STM32WB5CGU7 MCU STOPED IN MX_RTC_Init(); FUNCTION.

[Manikandaprabhu]

Hi,

I'm using STM32WB5CGU7 MCU for our BLE related project.

STM32WB5CGU7 MCU stoped in MX_RTC_Init();  function.it means MCU holded in rtc error handeler. My cube mx version is 6.3 my rtc setting is below the picture.

I am enable LSI2 clock 32khz.the MCU stoping , the picture is given below.

Andalso I attached Scematic of the controller Section. verify it.

 

 

 

How to resolve the this issue ?

[STTwo-32]

Hello @Manikandaprabhu @and welcome to the ST Community.

First, i suggest you to use STM32CubeMX V 6.13.0, STM32CubeIDE V1.17.0 and STM32CubeWB V1.21.0. Also, I suggest you to try to run one of the BLE examples provided by ST and test your program on an STM32WB USB Dongle to verify if it is due to code or it is due to HW. Finally, you should take a look at the AN5290 to ensure that your design respect the specifictions of this application note. 

Best Regards.

STTwo-32