annotate lunakpd1/src/primitives @ 28:bd7eec55ebc0

duart28: new design ideas * added input buffers (LVC with Ioff feature) to prevent high current flow from powered-up target into powered-down FT2232D inputs; * added series resistors on outputs to limit current flow from powered-up adapter into powered-down Calypso target; * buffer IC changed from 74LVC125A to 74LVC541A.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 28 Jun 2020 22:06:24 +0000
parents c016671a4b4a
children
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c016671a4b4a lunakpd1 project started
Mychaela Falconia <falcon@freecalypso.org>
parents:
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1 header_10pin numpins 10;
c016671a4b4a lunakpd1 project started
Mychaela Falconia <falcon@freecalypso.org>
parents:
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2 pkg_pushbutton_4pin numpins 4;