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[picsig] Re : External oscillatior

lloyds mail lmoffitt at bellsouth.net
Sun Mar 27 05:10:45 UTC 2005


Share it with us dave        Lloyd
----- Original Message ----- 
From: "Dave VanHorn" <dvanhorn at dvanhorn.org>
To: "TAPR PIC Mailing List" <picsig at lists.tapr.org>; "TAPR PIC Mailing List" 
<picsig at lists.tapr.org>
Sent: Sunday, March 27, 2005 4:11 PM
Subject: Re: [picsig] Re : External oscillatior



In the hobby world, sometime it seems like there is only one
microcontroller out there.

This sort of thing is one reason that I don't use the pic.
The AVR has no holes in it's SRAM, no pages, tables can be located
anywhere, and so on.
Vectored ints, most instructions are one xtal clock, no read-modify-write
problem..

I recently did a repeater controller (basic) in a tiny-11, which sells for
$0.25.

Adjustable COR debounce, ASCII text to CW, ID timer, polite ID,
programmable multi-note courtesy tone, adjustable timeout timer, adjustable
hang timer,

That's an 8 pin chip that uses it's internal 1 MHz clock, and needs a
couple R's to set the tone levels, and a keying transistor to make a basic
repeater controller.
(or link id'er etc)  The schematic looks more like a 555 project.



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