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svenpetersen1965 / 1541-parallel-adapter-SpeedDOS

This is a reliable and easy to build parallel User Port Adapter for the Commodore 1541/1541-II
GNU General Public License v3.0
24 stars 3 forks source link

Common ground missing from cable #2

Open UffeJakobsen opened 6 months ago

UffeJakobsen commented 6 months ago

Hi,

As a common ground is missing from the parallel cable between C64 and 1541:

I believe that it would make sense to include a written warning that the serial IEC cable should be connected at any time - as it provides a common ground connection between the C64 and the 1541.

Without the IEC cable connected the user - if unlucky - may fry either the CIA and/or VIA due to potential differences due to missing ground

/Uffe

svenpetersen1965 commented 5 months ago

Hi Uffe, sorry, I forgot to write. The thing, that I can do is writing "IEC-cable required!" on the board. Since there is not much space and I don't want to change the board size or layout, I have resized the "User Port/Parallel Adaptor" text and re-formated it (made it smaller). The warning is placed above the connector in a prominent size.

I will do the same on the label for the 3D printed case. After finishing it, I will release gerbers with an updated silk screen.

UffeJakobsen commented 5 months ago

That sounds good. Thanks :-)

svenpetersen1965 commented 3 months ago

Sorry... took a while, but now, the updates are uploaded