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FECC/SAIOC/RTEMS. Making Lemonade. “Slow” Code (in PC) Ported iRMX code By Bob Sass and Tony As little hand work as possible EPICS OSI layer Dual NIC Regular Feedback/Pnet Coexists with SAIOC Uses SAIOC core functions Receives PNET via Ethernet

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Fecc saioc rtems

FECC/SAIOC/RTEMS

Making Lemonade


Fecc saioc rtems

“Slow” Code (in PC)

Ported iRMX code

By Bob Sass and Tony

As little hand work as possible

EPICS OSI layer

Dual NIC

Regular

Feedback/Pnet

Coexists with SAIOC

Uses SAIOC core functions

Receives PNET via Ethernet

Point-to-Point fiber serial connection to FECC

Fast (new HW)

PPC embedded in FPGA fabric

IP only (no TCP/UDP)

Fast (NMI) code

Does BPM data

Receives PNET via fast link

Proprietary RTS

No debugging capability

Drives several busses

SLAC CAMAC

Standard CAMAC

Bitbus

FECC


Fecc saioc rtems

FECC

  • Work by Sass, Gromme, Siskind

  • Target date June 2006

  • PC side has PCIL serial link driver

  • Driver useable by ported iRMX and EPICS

  • Feedback to run in PC

  • Feedback to use UDP instead of KISNET

  • Replaces multibus & micro


Current micro setup

Current Micro Setup

SLCNET to VMS

PNET broadcast

Multibus crate

With Multibus

Format Intel CPU

CAMAC Branch Driver

Camac

Camac


Fecc saioc rtems

FECC Setup

Ethernet to VMS

PNET broadcast (Ethernet)

PC running

in MCC

Point-to-point fiber serial link

FECC Running

Camac control

And BPM acq.

Camac

Camac

Standard

Camac

Bitbus


Software division

Software Division

RTEMS or Linux PC

iRMX Multibus Micro

“Slow”

Message

Database

Magnet

Stat

Anlg

The ethernet PNET broadcast means there are hard realtime requirements

“Slow”

Message

Database

Magnet

Stat

Anlg

FECC Driver

+ PCI card

Camac commands

PNET, BPM

Fast

BPM, Timing

(360 Hz int)

Fast

BPM, Timing

(360 Hz int)

FECC


Slc aware ioc saioc

SLC-Aware IOC (SAIOC)

  • EPICS OSI as basis

  • SLC part looks like micro

  • EPICS part does I/O

  • EPICS part is separable from SLC part

  • Only BSAC (BPM) and Magnet support

  • All analog/digital in EPICS only

  • Used as basis for FECC iRMX port


Slc aware ioc

SLC-Aware IOC

Ethernet communication to VMS

Modified SLC-style

Messaging

Database

Task dispatching

Pure EPICS

Implementation

Communicating

With rest of VME

Crate and hardware

This code uses the EPICS OSI implementation. It is currently

developed on a linux platform and run on RTEMS in a VME

crate.

It is designed such that VMS sees this aggregate as a micro

but that it can run as an EPICS-only implementation later


Fecc saioc rtems

SLC-Aware IOC with FECC

This runs in

A PC, just like

The pure FECC

Idea. System is

Linux or RTEMS.

Ethernet communication to VMS

Modified SLC-style

Messaging

Database

Task dispatching

Pure EPICS

Implementation

Communicating

With Hardware

By sharing the

FECC driver with

iRMX

Add EPICS record support for camac addressing via FECC

E

Port of rest of iRMX

Code.

Camac branch

FECC Driver


Fecc pc to epics migration

FECC-PC to EPICS migration

  • One driver for FECC works for both EPICS and ported iRMX code

  • FECC-PC is a modified SAIOC

  • Only fast part remains BPMs

  • Treat FECC as CAMAC fieldbus for EPICS

  • Add EPICS support for FECC

    • Move Analog/digital/etc. to SAIOC style

    • Or just move analogs/digitals/etc to EPICS


Where does this lead

Where does this lead?

  • EPICS can slowly take over all functionality

  • FECC becomes CAMAC fieldbus only

  • PCs running RTEMS allow slow migration to EPICS

  • Application migration is totally separate


Fecc mpg

FECC MPG

  • Old MPG uses PNET, no Ethernet capability

  • FECC MPG will broadcast over Ethernet

    • MPS Supervisor is Ethernet; has shared memory with old MPG

    • SAIOC PNET card receives PNET broadcast; could rebroadcast on Ethernet

    • The BIC talks to the MPG via shared memory too

    • The Bitbus support capability of the FECC can be (trivially) modified to support PNET.


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