I have two P8Xs but only one Prop Plug, so I would like to be able to manually switch between sending the 4-bit programmer signal to Prop A or Prop B with a physical switch which will switch an "enable" signal between outputting to A vs B.
I should(?) be able to accomplish my goal by using two 4-bit tri-state buffers to the output data bus, with the switch's output serving as the enable signal driver.
Two of these 74HC126s
Two of these, with the 4 output enable pins connected to one pole of a physical switch which pulls them high (with a pull down resistor to ground for the OFF position), in my mind does what I'm trying to accomplish.
Is this solution over-engineered? Is there a more obvious way to do this? Thanks!