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Re: keypad and mega64

2004-04-15 by chrisatwan2000

I checked my fuses with AVR Studio and the following fuses are set:

BOOTSZ=11
BODLEVEL=1
CKSEL=1111 SUT=11

Any ideas??

Chris Atwan

--- In AVR-Chat@yahoogroups.com, Brian Dean <bsd@b...> wrote:
> 
> On Thu, Apr 15, 2004 at 10:38:39PM -0000, chrisatwan2000 wrote:
> 
> > I get no response from any key being pressed.  I tested the same
> > code on a at90s8515 and stk500, and it worked fine.  I realize 
that
> > on the mega64 you need AVcc connected (it is), M103 = 1 (it is), 
and
> > you can't directly write to PORTF and PORTG (I think I have that
> > right, PORTG is working fine).  I have code if you would be
> > interested in checking it out?
> 
> Most likely your code is fine, but check the JTAGEN fuse bit.  It 
is
> enabled by default and it commandeers the upper nibble of PORTF.
> 
> -Brian
> -- 
> Brian Dean
> http://www.bdmicro.com/

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