DragonBall i.MX (MC9328) vs ColdFire

[Toralf Lund]

As I mentioned earlier, we are in the process of designing a replacement 
for a custom, MC68010  based I/O board. We plan to use a GCC cross 
compiler setup to build the software for the new system (we have used a 
different environment in the past, but I'm porting the existing code 
right now.) We want to reuse as much as possible of the existing 
software on the new plaform. The code is written mostly in K&R C, but 
with some routines  in assembler. There is no real OS on the existing 
unit; the new one may or may not have one.

We are currently trying to select a processor for the new unit. We have 
narrowed down the choise to two models, both from Motorola:

   1. "DragonBall" MC9328 (ARM based)
   2. "ColdFire" MCF5282 (I think, but I'm not 100% sure about the exact
      model number.)

Which one of these would you people out there recommend? Note that both 
meet our requirements to CPU features, so our main concern is the 
porting/development support and general ease-of-use. The lifecycle of 
the unit also needs to be considered, though (it has been suggested to 
us that the ARM based series is likely to last longer than the ColdFire.)
--
- Toralf



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