At 05:47 PM 11/22/03 -0500, you wrote:
>Setting the VPB divider to 1 in this configuration also seems to have an
>effect on the UART. I haven't figured that out yet but what should be
>9600 baud drops to about 9000 baud.
>
>Robert Adsett
Got it. Cleaning up by support and generalizing it so I could place it
with some newlib support and I realized that I had misplaced the pll
divider field by 1 bit, resulting in a value of 1/2 what I expected. That
means that the internal pll was running at ~120MHz which is below the
156MHz specified minimum. Apparently when that happens some peripherals
notice the effect and others don't.
Robert
" 'Freedom' has no meaning of itself. There are always restrictions,
be they legal, genetic, or physical. If you don't believe me, try to
chew a radio signal. "
Kelvin Throop, IIIMessage
Re: [lpc2100] Simple test program - is now instruction pipeline/VPB question
2003-12-03 by Robert Adsett