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Re: [AVR-Chat] PortC problem

2004-01-11 by Dave VanHorn

At 11:36 AM 1/11/2004 -0500, Dave and Connie wrote:
>My son is trying to use a Mega16 to drive LEDs on PortC using Bascom.  Bits
>0,1,6,7 work but 2,3,4,5 do not.  The port is set up with Config Portc =
>output.  The same code works on PortA but he does not want to use that port
>as it is the A/D converters.  The LED code will eventually become stepper
>code.  He has tried the code on two chips with the same result.

Have you tried replacing the chip?

It's odd that only the end bits are working.
I don't have a M16 sheet handy, but the M128 lists only address for SRAM as 
alternate functions for port c.

Alternatively, maybe the byte being output is being masked or otherwise 
corrupted somewhere?

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