From 207fc33a4252560197931244b1e888d5cc3994c7 Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Thu, 15 Dec 2016 15:50:12 +0100
Subject: [PATCH 1/1] ADD:  a Noralsy detection,  looking for preamble 0xBB0

---
 common/lfdemod.c | 13 ++++++++++++-
 common/lfdemod.h |  1 +
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/common/lfdemod.c b/common/lfdemod.c
index 73149602..aa3586f6 100644
--- 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
diff --git a/common/lfdemod.h b/common/lfdemod.h
index b4ff453e..11634d00 100644
--- a/common/lfdemod.h
+++ b/common/lfdemod.h
@@ -59,4 +59,5 @@ int PrescoDemod(uint8_t *dest, size_t *size);
 int NedapDemod(uint8_t *dest, size_t *size);
 int JablotronDemod(uint8_t *dest, size_t *size);
 int Visa2kDemod_AM(uint8_t *dest, size_t *size);
+int NoralsyDemod_AM(uint8_t *dest, size_t *size);
 #endif
-- 
2.39.2