From: David Wood (
Date: 2007-12-14 23:53:22

I have a 1541II board with a broken FDC chip (cracked, literally) thats
begging for an alternate mass storage device. ;)

That said, recreating the 1541 board sounds interesting.  Is your idea to
implement an ide-only version?  If so that saves much design, as you won't
need the analogue section.


On Fri, 14 Dec 2007, Jim Brain wrote:

> The board is sent for review, so if anyone has time this weekend to make
> a last schematic validation, please do so.  They'll start the board Monday.
> A couple items:
>     * Due to the yield issues on panels (per board cost as size goes
>       up), I'm resisting the urge to rework the board for RAM/ROM/etc.
>       at present.  That said, If someone gets some code to work but
>       needs RAM and extra ROM, I promise I'll spin a board immediately.
>       The same goes for a 64/128 implementation.  Adding ROM/RAM to this
>       design is trivial.  Ruud already did it.
>     * I want to thank folks for the ideas and the responses.  I love
>       laying out boards.  I also love making them multi-purpose.
> Thinking ahead, I went online and found that WDC offers the 65C02S and
> 65C22S in QFP packages.  Although a bear to hand solder, adding a bit of
> SMT glue, SMT RAM/ROM, and an IEC connector, you truly could have an
> entire drive in half the space of this design.  I had seen the PLCC
> variants, but the QFP ones were new to me.  The possibilities are endless.
> Jim
>        Message was sent through the cbm-hackers mailing list

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