Alice Campbell wrote:
>
> I have tried this.  My code has sprouted bank select errors like
> dandelions.  I think there is something I dont understand about the
> way the memory is organized.  If I set:
>
>         cblock 0x10
>         buf1    :1
>         buf2    :2
>         buf3    :3
>         etc             :4
>         endc


I haven't tried this but

cblock 0x10    ; check address >= lowest ram location for chosen chip.
  buffer: X    ; X = number of bytes needed for buffer
endc


To access buffer through indirect addressing
Eg.
10 bytes in buffer block starting at RAM address 0x10
Offset can vary from 0 to 9

        movf offset,w   ; W = 0 - 9
        addlw buffer    ; W = 0x10 + (0 - 9)
        movwf fsr       ; set indirect address
        movf indf,w     ; W = data from buffer



M. Adam Davis gave a pretty good description of a boot loader.

Learning changes ignorance to knowledge. No appologies needed :-)

I hope this helps.


--
Best regards

Tony

http://www.picnpoke.com
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