X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c840385effee20347ec8179a393bf109c681de9d..4eabb8ad382f87aaee497d35e88c169da96b8fda:/client/cmdlfvisa2000.c

diff --git a/client/cmdlfvisa2000.c b/client/cmdlfvisa2000.c
index 42e1a00f..5c030ec3 100644
--- a/client/cmdlfvisa2000.c
+++ b/client/cmdlfvisa2000.c
@@ -45,13 +45,24 @@ static uint8_t visa_chksum( uint32_t id ) {
     return sum & 0xF;
 }
 
+/**
+*
+* 56495332 00096ebd 00000077 —> tag id 618173
+* aaaaaaaa iiiiiiii -----..c
+*
+* a = fixed value  ascii 'VIS2'
+* i = card id
+* c = checksum  (xor of card id)
+* . = unknown 
+* 
+**/
 //see ASKDemod for what args are accepted
 int CmdVisa2kDemod(const char *Cmd) {
 
 	// save GraphBuffer - to restore it later	
 	save_restoreGB(1);
 	
-	CmdAskEdgeDetect("");
+	//sCmdAskEdgeDetect("");
 	
 	//ASK / Manchester
 	bool st = TRUE;
@@ -77,12 +88,13 @@ int CmdVisa2kDemod(const char *Cmd) {
 		return 0;
 	}
 	setDemodBuf(DemodBuffer, 96, ans);
-	
+	setGrid_Clock(64);
+		
 	//got a good demod
 	uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
 	uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
 	uint32_t raw3 = bytebits_to_byte(DemodBuffer+64, 32);
-
+	
 	// chksum
 	uint8_t calc = visa_chksum(raw2);
 	uint8_t chk = raw3 & 0xF;	
@@ -99,14 +111,14 @@ int CmdVisa2kDemod(const char *Cmd) {
 
 int CmdVisa2kRead(const char *Cmd) {
 	CmdLFRead("s");
-	getSamples("16000",TRUE);
+	getSamples("12000",TRUE);
 	return CmdVisa2kDemod(Cmd);
 }
 
 int CmdVisa2kClone(const char *Cmd) {
 
 	uint64_t id = 0;
-	uint32_t blocks[4] = {T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_64 | T55x7_ST_TERMINATOR |3<<T55x7_MAXBLOCK_SHIFT, BL0CK1, 0};
+	uint32_t blocks[4] = {T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_64 | T55x7_ST_TERMINATOR | 3 << T55x7_MAXBLOCK_SHIFT, BL0CK1, 0};
 
 	char cmdp = param_getchar(Cmd, 0);
 	if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_visa2k_clone();
@@ -116,7 +128,7 @@ int CmdVisa2kClone(const char *Cmd) {
 	//Q5
 	if (param_getchar(Cmd, 1) == 'Q' || param_getchar(Cmd, 1) == 'q') {
 		//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
-		blocks[0] = T5555_MODULATION_MANCHESTER | 64<<T5555_BITRATE_SHIFT | T5555_ST_TERMINATOR | 3<<T5555_MAXBLOCK_SHIFT;
+		blocks[0] = T5555_MODULATION_MANCHESTER | ((64-2)>>1) << T5555_BITRATE_SHIFT | T5555_ST_TERMINATOR | 3 << T5555_MAXBLOCK_SHIFT;
 	}
 	
 	//