On 13 Feb 2006 14:52:07 -0800, "Don" wrote:

>Well after a little research I am now in the initial phase of designing
>a RAMdisk board that will be compatable with the TurboROM. I am going
>to use static RAM chips and hope to be able to make some or all of it
>battery backed. Should even be able to cold boot off of it. Now you all
>know why I use the nick name of "micronut". I LOVE to tinker.
>
>Don

Care to share your resources?

The original Advent design would suck down batteries fast
due to the use of Dram controller and a lot of Dram chips.

If you use cmos static ram you will not only save power but battery
backup using Dallas ram controllers will make the battery backup
easier. Static rams to 512k bytes are available.

Allison

You read my mind Allison,

I've go enough 128K by 8 RAMs to test the design but 512K by 8 should
work also. I found a file on the Walnut Creek CD ROM that has a
detailed theory of operation of the TurboROM. That and my trusty little
dis-assembler gave me enough information. Turns out that all the code
necessary to talk to the RAM drive in already in the ROM.

Don

On 13 Feb 2006 16:55:54 -0800, "Don" wrote:

>You read my mind Allison,
>
>I've go enough 128K by 8 RAMs to test the design but 512K by 8 should
>work also. I found a file on the Walnut Creek CD ROM that has a
>detailed theory of operation of the TurboROM. That and my trusty little
>dis-assembler gave me enough information. Turns out that all the code
>necessary to talk to the RAM drive in already in the ROM.
>
>Don

Ok, I'll get out the WCCD and get the Turbo source out. I know it was
in the turborom but sources...

Allison