Usb / would this be possible?

[platon42]

> That said yeah the SL811 is evil, buts its about the only PLCC case USB host controller your gonna find and it is workin on the Amiga already so it was the obvious choice.

Doing a bit more research pays off sometime.

The very first prototype of the Subway used the SL811HS. It was found unsuitable due to massive hardware bugs and silly design.

At that time (2001), there was the TransDimension UHC124 chipset, much more powerful than the SL811HS, a lot less buggy). Its bus interface was so flexible that it could operate also in the 8 bit databus, 4 bit address space of the clockport, but also in 16 bit mode with 16kb address space. Hence, it was used for the Subway USB Clockport card and the Highway USB Zorro II card, both manufactured by E3B.

Later for the Algor, the next generation OTG243 chipset also from TransDimension was used. It has a much better transfer logic, more memory, 32bit access, which allows high transfer speed at less interrupt frequency.

None of these chips are BGA and easy to solder.

About the Philips ISP1760: I have a working driver for that one for the Amiga already Watch this space ;-P

[csixty4]

Take a look at this one: www.vinculum.com

Oh, it was a happy day when I first heard about that one.  I brought up the idea of doing a VDIP-based IEC serial USB drive for the 64 at one of our user group meetings, but couldn't find anyone interested in working on it.

That chip is *perfect* for doing USB on the 64.

[JimS]

Oli_hd wrote:
Yup, thats the sort of thing utri007 was lookin for.
Now just to make it work on the miggy  :lol:

Well, as the Jargon File sez. "It's just a small matter of programming" ;-)

[JimS]

csixty4 wrote:

That chip is *perfect* for doing USB on the 64.

I don't know much about the 64, being an old Atari 8-bit guy.;-) But I'd guess you could run the Vinculum chip off the serial I/O bus or the hack bus on either machine. I kinda like  Vinculum's V-Music module, with the integrated MP3 chip.... It would be kinda cool to play MP3s on a C64 or Atari 800XL. ;-) Only costs 45 bucks...

[mboehmer_e3b]

Ive just bought a great Philips USB 2.0 controller from Digikey...

Fine. As Chris wrote, we have a working prototype including Poseidon drivers, both PIO and DMA.

I can just give you the hint that you will need more than "it does not get hot anymore when being powered, so it works now" to get it working stable. Especially the DMA engine... well, you will find out soon enough for yourself :-)

Good luck.

Michael