Re: Vulcan based SSD Apple II/gs

["Bill Garber" <willy46pa@comcast.net>]

"Bill Garber" <willy46pa@comcast.net> wrote in message GtGdnTfjkJPJqnHQnZ2dnUVZ8q-dnZ2d@giganews.com">news:GtGdnTfjkJPJqnHQnZ2dnUVZ8q-dnZ2d@giganews.com...
>
> "Steven Hirsch" <snhirsch@gmail.com> wrote in message JcqdnUmvuNcHq3XQnZ2dnUVZ_sudnZ2d@giganews.com">news:JcqdnUmvuNcHq3XQnZ2dnUVZ_sudnZ2d@giganews.com...
>> On 06/02/2011 08:26 PM, Michael J. Mahon wrote:
>>> "Bill Garber"<willy46pa@comcast.net>  wrote:
>>>> "Steven Hirsch"<snhirsch@gmail.com>  wrote in message
>>>> 3omdnR5scsrKmHXQnZ2dnUVZ_oudnZ2d@giganews.com">news:3omdnR5scsrKmHXQnZ2dnUVZ_oudnZ2d@giganews.com...
>>>>> On 06/02/2011 11:43 AM, Bart wrote:
>>>>>
>>>>>> The Vulcan unlike the Focus or other more modern IDE cards is 8 bit.
>>>>>
>>>>> And this is the precise reason why only certain hard disks work with the
>>>>> Vulcan as well.  Apparently 8-bit transfer mode was part
>>>>> of the ATA spec, but not widely implemented - particularly in recent years.
>>>>
>>>> Several of us, me included, have considered disassembling the Vulcan ROM
>>>> (Gold), and have a go at rewriting it to accommodate the 16-bit ATA protocol.
>>>> The only problem is, would there be enough interest in that to make it worth
>>>> the effort. Let us hear from all who would benefit from this, being there are
>>>> newer and better solutions to this issue.
>>>
>>> I think that may be a hardware change.
>>
>> Almost certainly.  The drives want to transfer 16-bits at a shot, so you'd need to latch that quantity and clock two bytes out in 
>> sequence to the Apple.

I had a rethink. What about an MMC card in an SD to CF adapter?  The SD/MMC
protocol allows for 8-bit operation. I don't think the SD/HC variety will work.

Can someone give this a quick try. I'm not set up ATM for the Vulcan card.

Bill