FreeCalypso > hg > fc-small-hw
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 |
| rev | line source |
|---|---|
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13
c016671a4b4a
lunakpd1 project started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 header_10pin numpins 10; |
|
c016671a4b4a
lunakpd1 project started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 pkg_pushbutton_4pin numpins 4; |
