problem in debug mc9s12dg256c using P&E USB Multilink BDM!

[jeffzxg]

hi all

    i have a problem in debug mc9s12dg256c using P&E USB Multilink BDM. in program, i did nothing initialization to mc9s12dg256c system clock (all register value are reset values) and interrupt is diabled (//EnableInterrupts, after i download the program to the target, it can run correctly using BDM, but when not using bdm, the program can not run.

                                                                         thanks for help!

[kef]

Sounds like a famous "write-once" issue. In normal mode some registers are write once, while the same registers in special modes (debugging with BDM connected) are write many times registers. Forum search gives this:

http://forums.freescale.com/freescale/search?board_id=16BITCOMM&submitted=true&q=write+once