I am interested to learn firmware programming. I tried to do some research and readings but cant find much. I heard there are routers using Linux as their OS, and their firmware can be reprogramed using c or c++, I am very interested in these kind of technology. I wish I can write programs to control these hardware.

I have very basic linux knowledge and some years of programming skills(in .NET), but I can learn another language in just days. My main problem is that, I have no friends that know even a little in this kind of technology/knowledge, thus I dont know how to start.

Ill be really free during the chinese new year, hope I can get some reading material and learn this skill during the new year, any1 got any experience or tought, please share with me. Thanks for reading.

Thanks for your reply.

TMNET Modem ? Oh, im using aztech modem. Gotta goto tm point to grab one. How much its cost ?

I just downloaded intel c++, is it compatible ? err, nvm, is C language free, where can I get a copy ?

Since i decide to learn it, i think ill spend some money to buy the best router for my study, from the list u gave me(http://wiki.openwrt.org/TableOfHardware), I feel WRTSL54GS is the best/most flexible router, checked the price, around $100-$120. I think I can afford it.

Do U think its a good selection for the price ? Or are there any better selection ? I choose it because it is supported, has usb/comm port, and their specs is pretty nice too(8mb flash/16mb ram). Please commend.