8 May
2004
8 May
'04
12:06 a.m.
On May 7, 2004, at 5:32 PM, Kate Alhola wrote:
........The problem is to get it working with bdi2000. There is something that i did wrong with bdi2000 configuration and i try figure out what.
Check to make sure the start up code isn't writing over some of the processor debug registers. Debuggers get upset when they set a particular mode and then you come behind them in software and mess it up :-) I've seen similar things happen with other processors, and this has been the cause. It is proper and necessary to have a boot rom initialize these registers for normal operation, but not when you are trying to use a debugger. If you take out such initialization for debugging, don't forget to put it back when you ship the system! :-)
-- Dan