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

Subject: Re: Proposed change in asyn - request for comments
From: Michael Davidsaver <mdavidsaver@bnl.gov>
To: tech-talk@aps.anl.gov
Date: Wed, 30 May 2012 12:02:58 -0400
On 5/30/2012 11:23 AM, Eric Norum wrote:
... Also, I don't think that TSE=-2 is the right choice for this setup -- the digitizers don't supply the time stamp. I think that you'd be better off setting the waveform record TSE=<the number of some event in your timing system event receiver associated with the pulse>.

When using TSE=event# do be aware that there are several potential races. One is that the data update from your digitizer driver may arrive and be processed before the updated event timestamp from the EVR.

This should be avoidable in an RTOS if the interrupt and thread priorities for the two drivers (digitizer and EVR) are picked appropriately.


Michael


Replies:
RE: Proposed change in asyn - request for comments Allison, Stephanie
References:
Proposed change in asyn - request for comments Mark Rivers
Re: Proposed change in asyn - request for comments Ernest L. Williams Jr.
Re: Proposed change in asyn - request for comments Eric Norum

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