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

Subject: RE: [Q or Help!] change of scanning period causes IOC crash.
From: [email protected] (Jeff Hill)
To: "'Noboru Yamamoto'" <[email protected]>, "[email protected]" <[email protected]>
Date: Tue, 2 Jun 1998 11:38:47 -0600
Noburo,

As I recall, APS experienced some problems with the National Instruments
MXI hardware timing out during VXI bus transfers when they first set up their 
MXI systems. Ned Arnold ([email protected]) might be able to provide some hints on
setting up MXI bus systems.

Jeff

On Tuesday, June 02, 1998 2:08 AM, Noboru Yamamoto [SMTP:[email protected]] wrote:
> Hi,
>  
>  We are writing a device support routines for a VXI oscillo scope. We use
> MXI-bus connection to cnnect VME bus, where IOC is, and VXI bus , where
> an Osciloscope. When you satrted databse at one scanning period, the device
> support works OK. Some records send commands to setup measurement and a
> waveform record reads trace data from the osciloscope. 
> However, we changes scanning period of the processing, IOC crashes.
> Actually it freeze.
>  
>  Does anybody has a similar problem in developing device support? Which part
> of device support we should look at?
> 
>  Your comments will be grately appricated.
> 


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