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<== Date ==> <== Thread ==>

Subject: [Summary] CAMAC Serial Driver
From: yamamoto@kekvax.kek.jp (Noboru Yamamoto)
To: tech-talk@aps.anl.gov
Date: Thu, 11 Jul 1996 09:15:47 +0900
Dear EPICS-ians, 

I have asked a quesion about CAMAC serial driver used with EPICS. I got
several responces from 

watson@cebaf.gov
rivers@cars3.uchicago.edu
bjorklund@lanl.gov
tang@cebaf.gov

Thanks again for them.

 In summary, 

Hytec2992 SERIAL highway driver is only one used in EPICS.
If you don't limit at SERIAL highway driver, 
Kinetic Systems 2917 K-Bus paralel interface board is also
used with EPICS.

Driver routines are avilable for EPICS collaborators.

>At one time, CEBAF also used the Kinetic Systems 2917 for
>its control system. The driver was written by Chip Watson at CEBAF.
> 
>You can get the source code from ftp site at CEBAF:
> 
>   ftp.cebaf.gov:/pub/epics/camac/ks2917
> 
> 
>Or the lanl version at
> 
>   thoth.atdiv.lanl.gov:/pub/epics/camac.tar
>--
>=============================================================
>Johnny Tang     Voice: (804)249-7239  E-Mail: tang@cebaf.gov
>Continuous Electron Beam Accelerator Facility
>12000 Jefferson Avenue, MS 85A
>Newport News, Virginia 23606
>=============================================================

According to  Mr. Bjorkund, EPICS CAMAC device support which uses any of
the "Implementation-Dependant" features of the ESONE standard supplied by
camacLib.c. And It should be possible to use CAMAC dirver board if there is
a ESONE compliant dirver routine.

>I don't think there is anything in the CEBAF/LANL/Chicago EPICS CAMAC device
>support which uses any of the "Implementation-Dependant" features of the ESONE
>standard.  The exception to this is the card-specific lam-grader module I
>currently include in the distribution.
> 
>It therefore should be possible to load (for example) a CERN Camac library and
>run EPICS device support on top of it.
> 
>This, of course, is an as yet unproven assertion.
> 
>==============================================================================
>Eric Bjorklund				Voice: 505-667-6031
>Los Alamos National Laboratory		Email: bjorklund@lanl.gov
>AOT-6 MS H820
>PO Box 1663
>Los Alamos, NM 87545
>==============================================================================

I used both CEBAF version and LANL version of camacLib with EPICS R3.12.2
and found both driver work fine.

In the test I needed to modify the definition of the structure ksc2917Regs
in ksc2917.h. I added 144bytes long pad at the 
end of the structure and made the size of ksc2917Regs 256bytes long.
Without this modification, IOC cannot handle multiple KSC2917 boards 
in a same VME subrack.

====================================================================
typedef struct /* ksc2917_registers */ {
  uint16_t volatile  cser;      /* 00 -- Control Status/Error Register  */
  uint16_t volatile  unused02;  /* 02                                   */
  uint16_t volatile  docr;      /* 04 -- Device/Operation Control Register*/
  uint16_t volatile  sccr;      /* 06 -- Sequence/Channel Control Register*/
.....
.....
  uint16_t volatile  dlr;       /* 6A -- Data Low Register              */
  uint16_t volatile  dhr;       /* 6C -- Data High Register             */
  uint16_t volatile  csr;       /* 6E -- Control Status Register        */
  uint16_t volatile  unused70[72]; /*   Padding    */
} ksc2917Regs;

====================================================================

Thats all for today.

Noboru Yamamoto
KEKB Accelerator Control Group
KEK, JAPAN
Noboru Yamamoto
KEKB accelerator Control Group
KEK, Accelerator Dept.
JAPAN


Replies:
Re: [Summary] CAMAC Serial Driver watson

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