Subject:
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RE: M68HC711E9
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sat, 17 Jan 1998 22:16:41 GMT
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Original-From:
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Germán Gentile <ggentile@cvtci^AvoidSpam^.com.ar>
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Viewed:
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1873 times
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O.K, , I still have a question. I'm working with a handy board and it
use a special mode to talk to a LCD. If i understand , the handy board
need to put the reset vector in the range BFC0 - BFFF. If get the
aplication note for the 711E9 and ,as it say, if i want to use the 12
K OTPROM i need to put the reset vector in the FFC0-FFFF range . I
want to use that that
chip to remove the battery and use that beatifoul option of ROM.
I want to make my code run from my OPTROM and use RAM extern from
8000-AFFF . The aplicattion note say the OPTROM will be allocatted at
C000-FFFF. My problem actually is to know if i have some possible
solution for the reset vetor location : i really can't believe that
question be a problem . Any help can be great. Thanks in advance.
-----Original Message-----
De: Robert L Smith <bobsmith@i2020.net>
Para: Mot-68HC11-Apps@freeware.mcu.motsps.com
<Mot-68HC11-Apps@freeware.mcu.motsps.com>
Fecha: Martes 30 de Diciembre de 1997 15:49
Asunto: Re: M68HC711E9
> Message sent by bobsmith@i2020.net (Robert L Smith)
> to the mot-68hc11-apps Mailing List.
>
> At 05:11 PM 12/29/97 -0300, you wrote:
> > Message sent by "=?iso-8859-1?Q?Germ=E1n_Gentile?=" • <ggentile@cvtci.com.ar>
> > to the mot-68hc11-apps Mailing List.
> >
> > I have a Handy board . I want to remove the battery backup for the • 32K
> > RAM. This board have a 68HC11A1FN , i have the great idea of replace
> > that with and put my code into the 12 K EPROM of the 68HC711E9. The
> > question is , can be remapped that EPROM? If not , where is • allocated?
> > The handyboard external memory is at $8000-$FFFF. Is that • overlapped?
> > i'm already see the pink book for the a8, but is not very clear • about
> > e9.
> >
> > Thanks a lot
> >
> >
>
> German --
>
> You the need the "Technical Data" reference for the 68HC11 E SERIES.
>
> It is available at the Moto web site. I also find the little pocket
> reference for the E Series (MC68HC11ERG/AD) very handy and useful, it
> contains the memory maps for the E series including the E9, E2, and • E20.
> This can be ordered on the ON-line literature order page.
>
> It shows that the 12K EPROM in the 711E9 is located at $D000.
>
> Good Luck, Bob Smith
>
> >
> >
> > To unsubscribe, send mail to Majordomo@freeware.mcu.motsps.com.
> > In the message body, put unsubscribe mot-68hc11-apps
> > http://www.mcu.motsps.com/lit/faq/major.html#zubscribe
>
> ---- Avoid computer viruses -- Practice safe hex --------------
> * * Specializing in small, cost effective embedded control systems * • *
> Robert L. (Bob) Smith Smith Machine Works, Inc.
> internet bobsmith@i2020.net 9900 Lumlay Road
> landline 804/745-1065 Richmond, Virginia 23236+1004
>
>
> To unsubscribe, send mail to Majordomo@freeware.mcu.motsps.com.
> In the message body, put unsubscribe mot-68hc11-apps
> http://www.mcu.motsps.com/lit/faq/major.html#zubscribe
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