Bill Couture wrote:

> When the chip starts up, it executes (on the 12C508) the MOVLW calibration
> instruction at the top of memory, a bunch of NOPs (which are the old,
> erased code), and then the current program.


Whats wrong with

        org 0x0000

        ; set cal data

        org 0x0008

        ; code start version 1


That fails

        org 0x0000

        ; set cal data

        org 0x0007

        ; code start version 2
        goto Code2


That fails

        org 0x0000

        ; set cal data

        org 0x0006

        ; code start version 3
        goto Code3


etc. as long as ROM space allows.

Get a 12F675 chip. Much easier ;-)

--
Best regards

Tony

mICros
http://www.bubblesoftonline.com
mailto:sales@bubblesoftonline.com

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