AVR-Chat

Do you have AVCC connected to +5v?

-----Original Message-----
From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com]On
Behalf Of acemailone
Sent: Friday, May 13, 2005 8:12 PM
To: AVR-Chat@yahoogroups.com
Subject: [AVR-Chat] Blinking leds on PortA and PortB - ATmega163


I'm trying to blink some leds using an ATmega163. I have one led on 
PORTB.0 that goes to GND through a 4k7 resistor. This one works fine.
A second led on PORTA.0 going to GND doesn't blink. If I connect it to 
VCC, then is blinking.
I checked the datasheet of ATmega163 and I didn't see any difference for 
ports A and B when they are configured as general I/O.
What could be the explanation?

Adrian



 
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