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- Path: sparky!uunet!stanford.edu!rutgers!ub!toz!cyberman
- From: cyberman@toz.buffalo.ny.us (Cyberman)
- Newsgroups: comp.robotics
- Subject: Re: mini board serial lin
- Message-ID: <gate.XRoaqB1w165w@toz.buffalo.ny.us>
- Date: 30 Aug 92 01:03:08 GMT
- Lines: 27
- X-Maildoor: WaflineMail 1.00r
-
-
- -=> David Williams spoke of "Re: mini board serial lin" <=-
- To All at 08-28-92 22:06
- DW> Ok, I deserved that. Of *course* you guys have tested it out.
- DW> Motorola told me while I was working on my thesis that their 1488/1489
- DW> RS-232 level shifters (which just about every serial application I've
- DW> ever seen uses) can handle RS-232 levels of +5v and -0.5 (!) just
- DW> fine. Still, I can envision some situations where I would want
- DW> bidirectional high-speed transfer between the controlling computer and
- DW> the robot. Just call it a matter of style, I suppose. I can't wait
- DW> untill my 3 miniboards get here.
-
- I didn't know that about the motorolla toys! Hmm
-
- If I were going to use a single board CPU like the miniboard. I
- would prefer bidirectional. Perhaps what they need to do is use
- some PAL logic to save external parts and add flexibility. Add a
- BUS that includes the serial port outputs as well. This would
- add flexibility to the system. It's too bad the 68hc11 is
- expensive or it would see a LOT more use.
-
- Stephen Cyberman@Toz.Buffalo.NY.US
- Scripted at Sat 08-29-1992 20:18:43
-
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