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fix my understanding of REQB vs WUPB

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This commit is contained in:
marshmellow42 2015-07-03 22:35:03 -04:00
commit 146600578c
2 changed files with 11 additions and 13 deletions
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20
armsrc/iso14443b.c
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@ -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");
}