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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!moe.ksu.ksu.edu!kuhub.cc.ukans.edu!jronnau
- From: jronnau@kuhub.cc.ukans.edu
- Newsgroups: sci.electronics
- Subject: Re: 68HC11E9
- Message-ID: <1992Nov9.075946.44541@kuhub.cc.ukans.edu>
- Date: 9 Nov 92 07:59:46 CST
- References: <1dkug6INNffc@moe.ksu.ksu.edu> <jmarin.721312910@messi.uku.fi>
- Organization: University of Kansas Academic Computing Services
- Lines: 26
-
- In article <jmarin.721312910@messi.uku.fi>, jmarin@messi.uku.fi (Jukka Marin) writes:
- > hampster@phys.ksu.edu
- > I use the 68HC11A1 chip to do this (and much more). I program the
- > EEPROM with the code to do what I want, so I can use single chip
- > mode. I wrote a small utility for my Amigas which programs the HC11
- > RAM or EEPROM with one command.. Very fast to update the program
- > code within the HC11.
- >
- > You'll also need a simple logic circuit to get the HC11 going after
- > power-up (it needs a BREAK character from the RS232 to start up).
- >
-
- I thought all you have to do is connect TxD to RxD with a pullup resistor
- ?
- Then it would send itself the break character and go to the EEPROM.
- I guess I'll find out tommorrow when I hook it up!
-
- Jim Ronnau
- University of Kansas
- Center for Research inc.
- JRONNAU@KUHUB.CC.UKANS.EDU
-
- > Jukka Marin
-
-
- >
-