From bdc77a2f821f98befae47eea7e761c38c52e5d72 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Mon, 18 Oct 2010 16:14:07 +0000
Subject: [PATCH] update
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3038 42af7a65-404d-4744-a932-0658087f49c3
---
examples/nsh/README.txt | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/examples/nsh/README.txt b/examples/nsh/README.txt
index f4e1da9aea..73c281558d 100644
--- a/examples/nsh/README.txt
+++ b/examples/nsh/README.txt
@@ -15,6 +15,7 @@ examples/nsh
- NSH Configuration Settings
Command Dependencies on Configuration Settings
NSH-Specific Configuration Settings
+ - Common Problems
Console/NSH Front End
^^^^^^^^^^^^^^^^^^^^^
@@ -987,3 +988,16 @@ NSH-Specific Configuration Settings
* CONFIG_EXAMPLES_NSH_FATMOUNTPT
This is the location where the FAT FS will be mounted. Default
is /tmp.
+
+Common Problems
+^^^^^^^^^^^^^^^
+
+ Problem:
+ Using NSH over serial, the "nsh>" prompt repeats over and over again
+ with no serial input.
+ Usual Cause:
+ NSH over serial needs to use the interrupt driven serial driver
+ (drivers/serial/serial.c) not the polled serial driver (drivers/serial/lowconsole.c).
+ Make sure that the polled console is disabled in the OS configuration
+ file, .config. That file should have CONFIG_DEV_LOWCONSOLE=n for
+ NSH over serial.
--
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