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

Subject: Pcas is a Python binding to portable channel access server
From: "Wang Xiaoqiang" <Xiaoqiang.Wang@psi.ch>
To: <tech-talk@aps.anl.gov>
Cc: Panepucci Ezequiel <ezequiel.panepucci@psi.ch>, Controls <Controls@psi.ch>
Date: Fri, 8 Jul 2011 15:55:25 +0200

Hi,

Although I have given two slides mentioning it during EPICS meeting at
ITER, it had not been brought further to public afterwards and it had
even not a proper module name. 

Work has since been done to consolidate the API between the server tool
and driver implementation. It is now a mimic/shanzhai[1] of
asynPortDriver's concept[2].
It separates the actual working logic from channel access handling.
Giving Python's dynamic typing and rich extensions, this becomes more
simple than writing a C++ asyn port driver. One example is the Python
port of testAsynPortDriver[2] with ~100 lines of codes including
comments, blank lines and database definition.
http://code.google.com/p/pcas/wiki/UserDocuments#Example_3:_A_Simulated_
Oscilloscope

Now the source is hosted at http://pcas.googlecode.com. Three examples
are given to show its capabilty,
http://code.google.com/p/pcas/wiki/UserDocuments. The issue tracker is
at http://code.google.com/p/pcas/issues/list.

[1] http://en.wikipedia.org/wiki/Shanzhai
[2]
http://www.aps.anl.gov/epics/modules/soft/asyn/R4-12/asynPortDriver.html


Xiaoqiang Wang


Replies:
Re: Pcas is a Python binding to portable channel access server Andrew Johnson

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