AVR-Chat

Thanks--with that solved, my project is complete.  And I'm so glad, b/c it
has turned out very cool (a dynamic light show dependent on the FFT of the
music playing).

On 5/6/07, kernels_nz <kernels@slingshot.co.nz> wrote:
>
>   PORTB = PORTD; //match the ports
>
> PORTD in this case would hold the values of the bits for which the
> pullup resistors have been turned on. This will probably just set all
> the bits of PORTB always off without caring about whats on PIND.
>
> Cheers
> Hein B
> Auckland,
> New Zealand
>
> --- In AVR-Chat@yahoogroups.com <AVR-Chat%40yahoogroups.com>, "kernels_nz"
> <kernels@...> wrote:
> >
> > In C it should be PIND aswell.
> >
> > Cheers
> > Hein B
> > Auckland, New Zealand
> >
> > --- In AVR-Chat@yahoogroups.com <AVR-Chat%40yahoogroups.com>, "David
> Greenberg" <dsg123456789@>
> > wrote:
> > >
> > > I am just getting back into using AVRs with linux, and here's my
> > > situation. I'm using avr-gcc, an STK500v2, and an AT90S2313 (I know,
> > > it's old, but I already have a couple) to try some test programs.
> > > This is the program that builds ok, programs and verifies okay, and
> > > then doesn't work. It should let my control lights with the
> > > pushbuttons, but i'm clearly doing something wrong. Thanks for your
> > > advice!
> > >
> > > #include <avr/io.h>
> > >
> > > int main(void)
> > > {
> > > DDRB = 0xFF; /* We put port B pins in output mode */
> > > PORTB = 0xFF; /* put all lights in off state */
> > >
> > > PORTB = 0x00;
> > >
> > > DDRD = 0x00; /* We put port D pins in input mode */
> > >
> > > for(;;){
> > > PORTB = PORTD; //match the ports
> > > }
> > >
> > > PORTB = 0xAA;
> > > return(0);
> > > }
> > >
> >
>
>  
>


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