I am using S32K314 chip and I want to wake up MCU every 50ms using RTI. Currently, I am using Fast Wakeup and calling Mcu_SetMode(McuModeSettingConf_1) before entering Rest handler and then entering Standby. However, it has been found that Standby mode cannot be entered after testing. Could you please advise on how to solve this issue?
Hard to say just from the brief description.
Please refer to these RTC Wakeup examples: