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ondrudav · 2021-03-18

Hi, I'm trying to measure the frequency of multiple signals using the STM32L1515RC. Using the External clock mode 1, I need one timer per signal. My question is if TIM10 and TIM11 support this mode.The TIM10 and TIM11 block diagrams (Figure 131, Figu...

ondrudav · 2019-07-26

HiTimekeeping in my application is pretty standard: 32 bit unsigned integers which store milliseconds since boot, overflowing every 49 days.To reduce power consumption, i need a way to wake up from stop mode at a set time in ms. But my device has nei...

ondrudav · 2019-07-28

I already do, in the next version of my design, but i want to work out any low power issues before finishing the respin.

ondrudav · 2019-07-28

Yes, but how can i wake up from stop mode with ms accuracy? Waking up on the whole second and then waiting the rest in some higher power mode would work, but there should be a better way.

ondrudav · 2019-07-28

With a hardware timer running, i can only go down to low power sleep mode, which consumes more power than stop mode, but it would only be active for at most 1 s. Which I guess it isn't that bad. Any thoughts on speeding up the RTC 'second'?

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STM32L1 TIM10/11 trigger selection, reference manual is inconsistent

Subsecond resolution alarm on a RTC without subseconds (STM32L152 Cat.1)

Re: Subsecond resolution alarm on a RTC without subseconds (STM32L152 Cat.1)

Re: Subsecond resolution alarm on a RTC without subseconds (STM32L152 Cat.1)

Re: Subsecond resolution alarm on a RTC without subseconds (STM32L152 Cat.1)