tutorial

uoevngol.m.anrspaHow to create EPICS device support for a simple serial or GPIBdeviceW. Eric NorumOctober 22, 20071 IntroductionThis tutorial provides step-by-step instructions on how to create EPICS support for a simple serial or GPIB (IEEE-488)device. The steps are presented in a way that should make it possible to apply them in cookbook fashion to createsupport for other devices. For comprehensive description of all the details of the I/O system used here, refer to theasynDriver and devGpib documentation.This document isn’t for the absolute newcomer though. You must have EPICS installed on a system somewhere andknow how to build and run the example application. In particular you must have the following installed:• EPICS R3.14.6 or higher.• EPICS modules/soft/asyn version 4.0 or higher.Serial and GPIB devices can now be treated in much the same way. The EPICS ’asyn’ driver devGpib module canuse the low-level drivers which communicate with serial devices connected to ports on the IOC or to Ethernet/Serialconverters or with GPIB devices connected to local I/O cards or to Ethernet/GPIB converters.I based this tutorial on the device support I wrote for a CVI Laser Corporation AB300 filter wheel. You’re almostcertainly interested in controlling some other device so you won’t be able to use the information directly. I chosethe AB300 as the basis for this tutorial since the AB300 has a very limited command set, which keeps this documentsmall, ...