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utc-sd101 [2018/04/27 22:14] jacob |
utc-sd101 [2018/04/27 22:18] (current) jacob |
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==== PLPB-0070-REV-C ==== | ==== PLPB-0070-REV-C ==== | ||
The Serial Drive Kard(tm) has three half-duplex RS-485 level shifters. | The Serial Drive Kard(tm) has three half-duplex RS-485 level shifters. | ||
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- | This rev has all the features of rev-c and also has additional resistor pads to allow selection of full duplex without setting processor pins, and pull ups on the processor serial receive lines were also added to prevent spurious reads. If low voltage TTL serial is needed the board can also be configured as a pass through that connects the processor pins directly to the rails. | ||
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=== Port to Rail Pin Map === | === Port to Rail Pin Map === |