From: "Matt Foster"
Subject: Re: RS232 newbie - in need of assistance!
X-Newsreader: Microsoft Outlook Express 6.00.2720.3000
Date: Fri, 3 Jan 2003 22:42:57 -0000
NNTP-Posting-Date: Fri, 03 Jan 2003 22:42:52 GMT
Organization: blueyonder (post doesn't reflect views of blueyonder)
What's the upshot, put the 100k back?
And yes, it was snatched from a different design.
"PCS Electronics" wrote in
> "Spehro Pefhany" wrote in message
> > On Fri, 3 Jan 2003 22:03:00 +0100, the renowned "PCS Electronics"
> > wrote:
> > BTW, he should be careful of RA4 with a software UART on the other
> > port A pins. For example, setting the data output pin high could
> > cause the LED to turn on and stay on.
> > This can be prevented by adding some software, using a PORTB pin,
> > by adding a pullup resistor, or by using a red LED rather than
> > some other colors (maybe). ;-) Incantations and sprinkling with
> > holy water have proven ineffective against this.
> That's a weird issue. But he did in fact have this pull up bofore, 100K.
> Probably copied it from a similar design. I advised him, in lack of a
> judgement, to remove it. So, you're saying the LED won't go off if he
> it out?
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