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

I think you're going to want to code an ISR that can handle the display multiplexing and OW code.  1-Wire is very time-specific, so you can't use the built-in 1-Wire routines while you have an interrupt in play.  A possible solution is to move to a synchronous temperature sensor (e.g. DS1307) which won't be bothered by the ISR.

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