From b495cf6b31100666244d8d7a802a272996096435 Mon Sep 17 00:00:00 2001
From: ArdaFu <pengfei.fu@gmail.com>
Date: Tue, 9 Aug 2016 11:42:39 +0800
Subject: [PATCH] [trace] modify readme file, add section enable RT_USING_HOOK.

---
 components/trace/readme.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/trace/readme.md b/components/trace/readme.md
index 632d6ed9d5..1c303d8614 100644
--- a/components/trace/readme.md
+++ b/components/trace/readme.md
@@ -3,7 +3,7 @@
 ### 1. Copy description file
 Copy the '.\SystemView_Src_Vxxx\Description\SYSVIEW_RTThread.txt' to folder '%SystemView_Install_Folder%\Description\'.
 ### 2. Enable trace componment
-Add `RT_USING_TRACE` define in your bsp's rtconfig.h
+Enable `RT_USING_HOOK` and add `RT_USING_TRACE` define in your bsp's rtconfig.h
 ```c
 // <bool name="RT_USING_TRACE" description="Enable trace" default="true" />
 #define RT_USING_TRACE
-- 
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