stm32wle5 stop mode issue

[Rohit_Shinde_1]

Hello,

I am trying stm32le5ccu6 with SUBGHZ PINP PONG method to send data.
in that i am getting stuck at 3 things

1. rtc for time and date.

2. writing data into internal flash address

3. when trying stop2 mode, i have set up 20 sec wake up interrupt.

so device wakes up every 20 sec to send data over radio.

but after 1st wakeup the device doesnt go in stop mode stays awake. keeps the radio SMPS on. i even tried clearing the SMPS bit.

has aanyone tried it, ?

[STTwo-32]

Hello, 

For the RTC, it is reserved for the timer server oof the LoRa application and you can't use it for real date and time. For that you may use the set of functions available on the stm32_systime.h in utilities. 

For the Flash functions, you can refer to the set of FLASH examples available for the NUCLEO-WL55JC1. 

Finally, for low power modes on the STM32WL, you can refer to the chapter 9.3 of the AN5406 Rev8. 

Best Regards.

STTwo-32