You can find the linux port along with web server for at91rm9200, its available on CD provided with AT91RM9200-DK and EK evaluation kit along with complete information.
Ecos for AT91RM9200 is also available its not yet official.
Do I really need an OS, can I run a web server alone.
All I need is to connect my test set to a PC using TCPIP
and use web pages to configure the test to execute.
I did a project something like that.
check this uIPAVR project: www.laskater.com/projects/uipAVR.htm
it is included the uIP TCP/IP stack and driver for RTL8019AS.
make/buy the hardware (AVR connected to RTL8019AS with ethernet interface), setup a little bit of uIPAVR configuration a little bit, then concentrate on your application.
AA,
You will need:
1. Web Server=> GoAhead (free)
TCP/IP stack => Light Weight IP (free & you might need to port it to your platform)
OS => Any suppoprted by GoAhead(you might need to port it to your platform)
BR,
Amr Ali