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This How-To is meant to be a starting point for people to learn to use the RS-485 port on IGEP devices as quickly and easily as possible. We use [http://labs.isee.biz/index.php/IGEP_firmware_Yocto IGEP YOCTO Firmware] and RS485 example file which describe how to setup and write data on the RS-485 port.
= Add RS-485 support =
== Flash memory==
Boot IGEP with a MicroSD card.
<pre>mkdir /tmp/temp
mount -t jffs2 /dev/mtdblock1 /tmp/temp </pre>
Now, mtdblock1 partition is mounted at /tmp/temp directory. Modify igep.ini located in: /tmp/temp/igep.ini
*Add RS-485 support:
<pre>board.ei485=yes</pre>
Save changes, power down IGEP, unplug MicroSD card and power up your board.
== Micro SD==
Plug SD card in your computer, boot partition should be appear. Modify igep.ini located in: /media/boot/igep.ini
*Add RS-485 support:
<pre>board.ei485=yes</pre>
Save changes, plug SD card in IGEP and power up your board.
= IGEPv2 =
