Revision as of 11:42, 2 August 2011

CAEN SY 1527 based High Voltage Control

CAEN SY 1527 Hardware Configuration

CAEN SY x527 EPICS Driver from Canadian Light Source

We sent an e-mail to Ru Igarashi asking him for his EPICS driver for SYx527 CAEN HV chassis. He sent us a tar ball with what he currently had, plus a User's Guide. It is not clear how much effort Ru will be putting into this project. He says that:

• It is not a full implementation of the available controls, lacking crate-wide and board-wide control.
• I haven't had time to eliminate a bug that causes the controls to lose communication with the crate

It is also apparent that some of the functionalities that were implemented need improvements, some of the parameters are hardcoded in the source files. So, if we want to use this driver, we will need to evaluate it, identify the problems, fixed them and add more control features. like board and crate-wide functions.

We took Ru's tar-file and adopted his source code and his EPICS database to our current EPICS scheme. We also used his EDM screens to evaluate the driver for the first time (automatic conversion to BOY OPI failed). The driver connected to our test SY1527 chassis and the EPICS records seemed to work. On driver initialization we get a lot of messages

 CAENHVGetCHParamProp(): Param Not Found (22)

Both the EPICS support and the application adjusted for our framework has been checked in into Hall D SVN repository. The applications, the database configuration with the Makefile will need a lot of modification. The example application was loading just a single board in one DB file using MSI EPICS extension for template substitutions.

CAEN SY 1527 EPICS Driver from Hall B

CAN-bus-based Controls of the FCAL PMT bases

CAN-bus Hardware Configuration

CAN-bus-based EPICS Driver for Hall D