From 4ef6bd673fc9db197cc673fd0d159afa598787cb Mon Sep 17 00:00:00 2001
From: jasonshort <jasonshort@f9c3cf11-9bcb-44bc-f272-b75c42450872>
Date: Mon, 29 Nov 2010 01:44:40 +0000
Subject: [PATCH] added trim save

git-svn-id: https://arducopter.googlecode.com/svn/trunk@980 f9c3cf11-9bcb-44bc-f272-b75c42450872
---
 libraries/RC_Channel/RC_Channel.cpp | 11 ++++++++++-
 libraries/RC_Channel/RC_Channel.h   |  3 ++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/libraries/RC_Channel/RC_Channel.cpp b/libraries/RC_Channel/RC_Channel.cpp
index 49f8c59f017..ea11ff05a4c 100644
--- a/libraries/RC_Channel/RC_Channel.cpp
+++ b/libraries/RC_Channel/RC_Channel.cpp
@@ -98,6 +98,8 @@ RC_Channel::calc_pwm(void)
 	radio_out = pwm_out + radio_min;
 }
 
+// ------------------------------------------
+
 void
 RC_Channel::load_eeprom(void)
 {
@@ -109,11 +111,18 @@ RC_Channel::load_eeprom(void)
 void
 RC_Channel::save_eeprom(void)
 {
-	eeprom_write_word((uint16_t *)	_address, 		radio_min);
+	eeprom_write_word((uint16_t *)	_address, 			radio_min);
 	eeprom_write_word((uint16_t *)	(_address + 2), 	radio_max);
 	eeprom_write_word((uint16_t *)	(_address + 4), 	radio_trim);
 }
 
+// ------------------------------------------
+void
+RC_Channel::save_trim(void)
+{
+	eeprom_write_word((uint16_t *)	(_address + 4), 	radio_trim);
+}
+
 // ------------------------------------------
 
 void
diff --git a/libraries/RC_Channel/RC_Channel.h b/libraries/RC_Channel/RC_Channel.h
index a2c41b9b8c2..07226207726 100644
--- a/libraries/RC_Channel/RC_Channel.h
+++ b/libraries/RC_Channel/RC_Channel.h
@@ -38,6 +38,7 @@ class RC_Channel{
 	// startup
 	void 		load_eeprom(void);
 	void 		save_eeprom(void);		
+	void 		save_trim(void);		
 	void		set_filter(bool filter);
 
 	// setup the control preferences
@@ -58,7 +59,7 @@ class RC_Channel{
 	
 	// value generated from PWM
 	int16_t 	control_in;
-	int8_t 		dead_zone; // used to keep noise down and create a dead zone.
+	int16_t 	dead_zone; // used to keep noise down and create a dead zone.
 	
 	int			control_mix(float value);