Experimental Physics and
Industrial Control System

Eric Norum <[email protected]> · Fri, 15 Jun 2007 08:51:00 -0500

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

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System