I'm new to the rtlinux world...so please go easy.
I working on porting a data system that currently
runs under DOS to linux. What I have are two multiport
serial cards (RocketportPCI/422, 4 port & DigiClassic, 8 port)
I have data from several sources coming in, some at regular
intervals, some at irregular intervals.
I need to be able to timestamp fairly precisely when the
data arrives (within a few ms) I also need to be able to
time an external pulse to the datasystem clock.
Regarding the pulse, I think I can drop it to IRQ 3 and in
rtlinux determine fairly precisely when the pulse occurs.
I'm unsure of how to handle the serial data. Both cards
have regualr linux dirvers and I can ingest data simply through
open(2) and read(2) statements in linux, but as I understand
rtlinux, one cannot use these functions in an rtlinux module.
Also, rt_com is not made to support these specialty cards.
Is the above correct?
Any suggestions on how to handle this?
Thanks
-Jeff
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Dr. Jeffrey R. French - [EMAIL PROTECTED]
Physical Scientist
NOAA/OAR/ARL Field Research Division
1750 Foote Dr.
Idaho Falls, ID 83402
tel: (208) 526-0566 (office)
(208) 526-2549 (fax)
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