User Activity

Hi, I am using STM32F777, can you please help where i will get VIH voltage level for SPI Ports in datasheet?Please help
I wanted to use RTC Circuit for Supercap.I have designed circuit (Check Attached snapshot).but i dont get back up time? can anyone explain do we need to do any provision in controller.It seems that capacitor is discharging very fast
Kudos from