(more) long term analog streaming

Message-Id: <20021011002010.282B0102C0_at_newimage.com>
Date: Thu, 10 Oct 2002 20:20:10 -0400 (EDT)
From: rhk_at_newimage.com (Apache User)

I'm still experiencing unusual termination of my analog input and 
output streaming when using a NI MIO-16E-1.

I am starting a continuous acquisition of input data from a single 
channel at 1M/s, and once every 0.5 seconds, I am starting a 0.2 
second analog output stream, which I allow to run out of data. 

Usually within the first minute or two the analog streaming stops 
supplying data.

My system is a dual processor athlon MP 1900+ (1.6Ghz CPU, 233Mhz 
DDR), with 256M of RAM, of which 32M is a ramdisk which has the root 
filesystem. There are very few other processes running.

Right now I am suspecting that the analog input interrupt may be 
occurring on one processor, while an analog output interrupt may 
occur on the other, at which point the code that saves the window 
register during an interrupt won't work.

Does anyone on the list have any experience with dual processor 
systems handling interrupts?

-Ray

Received on 2002-10-10Z23:20:11