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Add configurable application entry point

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5070 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2012-08-30 20:13:50 +00:00
parent 0a5cb6db67
commit 19dbcea073
3 changed files with 21 additions and 14 deletions
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Documentation/NuttShell.html
+4 -6
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@@ -3066,7 +3066,7 @@ Builtin Apps:
<p>
<code><b>apps/examples/hello</code></b>.
The main routine for apps/examples/hello can be found in <code>apps/examples/hello/main.c</code>.
When <code>CONFIG_EXAMPLES_HELLO_BUILTIN</code> is defined, this main routine simplifies to:
The main routine is:
</p>
<ul><pre>
int hello_main(int argc, char *argv[])
@@ -3165,10 +3165,8 @@ STACKSIZE = 2048
</p>
<ul><pre>
.context:
ifeq ($(CONFIG_EXAMPLES_HELLO_BUILTIN),y)
$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
@touch $@
endif
</pre></ul>
</ol>
@@ -3189,7 +3187,7 @@ endif
CONFIG_BUILTIN_APP_START=&lt;application name&gt;
</pre></ul>
<p>
that application will be invoked immediately after system starts instead of the normal, default <code>user_start()</code> entry point.
that application will be invoked immediately after system starts instead of the default <code>CONFIG_USER_ENTRYPOINT</code>() entry point.
Note that <code>&lt;application name&gt;</code> must be provided just as it would have been on the NSH command line.
For example, <code>hello</code> would result in <code>hello_main()</code> being started at power-up.
</p>
@@ -3276,8 +3274,8 @@ CONFIGURED_APPS += examples/hello
<p>
You replace the sample code at <code>apps/examples/nsh/nsh_main.c</code> with whatever start-up logic that you want.
NSH is a library at <code>apps/nshlib</code>.
<code>apps.examplex/nsh</code> is just a tiny, example start-up function (<code>user_start()</code>) that that runs immediately and illustrates how to start NSH
If you want something else to run immediately then you can write your write your own custom <code>user_start()</code> function and then start other tasks from your custom <code>user_start()</code>.
<code>apps.examplex/nsh</code> is just a tiny, example start-up function (<code>CONFIG_USER_ENTRYPOINT</code>()) that that runs immediately and illustrates how to start NSH
If you want something else to run immediately then you can write your write your own custom <code>CONFIG_USER_ENTRYPOINT</code>() function and then start other tasks from your custom <code>CONFIG_USER_ENTRYPOINT</code>().
</p>
<li>
<p>