Tekst źródłowy strony RBMTX-Lite OpenWrt SDK Exmaple


__TOC__
==Prerequisites==

You will need:

<ul>
    <li>A PC, laptop or virtual machine running Linux OS (preferably Ubuntu distro)</li>
    <li>An SDK intended for your router, which can be downloaded here: <b>[[Software Development Kit]]</b></li>
</ul>

==Preparation==
#Create directory, where the SDK will be extrated e.g RBMTX_SDK.
#Open terminal in created folder and unpack SDK.
 tar -xf ~/Downloads/rbmtx3-owrt-sdk-....Linux-x86_64.tar.xz
#<li value="3"> Go to the SDK directory.
 cd rbmtx3-owrt-sdk-22.10.14-rbmtx3_gcc-8.4.0_musl_eabi.Linux-x86_64/
#<li value="4"> Update the feeds.
 ./scripts/feeds update -a


==Compiling a custom package==

In this example we are going to show you how to generate OpenWrt package base on the simple Modbus client and server application.
<ol>
<li> To create custom package, when you are in the SDK directory go to the package directory.
<pre>cd package</pre></li>
<li>Make new directory where the package Makefile should be placed.
 <pre> mkdir modbus_server
 cd modbus_server</pre></li>

<li>
Create the Makfile file to build your custom package. Exmaple Makefile shown below.
* It is important to change all '''modbus_server''' string with your package name.
* In the '''SOURCE_DIR''' section add path to your package sources.
* If you use external library it is important to complete the dependency sections e.g:
 
<pre>TARGET_LDFLAGS=-lmodbus
DEPENDS:= +libmodbus
PKG_BUILD_DEPENDS+= libs/libmodbus</pre>
 
[[Plik:MakefileNew.png|2000x1000px|lewo]]
</li>

<li value="4"> After Makefile file perpartion. It is important to install dependency library. In this example it is libmodbus library. To install library run: 
<pre>/scripts/feeds install libmodbus</pre></li>