Hi everyone. I got bored today (Sunday afternoon) and
decided to have a crack at the question posed on the piclist
a few weeks back, how to get two separate clock speeds on
a PIC allowing the PIC to decide which clock speed it is
using under software control. This provides an alternative
to sleep mode with wakeups.

I got it working fine! Only needs ONE schottky diode and ONE
PIC output pin to switch speeds (or can be switched by any
logic level signal).

Although the circuit is very simple I decided to put it up
as a .htm page as it has a few circuit diagrams and a lot
of text to describe how it works and factors affecting its
performance.

0.5 hours; design circuit on paper
1.5 hours; build/test a working model on protoboard
2.0 hours; write simple report with pictures

Who do I bill the 4 hours to?? Only kidding! ;o)

I don't know how long I will have this page up for, so if
you are interested in this dual clocking thing please save
the page and pictures to your hard drive. Maybe James would
like to add it to the piclist archives? (I would be
honoured!)

Here it is:
www.ezy.net.au/~fastvid/pic2clk.htm

I have some projects coming up soon and may not be able to
continue my piclist subscription. I have gained much from
the good people on this list and maybe this is something
I can offer back. :o)
-Roman

PS. If someone has already done this implementation I will
look pretty foolish, but nobody mentioned they had a simple
dual clock solution, and what the hey, I was bored on Sunday
afternoon. :o)

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