Dear J?rgen, in message <200307181126.35714.jbeisert at eurodsn.de> you wrote: > > I'm trying to debug my u-boot with BDI. It's a 405GP system.
This has nothing to do with Linux and is thus off topic on the linuxppc-embedded mailing list. Please post such questions to the u-boot-users mailing list. > In the telnet sessoin I can insert "reset run" and the u-boot starts. When I > enter "reset halt" and then "go" it won't do anything. I have tried with ddd What do you mean with "it won't do anything"? Who won't do anything? The BDI2000? The CPU? What makes you think the CPU does not do anything? Are you sure your BDI2000 config file is OK for your board? How did you configure "RESET type" and "STARTUP mode"? Is your "START address" ok? > When I step the mtmsr instruction ddd shows address 0x700, and the esr > register has 0x8800'0000 (illegal instruction occured?????). > Same when I place a breakpoint behind the mtmsr instruction und use "cont" > instead of "stepi". You are aware that you cannot single step through certain instructions, aren't you? > What is the difference between "reset run" and "reset halt", "go"? "reset run" and "reset halt" change the startup mode to "run" and "halt", respectively. "go" sets the PC and starts the target system. Ummm.. is there any specific part where the BDI2000 manual is unclear about this? Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de The computer can't tell you the emotional story. It can give you the exact mathematical design, but what's missing is the eyebrows. - Frank Zappa ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/