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add lf em 4x05protect plus lf config s option (#833)

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* add "samples to skip" for lf config (mainly for lf snoop)
* add lf em 4x05protect command to write protection on em4x05 chips
* fix spacing
* and remove old comment git added back in..
* update changelog
* fix flags - only need 1 bit
This commit is contained in:
marshmellow42 2019-06-23 07:43:56 -04:00 • committed by pwpiwi
parent b8dd1ef649
commit 2de26056ce
8 changed files with 231 additions and 26 deletions
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34
client/cmdlf.c
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@ -224,24 +224,25 @@ int usage_lf_config(void)
{
PrintAndLog("Usage: lf config [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]");
PrintAndLog("Options: ");
PrintAndLog(" h This help");
PrintAndLog(" L Low frequency (125 KHz)");
PrintAndLog(" H High frequency (134 KHz)");
PrintAndLog(" q <divisor> Manually set divisor. 88-> 134 KHz, 95-> 125 KHz");
PrintAndLog(" b <bps> Sets resolution of bits per sample. Default (max): 8");
PrintAndLog(" d <decim> Sets decimation. A value of N saves only 1 in N samples. Default: 1");
PrintAndLog(" a [0|1] Averaging - if set, will average the stored sample value when decimating. Default: 1");
PrintAndLog(" t <threshold> Sets trigger threshold. 0 means no threshold (range: 0-128)");
PrintAndLog(" h This help");
PrintAndLog(" L Low frequency (125 KHz)");
PrintAndLog(" H High frequency (134 KHz)");
PrintAndLog(" q <divisor> Manually set divisor. 88-> 134 KHz, 95-> 125 KHz");
PrintAndLog(" b <bps> Sets resolution of bits per sample. Default (max): 8");
PrintAndLog(" d <decim> Sets decimation. A value of N saves only 1 in N samples. Default: 1");
PrintAndLog(" a [0|1] Averaging - if set, will average the stored sample value when decimating. Default: 1");
PrintAndLog(" t <threshold> Sets trigger threshold. 0 means no threshold (range: 0-128)");
PrintAndLog(" s <smplstoskip> Sets a number of samples to skip before capture. Default: 0");
PrintAndLog("Examples:");
PrintAndLog(" lf config b 8 L");
PrintAndLog(" Samples at 125KHz, 8bps.");
PrintAndLog(" Samples at 125KHz, 8bps.");
PrintAndLog(" lf config H b 4 d 3");
PrintAndLog(" Samples at 134KHz, averages three samples into one, stored with ");
PrintAndLog(" a resolution of 4 bits per sample.");
PrintAndLog(" Samples at 134KHz, averages three samples into one, stored with ");
PrintAndLog(" a resolution of 4 bits per sample.");
PrintAndLog(" lf read");
PrintAndLog(" Performs a read (active field)");
PrintAndLog(" Performs a read (active field)");
PrintAndLog(" lf snoop");
PrintAndLog(" Performs a snoop (no active field)");
PrintAndLog(" Performs a snoop (no active field)");
return 0;
}
@ -255,6 +256,7 @@ int CmdLFSetConfig(const char *Cmd)
bool errors = false;
int trigger_threshold =-1;//Means no change
uint8_t unsigned_trigg = 0;
int samples_to_skip = -1;
uint8_t cmdp =0;
while(param_getchar(Cmd, cmdp) != 0x00)
@ -295,6 +297,10 @@ int CmdLFSetConfig(const char *Cmd)
averaging = param_getchar(Cmd,cmdp+1) == '1';
cmdp+=2;
break;
case 's':
samples_to_skip = param_get32ex(Cmd,cmdp+1,0,10);
cmdp+=2;
break;
default:
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = 1;
@ -316,7 +322,7 @@ int CmdLFSetConfig(const char *Cmd)
if(bps >> 4) bps = 8;
sample_config config = {
decimation,bps,averaging,divisor,trigger_threshold
decimation,bps,averaging,divisor,trigger_threshold,samples_to_skip
};
//Averaging is a flag on high-bit of arg[1]
UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG};