Code Example for Murata CMWX1ZZABZ-078 with Stop Mode and RTC Wakeup
I have the development board, B-L072-LRWAN1 with the CMWX1ZZABZ-078 module by Murtata on it. This module has an 32.768KHZ crystal on it which will be used for keep the RTC. I would like to implement a wakeup timer using this crystal to wakeup every 250MS to perform a check action, then put it back into stop mode, repeat. I would like advice on how this can be performed and what is required since I cannot find any code examples implementing this wakeup timer with the RTC crystal. I am using the Keil IDE to work with module, but have gotten the debugger to work with STM32CubeIDE. Any help would be appreciated. Thanks!