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fix: lf cmdread. skip WaitMS(100) when keep signal field ON.

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4 extra symbol.
avoid include SOF in crc-hitag
This commit is contained in:
douniwan5788 2024-08-19 17:50:12 +08:00
commit eca9830050
2 changed files with 14 additions and 6 deletions
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3
armsrc/lfops.c
View file

@ -426,7 +426,10 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint16_t period_0, uint
// start timer
StartTicks();
if (!prev_keep) {
WaitMS(100);
}
// clear read buffer
BigBuf_Clear_keep_EM();

15
client/src/cmdlf.c
View file

@ -324,6 +324,10 @@ int CmdLFCommandRead(const char *Cmd) {
uint8_t i;
for (i = 0; i < cmd_len; i++) {
if ((cmd[i] != '0') && (cmd[i] != '1')) {
// avoid include 'W0S' in crc
crc_init_ref(&crc, 8, 0x1d, 0xff, 0, false, false);
n = 0;
data = 0;
continue;
}
data <<= 1;
@ -345,14 +349,14 @@ int CmdLFCommandRead(const char *Cmd) {
}
}
memcpy(payload.data, cmd, cmd_len);
memcpy(payload.data, cmd, cmd_len + 1);
// extra symbol definition
uint8_t index_extra = 0;
int i = 0;
for (; i < extra_arg_len;) {
if (index_extra < LF_CMDREAD_MAX_EXTRA_SYMBOLS - 1) {
if (index_extra < LF_CMDREAD_MAX_EXTRA_SYMBOLS) {
payload.symbol_extra[index_extra] = extra_arg[i];
int tmp = atoi(extra_arg + (i + 1));
payload.period_extra[index_extra] = tmp;
@ -362,14 +366,15 @@ int CmdLFCommandRead(const char *Cmd) {
i++;
} else {
PrintAndLogEx(WARNING, "Too many extra symbols, please define up to %i symbols", LF_CMDREAD_MAX_EXTRA_SYMBOLS);
PrintAndLogEx(ERR, "Too many extra symbols, please define up to %i symbols", LF_CMDREAD_MAX_EXTRA_SYMBOLS);
return PM3_EINVARG;
}
}
// bitbang mode
if (payload.delay == 0) {
if (payload.period_0 < 7 || payload.period_1 < 7) {
PrintAndLogEx(WARNING, "periods cannot be less than 7us in bit bang mode");
PrintAndLogEx(ERR, "periods cannot be less than 7us in bit bang mode");
return PM3_EINVARG;
}
}
@ -403,7 +408,7 @@ int CmdLFCommandRead(const char *Cmd) {
int ret = PM3_SUCCESS;
do {
clearCommandBuffer();
SendCommandNG(CMD_LF_MOD_THEN_ACQ_RAW_ADC, (uint8_t *)&payload, PAYLOAD_HEADER_SIZE + cmd_len);
SendCommandNG(CMD_LF_MOD_THEN_ACQ_RAW_ADC, (uint8_t *)&payload, PAYLOAD_HEADER_SIZE + cmd_len + 1);
PacketResponseNG resp;
// init to ZERO