STM32L4A6 LSE can't be configured in Clock configuration page

[Owenlu]

i setup the STM32L4A6RGTx ioc, and try to configure LSE, but can't becinfugred in Clock configuration page.

it was set to grey.

whether anybody knows the reason?

CUBEIDE 1.13.2

MX 6.9.2-RC4

[Imen.D]

Hello @Owenlu ,

How have you configured the LSE clock source in the Pinout and configuration tab?

Please follow this FAQ with step-by-step to properly configure LSE:

How to use STM32CubeMX to configure HSE (High-Speed External Oscillator) and LSE (Low-Speed External Oscillator)

[Owenlu]

i did follow the guideline above. the problems not fixed

LSE still can't be configured and in grey color

[Owenlu]

what is worse, the link below LSE is grey either.

How to use STM32CubeMX to configure HSE (High-Spee... - STMicroelectronics Community

[Imen.D · Accepted solution]

It works for me using latest release of CubeMx version 6.11.0. Please try with this version and keep me informed about your progress.

You must activate either RTC or LCD.