About jcjunker

jcjunker · 2025-02-09

Hello, I am seeing an issue with an STM32U5 battery powered system in the field. I use IWDG to reset the device in the occurrence of a software issue, and put the device into standby mode to sleep for periods of time before being woken up by either R...

jcjunker · 2025-02-14

An update on this. I was able to catch another device in the state that I'm describing, and I'll attach a screenshot of the debug session. In the lower left hand corner, it shows the IWDG as being disabled, but it clearly triggers an IWDG reset after...

jcjunker · 2025-02-09

I'll try adding that in. But, my understanding is that regardless, the device should still be able to enter standby mode as long as any of the enabled interrupts that are able to wake the device in standby mode aren't pending, which I've checked as w...

jcjunker · 2025-02-09

Thanks for the response. The IWDG is disabled in standby, and isn't used to wake up the device. The RTC is used to wakeup the device periodically, i.e. to post data using a modem to a server every hour or so, depending on the situation. The IWDG is u...

jcjunker · 2024-05-07

@SauravShandilya @CMYL Was there any resolution to this issue? I am having the same problem occur when using STM32CubeCLT 1.15.1 when building in Release. I see that my compiler version is also 11.3.1.Rel1. I'd like to get this resolved so that I can...

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STM32U5 Standby Mode and IWDG issue

Re: STM32U5 Standby Mode and IWDG issue

Re: STM32U5 Standby Mode and IWDG issue

Re: STM32U5 Standby Mode and IWDG issue

Re: Compilation error : internal segmentation fault with GNU Toolchain 11.3.Rel1 for STM32U5