Blue Chip Technology + MagnumX?

Has anyone got any experience of Blue Chip Technology (http://www.bluechiptechnology.co.uk/) and especially their MagnumX single board computers? (http://www.bluechiptechnology.co.uk/single_board_computer.php?sub_group_id=2)

We've been investigating the ColdFire MCF5475EVB for some quite simple 5 channel GPIO capture - but at quite high data rates. We've got the 266MHz ColdFire processor to do what we want but it just isn't quite fast enough - it's missing some of the state transitions on the channels. We're sampling at around 2 to 2.2MHz and we need more like 3.3MHz.

We were wondering whether a faster (2x?) processor would be more likely to do the job. The 733MHz MagnumX board sounds like it might do this, and it has 16 channels of GPIO (we only need 5 inputs at present, unlikely to increase significantly). I'm aware it's moving from the ColdFire/M68K processor to an x86 processor, but unless there's a major difference in per cycle processing, that's not a problem.

Our app is quite simple - loop until a counter expires, each iteration store 1 byte pin state register and 32 bit counter value. We currently can sample up to 60MB of data.

So - any experience of the MagnumX would be good - especially with respect to the need for an OS (currently no OS, so no overhead on the ColdFire - just simple ELF application). DOS would not be suitable as we'd need to (easily) be able to access 60MB+ of RAM.

Any thoughts?

Thanks

David
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