9100 keyboard wedge (udpate 2)

From: David Shoemaker <davids_at_oz.net>
Date: Tue Jun 03 2003 - 04:19:32 EDT

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<DIV><FONT face=Arial size=2>Well today was an educational and busy day with the
atmel website.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>It was also close but not quite a living hell with
WinDraft.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>I have posted a bmp with my current schematic plans
based on the AT90S2323 part.&nbsp; The only draw back to this part is that it
does not have a built in UART. So one will have to be written in software,
anyone with a good AVR background want to tackle that?&nbsp; I am sure I can do
it, but it might take me a while.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>If I can't come up with a software UART solution I
can change over to the 2313 part which has a built in UART.&nbsp; Of course the
part is also 20 pin instead of the tiny 8 pin 2323 with lots of left over pins
wasted.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>I will be basing the software off of one of the
atmel application notes: AVR313. That note is for the 8515 part (a 40 pin part)
but I think I can adapt it well enough (once again assuming a software UART can
be written).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Looking for feedback.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>The bmp (and my schematic file and a start of an
atmel part library) are at: <A
href="http://www.thewellworld.net/fluke/wedge">http://www.thewellworld.net/fluke/wedge</A></FONT></DIV>
<DIV><FONT face=Arial size=2><A
href="http://www.thewellworld.net\"></A></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>If anyone has more experienced with WinDraft and
wants to clean up the schematic I wouldn't mind a bit :)&nbsp; Or if you know
how to edit a part in a library after you have closed the dang library
file.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>David</FONT></DIV></BODY></HTML>

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Received on Tue Jun 03 07:46:16 2003

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