About MMeie.3

MMeie.3 · 2023-05-25

Hi We use an STM32L452 with an external LSE (32.786 kHz) oscillator. We would like to use PC13 as a GPIO input with interrupt. In the errata sheet for the STM32L452 (ES0388 Rev9) I find the following entry:“2.2.12 PC13 signal transitions disturb LSED...

MMeie.3 · 2023-07-13

In case somebody else is interested, I got feedback from ST support about this:1) “2.2.12 PC13 signal transitions disturb LSE", What does “disturbs” mean for the LSEST support: When PC13 is toggled, the LSE clock frequency may lose a few pulses.2) Wh...

MMeie.3 · 2023-05-30

The description in the errata of the STM32F407 is much clearer to me. I also notice, that the errata entry was only added in February 2023. So, I wonder what is with older designs out there...

MMeie.3 · 2023-05-30

Not sure, if this Issue also applies to the STM32F103. On the first look I could not see any entry in the Errata sheet.

User statistics

User Activity

STM32L452 LSE & PC13 Errata

Re: STM32L452 LSE & PC13 Errata

Re: STM32L452 LSE & PC13 Errata

Re: STM32L452 LSE & PC13 Errata