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STM32WL33 - Running MRSUBG using LSI instead of LSE

Lambda
Associate

‎2025-01-08 09:20 AM

On the WL33 range of boards is it possible to utilise the MRSUBG without turning on the LSE within the RCC section and instead have the MRSUBG utilise the LSI?

I have found that if you leave the LSE enabled in RCC but set the clock configuration to use the LSI the program still functions but I wonder if it's still utilising the LSE under the hood.

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STTwo-32
ST Employee

‎2025-01-30 10:17 AM

Have you tried to disable completely the LSE and test it. If it works, then it is not using the LSE.

Best Regards.

STTwo-32 

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