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rtc year

rtc year is uint8_t, does anybody know how to identify year less than 2000 or more than 2000?Regards,

yang hong by • Associate III
  • 417 Views
  • 1 replies
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stm32L4: wakeup pin polarity confusing.

Hello. I try to calculate some pulses by wakeups from shutdown mode. I have 2 pins which areWKUP1, WKUP4. They are configured to wake up by rising edge. But sometimes when only 1 of them is rising, I receive 2 notifications, from both pins.The proble...

VD1 by • Associate
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  • 0 replies
  • 1 kudos

DBGMCU HRTIM_STOP does not disable PWM outputs?

I'm working on a project for a battery charger and for safety purposes I want the complementary outputs of the HRTIM to be disabled when the core is halted. On the STM32F334, setting the HRTIM_STOP bit in the DBGMCU register resulted in both the HRTI...

LDoes by • Associate II
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  • 0 replies
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how count of pulse on gpio in stm32l4 at lprun and wake up?

I use 2 board for generate pulse and count pulse.I generate pulses with 4Hz frequency by first board and print number of each pulse also when I press button pulse production stops and then after 20ms products a another pulse(I things micro in second ...

alianvari by • Associate III
  • 387 Views
  • 0 replies
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IWDG is not working

Hi,In stm32f051, iwdg is not working, I think.After enable iwdg, encounter the while(1); loop , reset is not issued.NRST pin is connected to RC reset circuit.BRPaul

paul0208 by • Associate III
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  • 4 replies
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Resolved! Need help understanding performance issue on STM32H743

I'm struggling to understand why I'm seeing a huge performance hit by slightly changing code in a loop. I narrowed down the problem to a manageable code size, and I'm hoping someone here can suggest how to investigate and resolve my issue.I'm using a...

fbar by • Senior
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  • 5 replies
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Used SPI 4 for two different interfaces

Hi All,I am using STM32F427ZIT6 MCU for one project. I connected SPI4 for two different interfaces by mistake. Pins 1,4,5 for one interface and pins 64,65,66,67 for one interface.I want both the devices working simultaneously. Is there any solution f...

DKS by • Associate II
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  • 1 replies
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