[Diy_efi] Motorola 68HC11

[The Punisher]

I'm interested. I've been thinking about using an ATMega at 16Mhz with 
compiled code. What uC's are you thinking about using??


From: "Kent Martin" <kentmartin at froggy.com.au>
>Reply-To: diy_efi at diy-efi.org
>To: <diy_efi at diy-efi.org>
>Subject: Re: [Diy_efi] Motorola 68HC11
>Date: Thu, 20 Jun 2002 13:21:54 +1000
>
>Hi,
>I have worked with these little suckers a fair bit and I did one
>project where I wrote to the bootstrap register (I think) while running in
>external memory and then reset the micro to run code internal to the chip
>to program the external flash memory. So I think the answer to your 
>question is no.
>Writes to this register only become active after reset.
>FYI, if you using the HC11 for an EFI system you would do well to pick 
>another micro.
>I have built an efi system with the Hc11 before (in assembler) and it is 
>not fun.
>Many more suitable micros are available for this type of application and I 
>am
>investigating a few of them now. If you are interested let me know.
>
>Kent.
>   ----- Original Message -----
>   From: Matt Donohoe
>   To: diy_efi at diy-efi.org
>   Sent: Sunday, June 16, 2002 12:49 AM
>   Subject: [Diy_efi] Motorola 68HC11
>
>
>   Hi,
>
>   Just wondering something, can the 68HC11 be changed from expanded to I 
>guess you would call it "bootstrap" mode on the fly by the use of a 
>register flag?
>
>   If so, which flag, if no, which model of chips allows this?


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