X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/ec9882b18c9e12a60bb0face34ea4bcc072c2dfb..9f7bbd24c9eabeed1cb92376750a549f9476f3ad:/client/cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index 15f4d3eb..d5b072c0 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -22,6 +22,7 @@
 #include "cmddata.h"
 #include "lfdemod.h"
 #include "usb_cmd.h"
+#include "crc.h"
 
 uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
 uint8_t g_debugMode;
@@ -84,7 +85,28 @@ void printDemodBuff(void)
 	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;
@@ -129,20 +151,19 @@ int CmdAmp(const char *Cmd)
  * 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;
 
-  // 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);
 
-  /* Detect high and lows and clock */
-	// (AL - clock???)
+  /* Detect high and lows */
   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
-    if ((GraphBuffer[i] == high) && (GraphBuffer[i - 1] == c)) {
+    if ((GraphBuffer[i] >= high) && (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 */
@@ -185,6 +206,23 @@ int Cmdaskdemod(const char *Cmd)
   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)
 {
@@ -500,9 +538,33 @@ int CmdBiphaseDecodeRaw(const char *Cmd)
 	PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
 	printBitStream(BitStream, size);
 	PrintAndLog("\nif bitstream does not look right try offset=1");
+  if (offset == 1) setDemodBuf(DemodBuffer,DemodBufferLen-1,1);  //remove first bit from raw demod
 	return 1;
 }
 
+// set demod buffer back to raw after biphase demod
+void setBiphaseDemodBuf(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
@@ -551,6 +613,100 @@ int ASKrawDemod(const char *Cmd, bool verbose)
   return 1;
 }
 
+//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)
+{
+  int ans = ASKrawDemod(Cmd, FALSE);
+  if (ans <= 0) {
+    if (g_debugMode) PrintAndLog("Error AskrawDemod: %d",ans);
+    return 0; //ans;
+  }
+  size_t size = DemodBufferLen;
+  ans = BiphaseRawDecode(DemodBuffer, &size, 0, 0); 
+  if (ans !=0) {
+    if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
+    return 0; //ans;
+  }
+  //call lfdemod.c demod for gProxII
+  ans = gProxII_Demod(DemodBuffer, &size);
+  if (ans < 0){
+    if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
+    //try biphase again
+    ans = BiphaseRawDecode(DemodBuffer, &size, 1, 0); 
+    if (ans != 0) {
+      if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
+      return 0;//ans;
+    }
+    ans = gProxII_Demod(DemodBuffer, &size);
+    if (ans < 0) {
+      if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
+      return ans;
+    }
+  }
+  //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 -1;
+      }
+      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);
+  setBiphaseDemodBuf(DemodBuffer+ans, 96);
+  return 1;
+}
+
 //by marshmellow - see ASKrawDemod
 int Cmdaskrawdemod(const char *Cmd)
 {
@@ -574,38 +730,80 @@ int Cmdaskrawdemod(const char *Cmd)
   return ASKrawDemod(Cmd, TRUE);
 }
 
-int CmdAutoCorr(const char *Cmd)
+int AutoCorrelate(int window, bool SaveGrph, bool verbose)
 {
   static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
-
-  int window = atoi(Cmd);
-
-  if (window == 0) {
-    PrintAndLog("needs a window");
-    return 0;
-  }
-  if (window >= GraphTraceLen) {
-    PrintAndLog("window must be smaller than trace (%d samples)",
-      GraphTraceLen);
-    return 0;
-  }
-
-  PrintAndLog("performing %d correlations", GraphTraceLen - window);
-
+  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;
+    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;
 }
 
+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;
@@ -1279,7 +1477,16 @@ int CmdFSKdemodPyramid(const char *Cmd)
   // 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
+  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);
@@ -1289,7 +1496,8 @@ int CmdFSKdemodPyramid(const char *Cmd)
 
   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;
   }
 
@@ -1347,6 +1555,11 @@ int CmdFSKdemodPyramid(const char *Cmd)
       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();
@@ -1649,11 +1862,11 @@ int CmdNRZrawDemod(const char *Cmd)
     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");
+    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);
@@ -1673,11 +1886,11 @@ int CmdPSK1rawDemod(const char *Cmd)
     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;
   }
   errCnt = PSKDemod(Cmd, TRUE);
@@ -1707,11 +1920,11 @@ int CmdPSK2rawDemod(const char *Cmd)
     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;
   }
   errCnt=PSKDemod(Cmd, TRUE);
@@ -1833,6 +2046,7 @@ int CmdHide(const char *Cmd)
   return 0;
 }
 
+//zero mean GraphBuffer
 int CmdHpf(const char *Cmd)
 {
   int i;
@@ -2422,9 +2636,10 @@ 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)"},
+  {"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)"},
-  {"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"},
@@ -2439,6 +2654,7 @@ 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)"},
+  {"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"},
@@ -2454,6 +2670,7 @@ 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"},
+  {"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)"},