Experimental Physics and
Industrial Control System

[email protected] · Fri, 19 Mar 1999 08:26:26 -0600 (CST)

Dear colleague,
I had put two VME CPUs in one crate, one 147 and one 167. I am running a
VME canbus program inthe 167 and some Wavetek RS232 connections program in
147. Each one works perfectly when they are alone.
But whenI put them together, aftre the canbus program finish loading, the
Wavetek program will be interruptted by the message like this:
logTask: 144 log messages lost.
interrupt: drvAb: Interrupt but fl_lock not locked
logTask: 1 log messages lost.
interrupt: drvAb: Interrupt but fl_lock not locked
logTask: 44 log messages lost.
interrupt: drvAb: Interrupt but fl_lock not locked
logTask: 105 log messages lost.

Ihave played alot with switching around the Master and slave jumper, the
sysIntEnable function bu t no luck yet.
Somehow, Ihave a feeling that the canbus program is sending out the
interrupt messages to allthe VME crates that are in the dessy chain to
read all the information like temperature, fan speed and control the
power, etc.But the CPU that is sending out these messages isn't affected
by these messages. I don't know if my understanding is in the wrong way or
not.
Hope someone can help me in this case.

Best,
Jie Lin

Creigton University Office,
Building 902B, POBox 5000,
BNL,
Upton, NY 11973-5000

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System