Lpc2000

> I wrote this little test to see how fast I could toggle an IO pin. 
> Using the way I did it here from rising edge to falling edge the time
> is only ~540nS.  This seems slow to me.  Is it?  I have verified that
> the DesiredSpeed is indeed locked at ~60MHz

http://www.ovro.caltech.edu/~dwh/ucos/project_AR1803.pdf

Take a look at p29, it shows how to get 3.5MHz.

The test uses the older peripheral bus I/O registers. Some
newer devices have a set of faster registers.

Dave