more verification on FDX-B tag demod - reduce...

[proxmark3-svn] / armsrc / iso14443b.c

diff --git a/armsrc/iso14443b.c b/armsrc/iso14443b.c
index 76ad9e9a2639507bc2e5ae50740beb16ae03087e..31634a83bd6f8d63efa7c48bee20c5dfcb6ff5c0 100644 (file)
--- a/armsrc/iso14443b.c
+++ b/armsrc/iso14443b.c
@@ -321,16 +321,14 @@ static int GetIso14443bCommandFromReader(uint8_t *received, uint16_t *len)
 //-----------------------------------------------------------------------------
 void SimulateIso14443bTag(void)
 {
-       // the only commands we understand is REQB, AFI=0, Select All, N=8:
-       static const uint8_t cmd1[] = { 0x05, 0x00, 0x08, 0x39, 0x73 }; // REQB
-       // ... and REQB, AFI=0, Normal Request, N=0:
+       // the only commands we understand is WUPB, AFI=0, Select All, N=1:
+       static const uint8_t cmd1[] = { 0x05, 0x00, 0x08, 0x39, 0x73 }; // WUPB
+       // ... and REQB, AFI=0, Normal Request, N=1:
        static const uint8_t cmd2[] = { 0x05, 0x00, 0x00, 0x71, 0xFF }; // REQB
-       // ... and WUPB, AFI=0, N=8:
-       static const uint8_t cmd3[] = { 0x05, 0x08, 0x08, 0xF9, 0xBD }; // WUPB
        // ... and HLTB
-       static const uint8_t cmd4[] = { 0x50, 0xff, 0xff, 0xff, 0xff }; // HLTB
+       static const uint8_t cmd3[] = { 0x50, 0xff, 0xff, 0xff, 0xff }; // HLTB
        // ... and ATTRIB
-       static const uint8_t cmd5[] = { 0x1D, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; // ATTRIB
+       static const uint8_t cmd4[] = { 0x1D, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; // ATTRIB
 
        // ... and we always respond with ATQB, PUPI = 820de174, Application Data = 0x20381922,
        // supports only 106kBit/s in both directions, max frame size = 32Bytes,
@@ -391,14 +389,13 @@ void SimulateIso14443bTag(void)
 
                // Good, look at the command now.
                if ( (len == sizeof(cmd1) && memcmp(receivedCmd, cmd1, len) == 0)
-                       || (len == sizeof(cmd2) && memcmp(receivedCmd, cmd2, len) == 0)
-                       || (len == sizeof(cmd3) && memcmp(receivedCmd, cmd3, len) == 0) ) {
+                       || (len == sizeof(cmd2) && memcmp(receivedCmd, cmd2, len) == 0) ) {
                        resp = response1; 
                        respLen = sizeof(response1);
                        respCode = resp1Code; 
                        respCodeLen = resp1CodeLen;
-               } else if ( (len == sizeof(cmd4) && receivedCmd[0] == cmd4[0])
-                       || (len == sizeof(cmd5) && receivedCmd[0] == cmd5[0]) ) {
+               } else if ( (len == sizeof(cmd3) && receivedCmd[0] == cmd3[0])
+                       || (len == sizeof(cmd4) && receivedCmd[0] == cmd4[0]) ) {
                        resp = response2; 
                        respLen = sizeof(response2);
                        respCode = resp2Code; 
@@ -412,6 +409,7 @@ void SimulateIso14443bTag(void)
                                if(b1 != receivedCmd[len-2] || b2 != receivedCmd[len-1]) {
                                        // Not so good, try again.
                                        DbpString("+++CRC fail");
+               
                                } else {
                                        DbpString("CRC passes");
                                }