Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Mon, 26 Feb 2007 18:06:00 -0600

J. Frederick Bartlett wrote:

 Recently we have been having problems with IOC timestamp
synchronization on our EPICS network. The timing master is unable to
obtain timing information from our ntp server -- see Geoff Savage's
techtalk note on 15 Feb 2007. While we are finding the solution to that
problem, I would like to make one of our IOC's a timing master and set
its clock to approximately the correct time. Does anyone know of a
method of setting the IOC's clock from the vxWorks shell?

Unfortunately there's no way to do that with the current vxWorks IOC
clock implementation. The code for the vxWorks IOC clock in R3.14 is
found in base/src/libCom/osi/os/vxWorks/iocClock.c - look at the
iocClockInit() and syncNTP() routines for starters. That's also where
you'll see how we find the NTP server to use.
- Andrew
--
The right to be heard does not automatically include
the right to be taken seriously. -- Hubert H. Humphrey

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System