EPICS seq Module
This page is the home of the EPICS seq module, which provides a state notation
compiler and run-time support for implementing state transition diagrams
in an EPICS environment. Versions prior to 2.0.0 can only run under VxWorks.
Versions 2.0.0 or later can run in any environment which implements the
OSI layer (introduced at EPICS R3.14).
This site gives access to the software source code, information on other
modules which are needed to install and run it, and documentation on how
to include and use it in your EPICS applications.
Please email any comments and bug reports to William
Lupton who is responsible for coordinating development and releases.
Wright and Greg White are
also familiar with this module and may be willing to help with some problems.
Where to Find it
You can download the software by anonymous ftp from the W. M. Keck Observatory
ftp site at ftp://ftp.keck.hawaii.edu/pub/epics/seq,
or directly from the links in the table below:
Applications using this software will also need these other modules to
Site Installation and Building
After obtaining a copy of the distribution, it must be installed and built
for use at your site. These steps only need to be performed once for the
Create an installation directory for the module; usually this will be of
the form /path/to/module/seq.
Unpacking the distribution tar file produces a <supporttop>
sub-directory named after the version number, e.g. seq-2.0.0.
Edit the configure/RELEASE file and set the EPICS_BASE
and SEQ variables.
Edit the configure/CONFIG file and set the CROSS_COMPILER_TARGET_ARCHS
and PVXXX variables
Run gnumake in the top level directory and check for any compilation
Please email William Lupton
so he can keep track of which sites are using this software.
To use the installed and built support software in an <ioctop>
application, make the following changes to the application:
Edit the configure/RELEASE file and add the line
Edit the configure/CONFIG file and add the line
In the application source directories, edit Makefile to search
for sequencer libraries. e.g.
PROD_LIBS += seq pv pvCa
seq_DIR = $(SEQ_LIB)
Rebuild the application (including its configure directory) and
use the newly installed module as desired.
The following documentation is available:
This software was originally developed by Andy
Kozubal at Los
Alamos National Laboratory (LANL). It has subsequently been developed
by William Lupton at
the W. M.
Keck Observatory (Keck), with contributions by Greg
White of Stanford Linear Accelerator
Center (SLAC). Versions up to 1.9.2 were part of EPICS base and were
or are being used at most EPICS sites.
Version 1.9.3 has been used at various EPICS sites, including
Version 1.9.4 is the first version to be distributed as an unbundled module.
It is being used at the following EPICS sites:
Version 1.9.5 is a bug-fix version: sequencer deletion from the VxWorks
shell once again works.
Version 2.0.0 is the first version which runs under operating systems other
than VxWorks. It is being used at the following EPICS sites:
William Lupton, 02-May-00