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added PSK2 to lf simpsk

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testing still ongoing.
This commit is contained in:
marshmellow42 2015-02-21 22:54:52 -05:00
commit 3bc66a96fe
3 changed files with 28 additions and 2 deletions
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17
common/lfdemod.c
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@ -1068,6 +1068,23 @@ void psk1TOpsk2(uint8_t *BitStream, size_t size)
return;
}
// by marshmellow
// convert psk2 demod to psk1 demod
// from only transition waves are 1s to phase shifts change bit
void psk2TOpsk1(uint8_t *BitStream, size_t size)
{
size_t i;
uint8_t phase=BitStream[0];
//uint8_t lastBit=BitStream[0];
for (i=1; i<size; i++){
if (phase!=BitStream[i]){
phase ^=1;
}
BitStream[i]=phase;
}
return;
}
// redesigned by marshmellow adjusted from existing decode functions
// indala id decoding - only tested on 26 bit tags, but attempted to make it work for more
int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert)