EPICS Seq Module
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Module Owner:
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William Lupton
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.
Rozelle
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:
Required Modules
Applications using this software will also need these other modules to
be installed:
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
site (unless versions of the module running under different releases of
EPICS and/or the other required modules are needed).
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Create an installation directory for the module; usually this will be of
the form /path/to/module/seq.
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Unpacking the distribution tar file produces a <supporttop>
sub-directory named after the version number, e.g. seq-1.9.4.
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Edit the config/RELEASE file and set the paths to your installation
of EPICS.
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Run gnumake in the top level directory and check for any compilation
errors.
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Please email William Lupton
so he can keep track of which sites are using this software.
Application Installation
To use the installed and built support software in an <ioctop>
application, make the following changes to the application:
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Ensure that it is not using the version of snc from EPICS base
(EPICS base does not contain a file called libSeq so this is not
a problem)
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Edit the config/RELEASE file and add the line
SEQ=/path/to/module/seq/version
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Edit the config/CONFIG_APP file and add the lines
ifdef SEQ
USR_INCLUDES += -I$(SEQ)/include
SEQ_BIN = $(SEQ)/bin/$(T_A)
endif
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In the application source directory if the EPICS base object files are
linked together, edit Makefile.Vx and add
ifdef SEQ
LIBOJBS += $(SEQ_BIN)/seqLib
endif
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Pending a better way of doing this, arrange to use the correct version
of snc (state notation compiler) by editing config/CONFIG and
adding
ifdef SEQ
SNC = $(SEQ)/bin/$(HOST_ARCH)/snc
endif
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Rebuild the application and use the newly installed module as desired.
Documentation
The following documentation is available:
In Use
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 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, 13-Oct-99