1 - Switching PCB

Author: sgeorge, Posted on: 27 August 2015 14:00

Revision 3 of the PCB is all wired up and ready for testing!

This is the rough schematic per drive, using two CD4053 analog multiplexer chips, basically 3 SPDT switches, so we need two of them to switch a single C64 IEC device (which is 5 lines) to one of two busses.

Im not entirely sure how the C64 is going to behave with nothing on the bus, as all lines float, unless something pulls them up or down so.. yeah, going to be interesting when I real world test it :)

tags: C64, IEC


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