> Sure, it's a plan - but is it a good plan?

I would prefer a one-chip solution. Make an estimate of the CPU time
needed (both PID calculations and hardware control), and then decide
what you need. There is a lot of choice even within Microchip's product,
but when you would need a dsPIC level chip I would personally prefer an
ARM instead. I would consider FPGA's only when you need something that
can be done easily in hardware and is realy too CPU-heavy to do on a
CPU.

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 

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