About Sarra.S

Sarra.S · 2024-11-21

Introduction The real-time clock (RTC) can be used as a source to periodically wake-up the microcontroller, perform necessary tasks, and then return to low-power mode. Furthermore, the RTC can be used to calculate the elapsed time while the microco...

Sarra.S · 2024-11-21

Introduction When working with the STM32U5 microcontroller, you may encounter issues where the low-power timer (LPTIM) fails to wake the device from stop 2 mode. This article provides insights on what might cause the issues. 1. Using LPTIM2 instanc...

Sarra.S · 2024-10-16

Introduction This article provides a step-by-step guide on configuring the GPDMA linked list in STM32CubeMX. It does not cover the legacy standard DMA approach, which is described in the article "How to configure the GPDMA." 1. Software prerequisite...

Sarra.S · 2024-09-18

Introduction The IWDG (Independent Watchdog) offers the possibility to exit from stop modes in STM32U5. The wakeup from stop with interrupt is supported in Stop 0, Stop 1, Stop 2, and Stop 3 modes for STM32U535/545/59x/5Ax/5Fx/5Gx as described in t...

Sarra.S · 2024-08-07

Introduction Input capture is one of the advanced timer features available on the STM32 microcontrollers. This article guides you through the theoretical aspects of input capture, provide a practical example, and discuss troubleshooting common issu...

Sarra.S · 2024-11-27

Hello @Embedded_Engi_2, >>assuming this is the correct pin for pulse input yes it is. there is a similar example in the provided CubeFW named LPTIM_PulseCounter: STM32CubeWL/Projects/NUCLEO-WL55JC/Examples/LPTIM/LPTIM_PulseCounter at main · STMicr...

Sarra.S · 2024-11-27

Hello @shwetapal02, Welcome to ST Community, Please check this bit in the RCC_APB1SMENR1 register

Sarra.S · 2024-11-26

Hello @lanwailan, welcome to the ST Community! Could you please ask your question with a detailed description in a separate thread? This will help keep this thread clear and organized. I would be more than happy to support you with your query. Than...

Sarra.S · 2024-11-26

I think this has to do with the prescaler update being buffered and synchronized with the timer's update event, so, it avoids the immediate glitches that can occur when directly updating the ARR register. I still believe that the best way to deal wit...

Sarra.S · 2024-11-26

Yes, the STM32H523VCT6 chip, which has 256 Kbytes of memory, supports bank swapping as indicated in the provided table from reference manual.

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How to use the RTC in STM32 microcontrollers for periodic wake-up and elapsed time calculation

Troubleshooting waking up from stop mode issues with LPTIM in STM32U5

How to configure the linked list mode in STM32CubeMX

IWDG early wakeup interrupt in Stop modes for STM32U5

How to use the input capture feature

Re: Issue with LPTIM1 in Low Power Mode for Pulse Counting and Interrupt Triggering on STM32WL55JC16

Re: Watchdog functionality in Sleep mode for STM32U535CET microcontroller

Re: HAL_Delay() --> SysTick_Handler never be called

Re: Strange issue with timer pwm in dma mode

Re: Is bank swap of stm32h523VCT6 possible?