PC104-DAS16 problems

For the first time in months I need to use the PC104-DAS16jr/16.

The system I'm using has a 2.4.20  kernel and comedi from cvs
dated 20030417. For the moment I'm stuck there.

The code in question has been used for a long time with mimimal
problems and an earlier version of comedi (around Feb 2002).

The application collects 16 channels at 1Khz. It appears to 
work fine witn the current comedi and a PCI-DAS1602. When I 
replaced the DAS1602 with the DAS16 the DAS16 would not collect
data. I changed the setup to use timer mode instead of the IRQ
we used to use. The board now collects data - sort of.

All input channels are grounded. All buffers are set large if
not to maximum. The data coming in jumps at random times from 
0 volts to about 5 volts. Durations are on the order of 1000
to 2500 scans (1 to 2.5 seconds). 

Any Ideas? There is no way to change the comedi/os in the field
(You want to talk the clerk through a kernel build and installation?)

John Conner

Received on 2003-08-29Z14:15:58