Re: HC-11 BPROT programming

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Article #11869

#11869

From: Alan Kilian
Date: Thu, 12 Nov 1992 20:33

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In the M68HC11 Reference Manual (The purple book) Page 4-10
Discussing EEPROM programming and the BPROT register:

"A user can write these bits to zero to enable programming and erase
 operations, but this write must be performed within 64 cycles after
 reset."


So I guess that you have to setup the reset vector to point to a routine
that writes the BPROT register and then jumps to BUFFALO or wherever
you like.


              Good luck,
                   -Alan Kilian


-- 
 -Alan Kilian           kilian@cray.com 612.683.5499 (Work) 612.721.3990 (Home)
  Cray Research, Inc.   655 F Lone Oak Drive, Eagan  MN, 55121 
                        "It's based on actual math". -Dilbert

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From: kilian@cray.com (Alan Kilian)
Newsgroups: sci.electronics
Subject: Re: HC-11 BPROT programming
Message-ID: <1992Nov12.143339.29368@hemlock.cray.com>
Date: 12 Nov 92 20:33:39 GMT
Organization: Cray Research, Inc.
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