ADD: a Noralsy detection, looking for preamble 0xBB0

[proxmark3-svn] / common / lfdemod.c

diff --git a/common/lfdemod.c b/common/lfdemod.c
index 731496026375c87e1ea69fbb546a0893c03299f9..aa3586f6cedd4a0af3677f1f9d4c5e90edcd2605 100644 (file)
--- a/common/lfdemod.c
+++ b/common/lfdemod.c
@@ -708,7 +708,18 @@ int Visa2kDemod_AM(uint8_t *dest, size_t *size) {
        //return start position
        return (int) startIdx;
 }
-
+// by iceman
+// find Noralsy preamble in already demoded data
+int NoralsyDemod_AM(uint8_t *dest, size_t *size) {
+       if (*size < 96*2) return -1; //make sure buffer has data
+       size_t startIdx = 0;
+       uint8_t preamble[] = {1,0,1,1,1,0,1,1,0,0,0,0};
+       uint8_t errChk = preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx);
+       if (errChk == 0) return -2; //preamble not found
+       if (*size != 96) return -3; //wrong demoded size
+       //return start position
+       return (int) startIdx;
+}
 // find presco preamble 0x10D in already demoded data
 int PrescoDemod(uint8_t *dest, size_t *size) {
        if (*size < 128*2) return -1; //make sure buffer has data