About Sarra.S

Sarra.S · 2025-01-15

Introduction In this article, we explore how to set up and debug a FreeRTOS™ project for the STM32H753 microcontroller using visual studio code (VS Code). We cover the necessary extensions, step-by-step project creation, and debugging processes, inc...

Sarra.S · 2024-12-09

Introduction When working with the STM32H5 series microcontrollers, understanding the behavior of reading unwritten One-Time Programmable (OTP) or flash high-cycle area data is crucial. This article addresses the feasibility and implications of such...

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 · 2025-02-27

Hello @JayBeavers, Could you share the memory regions defined in your DTS file and linker script?

Sarra.S · 2025-02-27

Hello @karsparskambala, The STM32H723 supports both read and write operations in memory-mapped mode, but not simultaneously. This means you cannot perform write operations while the flash is being accessed for execution in memory-mapped mode I sugge...

Sarra.S · 2025-02-25

Hello @zeboss49, This is a known behavior, This problem occurs when the interrupt handler calls HAL_TIM_IRQHandler for a timer that has not yet been initialized, leading to a HardFault due to a NULL pointer dereference. As a workaround, you can modi...

Sarra.S · 2025-02-24

Hello @nicolas, If clearing DMAT is necessary, after the end of DMA transfers, once DMAT is cleared, disable and re-enable the peripheral through the UE bit of the USART_CR1 register. This workaround is acceptable only if the peripheral is not used ...

Sarra.S · 2025-02-24

Hello @unicyclebloke, For scenario1, this is probably related to the RTC initialization sequence, the sequence should be similar to: HAL_PWR_EnableBkUpAccess(); // Enable access to the backup domain __HAL_RCC_BKP_CLK_ENABLE(); // Enable the backu...

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Using VS Code for FreeRTOS™ application debugging

Handling ECC errors in STM32H5 series: Reading unwritten OTP and flash data area

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

Re: Using STM32G4 with Zephyr and USB Networking

Re: STM32H7 Flash write in XIP mode using Zephyr

Re: CubeIDE issue with timers

Re: STM32U575: overconsumption in stop2 with LPUART DMAT set

Re: RTC resets or stalls even with backup battery