I have a set of BLE characteristics set up, and working ok. The project uses FreeRTOS. I want to be able to have the stm32wba65 sleep in low power, then wake up at a specific time of day. After wakeup,I have a 5-second RTOS timer to take a series of measurements. Once all measurements are taken, the stm32 should sleep again. I want to set the time of day once from a PC over BLE, then disconnect and have the stm32 go to sleep. I have a 32kHz oscillator providing LSE, which seems to be running ok, as the startup code does not hang waiting for LSE to start. If I try to put the RTC into "Free running BCD calendar and binary mode" in the .ioc file then the RTOS timer no longer fires.
To summarise, I need:
BLE
low power sleep
wake at specific time of day
RTOS timers once awake.
Does anyone have an example of this type of scheme?
