Subject: Re: [stella] compact send-only serial subroutine From: Glenn Saunders <mos6507@xxxxxxxxx> Date: Sat, 13 Aug 2005 02:38:55 -0400 |
--- Fred Quimby <c9r@xxxxxxxxxxx> wrote: > If you prefer use a TTL level converter like the > ones you posted, the > program needs to be modified. See comments below > for how to modify the > program if you use one of these. Could you explain why you invert the start and stop bits with a TTL converter? I'm assuming that this reverses how the serial port interprets marks and spaces in relation to the voltages, right? I'm all for saving money, but what would happen if you connected the receive line also and tried to read on the 2600 without a TTL converter? I'm thinking that would be worse because you'd be feeding a -12v and +12v signal to a port that is designed for 0 and +5v. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://stella.biglist.com
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