Re: Vulcan based SSD Apple II/gs

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

"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 am in agreement, and also the firmware would need an update.

Bill