Re: sd2iec ported to petSD

From: MikeS <>
Date: Mon, 30 May 2011 17:24:15 -0400
Message-ID: <A1CDCCD672C943D1AC829FACD3DCB875@vl420mt>
----- Original Message ----- 
From: "Steve Gray" <>
To: <>
Sent: Monday, May 30, 2011 4:35 PM
Subject: Re: sd2iec ported to petSD

> For me, a simple solution that plugs directly onto the PET IEEE card edge
> connector would be best. I'm not likely to have additional drives. If a
> solution can be made that's small and simple that would be great. It's too
> bad there is no power on the IEEE connector to power the unit, so we'd
> need to tap the cassette port again. I'd probably pick up a couple units
> if they were in the $50 price range give or take.

> Its been a long wait for a complete plug-and-play solution for PET card
> storage....

> Steve

----- Reply: -----


No reason why it couldn't also have pass-through card edge fingers on the
opposite edge extending the port; that's how we connected to the IEEE port
without the expensive hard-to-find connectors while still leaving a place to
connect the standard cable connecting other drives/printers etc., and it
would certainly keep costs down.

But Jim does have that inventory of connectors to unload... ;-)


----- Original Message ----
> From: Jim Brain <>
> To:
> Sent: Mon, May 30, 2011 3:32:51 PM
> Subject: Re: sd2iec ported to petSD
> On 5/29/2011 9:41 PM, Nils Eilers wrote:
> >> Impressive. I hope you'll consider feeding the code back to Ingo. Is
> >> there
>a project page? I still have design files for uIEEE/SD, but I am so far
>on projects due to the job search and new job.
> >
> >
> > I'd me more than happy, if you'd offer a uIEEE/SD in your shop. If I can
> > help
>you in any way, just let me know.
> Getting the patch into the codebase would be the best help. A schematic
>showing which pins you connected to the 75XXX units would also help. I am
>embarking on a redesign of the uIEC/SD, and now's a great time to add the
>option. I was able to find a nice source of IEEE connectors at a reasonable
>price, and I found IEEE cables at an OK price ($13.00USD is not great, but
>not USD$100.00, which is what I saw on some sites)
> > I used a atMega 1284p with 75160/75161 IEEE bus drivers, but the
> > software
>fits in a 644 at the moment and allows connecting the IEEE bus directly to
>AVR (tested with a XS-1541) -- though I wouldn't recommend that: it doesn't
>when all my IEEE hardware is connected.
> Yeah, I was not prepared to support a design that does not use bus
> drivers.
>Too many failures on loaded busses.
> Jim
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Received on 2011-05-30 22:00:18

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