We've got a project for a 18F6527 that will be using the Microchip TCP/IP
stack with Microchip's ENC28J60 MAC/PHY.  The customer has previously used
the HiTech C compiler.  We were planning on using that for the TCP/IP stack
and some higher level control and assembler for some lower level stuff
including task management and the associated unnatural acts it will perform
on the stack.

Unforatunately it turns out that HiTech is not compatible with the MPLAB
tools.  They have their own assembler and linker, and it seems there is no
way for the compiler to produce either MPASM source or object files
compatible with MPLINK.  This means the large amount of existing assembler
we were planning on using is inaccessible.

So the question is, is C18 up to the job?  A bunch of years ago C18 was
definitely behind, and I even had Microchip people tell me the HiTech
compiler was better.  This lingering feeling is why the customer got HiTech
in the first place, not knowing about the incompatibilities with
MPASM/MPLINK.  It's been a bunch of years, and Microchip could well have
made C18 better by now.  Does anyone have experience with both?  Anyone
found pitfalls in C18?  Unless there is a good reason not to, we would like
to switch to C18 (the cost of the compiler isn't a big deal, and we get a
big discount we can pass on to the customer anyway).  The TCP/IP stack is
specifically supported on both compilers, so that's not an issue either.


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