)high=DemodBuffer[i];
-               else if(DemodBuffer[i]<low)low=DemodBuffer[i];
-               BitStream[i]=DemodBuffer[i];
-       }
-       if (high>1 || low <0){
-               PrintAndLog("Error: please raw demod the wave first then decode");
+       sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
+       if (DemodBufferLen==0){
+               PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");

                return 0;
        }
                return 0;
        }

-       size=i;
+       uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+       memcpy(BitStream, DemodBuffer, DemodBufferLen); 
+       size = DemodBufferLen;

        errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
        errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);

-       if (errCnt>=20){
+       if (errCnt<0){
+               PrintAndLog("Error during decode:%d", errCnt);
+               return 0;
+       }
+       if (errCnt>maxErr){

                PrintAndLog("Too many errors attempting to decode: %d",errCnt);
                return 0;
        }
                PrintAndLog("Too many errors attempting to decode: %d",errCnt);
                return 0;
        }

-       PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
+
+       if (errCnt>0){
+               PrintAndLog("# Errors found during Demod (shown as 77 in bit stream): %d",errCnt);
+       }
+       PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);

        printBitStream(BitStream, size);
        printBitStream(BitStream, size);

-       PrintAndLog("\nif bitstream does not look right try offset=1");
+       
+       if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset);  //remove first bit from raw demod

        return 1;
 }
 
        return 1;
 }
 

+// set demod buffer back to raw after biphase demod
+void setBiphasetoRawDemodBuf(uint8_t *BitStream, size_t size)
+{
+  uint8_t rawStream[512]={0x00};
+  size_t i=0;
+  uint8_t curPhase=0;
+  if (size > 256) {
+    PrintAndLog("ERROR - Biphase Demod Buffer overrun");
+    return;
+  }
+  for (size_t idx=0; idx<size; idx++){
+    if(!BitStream[idx]){
+      rawStream[i++] = curPhase;
+      rawStream[i++] = curPhase;
+      curPhase ^= 1; 
+    } else {
+      rawStream[i++] = curPhase;
+      rawStream[i++] = curPhase ^ 1;
+    }
+  }
+  setDemodBuf(rawStream,i,0);
+  return;
+}
+

 //by marshmellow
 //takes 4 arguments - clock, invert, maxErr as integers and amplify as char
 //attempts to demodulate ask only
 //prints binary found and saves in graphbuffer for further commands
 //by marshmellow
 //takes 4 arguments - clock, invert, maxErr as integers and amplify as char
 //attempts to demodulate ask only
 //prints binary found and saves in graphbuffer for further commands

-int Cmdaskrawdemod(const char *Cmd)
+int ASKrawDemod(const char *Cmd, bool verbose)

 {
   int invert=0;
   int clk=0;
   int maxErr=100;
   uint8_t askAmp = 0;
   char amp = param_getchar(Cmd, 0);
 {
   int invert=0;
   int clk=0;
   int maxErr=100;
   uint8_t askAmp = 0;
   char amp = param_getchar(Cmd, 0);

-  char cmdp = param_getchar(Cmd, 0);
-  if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
-    PrintAndLog("Usage:  data rawdemod ar [clock] <invert> [maxError] [amplify]");
-    PrintAndLog("     [set clock as integer] optional, if not set, autodetect");
-    PrintAndLog("     <invert>, 1 to invert output");
-    PrintAndLog("     [set maximum allowed errors], default = 100");
-    PrintAndLog("     <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
-    PrintAndLog("");
-    PrintAndLog("    sample: data rawdemod ar          = demod an ask tag from GraphBuffer");
-    PrintAndLog("          : data rawdemod ar a        = demod an ask tag from GraphBuffer, amplified");
-    PrintAndLog("          : data rawdemod ar 32       = demod an ask tag from GraphBuffer using a clock of RF/32");
-    PrintAndLog("          : data rawdemod ar 32 1     = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
-    PrintAndLog("          : data rawdemod ar 1        = demod an ask tag from GraphBuffer while inverting data");
-    PrintAndLog("          : data rawdemod ar 64 1 0   = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
-    PrintAndLog("          : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
-    return 0;
-  }

   uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
   sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &amp);
   if (invert != 0 && invert != 1) {
   uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
   sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &amp);
   if (invert != 0 && invert != 1) {

-    PrintAndLog("Invalid argument: %s", Cmd);
+    if (verbose || g_debugMode) PrintAndLog("Invalid argument: %s", Cmd);

     return 0;
   }
   if (clk==1){
     return 0;
   }
   if (clk==1){


@@ -539,58 +565,267 @@ int Cmdaskrawdemod(const char *Cmd)
   int errCnt=0;
   errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp);
   if (errCnt==-1||BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)
   int errCnt=0;
   errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp);
   if (errCnt==-1||BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)

-    PrintAndLog("no data found");
-    if (g_debugMode==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);
+    if (verbose || g_debugMode) PrintAndLog("no data found");
+    if (g_debugMode) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);

     return 0;
   }
     return 0;
   }

-  PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);
+  if (verbose || g_debugMode) PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);

   
   //move BitStream back to DemodBuffer
   setDemodBuf(BitStream,BitLen,0);
 
   //output
   
   //move BitStream back to DemodBuffer
   setDemodBuf(BitStream,BitLen,0);
 
   //output

-  if (errCnt>0){
+  if (errCnt>0 && (verbose || g_debugMode)){

     PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt);
   }
     PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt);
   }

-  PrintAndLog("ASK demoded bitstream:");
-  // Now output the bitstream to the scrollback by line of 16 bits
-  printBitStream(BitStream,BitLen);
-
+  if (verbose || g_debugMode){
+    PrintAndLog("ASK demoded bitstream:");
+    // Now output the bitstream to the scrollback by line of 16 bits
+    printBitStream(BitStream,BitLen);
+  } 

   return 1;
 }
 
   return 1;
 }
 

-int CmdAutoCorr(const char *Cmd)
+//by marshmellow
+// - ASK Demod then Biphase decode GraphBuffer samples
+int ASKbiphaseDemod(const char *Cmd, bool verbose)

 {
 {

-  static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
+       //ask raw demod GraphBuffer first
+       int offset=0, clk=0, invert=0, maxErr=0, ans=0;
+       ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
+       if (ans>0)
+               ans = ASKrawDemod(Cmd+2, FALSE);
+       else
+               ans = ASKrawDemod(Cmd, FALSE);
+       if (!ans) {
+               if (g_debugMode || verbose) PrintAndLog("Error AskrawDemod: %d", ans);
+               return 0;
+       }

 
 

-  int window = atoi(Cmd);
+       //attempt to Biphase decode DemodBuffer
+       size_t size = DemodBufferLen;
+       uint8_t BitStream[MAX_DEMOD_BUF_LEN];
+       memcpy(BitStream, DemodBuffer, DemodBufferLen); 

 
 

-  if (window == 0) {
-    PrintAndLog("needs a window");
+       int errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
+       if (errCnt < 0){
+               if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
+               return 0;
+       } 
+       if (errCnt > maxErr) {
+               if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt);
+               return 0;
+       }
+       //success set DemodBuffer and return
+       setDemodBuf(BitStream, size, 0);
+       if (g_debugMode || verbose){
+               PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
+               printDemodBuff();
+       }
+       return 1;
+}
+//by marshmellow - see ASKbiphaseDemod
+int Cmdaskbiphdemod(const char *Cmd)
+{
+  char cmdp = param_getchar(Cmd, 0);
+  if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
+    PrintAndLog("Usage:  data rawdemod ab [offset] [clock] <invert> [maxError] <amplify>");
+    PrintAndLog("     [offset], offset to begin biphase, default=0");
+    PrintAndLog("     [set clock as integer] optional, if not set, autodetect");
+    PrintAndLog("     <invert>, 1 to invert output");
+    PrintAndLog("     [set maximum allowed errors], default = 100");
+    PrintAndLog("     <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
+    PrintAndLog("     NOTE: <invert>  can be entered as second or third argument");
+    PrintAndLog("     NOTE: <amplify> can be entered as first, second or last argument");
+    PrintAndLog("     NOTE: any other arg must have previous args set to work");
+    PrintAndLog("");
+    PrintAndLog("    sample: data rawdemod ab            = demod an ask/biph tag from GraphBuffer");
+    PrintAndLog("          : data rawdemod ab a          = demod an ask/biph tag from GraphBuffer, amplified");
+    PrintAndLog("          : data rawdemod ab 1 32       = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
+    PrintAndLog("          : data rawdemod ab 0 32 1     = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
+    PrintAndLog("          : data rawdemod ab 0 1        = demod an ask/biph tag from GraphBuffer while inverting data");
+    PrintAndLog("          : data rawdemod ab 0 64 1 0   = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+    PrintAndLog("          : data rawdemod ab 0 64 1 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");

     return 0;
   }
     return 0;
   }

-  if (window >= GraphTraceLen) {
-    PrintAndLog("window must be smaller than trace (%d samples)",
-      GraphTraceLen);
+  return ASKbiphaseDemod(Cmd, TRUE);
+}
+
+//by marshmellow
+//attempts to demodulate and identify a G_Prox_II verex/chubb card
+//WARNING: if it fails during some points it will destroy the DemodBuffer data
+// but will leave the GraphBuffer intact.
+//if successful it will push askraw data back to demod buffer ready for emulation
+int CmdG_Prox_II_Demod(const char *Cmd)
+{
+  if (!ASKbiphaseDemod(Cmd, FALSE)){
+    if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try");
+    return 0;
+  }
+  size_t size = DemodBufferLen;
+  //call lfdemod.c demod for gProxII
+  int ans = gProxII_Demod(DemodBuffer, &size);
+  if (ans < 0){
+    if (g_debugMode) PrintAndLog("Error gProxII_Demod");

     return 0;
   }
     return 0;
   }

+  //got a good demod
+  uint32_t ByteStream[65] = {0x00};
+  uint8_t xorKey=0;
+  uint8_t keyCnt=0;
+  uint8_t bitCnt=0;
+  uint8_t ByteCnt=0;
+  size_t startIdx = ans + 6; //start after preamble
+  for (size_t idx = 0; idx<size-6; idx++){
+    if ((idx+1) % 5 == 0){
+      //spacer bit - should be 0
+      if (DemodBuffer[startIdx+idx] != 0) {
+        if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);
+        return 0;
+      }
+      continue;
+    } 
+    if (keyCnt<8){ //lsb first
+      xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);
+      keyCnt++;
+      if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey);
+      continue;
+    }
+    //lsb first
+    ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
+    bitCnt++;
+    if (bitCnt % 8 == 0){
+      if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);
+      bitCnt=0;
+      ByteCnt++;
+    }
+  }
+  for (uint8_t i = 0; i < ByteCnt; i++){
+    ByteStream[i] ^= xorKey; //xor
+    if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);
+  }
+  //now ByteStream contains 64 bytes of decrypted raw tag data
+  // 
+  uint8_t fmtLen = ByteStream[0]>>2;
+  uint32_t FC = 0;
+  uint32_t Card = 0;
+  uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
+  uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
+  uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
+
+  if (fmtLen==36){
+    FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
+    Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
+    PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
+  } else if(fmtLen==26){
+    FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
+    Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
+    PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);    
+  } else {
+    PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
+  }
+  PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
+  setDemodBuf(DemodBuffer+ans, 96, 0);
+  return 1;
+}

 
 

-  PrintAndLog("performing %d correlations", GraphTraceLen - window);
+//by marshmellow - see ASKrawDemod
+int Cmdaskrawdemod(const char *Cmd)
+{
+  char cmdp = param_getchar(Cmd, 0);
+  if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
+    PrintAndLog("Usage:  data rawdemod ar [clock] <invert> [maxError] [amplify]");
+    PrintAndLog("     [set clock as integer] optional, if not set, autodetect");
+    PrintAndLog("     <invert>, 1 to invert output");
+    PrintAndLog("     [set maximum allowed errors], default = 100");
+    PrintAndLog("     <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
+    PrintAndLog("");
+    PrintAndLog("    sample: data rawdemod ar          = demod an ask tag from GraphBuffer");
+    PrintAndLog("          : data rawdemod ar a        = demod an ask tag from GraphBuffer, amplified");
+    PrintAndLog("          : data rawdemod ar 32       = demod an ask tag from GraphBuffer using a clock of RF/32");
+    PrintAndLog("          : data rawdemod ar 32 1     = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
+    PrintAndLog("          : data rawdemod ar 1        = demod an ask tag from GraphBuffer while inverting data");
+    PrintAndLog("          : data rawdemod ar 64 1 0   = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+    PrintAndLog("          : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
+    return 0;
+  }
+  return ASKrawDemod(Cmd, TRUE);
+}

 
 

+int AutoCorrelate(int window, bool SaveGrph, bool verbose)
+{
+  static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
+  size_t Correlation = 0;
+  int maxSum = 0;
+  int lastMax = 0;
+  if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);

   for (int i = 0; i < GraphTraceLen - window; ++i) {
     int sum = 0;
     for (int j = 0; j < window; ++j) {
       sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
     }
     CorrelBuffer[i] = sum;
   for (int i = 0; i < GraphTraceLen - window; ++i) {
     int sum = 0;
     for (int j = 0; j < window; ++j) {
       sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
     }
     CorrelBuffer[i] = sum;

+    if (sum >= maxSum-100 && sum <= maxSum+100){
+      //another max
+      Correlation = i-lastMax;
+      lastMax = i;
+      if (sum > maxSum) maxSum = sum;
+    } else if (sum > maxSum){
+      maxSum=sum;
+      lastMax = i;
+    }

   }
   }

-  GraphTraceLen = GraphTraceLen - window;
-  memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
+  if (Correlation==0){
+    //try again with wider margin
+    for (int i = 0; i < GraphTraceLen - window; i++){
+      if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
+        //another max
+        Correlation = i-lastMax;
+        lastMax = i;
+        //if (CorrelBuffer[i] > maxSum) maxSum = sum;
+      }
+    }
+  }
+  if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);

 
 

-  RepaintGraphWindow();
+  if (SaveGrph){
+    GraphTraceLen = GraphTraceLen - window;
+    memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
+    RepaintGraphWindow();  
+  }
+  return Correlation;
+}
+
+int usage_data_autocorr(void)
+{
+  //print help
+  PrintAndLog("Usage: data autocorr [window] [g]");
+  PrintAndLog("Options:        ");
+  PrintAndLog("       h              This help");
+  PrintAndLog("       [window]       window length for correlation - default = 4000");
+  PrintAndLog("       g              save back to GraphBuffer (overwrite)");

   return 0;
 }
 
   return 0;
 }
 

+int CmdAutoCorr(const char *Cmd)
+{
+  char cmdp = param_getchar(Cmd, 0);
+  if (cmdp == 'h' || cmdp == 'H') 
+    return usage_data_autocorr();
+  int window = 4000; //set default
+  char grph=0;
+  bool updateGrph = FALSE;
+  sscanf(Cmd, "%i %c", &window, &grph);
+
+  if (window >= GraphTraceLen) {
+    PrintAndLog("window must be smaller than trace (%d samples)",
+      GraphTraceLen);
+    return 0;
+  }
+  if (grph == 'g') updateGrph=TRUE;
+  return AutoCorrelate(window, updateGrph, TRUE);
+}
+

 int CmdBitsamples(const char *Cmd)
 {
   int cnt = 0;
 int CmdBitsamples(const char *Cmd)
 {
   int cnt = 0;


@@ -814,31 +1049,15 @@ int CmdDetectClockRate(const char *Cmd)
 //fsk raw demod and print binary
 //takes 4 arguments - Clock, invert, fchigh, fclow
 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
 //fsk raw demod and print binary
 //takes 4 arguments - Clock, invert, fchigh, fclow
 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))

-int CmdFSKrawdemod(const char *Cmd)
+int FSKrawDemod(const char *Cmd, bool verbose)

 {
   //raw fsk demod  no manchester decoding no start bit finding just get binary from wave
   //set defaults
   int rfLen = 0;
 {
   //raw fsk demod  no manchester decoding no start bit finding just get binary from wave
   //set defaults
   int rfLen = 0;

-  int invert=0;
-  int fchigh=0;
-  int fclow=0;
-  char cmdp = param_getchar(Cmd, 0);
-  if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
-    PrintAndLog("Usage:  data rawdemod fs [clock] <invert> [fchigh] [fclow]");
-    PrintAndLog("     [set clock as integer] optional, omit for autodetect.");
-    PrintAndLog("     <invert>, 1 for invert output, can be used even if the clock is omitted");
-    PrintAndLog("     [fchigh], larger field clock length, omit for autodetect");
-    PrintAndLog("     [fclow], small field clock length, omit for autodetect");
-    PrintAndLog("");
-    PrintAndLog("    sample: data rawdemod fs           = demod an fsk tag from GraphBuffer using autodetect");
-    PrintAndLog("          : data rawdemod fs 32        = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
-    PrintAndLog("          : data rawdemod fs 1         = demod an fsk tag from GraphBuffer using autodetect, invert output");   
-    PrintAndLog("          : data rawdemod fs 32 1      = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
-    PrintAndLog("          : data rawdemod fs 64 0 8 5  = demod an fsk1 RF/64 tag from GraphBuffer");
-    PrintAndLog("          : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
-    PrintAndLog("          : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
-    return 0;
-  }
+  int invert = 0;
+  int fchigh = 0;
+  int fclow = 0;
+

   //set options from parameters entered with the command
   sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow);
 
   //set options from parameters entered with the command
   sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow);
 


@@ -856,7 +1075,7 @@ int CmdFSKrawdemod(const char *Cmd)
   uint16_t fcs=0;
   uint8_t dummy=0;
   if (fchigh==0 || fclow == 0){
   uint16_t fcs=0;
   uint8_t dummy=0;
   if (fchigh==0 || fclow == 0){

-    fcs=countFC(BitStream, BitLen, &dummy);
+    fcs = countFC(BitStream, BitLen, &dummy);

     if (fcs==0){
       fchigh=10;
       fclow=8;
     if (fcs==0){
       fchigh=10;
       fclow=8;


@@ -870,22 +1089,51 @@ int CmdFSKrawdemod(const char *Cmd)
     rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
     if (rfLen == 0) rfLen = 50;
   }
     rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
     if (rfLen == 0) rfLen = 50;
   }

-  PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow);
+  if (verbose) PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow);

   int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
   if (size>0){
   int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
   if (size>0){

-    PrintAndLog("FSK decoded bitstream:");

     setDemodBuf(BitStream,size,0);
 
     // Now output the bitstream to the scrollback by line of 16 bits
     if(size > (8*32)+2) size = (8*32)+2; //only output a max of 8 blocks of 32 bits  most tags will have full bit stream inside that sample size
     setDemodBuf(BitStream,size,0);
 
     // Now output the bitstream to the scrollback by line of 16 bits
     if(size > (8*32)+2) size = (8*32)+2; //only output a max of 8 blocks of 32 bits  most tags will have full bit stream inside that sample size

-    printBitStream(BitStream,size);
+    if (verbose) {
+      PrintAndLog("FSK decoded bitstream:");
+      printBitStream(BitStream,size);
+    }
+

     return 1;
   } else{
     return 1;
   } else{

-    PrintAndLog("no FSK data found");
+    if (verbose) PrintAndLog("no FSK data found");

   }
   return 0;
 }
 
   }
   return 0;
 }
 

+//by marshmellow
+//fsk raw demod and print binary
+//takes 4 arguments - Clock, invert, fchigh, fclow
+//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
+int CmdFSKrawdemod(const char *Cmd)
+{
+  char cmdp = param_getchar(Cmd, 0);
+  if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+    PrintAndLog("Usage:  data rawdemod fs [clock] <invert> [fchigh] [fclow]");
+    PrintAndLog("     [set clock as integer] optional, omit for autodetect.");
+    PrintAndLog("     <invert>, 1 for invert output, can be used even if the clock is omitted");
+    PrintAndLog("     [fchigh], larger field clock length, omit for autodetect");
+    PrintAndLog("     [fclow], small field clock length, omit for autodetect");
+    PrintAndLog("");
+    PrintAndLog("    sample: data rawdemod fs           = demod an fsk tag from GraphBuffer using autodetect");
+    PrintAndLog("          : data rawdemod fs 32        = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
+    PrintAndLog("          : data rawdemod fs 1         = demod an fsk tag from GraphBuffer using autodetect, invert output");   
+    PrintAndLog("          : data rawdemod fs 32 1      = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
+    PrintAndLog("          : data rawdemod fs 64 0 8 5  = demod an fsk1 RF/64 tag from GraphBuffer");
+    PrintAndLog("          : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
+    PrintAndLog("          : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
+    return 0;
+  }
+  return FSKrawDemod(Cmd, TRUE);
+}
+

 //by marshmellow (based on existing demod + holiman's refactor)
 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
 //print full HID Prox ID and some bit format details if found
 //by marshmellow (based on existing demod + holiman's refactor)
 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
 //print full HID Prox ID and some bit format details if found


@@ -1007,9 +1255,12 @@ int CmdFSKdemodParadox(const char *Cmd)
   }
   uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
   uint32_t cardnum = (lo>>10)&0xFFFF;
   }
   uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
   uint32_t cardnum = (lo>>10)&0xFFFF;

-  
-  PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
-    hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF );
+  uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
+  uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
+  uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
+
+  PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
+    hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);

   setDemodBuf(BitStream,BitLen,idx);
   if (g_debugMode){ 
     PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
   setDemodBuf(BitStream,BitLen,idx);
   if (g_debugMode){ 
     PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);


@@ -1179,16 +1430,16 @@ int CmdFSKdemodAWID(const char *Cmd)
     fc = bytebits_to_byte(BitStream+9, 8);
     cardnum = bytebits_to_byte(BitStream+17, 16);
     code1 = bytebits_to_byte(BitStream+8,fmtLen);
     fc = bytebits_to_byte(BitStream+9, 8);
     cardnum = bytebits_to_byte(BitStream+17, 16);
     code1 = bytebits_to_byte(BitStream+8,fmtLen);

-    PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
+    PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);

   } else {
     cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
     if (fmtLen>32){
       code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
       code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
   } else {
     cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
     if (fmtLen>32){
       code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
       code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);

-      PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+      PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);

     } else{
       code1 = bytebits_to_byte(BitStream+8,fmtLen);
     } else{
       code1 = bytebits_to_byte(BitStream+8,fmtLen);

-      PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
+      PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);

     }
   }
   if (g_debugMode){
     }
   }
   if (g_debugMode){


@@ -1248,7 +1499,17 @@ int CmdFSKdemodPyramid(const char *Cmd)
   // w = wiegand parity, x = extra space for other formats
   // p = unknown checksum
   // (26 bit format shown)
   // w = wiegand parity, x = extra space for other formats
   // p = unknown checksum
   // (26 bit format shown)

-  
+
+  //get bytes for checksum calc
+  uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
+  uint8_t csBuff[14] = {0x00};
+  for (uint8_t i = 0; i < 13; i++){
+    csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
+  }
+  //check checksum calc
+  //checksum calc thanks to ICEMAN!!
+  uint32_t checkCS =  CRC8Maxim(csBuff,13);
+

   //get raw ID before removing parities
   uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32);
   uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32);
   //get raw ID before removing parities
   uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32);
   uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32);


@@ -1258,7 +1519,8 @@ int CmdFSKdemodPyramid(const char *Cmd)
 
   size = removeParity(BitStream, idx+8, 8, 1, 120);
   if (size != 105){
 
   size = removeParity(BitStream, idx+8, 8, 1, 120);
   if (size != 105){

-    if (g_debugMode==1) PrintAndLog("DEBUG: Error at parity check-tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
+    if (g_debugMode==1) 
+      PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);

     return 0;
   }
 
     return 0;
   }
 


@@ -1299,23 +1561,28 @@ int CmdFSKdemodPyramid(const char *Cmd)
     fc = bytebits_to_byte(BitStream+73, 8);
     cardnum = bytebits_to_byte(BitStream+81, 16);
     code1 = bytebits_to_byte(BitStream+72,fmtLen);
     fc = bytebits_to_byte(BitStream+73, 8);
     cardnum = bytebits_to_byte(BitStream+81, 16);
     code1 = bytebits_to_byte(BitStream+72,fmtLen);

-    PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
+    PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);

   } else if (fmtLen==45){
     fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
     fc = bytebits_to_byte(BitStream+53, 10);
     cardnum = bytebits_to_byte(BitStream+63, 32);
   } else if (fmtLen==45){
     fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
     fc = bytebits_to_byte(BitStream+53, 10);
     cardnum = bytebits_to_byte(BitStream+63, 32);

-    PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+    PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);

   } else {
     cardnum = bytebits_to_byte(BitStream+81, 16);
     if (fmtLen>32){
       //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
       //code2 = bytebits_to_byte(BitStream+(size-32),32);
   } else {
     cardnum = bytebits_to_byte(BitStream+81, 16);
     if (fmtLen>32){
       //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
       //code2 = bytebits_to_byte(BitStream+(size-32),32);

-      PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+      PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);

     } else{
       //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
     } else{
       //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);

-      PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+      PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);

     }
   }
     }
   }

+  if (checksum == checkCS)
+    PrintAndLog("Checksum %02x passed", checksum);
+  else
+    PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
+

   if (g_debugMode){
     PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
     printDemodBuff();
   if (g_debugMode){
     PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
     printDemodBuff();


@@ -1443,7 +1710,7 @@ int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating
 
 //by marshmellow
 //attempt to psk1 demod graph buffer
 
 //by marshmellow
 //attempt to psk1 demod graph buffer

-int PSKDemod(const char *Cmd, uint8_t verbose)
+int PSKDemod(const char *Cmd, bool verbose)

 {
   int invert=0;
   int clk=0;
 {
   int invert=0;
   int clk=0;


@@ -1454,26 +1721,36 @@ int PSKDemod(const char *Cmd, uint8_t verbose)
     clk=0;
   }
   if (invert != 0 && invert != 1) {
     clk=0;
   }
   if (invert != 0 && invert != 1) {

-    PrintAndLog("Invalid argument: %s", Cmd);
-    return -1;
+    if (verbose) PrintAndLog("Invalid argument: %s", Cmd);
+    return 0;

   }
   uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
   size_t BitLen = getFromGraphBuf(BitStream);
   }
   uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
   size_t BitLen = getFromGraphBuf(BitStream);

-  if (BitLen==0) return 0;
+  if (BitLen==0) return -1;
+  uint8_t carrier=countPSK_FC(BitStream, BitLen);
+  if (carrier!=2 && carrier!=4 && carrier!=8){
+    //invalid carrier
+    return 0;
+  }

   int errCnt=0;
   int errCnt=0;

-  errCnt = pskRawDemod(BitStream, &BitLen,&clk,&invert);
+  errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);

   if (errCnt > maxErr){
   if (errCnt > maxErr){

-    if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
-    return -1;
+    if (g_debugMode==1 && verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+    return 0;

   } 
   if (errCnt<0|| BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)
   } 
   if (errCnt<0|| BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)

-    if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
-    return -1;
+    if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+    return 0;
+  }
+  if (verbose){
+    PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+    if (errCnt>0){
+      PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+    }

   }
   }

-  if (verbose) PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);

   //prime demod buffer for output
   setDemodBuf(BitStream,BitLen,0);
   //prime demod buffer for output
   setDemodBuf(BitStream,BitLen,0);

-  return errCnt;
+  return 1;

 }
 
 // Indala 26 bit decode
 }
 
 // Indala 26 bit decode


@@ -1488,7 +1765,7 @@ int CmdIndalaDecode(const char *Cmd)
                ans = PSKDemod("32", 0);
        }
 
                ans = PSKDemod("32", 0);
        }
 

-       if (ans < 0){
+       if (!ans){

                if (g_debugMode==1) 
                        PrintAndLog("Error1: %d",ans);
                return 0;
                if (g_debugMode==1) 
                        PrintAndLog("Error1: %d",ans);
                return 0;


@@ -1561,27 +1838,12 @@ int CmdIndalaDecode(const char *Cmd)
 // takes 3 arguments - clock, invert, maxErr as integers
 // attempts to demodulate nrz only
 // prints binary found and saves in demodbuffer for further commands
 // takes 3 arguments - clock, invert, maxErr as integers
 // attempts to demodulate nrz only
 // prints binary found and saves in demodbuffer for further commands

-int CmdNRZrawDemod(const char *Cmd)
+
+int NRZrawDemod(const char *Cmd, bool verbose)

 {
   int invert=0;
   int clk=0;
   int maxErr=100;
 {
   int invert=0;
   int clk=0;
   int maxErr=100;

-  char cmdp = param_getchar(Cmd, 0);
-  if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
-    PrintAndLog("Usage:  data rawdemod nr [clock] <0|1> [maxError]");
-    PrintAndLog("     [set clock as integer] optional, if not set, autodetect.");
-    PrintAndLog("     <invert>, 1 for invert output");
-    PrintAndLog("     [set maximum allowed errors], default = 100.");
-    PrintAndLog("");
-    PrintAndLog("    sample: data nrzrawdemod        = demod a nrz/direct tag from GraphBuffer");
-    PrintAndLog("          : data nrzrawdemod 32     = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
-    PrintAndLog("          : data nrzrawdemod 32 1   = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
-    PrintAndLog("          : data nrzrawdemod 1      = demod a nrz/direct tag from GraphBuffer while inverting data");
-    PrintAndLog("          : data nrzrawdemod 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
-
-    return 0;
-  }
- 

   sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
   if (clk==1){
     invert=1;
   sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
   if (clk==1){
     invert=1;


@@ -1597,25 +1859,45 @@ int CmdNRZrawDemod(const char *Cmd)
   int errCnt=0;
   errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr);
   if (errCnt > maxErr){
   int errCnt=0;
   errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr);
   if (errCnt > maxErr){

-    if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+    if (g_debugMode==1 && verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);

     return 0;
   } 
   if (errCnt<0|| BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)
     return 0;
   } 
   if (errCnt<0|| BitLen<16){  //throw away static - allow 1 and -1 (in case of threshold command first)

-    if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+    if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);

     return 0;
   }
   PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
   //prime demod buffer for output
   setDemodBuf(BitStream,BitLen,0);
 
     return 0;
   }
   PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
   //prime demod buffer for output
   setDemodBuf(BitStream,BitLen,0);
 

-  if (errCnt>0){
+  if (errCnt>0 && verbose){

     PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
     PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);

-  }else{

   }
   }

-  PrintAndLog("NRZ demoded bitstream:");
-  // Now output the bitstream to the scrollback by line of 16 bits
-  printDemodBuff();
-  return 1;
+  if (verbose) {
+    PrintAndLog("NRZ demoded bitstream:");
+    // Now output the bitstream to the scrollback by line of 16 bits
+    printDemodBuff();
+  }
+  return 1; 
+}
+
+int CmdNRZrawDemod(const char *Cmd)
+{
+  char cmdp = param_getchar(Cmd, 0);
+  if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+    PrintAndLog("Usage:  data rawdemod nr [clock] <0|1> [maxError]");
+    PrintAndLog("     [set clock as integer] optional, if not set, autodetect.");
+    PrintAndLog("     <invert>, 1 for invert output");
+    PrintAndLog("     [set maximum allowed errors], default = 100.");
+    PrintAndLog("");
+    PrintAndLog("    sample: data rawdemod nr        = demod a nrz/direct tag from GraphBuffer");
+    PrintAndLog("          : data rawdemod nr 32     = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
+    PrintAndLog("          : data rawdemod nr 32 1   = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
+    PrintAndLog("          : data rawdemod nr 1      = demod a nrz/direct tag from GraphBuffer while inverting data");
+    PrintAndLog("          : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+    return 0;
+  }
+  return NRZrawDemod(Cmd, TRUE);

 }
 
 // by marshmellow
 }
 
 // by marshmellow


@@ -1624,7 +1906,7 @@ int CmdNRZrawDemod(const char *Cmd)
 // prints binary found and saves in demodbuffer for further commands
 int CmdPSK1rawDemod(const char *Cmd)
 {
 // prints binary found and saves in demodbuffer for further commands
 int CmdPSK1rawDemod(const char *Cmd)
 {

-  int errCnt;
+  int ans;

   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data rawdemod p1 [clock] <0|1> [maxError]");
   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data rawdemod p1 [clock] <0|1> [maxError]");


@@ -1632,23 +1914,20 @@ int CmdPSK1rawDemod(const char *Cmd)
     PrintAndLog("     <invert>, 1 for invert output");
     PrintAndLog("     [set maximum allowed errors], default = 100.");
     PrintAndLog("");
     PrintAndLog("     <invert>, 1 for invert output");
     PrintAndLog("     [set maximum allowed errors], default = 100.");
     PrintAndLog("");

-    PrintAndLog("    sample: data psk1rawdemod        = demod a psk1 tag from GraphBuffer");
-    PrintAndLog("          : data psk1rawdemod 32     = demod a psk1 tag from GraphBuffer using a clock of RF/32");
-    PrintAndLog("          : data psk1rawdemod 32 1   = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
-    PrintAndLog("          : data psk1rawdemod 1      = demod a psk1 tag from GraphBuffer while inverting data");
-    PrintAndLog("          : data psk1rawdemod 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+    PrintAndLog("    sample: data rawdemod p1        = demod a psk1 tag from GraphBuffer");
+    PrintAndLog("          : data rawdemod p1 32     = demod a psk1 tag from GraphBuffer using a clock of RF/32");
+    PrintAndLog("          : data rawdemod p1 32 1   = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
+    PrintAndLog("          : data rawdemod p1 1      = demod a psk1 tag from GraphBuffer while inverting data");
+    PrintAndLog("          : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");

     return 0;
   }
     return 0;
   }

-  errCnt = PSKDemod(Cmd, 1);
+  ans = PSKDemod(Cmd, TRUE);

   //output
   //output

-  if (errCnt<0){
-    if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); 
+  if (!ans){
+    if (g_debugMode) PrintAndLog("Error demoding: %d",ans); 

     return 0;
   }
     return 0;
   }

-  if (errCnt>0){
-    PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
-  }else{
-  }
+ 

   PrintAndLog("PSK demoded bitstream:");
   // Now output the bitstream to the scrollback by line of 16 bits
   printDemodBuff();
   PrintAndLog("PSK demoded bitstream:");
   // Now output the bitstream to the scrollback by line of 16 bits
   printDemodBuff();


@@ -1659,7 +1938,7 @@ int CmdPSK1rawDemod(const char *Cmd)
 // takes same args as cmdpsk1rawdemod
 int CmdPSK2rawDemod(const char *Cmd)
 {
 // takes same args as cmdpsk1rawdemod
 int CmdPSK2rawDemod(const char *Cmd)
 {

-  int errCnt=0;
+  int ans=0;

   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data rawdemod p2 [clock] <0|1> [maxError]");
   char cmdp = param_getchar(Cmd, 0);
   if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
     PrintAndLog("Usage:  data rawdemod p2 [clock] <0|1> [maxError]");


@@ -1667,31 +1946,22 @@ int CmdPSK2rawDemod(const char *Cmd)
     PrintAndLog("     <invert>, 1 for invert output");
     PrintAndLog("     [set maximum allowed errors], default = 100.");
     PrintAndLog("");
     PrintAndLog("     <invert>, 1 for invert output");
     PrintAndLog("     [set maximum allowed errors], default = 100.");
     PrintAndLog("");

-    PrintAndLog("    sample: data psk2rawdemod        = demod a psk2 tag from GraphBuffer, autodetect clock");
-    PrintAndLog("          : data psk2rawdemod 32     = demod a psk2 tag from GraphBuffer using a clock of RF/32");
-    PrintAndLog("          : data psk2rawdemod 32 1   = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
-    PrintAndLog("          : data psk2rawdemod 1      = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
-    PrintAndLog("          : data psk2rawdemod 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
+    PrintAndLog("    sample: data rawdemod p2         = demod a psk2 tag from GraphBuffer, autodetect clock");
+    PrintAndLog("          : data rawdemod p2 32      = demod a psk2 tag from GraphBuffer using a clock of RF/32");
+    PrintAndLog("          : data rawdemod p2 32 1    = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
+    PrintAndLog("          : data rawdemod p2 1       = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
+    PrintAndLog("          : data rawdemod p2 64 1 0  = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");

     return 0;
   }
     return 0;
   }

-  errCnt=PSKDemod(Cmd, 1);
-  if (errCnt<0){
-    if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);  
+  ans=PSKDemod(Cmd, TRUE);
+  if (!ans){
+    if (g_debugMode) PrintAndLog("Error demoding: %d",ans);  

     return 0;
   } 
   psk1TOpsk2(DemodBuffer, DemodBufferLen);
     return 0;
   } 
   psk1TOpsk2(DemodBuffer, DemodBufferLen);

-  if (errCnt>0){
-    if (g_debugMode){
-      PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
-      PrintAndLog("PSK2 demoded bitstream:");
-      // Now output the bitstream to the scrollback by line of 16 bits
-      printDemodBuff();
-    }
-  }else{
-    PrintAndLog("PSK2 demoded bitstream:");
-    // Now output the bitstream to the scrollback by line of 16 bits
-    printDemodBuff();  
-  }
+  PrintAndLog("PSK2 demoded bitstream:");
+  // Now output the bitstream to the scrollback by line of 16 bits
+  printDemodBuff();  

   return 1;
 }
 
   return 1;
 }
 


@@ -1702,12 +1972,14 @@ int CmdRawDemod(const char *Cmd)
 
        if (strlen(Cmd) > 14 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
                PrintAndLog("Usage:  data rawdemod [modulation] <help>|<options>");
 
        if (strlen(Cmd) > 14 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
                PrintAndLog("Usage:  data rawdemod [modulation] <help>|<options>");

-               PrintAndLog("   [modulation] as 2 char, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");           
+               PrintAndLog("   [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");           
+               PrintAndLog("         'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");

                PrintAndLog("   <help> as 'h', prints the help for the specific modulation");   
                PrintAndLog("   <options> see specific modulation help for optional parameters");                               
                PrintAndLog("");
                PrintAndLog("    sample: data rawdemod fs h         = print help for ask/raw demod");
                PrintAndLog("          : data rawdemod fs           = demod GraphBuffer using: fsk - autodetect");
                PrintAndLog("   <help> as 'h', prints the help for the specific modulation");   
                PrintAndLog("   <options> see specific modulation help for optional parameters");                               
                PrintAndLog("");
                PrintAndLog("    sample: data rawdemod fs h         = print help for ask/raw demod");
                PrintAndLog("          : data rawdemod fs           = demod GraphBuffer using: fsk - autodetect");

+               PrintAndLog("          : data rawdemod ab           = demod GraphBuffer using: ask/biphase - autodetect");

                PrintAndLog("          : data rawdemod am           = demod GraphBuffer using: ask/manchester - autodetect");
                PrintAndLog("          : data rawdemod ar           = demod GraphBuffer using: ask/raw - autodetect");
                PrintAndLog("          : data rawdemod nr           = demod GraphBuffer using: nrz/direct - autodetect");
                PrintAndLog("          : data rawdemod am           = demod GraphBuffer using: ask/manchester - autodetect");
                PrintAndLog("          : data rawdemod ar           = demod GraphBuffer using: ask/raw - autodetect");
                PrintAndLog("          : data rawdemod nr           = demod GraphBuffer using: nrz/direct - autodetect");


@@ -1719,6 +1991,8 @@ int CmdRawDemod(const char *Cmd)
        int ans = 0;
        if (cmdp == 'f' && cmdp2 == 's'){
                ans = CmdFSKrawdemod(Cmd+3);
        int ans = 0;
        if (cmdp == 'f' && cmdp2 == 's'){
                ans = CmdFSKrawdemod(Cmd+3);

+       } else if(cmdp == 'a' && cmdp2 == 'b'){
+               ans = Cmdaskbiphdemod(Cmd+3);

        } else if(cmdp == 'a' && cmdp2 == 'm'){
                ans = Cmdaskmandemod(Cmd+3);
        } else if(cmdp == 'a' && cmdp2 == 'r'){
        } else if(cmdp == 'a' && cmdp2 == 'm'){
                ans = Cmdaskmandemod(Cmd+3);
        } else if(cmdp == 'a' && cmdp2 == 'r'){


@@ -1793,6 +2067,7 @@ int CmdHide(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

+//zero mean GraphBuffer

 int CmdHpf(const char *Cmd)
 {
   int i;
 int CmdHpf(const char *Cmd)
 {
   int i;


@@ -2382,9 +2657,10 @@ static command_t CommandTable[] =
   //{"askdemod",      Cmdaskdemod,        1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
   {"askedgedetect", CmdAskEdgeDetect,   1, "[threshold] Adjust Graph for manual ask demod using length of sample differences to detect the edge of a wave (default = 25)"},
   {"askem410xdemod",CmdAskEM410xDemod,  1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
   //{"askdemod",      Cmdaskdemod,        1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
   {"askedgedetect", CmdAskEdgeDetect,   1, "[threshold] Adjust Graph for manual ask demod using length of sample differences to detect the edge of a wave (default = 25)"},
   {"askem410xdemod",CmdAskEM410xDemod,  1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},

+  {"askgproxiidemod",CmdG_Prox_II_Demod,1, "Demodulate a G Prox II tag from GraphBuffer"},

   //{"askmandemod",   Cmdaskmandemod,     1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
   //{"askrawdemod",   Cmdaskrawdemod,     1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
   //{"askmandemod",   Cmdaskmandemod,     1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
   //{"askrawdemod",   Cmdaskrawdemod,     1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},

-  {"autocorr",      CmdAutoCorr,        1, "<window length> -- Autocorrelation over window"},
+  {"autocorr",      CmdAutoCorr,        1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},

   {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
   {"bitsamples",    CmdBitsamples,      0, "Get raw samples as bitstring"},
   //{"bitstream",     CmdBitstream,       1, "[clock rate] -- Convert waveform into a bitstream"},
   {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
   {"bitsamples",    CmdBitsamples,      0, "Get raw samples as bitstring"},
   //{"bitstream",     CmdBitstream,       1, "[clock rate] -- Convert waveform into a bitstream"},


@@ -2399,6 +2675,7 @@ static command_t CommandTable[] =
   {"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
   {"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate a Paradox FSK tag from GraphBuffer"},
   //{"fskrawdemod",   CmdFSKrawdemod,     1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
   {"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
   {"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate a Paradox FSK tag from GraphBuffer"},
   //{"fskrawdemod",   CmdFSKrawdemod,     1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},

+  {"getbitstream",  CmdGetBitStream,    1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},

   {"grid",          CmdGrid,            1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
   {"hexsamples",    CmdHexsamples,      0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
   {"hide",          CmdHide,            1, "Hide graph window"},
   {"grid",          CmdGrid,            1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
   {"hexsamples",    CmdHexsamples,      0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
   {"hide",          CmdHide,            1, "Hide graph window"},


@@ -2414,6 +2691,7 @@ static command_t CommandTable[] =
   //{"nrzrawdemod",   CmdNRZrawDemod,     1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"},
   {"plot",          CmdPlot,            1, "Show graph window (hit 'h' in window for keystroke help)"},
   //{"pskdetectclock",CmdDetectPSKClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"},
   //{"nrzrawdemod",   CmdNRZrawDemod,     1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"},
   {"plot",          CmdPlot,            1, "Show graph window (hit 'h' in window for keystroke help)"},
   //{"pskdetectclock",CmdDetectPSKClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"},

+  {"printdemodbuffer",CmdPrintDemodBuff,1, "[x] -- print the data in the DemodBuffer - 'x' for hex output"},

   {"pskindalademod",CmdIndalaDecode,    1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
   //{"psk1rawdemod",  CmdPSK1rawDemod,    1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"},
   //{"psk2rawdemod",  CmdPSK2rawDemod,    1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk2 tags and output binary (args optional)"},
   {"pskindalademod",CmdIndalaDecode,    1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
   //{"psk1rawdemod",  CmdPSK1rawDemod,    1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"},
   //{"psk2rawdemod",  CmdPSK2rawDemod,    1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk2 tags and output binary (args optional)"},