But this way I move all the 32 bits.
I need to move only these 8
PG8-PG15
--- In [email protected], John Crispin <[EMAIL PROTECTED]> wrote:
>
> hi
>
> gpiosetbits(PORTG, (value << 8) & 0xffffff00);
> gpioclearbits(PORTG, (~value << 8) & 0xffffff00);
>
>
> although the & 0xffffff00 bit is not really needed, it is just for
sanity
>
> john
>
> > if (value&0x01)
> > gpiosetbits(PORTG, PG8);
> > else
> > gpioclearbits(PORTG, PG8);
> > if (value&0x02)
> > gpiosetbits(PORTG, PG9);
> > else
> > gpioclearbits(PORTG, PG9);
> > if (value&0x04)
> > gpiosetbits(PORTG, PG10);
> > else
> > gpioclearbits(PORTG, PG10);
> > if (value&0x08)
> > gpiosetbits(PORTG, PG11);
> > else
> > gpioclearbits(PORTG, PG11);
> > if (value&0x10)
> > gpiosetbits(PORTG, PG12);
> > else
> > gpioclearbits(PORTG, PG12);
> > if (value&0x20)
> > gpiosetbits(PORTG, PG13);
> > else
> > gpioclearbits(PORTG, PG13);
> > if (value&0x40)
> > gpiosetbits(PORTG, PG14);
> > else
> > gpioclearbits(PORTG, PG14);
> > if (value&0x80)
> > gpiosetbits(PORTG, PG15);
> > else
> > gpioclearbits(PORTG, PG15);
> > // cs e clk
> > gpioclearbits(PORTG, PG1);
> > gpiosetbits(PORTG, PG3);
> > gpioclearbits(PORTG, PG3);
> > if (clk==1)
> > {
> > gpiosetbits(PORTG, PG3);
> > gpioclearbits(PORTG, PG3);
> > }
> > gpiosetbits(PORTG, PG1);
> >
> > }
> > the problem and the slowness with which the byte is sent because the
> > byte is sent bit per bit.
> > Does a way exist to send a whole byte?
> > I excuse but I do not speak English very well
> >
> >
>
