Subject:
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Re: Basic assembler and downloader question
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 9 Jan 2001 04:20:16 GMT
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Viewed:
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646 times
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> ORG $8000
> LDAA #$40h
> STAA $1000
> ORG $FFFE
> FDB $8000
> Board memory error: wanted 86, got 3e at address 8000
> Board memory error: wanted 40, got 86 at address 8001
> etc...(3 more similar errors)
The first thing that occurs to me is this: are you sure that $8000 is
a valid ROM/EPROM/EEPROM address?
I would suspect that is the problem. I'm taking an educated guess
though, since I'm not familliar with the software you are testing it
with. I note from my MC68HC11 Reference Manual that some versions of
the 68HC11 can have the EEPROM remapped and some, like the A8, have it
fixed between $B600-$B60F. Your ORG value should be set at the start
of wherever the EEPROM is mapped in your device. Anything else will
produce the results you've got - namely program verification failures.
Matthias Jetleb
VA3-MWJ
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Message is in Reply To:
 | | Basic assembler and downloader question
|
| Hello All, I recently completed assembly of my Handyboard and now I'm excited to be moving into the coding realm (which is more my area). I was able to get Interactive C to communicate with the board. However, given my nature of wanting to (...) (23 years ago, 8-Jan-01, to lugnet.robotics.handyboard)
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