Difference between revisions of "Minimig Shared RS232"

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m (Minimig Shared rs232 moved to Minimig Shared RS232)
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Revision as of 17:27, 27 July 2007

By wiring the MCU (PIC18) and the fpga via an AND gate one can eliminate the jumper currently present on the rs232 TxD.

Default voltage level is negative (-3 .. -25) = Logical "1"

Truth table: 00 0 01 0 10 0 11 1