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DOES KEIL CODE BANKING WORK AT ALL ?

Charles Lee

I Purchased Keil DK51 in 2001 and updated in 2002 to version 7.

However, I was given MON51.LIB dated 5/2/2001 and MON51B.LIB dated 6/29/1998.

I was able to use MON51.LIB with my code banking code by manually switching bank to load user code.

However, when I use banking monitor MON51B.LIB, my code can be be loaded.

Does any one have experience of a working MON51B.LIB (6/29/1998). If it does not work, I believe that Keil has the obligation to supply a working MON51B.LIB without me paying the update fee.

Thanks.
Charles Lee

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  • 0 in reply to Jon Ward

    I checked the Hex files, and I am sure that the C51 duplicated interrupt vectors & all COMMON code on each banks modules. Actually, I specified that the code bank area is from 90H to 7FFFH. C51 automatically duplicates interrupt vectors on all bank object modules.

    My code banking program works with non-code banking mointor (MON51.LIB), but not the banked monitor (MON51B.LIB).

    Thanks for your suggestion.

Reply
  • 0 in reply to Jon Ward

    I checked the Hex files, and I am sure that the C51 duplicated interrupt vectors & all COMMON code on each banks modules. Actually, I specified that the code bank area is from 90H to 7FFFH. C51 automatically duplicates interrupt vectors on all bank object modules.

    My code banking program works with non-code banking mointor (MON51.LIB), but not the banked monitor (MON51B.LIB).

    Thanks for your suggestion.

Children
  • 0 in reply to Charles Lee

    I redo the hardware to change the memory map.
    COMMON: 0-1FFF; A000-FFFF
    Bank: 2000-9FFF;

    Monitor resides at EE00, and a shadow program is used at power-up to jump to Monitor.

    After making all the changes, I can run MON51 at 57600 Baud. (My CPU is at 3.58MHz with C509L chip).

    When I switch to MON51B. I can not load my code at 57600 Baud. However, when I reduce the Baud Rate to 28800. I can make it work.

    Good Luck for people trying code banking.

    Charles Lee