Re: EPICS waveform output record

[Luedeke Andreas <Andreas.Luedeke@psi.ch>]

Carl Lionberger wrote:

> Because database puts write the new data into the waveform buffer 
> before the device support read_wf function is called when the record 
> subsequently processes(by process passive), you can just have the 
> read_wf write to the hardware.
>
> Carl

That's what I do in my driver for the digital power supplies, too.

But be aware that you'll not have a DOL link for the waveform record:
as soon as you want to generate your waveform or copy it from some
other record you are back to the gensub record.

It shouldn't be too difficult to duplicate the "waveform" record to a 
"waveout"
and adding the necessary functionality for output records.
Maybe someone already looked into it?

Andreas

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Dr. Andreas Luedeke, SLS Operations Manager, Tel:+41-56-3104002
mailto:Andreas.Luedeke@psi.ch, http://people.web.psi.ch/luedeke