Lpc2000

> > > Yes,direction (GPIO0_IODIR) was OK.
> > >
> > > PCB_PINSEL1 &= 0x0FFFFF; //bit 23:20 as 0, ?P0.26?
> > and
> > > P0.27 as GPIO
> > > GPIO0_DIR |= (1 << 26);  //Set as output
> > > GPIO0_IOSET/GPIO0_IOCLR | =(1 << 26);

P0.26 is reserved per user manual page 128:
http://www.semiconductors.philips.com/acrobat_download/usermanuals/UM_LPC21X
X_LPC22XX_2.pdf

You should be able to toggle P0.27.


Joel