Thanks for the Lead . This is eventually for the company but currently I am getting into embedded Linux , So not a problem to change over to another board like 9260 as you suggested .I will be carrying out the development on a Linux machine .

I have been using Skyeye for a while and actually ported a RTOS ( FreeRTOS ) on a Samsung ARM7T simulator . But Linux is very different :( .

Thanks for the support . Regards Diptopal On Mon, Dec 8, 2008 at 1:14 PM, Pink Boy dasfoo@yahoo.com wrote:

Diptopal

...

I am using the Skyeye Simulator . I a simulating Atmel at91rm9200dk board, and I am using the ELDK from Denx. The Linux kernel version is 2.6.22.19.

I know nothing about skyeye. I looked at the forum, lots of activity and people that could answer your questions, but is in Chinese. About as helpful to you as to me.

Issues I would have with using shyeye is that it's looks like the primary language of everyone using it is Chinese. That is a problem because what I've found is that the build process for Linux Kernel Kernel, the Tool chains, and root file system is very complex and it's easy to spend days trying to figure out one problem. Being able to have people who know what they are doing help you is critical.

I suspect that the advantage for the Chinese is that they can have engineers work using a simulator, which is cheap. No need for expensive hardware.

...

I need to understand the application compilation process as a part of Linux kernel . How do I write an application and compile it with the kernel to run it .

In a lot of embedded real time operating systems the kernel and the program are compiled together as one executable. So you basically link your program to a library that provides all the services and API you need.

Linux isn't like that, it's a full up operating system with a file system. So you really have three things to solve, building the kernel, the root file system, and your application(s).

So you have a have to build your application, root file system and kernel separately. Not quite true, I believe you can use buildroot to build the tool chain, the kernel, and the root file system and all the tools.

Are you using a linux system to development on, or a windows system? You can use either. Also is this a company project or you trying to learn? Also why the AT91RM9200? It's kind of an orphan. Atmel is using the AT926T core for new development where the 9200 is based on the very much less used AT920T core.

I'd suggest maybe you could try buying development board like the SAM9-L9260. It uses a an AT91SAM9260

from these guys.

http://www.olimex.com/dev/index.html

Mr Foo