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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.
- Lines: 22
- Nntp-Posting-Host: gopher
-
-
- 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
-