Resolved! simple 3 Button Touch Key application using TSC on STM32L431 goes wrong when power supply drops from 3.3V to approx 3.0V then recovers to 3.3V.
simple 3 Button Touch Key application using TSC on STM32L431 goes wrong when VDD power supply drops from 3.3V to approx 3.0V (just above BOR level) then recovers to 3.3V.All 3 Buttons are read back as active from this point on. Has anybody experience...