Experimental Physics and
Industrial Control System

Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov> · Mon, 19 Jul 2021 15:35:44 -0700

On 7/19/21 11:47 AM, Josh Fiddler via Tech-talk wrote:
> Greetings everyone, 
> 
> My current task involves implementing support for reading waveforms from a CAEN V1740 <https://www.caen.it/products/v1740/> Digitizer card installed in a CAEN 8008B VME crate <https://www.caen.it/products/vme8008b/> with the V1718 USB2 Bridge. They provide libraries for grabbing data with a CL application, but I want to ask if anyone has experience with this family of devices from CAEN.

Have you investigated OS and/or EPICS support for this V1718 USB2 to VME bridge?

USB communication is inherently message based.  All of the VME bridge drivers
in the EPICS world which I'm aware of assume memory mapped I/O.  So with this
bridge, I would not expect any of the existing EPICS VME drivers and utilities
to be immediately useful.

> I've looked at soft support and the VMErecord jumped out but in hardware support there isn't a module that my current knowledge makes as an obvious choice for this set up.
> 
> High-level description
> The digitizers are taking samples from single-ended inputs when triggered. The USB bridge is the link between the instrument and the IOC host and then onto a channel archiver taking the data to storage and made available to clients for analysis.
> 
> Thanks 
> 
> Josh
> 
> 
> 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System