I'm trying to use Range 2 mode in my custom STM32WB55 board to reduce power consumption in my board.
I found the protocol that switchs Range 1 to Range 2 mode in RM0434 document.
The basic protocol is like below and I found that three register should be changed to use Range 2 mode, which is RCC clock control, Flash ACR, and PWR control register (+PWR status register).
So, my question is how to change these registers and is there any example for change these or CubeMX to help change these value?
In addtion, I tried to change RCC clock using CubeMX but HCLK2 cannot be 16 MHz. Why?
Then, I cannot understand what this slide means in range 2.
