Dear David!

David Peters schrieb:

I've been trying to get u-boot 1.1.3 to start on an AT91RM9200

system, but I

can't get it to start properly. Once u-boot is copied to memory and

loader

tries to start it, I get garbage on the screen and that is it. The

problem

seems to be in lowlevel_initS. When it tries to transfer a setup

value to a

register, that's when it fails. I've tried just changing one value

and it

still fails. What am I missing?

Have you checked that the clock rate and divisor settings are okay? You should use an oscilloscope or logic analyzer in order to find out if the "garbage" is related to an uncommon baudrate setting of the serial port. Do you use 32.768kHz and 18.432MHz oscillators?

With best regards Andreas Schweigstill