github/RRG-Proxmark3
1
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-08-14 18:48:13 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

FIX: a minor bug fix from @marshmellow42 in "data raw" and ask/biphase.

Browse source 
ADD: started witha  ISO11784/85 demod function.
This commit is contained in:
iceman1001 2015-06-03 21:12:24 +02:00
commit 615f21dde2
4 changed files with 43 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

19
common/lfdemod.c
View file

@ -589,6 +589,25 @@ size_t removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t p
//return ID start index and size
return bitCnt;
}
// Ask/Biphase Demod then try to locate an ISO 11784/85 ID
int ISO11784demodBI(uint8_t *dest, size_t *size)
{
//make sure buffer has enough data
if (*size < 128*50) return -1;
if (justNoise(dest, *size)) return -2;
// FSK demodulator
*size = fskdemod(dest, *size, 50, 1, 10, 8); // fsk2a RF/50
if (*size < 96) return -3; //did we get a good demod?
uint8_t preamble[] = {0,0,0,0,0,0,0,0,0,0,1};
size_t startIdx = 0;
uint8_t errChk = preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx);
if (errChk == 0) return -4; //preamble not found
if (*size != 128) return -5;
return (int)startIdx;
}
// by marshmellow
// FSK Demod then try to locate an AWID ID