c40's anyone?

[Peregrine McGehee <mcgehee@cfht.hawaii.edu>]

Ian Smith writes:
 > hi,
 > 
 > is anyone using c40's within a vme/68040/vxworks/epics/spox environment?
 > 
 > I'd be interested to hear from anyone who does, re: suppliers, problems etc.
Haven't heard of any EPICS-specific applications but at ICALEPCS'95
there was a poster by S. Kate Feng-Berman et.al of BNL on a
C31 based system which mentioned two reasons _not_ to use SPOX:
"1) the O.S. takes 43K 32-bit words, and 2) its maximum interrupt rate
is 10KHZ. The overhead is due to its attempt to be universal." They
ended up writing their own real-time kernel using Assembly for the
lower layers and C for the upper layers.

The reference:

Application of a TMS320C31 Chip for DSP/Embedded System
F-PO-46
S. Kate Feng, Rolf Olsen, and D. Peter Siddons
National Synchrontron Light Source, Brookhaven National Laboratory
Upton, NY 

Under:
http://adwww.fnal.gov/www/icalepcs/abstracts/icalepcs_abstracts.html

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Peregrine M. McGehee			Canada-France-Hawaii Telescope
Telescope Control Systems Group		P.O. Box 1597, Kamuela, Hawaii