In SX Microcontrollers, SX/B Compiler and SX-Key Tool, SteveW wrote:

>I am trying to set up a 3-wire asynchronous serial communication
>The three wires are ready to send, clear to send, and serial data.

Hmm, an odd strategy, but fair enough. 
However, can you confirm that there's a 4th wire for ground, please?
Also, it's a bit tricky to work out what you've actually built. A schematic would probably help us help you. Annotate it to show what you think should be happening, if you like.

Steve

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