Subject: Re: [stella] compact send-only serial subroutine From: "Fred Quimby" <c9r@xxxxxxxxxxx> Date: Sat, 13 Aug 2005 21:17:10 -0400 |
I'll try it later... The terminal program looks interesting. The hardware stuff is fun - gives me a brief distraction from working on bB. I hacked out something else based on the serial driver - I'll start a new topic for it. >I'll stick to send-only for now. The receive really >happens on the Supercharger so there isn't a need for >it outside of handshaking signals. > >John K. Harvey's Teleterm sounds like he didn't >introduce any extra parts in his cable. > >http://tinyurl.com/7ozbm > >In the meantime, do you want to finish wiring up a >cable for send and receive and try out his binary? > >I don't think he's using CTS/RTS but there would be >definite advantages there if you are talking about a >real terminal program. > > > >--- Fred Quimby <c9r@xxxxxxxxxxx> wrote: > > > I forgot that you should have a diode too so that > > the -12v doesn't make it > > through. This circuit should output about +3v for > > +12v and 0v for -12v. > > Should produce valid TTL levels for serial ports > > that output +9v and up. If > > your serial port outputs less than 9v, reduce the > > size of the 3k resistor > > accordingly. > > > > 3k > > 2600 Pin 2 ----/\/\/\/\------|<---- TxD (pin 3 on > > PC) > > | > > \ > > / > > \ 1k > > / > > | > > GND > > > > > > Archives (includes files) at > > http://www.biglist.com/lists/stella/archives/ > > Unsub & more at http://stella.biglist.com > > > > > > >__________________________________________________ >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 > Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://stella.biglist.com
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