Xref: utzoo misc.forsale.computers:6459 comp.sys.ibm.pc.hardware:6245
Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!think.com!mintaka!streeter
From: streeter@theory.lcs.mit.edu (Kenneth B. Streeter)
Newsgroups: misc.forsale.computers,comp.sys.ibm.pc.hardware
Subject: WANTED: Data Acquisition Card for IBM PC
Message-ID: <1991Mar7.175149.29782@mintaka.lcs.mit.edu>
Date: 7 Mar 91 17:51:49 GMT
Sender: daemon@mintaka.lcs.mit.edu (Lucifer Maleficius)
Distribution: na
Organization: Laboratory for Computer Science, MIT
Lines: 26


I am looking for an inexpensive Data Acquisition Card for an IBM PC.
I simply need a card that can do EITHER of the following:

1) Count cycles of a single irregular digital TTL-level (0-5V) signal,
with pulses occuring with at least 6.6 ms between pairs of rising (or
falling) edges.  (150 Hz) The count should be able to be read by a
user program, and must be at least 8 bits of count, preferably 16 bits
or more...)

2) Have 8 to 16 parallel lines that can be read, which would be
connected to external circuitry performing the count of a TTL-signal
like the one mentioned above.  In this case, external circuitry could
maintain the count, and the data acquisition card is used only to
sample the count at any time.


A card permitting option 1 would be preferred.  The card would be
useless to me without documentation or a sample application similar to
the above.

--
Kenneth B. Streeter         | ARPA: streeter@im.lcs.mit.edu
MIT LCS, Room NE43-350      | UUCP: ...!uunet!im.lcs.mit.edu!streeter
545 Technology Square       | (617) 253-2614    (work)
Cambridge, MA 02139         | (617) 225-2249    (home)