StreamDevice version 2.2 and higher can run on EPICS 3.13. However, this requires some preparation, because EPICS 3.13 is missing some libraries and header files. Also asynDriver needs to be modified to compile with EPICS 3.13. Due to the limitations of EPICS 3.13, you can build streamDevice only for vxWorks systems.
Of course, you need an installation of EPICS 3.13. I guess you already have that, otherwhise you would want to install StreamDevice on EPICS 3.14. I have tested StreamDevice with EPICS versions 3.13.7 up to 3.13.10 with vxWorks 5.3.1 and 5.5 on a ppc604 processor.
Download my compatibility package, asynDriver version 4-3 or higher, and my configure patches.
Unpack compat-1-0.tgz in the <top> directory of your application build area. (Please refer to the EPICS IOC Software Configuration Management document.)
Change to the compat directory and run make. This installs many EPICS 3.14-style header files and a small library (compatLib).
Unpack the asynDriver package and change to its top directory.
Unpack configure.tgz here.
This will modify files in the configure directory.
Change to the configure directory and edit CONFIG_APP.
COMPAT=... to the <top>
directory where you have installed the compatibility package before.
(This patch might also allow you to compile other 3.14-style drivers for 3.13.
It has absolutely no effect if you use EPICS 3.14.)
Edit RELEASE and comment out
(unless you have the ipac package and somehow made it
compatible to EPICS 3.13).
EPICS_BASE to your EPICS 3.13 installation.
Run make in the configure directory.
Change to ../asyn/devGpib and edit
devGpib.h and devSupportGpib.c.
Change all occurrences of
static gDset to
Go one directory up (to asyn) and run make twice! (The first run will just create Makefile.Vx.) Ignore all compiler warnings.
Do not try to build the test applications. It will not work.
Go to the <top> directory of your application build area.
Edit config/RELEASE and add the variable
Set it to the location of the asynDriver installation.
Also set the
COMPAT variable to the location of the
Run make in the config directory.
Unpack the StreamDevice package in your <top> directory. Change to the newly created StreamDevice directory and run make.
To use StreamDevice, your application must be built with the asyn, stream, and compat libraries and must load asyn.dbd and stream.dbd. Also, as the stream library contains C++ code, the application must be munched. Therefore, include $(TOP)/config/RULES.munch. (Put your application in the same <top> as the StreamDevice installation.)
Include the following lines in your Makefile.Vx:
LDLIBS += $(COMPAT_BIN)/compatLib LDLIBS += $(ASYN_BIN)/asynLib LDLIBS += $(INSTALL_BIN)/streamLib include $(TOP)/config/RULES.munch
Include the following lines in your xxxAppInclude.dbd file to use stream and asyn (you also need a base.dbd):
include "base.dbd" include "stream.dbd" include "asyn.dbd"
You can find an example application in the streamApp subdirectory.
StreamDevice is based on protocol files.
To tell StreamDevice where to search for protocol files,
set the environment variable
STREAM_PROTOCOL_PATH to a
list of directories to search.
Directories are separated by
The default value is
i.e. the current directory.
Also configure the buses (in asynDriver terms: ports) you want to use with StreamDevice. You can give the buses any name you want, like COM1 or socket, but I recommend to use names related to the connected device.
A power supply with serial communication (9600 baud, 8N1) is connected to /dev/ttyS1. The name of the power supply is PS1. Protocol files are either in the current working directory or in the ../protocols directory.
Then the startup script must contain lines like this:
ld < iocCore ld < streamApp.munch dbLoadDatabase ("streamApp.dbd") putenv ("STREAM_PROTOCOL_PATH=.:../protocols") drvAsynSerialPortConfigure ("PS1","/dev/ttyS1") asynSetOption ("PS1", 0, "baud", "9600") asynSetOption ("PS1", 0, "bits", "8") asynSetOption ("PS1", 0, "parity", "none") asynSetOption ("PS1", 0, "stop", "1")
An alternative approach is to skip step 5 (do not build an application)
and load all components explicitely in the startup script.
STREAM_PROTOCOL_PATH variable can also be a vxWorks shell
ld < iocCore ld < compatLib ld < asynLib ld < streamLib.munch dbLoadDatabase ("asyn.dbd") dbLoadDatabase ("stream.dbd") STREAM_PROTOCOL_PATH=".:../protocols" drvAsynSerialPortConfigure ("PS1","/dev/ttyS1") asynSetOption ("PS1", 0, "baud", "9600") asynSetOption ("PS1", 0, "bits", "8") asynSetOption ("PS1", 0, "parity", "none") asynSetOption ("PS1", 0, "stop", "1")
Dirk Zimoch, 2006