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

Electronegativity,

Are you using TRUE or INVERTED serial?

If you are using TRUE (i.e. the idle state is a logic LOW) then you will need to use 10k pull DOWN (to ground) resistors.

If you are using INVERTED (i.e. the idle state is a logic HIGH) then you will need to use 10k pull UP (to VDD) resistors.

You will also have to initialize your Serial PIN to be initially HIGH or LOW depending.

Let us know how you get on,

James

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