Lpc2000

At 05:41 AM 3/29/04 +0000, you wrote:
>Thanks Robert,
>you are right. The flash maybe destroyed by the 3.3v. Now I give the
>chip a 1.8v power and let it run at 1.8v. This time I can upload the
>firmware to the part. Though the message "Code in HEX file exceeds
>Flash Limitations!" still pops up, I think the firmware is uploaded
>into the chip. because I passed the Flash Compare, even I turned off
>the power and then on again. So I guess it do be uploaded.
>Thus, I may begin to fine the firmware. But I don't know if my
>firmware executes.
>Do you have some start code the simpler the better that only sent a
>string to UART0. this way I can know that the firmware is running.

I do but it's for a different clock frequency.  Do you have or have access 
to an oscilloscope.  I probably have some pin toggling SW around.  That 
makes for simpler startup and give you a simple debugging tool for later work.

You could then download a known working hex before modifying.  Hmm, I think 
I'll make that available anyway.

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, III