Re: Quad-Port Serial Expansion Board for the Apple Lisa

From: James MacPhail <gg__at_email.domain.hidden>
Date: Sun, 2 Sep 2018 12:10:57 -0700

>the original Tecmar card didn't have a ROM ID, does this?

No, there is no ROM ID; in lieu of a ROM, the Tecmar card had a configuration DIP-switch that is read by software.

As the only effect of changing the switch seemed to be making the board unrecognized, this board has the known-to-work setting pre-set so that existing software will identify it as a Tecmar card. (A DIP-switch can be installed later if desired.)

>I see this uses NS16550 UARTs, did the original Tecmar card use the
>upgraded UARTs or did it use 8250s?

The Tecmar card used the 8250. The 16550 is much easier to find now.

>Where can we find the Raspberry Pi setup for uucp that you mention
>in the link?

James Denton will need to answer this.

HTH, James

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Received on 2018-09-02 15:24:33

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