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

HI All,

Just a stupid suggestion,

It happened to me, the unused pins caused any kind of strange behaviour, until I setted them output low and shunted to gnd with a 470 ohm resistor.

In the environment there was tree actuators for the building elevator that emitted a lot of electrical noise, both trough the line and trough the air (RF).

regards
Stefano

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