Freescale has a open source (GPL) TCP/IP protocol stack:
Fortunately, Freescale does have an embedded TCP/IP protocol stack, called—not surprisingly—FNET. Importantly, it is a complete, stand-alone implementation. That is, the code is self-contained and does not require an operating system or other libraries in order to function. FNET is written primarily in C, with an emphasis on the code being both modular and portable. Small sections of the stack are written in assembly language to take advantage of processor-specific optimizations. Best of all, FNET is open source (under the dual GNU LGPL/GPLv3 license with the linking exception), which means that you can adapt the source for your particular embedded product design.
Thanks Octal! Via the forum.
Interesting, I would like to know the typica footprint of the bare metal tcp/ip stack on a MCF51CN
I’ve used FNET as a bootloader (for MQX running on an MCF52259) , highly customizable (you can even compile it in a “UDP only” mode), highly recommended =]