CLS ?

1
CLS ?

• 2.9 Gev synchrotron light source
• 3rd generation machine - insertion devices
• main storage ring is 170 m. circumference
• 6 IR and X-ray beam lines, 4 6 more under
  development.
• located in Saskatoon, Saskatchewan
• tony_at_cls.usask.ca

2
Time line

• Jan 2001 occupy new building
• April 2001 commission linac
• 2001 install commission booster
• 2002 install commission storage ring
• 2003 install beam lines
• Dec 2003 6 beam lines operational 4 or
  more in progress
• control system will be gradually deployed for
  each stage

3
EPICS 3.14

• EPICS 3.14 running on RTEMS
• conversion from EPICS 3.13 and
  vxWorks straight forward.
• target independent code
• drivers for modbus / ethernet FieldPoint CL
  S stepping motors GPIB via HP E2050
  LAN/GPIB magnet power supplies
• EPICS 3.14 seems stable no crashes
• EPICS 3.14 performance on RTEMS is gt 95 of
  3.13 on vxWorks

4
RTEMS

• Real Time Executive for Multiprocessor Systems
• Developed for U.S. Army Missile Command
• Now Open-Source (FreeBSD license terms)
• Commercial support available ()
• Runs on lots of platforms, including
• MVME162, MVME167, MC68360
• Power PC 27xx VME
• Intel x86

5
RTEMS Features

• Features comparable to vxWorks
• Multi-tasking Executive
• Strict priority scheduling (preemptive)
• 255 priorities
• Optional time-slicing between tasks at same
  priority
• Semaphores, Message Queues, Events
• Timers, Rate-monotonic Scheduler

6
RTEMS Features

• ANSI C/C library
• FreeBSD network stack (ported by SAL)
• Thread-safe RPC/XDR routines
• POSIX compatibility option
• Can not dynamically link libraries
• No remote console access (no telnet)

7
CLS Embedded Controller
Ethernet
BDM interface
Motorola MC68360
console
serial port 1 of 4

• use more than 200 IOCs
• inexpensive

8
Power Supply controller
to data bus can address different power supply
channels
state inputs
Embedded controller with 68360