4,199
edits
Changes
From IGEP - ISEE Wiki
m
This tutorial is a translation of a French tutorial we wrote on our robotic [http://as.tech.free.fr/wiki/index.php?title=Cr%C3%A9er_un_environnement_de_d%C3%A9veloppement_pour_l%27OMAP3530 web site]. Sorry for the English, feel free to correct mistakes.
[http://wiki.myigep.com/trac/wiki/HowToGetThePokyLinuxDistribution How To Get The Poky Linux Distribution]
[http://wiki.myigep.com/trac/wiki/HowToCrossCompileTheLinuxKernel How To Cross Compile The Linux Kernel]
[http://wiki.myigep.com/trac/wiki/HowToUpgradeTheFactoryFirmware How To Upgrade The Factory Firmware]
no edit summary
This tutorial was written for the [http://wwwlabs.igep-platformisee.combiz/index.php?option=com_content&view=article&id=46&Itemid=55 /IGEP_Technology_devices_revisions ''igep revB''] board, but it is transposable to other ''OMAP3530'' boards (above all for the ''DSP'' part). It is a summary (with some adaptations) of several tutorials found on Internet (see [[How to setup a development environment#References|References]]). All files will be installed in the $HOME directory. __TOC__ {{Message/Obsolete|Link=Visit the [[IGEP SDK Virtual Machine]] for updated information}}
= ''Rootfs'' =
This section describes how to obtain the [http://www.pokylinux.org/ ''Poky''] distribution. This is the distribution shipped with the ''igep'' board; it is based on [http://wikiwww.openembedded.netorg/index.phpwiki/Main_Page ''Open Embedded''].
The first thing to do is set ''Bash'' as default ''sh'' ''shell'':
We will see in section [[How to setup a development environment#Boot_on_the_rootfs_and_the_kernel|''Boot'' on ''rootfs'' and kernel]] how to use it. Yet, ''bitbake'' will download by default the kernel "linux-omap-2.6.28.10-igep0020b-0" which is not the last one provided by ''ISEE''. See section [[How to setup a development environment#Kernel_compilation|Kernel compilation]] to compile another version.
TODO: modify ''recipes'' to download another kernel version
= Cross toolchain for the ''ARM'' =
Two servers are needed. The ''NFS'' (''Network File System'') server allows the target to accede its ''rootfs'' by the network. The ''TFTP'' (''Trivial File Transfer Protocol'') server allows the target to download the kernel over network. Thus, ''UBoot'' needs to be correctly setup to boot on the correct files. To do this, plug a serial cable on the board (''115200n8'') and stop ''UBoot'' by pressing a key. The environment variable of ''UBoot'' we need to change are:
*''serverip'': the server's ''IP'' address, need to be on the ''192.168.254.x'' subred subnet (except if you change the board address, which is not explained here). By default, the server's ''IP'' address is ''192.168.254.10''.
*''distro'': the distribution's name, by default ''poky''.
*''machine'': the card's name, by default ''igep0020b''.
mtd4: 1fa80000 00040000 "File System"
</pre>
Thus, the size is 0x40000=265KB256KB.
==== Copy from ''uboot'' ====
<pre>$HOME/igep/poky/build/tmp-igep0020b/deploy/images/poky-image-base-igep0020b.jffs2
</pre>
And now reboot. In case of errors (such as ''bad crc'' on the ''kernel'' for example), it is necessary to reflash all, see [http://wikilabs.myigepisee.combiz/trac/wikiindex.php/HowToUpgradeTheFactoryFirmware Update_the_PRE-INSTALLED_software_image_to_a_current_release this].
=== Copy kernel and ''rootfs'' in memory card ===
The variables OSINC_GENERIC and OSINC_PLATFORM allow to setup the directories where ''DSPLINK'' will look for ''.h'' files.
=== Librairies Libraries ===
By defualt, ''DSPLINK'' is searching the libraries in the directories:
= References =
[http://www.pokylinux.org/doc/poky-handbook.html Poky Handbook]
[http://wiki.davincidsp.com/index.php/Building_DSPLink Building DSPLink]
[[Category:How to forge|Development environment]]
[[Category:Development tools]]
[[Category:Tutorials]]
