Re: 250466 PCB curiousness

From: Terry Raymond <traymond160_at_gmail.com>
Date: Thu, 11 Jul 2019 06:33:24 -0700
Message-ID: <CAJ+D7=MqY1-moqzGWdphR1XtdgT0gzBoEo6wZTqCfoSXz06YHA_at_mail.gmail.com>
Question: would SRAM work with the C64 REC (I'm not familiar with SRAM or
REC controller).

Would SRAM be easier to reconstruct in FPGA than DRAM?

Terry Raymond


On Wed, Jul 10, 2019, 11:40 PM Pasi Lassila <pasi.lassila_at_gmail.com> wrote:

> On Thu, 11 Jul 2019 at 00:48, smf <smf_at_null.net> wrote:
>
>> On 07/07/2019 23:14, Pasi Lassila wrote:
>> > One good thing with SRAM is it fixes the VSP bug. One other thing is
>> > it's still made. DRAM is all old stock. My SRAM board uses still
>> > active components.
>>
>> I thought just converting to SRAM didn't completely fix it & you still
>> had to add logic to make it work properly.
>>
>> Which you can also do with DRAM.
>>
>
> I had a 250469 unit with the VSP bug. With the SRAM board the bug was
> gone. I let the VSP Lab program run for hours. Also other SRAM users have
> reported it fixes the VSP bug.
> VSP Lab test:
> https://i.imgur.com/V1e4NrD.jpg
> My version of the SRAM board
> https://i.imgur.com/PwTAV2m.jpg
>
Received on 2020-05-29 22:28:15

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