github/proxmark3
1
0
Fork 0
mirror of https://github.com/Proxmark/proxmark3.git synced 2025-08-20 13:23:25 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

Testing animal tags

Browse source
This commit is contained in:
marshmellow42 2015-06-03 16:52:20 -04:00
commit 04bb05670d
3 changed files with 107 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

27
common/lfdemod.c
View file

@ -537,6 +537,18 @@ uint32_t bytebits_to_byte(uint8_t* src, size_t numbits)
return num;
}
//least significant bit first
uint32_t bytebits_to_byteLSBF(uint8_t* src, size_t numbits)
{
uint32_t num = 0;
for(int i = 0 ; i < numbits ; i++)
{
num = (num << 1) | (*src);
src++;
}
return num;
}
int IOdemodFSK(uint8_t *dest, size_t size)
{
if (justNoise(dest, size)) return -1;
@ -590,6 +602,21 @@ size_t removeParity(uint8_t *BitStream, size_t startIdx, uint8_t pLen, uint8_t p
return bitCnt;
}
// Ask/Biphase Demod then try to locate an ISO 11784/85 ID
// BitStream must contain previously askrawdemod and biphasedemoded data
int ISO11784demodBI(uint8_t *dest, size_t *size)
{
//make sure buffer has enough data
if (*size < 128) return -1;
size_t startIdx = 0;
uint8_t preamble[] = {0,0,0,0,0,0,0,0,0,0,1};
uint8_t errChk = preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx);
if (errChk == 0) return -2; //preamble not found
return (int)startIdx;
}
// by marshmellow
// FSK Demod then try to locate an AWID ID
int AWIDdemodFSK(uint8_t *dest, size_t *size)