piclist 2001\04\02\051346a >
Thread: Simple serial port project?
face BY : JP.BROWN email (remove spam text)

Hi Greg!, the problem you are having could be due to the PC handshake
lines needing pulling up. Try this:

link pins 7 and 8, also link pins 4 and 6  (9 pin D type only)
 "       4 and 5,       "        6 and 20 (25 pin D type only)

Some PCs do not need this connection (they float to the right level)
other PCs will not play ball until these signals are taken care of.

----- John

On Thu, 29 Mar 2001, Greg Miller wrote:

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In reply to: <200103291608.LAA29725@ct26936-b.jfrvil1.in.home.com>
See also: www.piclist.com/techref/io/serials.htm?key=serial
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Subject (change) Simple serial port project?

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