Experimental Physics and Industrial Control System
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May I also suggest that you have a look at the ColdFire uCDIMM cards
that we are using here at the APS and Till Straumann is using at
SLAC. These are full-capable EPICS IOCs and are well supported by
both RTEMS and uClinux.
64 MHz Motorola ColdFire MCF5282
4 MB of on-board flash (in addition to the 0.5 MB on the MCF5282)
16 MB of DRAM
10/100 BaseT Ethernet
Three serial ports
I2C, CAN, QSPI
A24, D16 bus(with 2 chip-selects)
Here are a couple of references:
http://www.aps.anl.gov/epics/base/RTEMS/FPGA_IOC.pdf
http://www-ssrl.slac.stanford.edu/lcls/epics/talks/thurpm/
norumembeddedepics.ppt
On Jun 14, 2007, at 9:48 AM, Bernhard Kuner wrote:
Dear Mister du Toit
The bad news is that most of this hardware is custom made... and is
fairly old. This includes just about everything from powersupply
controllers to vacuum controllers to beam monitors ect ect.
The one advantage is that most of this runs in crates on a bus we
call
SABUS (once again custom made) in basic form it is a parallel
communication bus with data and address lines and some control
signals.
This is also a system that connects several of these crates together.
Then you have a differential system that has an 8-bit data bus and
about
4 control signals.
This bus seems to be something like the ISA bus. I made here at
BESSY somthing similar 13 years ago, a little 8-bit addr, 8bit data
+ some control bus and adapted this easily to an ISA bus. So an
idea could be to use PC104 with ISA bus, create a adapter to your
bus and than there is just the work to create an driver for the bus
access and device support to the records. This PC104 boards are
shurely more cheap as a self developed one, and there is not much
work on the software side, I think.
best regards
Bernhard Kuner
--
Eric Norum <[email protected]>
Advanced Photon Source
Argonne National Laboratory
(630) 252-4793
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