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ChrisK1 · 2025-02-05

Hi I'm debugging the mentioned issue since quite a while.We use CubeMX to generate the configuration and working with the provided HAL libraries to access a 4GB SD-Card connected through the SDMMC adaptor over 4-bit SDIO bus.HAL libraries version is ...

ChrisK1 · 2023-11-17

In my project it can happen, that the LSE gets blocked due to a CSS failure detection after repowering. I found this good article on the ST community which maches alomost with my case: https://community.st.com/t5/stm32-mcus-products/lse-fault-recover...

ChrisK1 · 2018-11-30

I'm in doubt about the transconductance parameter of the HSE oscillator in STM32L443.To select an appropriate cristal I studied AN2867.If the datasheet of STM32L443 which notes "Gm = 1.5mA/V" refers to gm the transconductance of the passive elements ...

ChrisK1 · 2023-09-25

Thank you for explaining the complicated topic and braking it down to the necessery timing parameters. Very helpful!

ChrisK1 · 2018-11-30

I received this answer from the application team by e-mail:First:Gm=1.5mA/V means the max. allowed transconductance of the crystal which corresponds to Gm_crit_max in the AN2867 document.Second:“The Cs use a little assumption which more depends on la...

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To wich parameter refers HSE oscillator characteristic Gm in STM32L443 datasheet on page 123? Does it refer to AN2867 parameter gm or to Gm_crit_max?

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Re: To wich parameter refers HSE oscillator characteristic Gm in STM32L443 datasheet on page 123? Does it refer to AN2867 parameter gm or to Gm_crit_max?