fix buffer length bugs

[proxmark3-svn] / client / cmdlfvisa2000.c

diff --git a/client/cmdlfvisa2000.c b/client/cmdlfvisa2000.c
index 292fa1a3de2b240c91ba8cac97635f0f1147880f..b461d94d56bb698265684ae48671dfb38f534908 100644 (file)
--- a/client/cmdlfvisa2000.c
+++ b/client/cmdlfvisa2000.c
@@ -4,8 +4,9 @@
 // at your option, any later version. See the LICENSE.txt file for the text of
 // the license.
 //-----------------------------------------------------------------------------
-// Low frequency visa 200 tag commands
+// Low frequency visa 2000 tag commands
 // by iceman
+// ASK/Manchester, RF/64, STT, 96 bits (complete)
 //-----------------------------------------------------------------------------
 
 #include "cmdlfvisa2000.h"
@@ -83,12 +84,12 @@ static uint8_t visa_parity( uint32_t id) {
 /**
 *
 * 56495332 00096ebd 00000077 —> tag id 618173
-* aaaaaaaa iiiiiiii -----..c
+* aaaaaaaa iiiiiiii -----ppc
 *
 * a = fixed value  ascii 'VIS2'
 * i = card id
+* p = even parity bit for each nibble in card id.
 * c = checksum  (xor of card id)
-* . = unknown 
 * 
 **/
 //see ASKDemod for what args are accepted
@@ -146,9 +147,8 @@ int CmdVisa2kDemod(const char *Cmd) {
 }
 
 int CmdVisa2kRead(const char *Cmd) {
-       CmdLFRead("s");
        //64*96*2=12288 samples just in case we just missed the first preamble we can still catch 2 of them
-       getSamples("12500",true); 
+       lf_read(true, 12500);
        return CmdVisa2kDemod(Cmd);
 }