RfidResearchGroup/proxmark3
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CHG: minor code clean up.

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ADD: tunesamples in cmddata.c  pullrequest #33,  was removed by Marshmellows other commits. I returned it.
This commit is contained in:
iceman1001 2015-01-07 21:29:38 +01:00
parent 52ab55ab0d
commit d91a31f935
2 changed files with 54 additions and 27 deletions
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30
armsrc/lfops.c
View file

@ -647,15 +647,12 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
if (ledcontrol) LED_A_ON();
DoAcquisition125k_internal(-1,true);
size = sizeof(BigBuf);
if (size < 2000) continue;
// FSK demodulator
int bitLen = HIDdemodFSK(dest,size,&hi2,&hi,&lo);
size = HIDdemodFSK(dest, sizeof(BigBuf), &hi2, &hi, &lo);
WDT_HIT();
if (bitLen>0 && lo>0){
if (size>0 && lo>0){
// final loop, go over previously decoded manchester data and decode into usable tag ID
// 111000 bit pattern represent start of frame, 01 pattern represents a 1 and 10 represents a 0
if (hi2 != 0){ //extra large HID tags
@ -726,8 +723,7 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
{
uint8_t *dest = (uint8_t *)BigBuf;
size_t size=0; //, found=0;
uint32_t bitLen=0;
size_t size=0;
int clk=0, invert=0, errCnt=0;
uint64_t lo=0;
// Configure to go in 125Khz listen mode
@ -740,21 +736,22 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
DoAcquisition125k_internal(-1,true);
size = sizeof(BigBuf);
if (size < 2000) continue;
// FSK demodulator
//int askmandemod(uint8_t *BinStream,uint32_t *BitLen,int *clk, int *invert);
bitLen=size;
//Dbprintf("DEBUG: Buffer got");
errCnt = askmandemod(dest,&bitLen,&clk,&invert); //HIDdemodFSK(dest,size,&hi2,&hi,&lo);
//askdemod and manchester decode
errCnt = askmandemod(dest, &size, &clk, &invert);
//Dbprintf("DEBUG: ASK Got");
WDT_HIT();
if (errCnt>=0){
lo = Em410xDecode(dest,bitLen);
lo = Em410xDecode(dest,size);
//Dbprintf("DEBUG: EM GOT");
//printEM410x(lo);
if (lo>0){
Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)",(uint32_t)(lo>>32),(uint32_t)lo,(uint32_t)(lo&0xFFFF),(uint32_t)((lo>>16LL) & 0xFF),(uint32_t)(lo & 0xFFFFFF));
Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)",
(uint32_t)(lo>>32),
(uint32_t)lo,
(uint32_t)(lo&0xFFFF),
(uint32_t)((lo>>16LL) & 0xFF),
(uint32_t)(lo & 0xFFFFFF));
}
if (findone){
if (ledcontrol) LED_A_OFF();
@ -769,7 +766,6 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
invert=0;
errCnt=0;
size=0;
//SpinDelay(50);
}
DbpString("Stopped");
if (ledcontrol) LED_A_OFF();
@ -1519,6 +1515,7 @@ int IsBlock1PCF7931(uint8_t *Block) {
return 0;
}
#define ALLOC 16
void ReadPCF7931() {
@ -1778,7 +1775,6 @@ void SendForward(uint8_t fwd_bit_count) {
}
}
void EM4xLogin(uint32_t Password) {
uint8_t fwd_bit_count;

51
client/cmddata.c
View file

@ -891,21 +891,52 @@ int CmdSamples(const char *Cmd)
int CmdTuneSamples(const char *Cmd)
{
int cnt = 0;
int n = 255;
uint8_t got[255];
int timeout = 0;
printf("\nMeasuring antenna characteristics, please wait...");
PrintAndLog("Reading %d samples\n", n);
GetFromBigBuf(got,n,7256); // armsrc/apps.h: #define FREE_BUFFER_OFFSET 7256
WaitForResponse(CMD_ACK,NULL);
for (int j = 0; j < n; j++) {
GraphBuffer[cnt++] = ((int)got[j]) - 128;
UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
SendCommand(&c);
UsbCommand resp;
while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
timeout++;
printf(".");
if (timeout > 7) {
PrintAndLog("\nNo response from Proxmark. Aborting...");
return 1;
}
}
int peakv, peakf;
int vLf125, vLf134, vHf;
vLf125 = resp.arg[0] & 0xffff;
vLf134 = resp.arg[0] >> 16;
vHf = resp.arg[1] & 0xffff;;
peakf = resp.arg[2] & 0xffff;
peakv = resp.arg[2] >> 16;
PrintAndLog("");
PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
if (peakv<2000)
PrintAndLog("# Your LF antenna is unusable.");
else if (peakv<10000)
PrintAndLog("# Your LF antenna is marginal.");
if (vHf<2000)
PrintAndLog("# Your HF antenna is unusable.");
else if (vHf<5000)
PrintAndLog("# Your HF antenna is marginal.");
for (int i = 0; i < 256; i++) {
GraphBuffer[i] = resp.d.asBytes[i] - 128;
}
PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
PrintAndLog("\n");
GraphTraceLen = n;
RepaintGraphWindow();
GraphTraceLen = 256;
ShowGraphWindow();
return 0;
}