From d3f074341dd8d52ca40510f57d837836a49890c3 Mon Sep 17 00:00:00 2001
From: Meco Man <920369182@qq.com>
Date: Sat, 10 Apr 2021 19:32:13 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A1=A5=E5=85=85AT=E7=BB=84=E4=BB=B6libc?=
 =?UTF-8?q?=E4=BE=9D=E8=B5=96=E7=9A=84=E6=8F=8F=E8=BF=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../application-note/components/at/an0014-at-client.md          | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rt-thread-version/rt-thread-standard/application-note/components/at/an0014-at-client.md b/rt-thread-version/rt-thread-standard/application-note/components/at/an0014-at-client.md
index 028dcc2..bf80d08 100644
--- a/rt-thread-version/rt-thread-standard/application-note/components/at/an0014-at-client.md
+++ b/rt-thread-version/rt-thread-standard/application-note/components/at/an0014-at-client.md
@@ -48,6 +48,8 @@ AT Client 配置选项介绍如下：
 - Enable print RAW format AT command communication data： 配置开启收发数据实时打印功能。
 - The maxinum length of AT Commonds：配置发送 AT 命令的最大数据长度
 
+若RT-Thread版本小于等于4.0.3，并且使用 RT-Studio IDE 或者 GCC 工具链编译时，需要开启 libc 。
+
 配置完成，保存并退出配置选项，输入命令 scons --target=mdk5 生成 MDK 工程；
 
 ### AT Client 添加示例
-- 
Gitee