Re: COP421 dumps!

Doh! Yes, I misread that.

On Tue, Mar 29, 2016 at 9:10 AM, Tom Stepleton <stepleton_at_email.domain.hidden> wrote:

> Have a closer read of the linked page... :-)
>
> --Tom
>
> On Tue, Mar 29, 2016 at 2:08 PM, Jason Perkins <perkins.jason_at_email.domain.hidden>
> wrote:
>
>> Fantastic news! I found another site mentioning one of these
>> microcontrollers on the Widget disk. Perhaps Dr. Schäfer could use this
>> setup to dump that controller as well?
>>
>> -J
>>
>> On Tue, Mar 29, 2016 at 4:17 AM, Tom Stepleton <stepleton_at_email.domain.hidden>
>> wrote:
>>
>>> I really must be on the wrong mailing lists!
>>>
>>> I assume you have to source a COP402 from eBay or somewhere...
>>>
>>> --Tom
>>>
>>> On Tue, Mar 29, 2016 at 1:21 AM, James MacPhail <
>>> gg__at_email.domain.hidden> wrote:
>>>
>>>>
>>>> The Lisa I/O COPS dump has been preserved here as well:
>>>>
>>>> http://segher.ircgeeks.net/COPS/
>>>>
>>>> Using that code dump, a successful plug-in replacement for the Lisa's
>>>> COPS has been built based on the romless COP402. I expect production units
>>>> will be available soon.
>>>>
>>>> This design does have its drawbacks... it isn't low power, so it won't
>>>> keep time for long when running from a battery (when power is disconnected
>>>> from the Lisa). However, since most of us don't have a battery on the Lisa
>>>> I/O board anymore anyway, this likely isn't an issue for most people.
>>>>
>>>> James
>>>>
>>>> As far as I know, the mask ROMs in the COP421s were basically the
>>>>> last bit of code in the Lisa's hardware that hadn't been preserved
>>>>> on modern media.
>>>>>
>>>>
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>>
>>
>>
>> --
>> Jason Perkins
>> 313 355 0085
>>
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-- 
Jason Perkins
313 355 0085

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