Are you just measuring with a multimeter? Sounds like the port is
toggling on and off and your meter is averaging it.

Just a thought.

Josh
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Lim KK wrote:
> Other commands like while, delay routines seems to be dead. And when I tried
> to toggle the values of PORTB by doing:
> PORTB = 0b00000000;
> PORTB = 0b11111111;
> PORTB = 0b00000000;
> PORTB = 0b11111111;
> I measure the voltage at PORTB and found that the voltage gets lower and
> lower eg from 5V to 3.8V. Similarly, the 0V becomes 0.8V, 1.1V....

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