The ET-11967 Service Module

[ThomasF]

Hi again,

Curiosity wins sometimes - so I disassembled a single memory module, lifted the B3 pin, and made a shortcut between DATA and the FI pin.

With two memory modules in port 1 and 2, my Pico with Service Module SM-1C in port 3 and the DIY "ET-11967" in port 4, I can now run the IO PORT TEST with success!

There is no emulation of the ET-11967 in the Pico, it just hold the ROM for the Service Module at 0x4000.

(05-28-2024 07:31 PM)Didier Lachieze Wrote:  Does this means that an ET-11967 Service Module could be built from a modified 82106A single memory module where B3 would be internally forced to 0 and DATA connected to FI?

So the answer should be yes, and very easy to do so (with no problem to restore the module again) ...

Cheers,
Thomas