About KIbra.3

KIbra.3 · 2023-07-21

I am using the RTC of the STM32L4 Discovery board and have noticed that the sub-seconds are counting down. Is there anyone with an idea on how to resolve this issue?

KIbra.3 · 2023-07-03

Can anyone please suggest a simple RFID/NFC tag to monitore & read sensor data using STM32 Nucleo board?

KIbra.3 · 2023-04-12

I am currently working on an RTOS application that includes RTC, and have observed that there is a clock drift of approx. 25 to 32 seconds after a 24-hour measurement cycle. Additionally, the drift seems to be not linear.I've measured the RTC frequen...

KIbra.3 · 2023-07-28

Thank you for providing this information. I'd like to know if there is any configuration that may force the RTC to count up instead of subtracting the value.

KIbra.3 · 2023-04-13

The issue has been resolved in HAL_RTC_Init() looses time · Issue #24 · STMicroelectronics/STM32CubeH7 · GitHub as the number of times I reset the MCU had an impact on the drift.Thanks for indicating the main cause of the problem.

KIbra.3 · 2023-04-13

I noticed a significant increase in the drift when resetting the board many times. Do you think it would be advisable for me to check the RCC_BDCR?

KIbra.3 · 2023-04-13

I am using Discovery kit with STM32L4R9AI MCU and the RTC clock source is LSE 32.768KHZ.I have to investigate whether the drift increases with reset, but the drift also appears without reset.

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RTC subseconds count down

RFID tag for monitoring sensor data

RTC drift

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