fix em410x XL bug

and make it rule out more false positives.

diff --git a/common/lfdemod.c b/common/lfdemod.c
index 125112088e09fc57b44768e0743bcb2b67a0c356..fee55c926ed87c412fbb9b4e95abf084eeeb11e3 100644 (file)
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -218,8 +218,8 @@ uint8_t Em410xDecode(uint8_t *BitStream, size_t *size, size_t *startIdx, uint32_
        uint8_t FmtLen = 10; // sets of 4 bits = end data 
        *startIdx = 0;
        errChk = preambleSearch(BitStream, preamble, sizeof(preamble), size, startIdx);
        uint8_t FmtLen = 10; // sets of 4 bits = end data 
        *startIdx = 0;
        errChk = preambleSearch(BitStream, preamble, sizeof(preamble), size, startIdx);

-       if (errChk == 0 || *size < 64) return 0;
-       if (*size == 110) FmtLen = 22; // 22 sets of 4 bits
+       if ( errChk == 0 || (*size != 64 && *size != 128) ) return 0;
+       if (*size == 128) FmtLen = 22; // 22 sets of 4 bits

 
        //skip last 4bit parity row for simplicity
        *size = removeParity(BitStream, *startIdx + sizeof(preamble), 5, 0, FmtLen * 5);
 
        //skip last 4bit parity row for simplicity
        *size = removeParity(BitStream, *startIdx + sizeof(preamble), 5, 0, FmtLen * 5);