From 029e2b098fefd57f05bb115a8e5c1f4380bd7cc4 Mon Sep 17 00:00:00 2001
From: rusEfi <russianefi@gmail.com>
Date: Sun, 31 Dec 2017 20:13:20 -0500
Subject: [PATCH] docs

---
 firmware/controllers/algo/rusefi_enums.h                 | 8 ++++++++
 firmware/controllers/trigger/decoders/trigger_nissan.cpp | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/firmware/controllers/algo/rusefi_enums.h b/firmware/controllers/algo/rusefi_enums.h
index a9a3f36d03..1a43310f12 100644
--- a/firmware/controllers/algo/rusefi_enums.h
+++ b/firmware/controllers/algo/rusefi_enums.h
@@ -218,6 +218,11 @@ typedef enum {
 
 	TT_36_2_2_2 = 23,
 
+	/**
+	 * only the 4 tooth signal, without the 360 signal
+	 * 8,2,2,2 Nissan pattern
+	 * See also TT_NISSAN_SR20VE_360
+	 */
 	TT_NISSAN_SR20VE = 24,
 
 	TT_2JZ_3_34 = 25,
@@ -255,6 +260,9 @@ typedef enum {
 
 	TT_JEEP_18_2_2_2 = 37,
 
+	/*
+	 * See also TT_NISSAN_SR20VE
+	 */
 	TT_NISSAN_SR20VE_360 = 38,
 
 	TT_UNUSED = 39, // this is used if we want to iterate over all trigger types
diff --git a/firmware/controllers/trigger/decoders/trigger_nissan.cpp b/firmware/controllers/trigger/decoders/trigger_nissan.cpp
index 2a34523f5c..3d3733d85e 100644
--- a/firmware/controllers/trigger/decoders/trigger_nissan.cpp
+++ b/firmware/controllers/trigger/decoders/trigger_nissan.cpp
@@ -1,6 +1,8 @@
 /**
  * @file	trigger_nissan.cpp
  *
+ * https://rusefi.com/forum/viewtopic.php?f=3&t=1194&start=150#p27784
+ *
  * @date Sep 19, 2015
  * @author Andrey Belomutskiy, (c) 2012-2017
  */
@@ -8,6 +10,9 @@
 #include "trigger_nissan.h"
 #include "trigger_universal.h"
 
+/**
+ * 8,2,2,2 Nissan pattern
+ */
 static void initializeNissanSR20VE_4_optional_360(TriggerShape *s, bool with2nd DECLARE_ENGINE_PARAMETER_SUFFIX) {
 	s->initialize(FOUR_STROKE_CAM_SENSOR, with2nd);
 	s->isSynchronizationNeeded = true;