🚀 go-pugleaf

In article <22946@pasteur.Berkeley.EDU> wooters@icsi.berkeley.edu (Chuck Wooters) writes:
$I have a generic (made in Taiwan) multi I/O card.  It
$has a printer port/clock calend/game/ and (I thought)
$two serial ports.  I bought the card a couple of years
$ago, and until recently had no need for the second 
$serial port.  When I tried to hook my mouse to COM2,
$I discovered that the card was missing a chip in the
$socket marked COM2 :-(.

   All of the I/O cards I've seen (granted, not many) require three
chips to upgrade to a second serial port.  For my board, these are
a 16450 (UART), MC1488P or SN75188 (converts TTL levels to RS-232),
and MC1489P or SN75189 (converts RS-232 levels to TTL).  All three
chips should be available at any half-decent electronics retailer
(for that matter, even Radio Shack used to sell the latter two).
-- 
Stephen M. Dunn                               cs4g6ag@maccs.dcss.mcmaster.ca
          <std_disclaimer.h> = "\nI'm only an undergraduate!!!\n";
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    "So sorry, I never meant to break your heart ... but you broke mine."