Re: COP421 dumps!

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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