[Coco] What do people want?

[David Ladd]

On Sat, Dec 13, 2014 at 12:17 PM, Mark Marlette
<mmarlette at frontiernet.net> wrote:
> David,
> I believe that we had had an email thread on this subject of the FTDi and what my proto contained.

Mark, you would be right on this.  We did a year or two ago.  At that
time was looking at the FT245BM which used a external crystal and I
think other components.  Found that had been replaced by another
revision chip and then that was then later replaced by this FT245RL.
One reason I shared the FT245RL in this discussion for the simplicity
of chip.

> Aaron and I did some initial benchmarking on this chip platform several years ago and it is capable of sustained serial transfers of over 100KBps, actually we obtained 130KBs, IIRC.
> Taking the hardware and developing the handshake that is optimal for the coco and SuperDriver, takes a CPLD. This approach is being used in all of my new designs which will take all transfers on megaread test times to 7-9 seconds. This is the initial testing Boisy and I did on this subject with SuperDriver and the overhead research performed to optimize the data transfer rate on the CC3.
> So USB/serial, SD(SPI), doesn't matter. Raw data transfers around a ~1M baud.

I also brought it up as there are already drivers for the becker
interface and figured it would work well for most of our needs overall
if such a device ever got made. :D  Mainly tossing out ideas is all.
And there is always room of discussing better ways of doing things
too.  How we get better toys(errr.... cough.... products).

>