From: Jim Brain (brain_at_jbrain.com)
Date: 2007-12-14 23:27:24
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
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