STM32 MCUs Products

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Resolved! stm32f1 bootloader write memory command

Hello,i'm trying to implement firmware upgrade in my Windows application via USART for stm32f103 following AN3155. My issue is with the Write Command. More specifically:- if i send 1 byte of user data at time it works, it's just slow cause i have to ...

omaroski by Associate II
  • 161 Views
  • 3 replies
  • 1 kudos

Timing of Hardware Semaphore

We're using a STM32H747IGT6 and using hardware semaphores to coordinate between the two cores.On the CM4 I've set up TIMER3 to run at full blast:  LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM3); LL_TIM_SetPrescaler(TIM3, 0); // Count at sy...

BOOT0 on STM32U083

I have a custom board with an STM32U083KCU6 MCU - see schematics belowVBAT = +3.6VI have 2 boards:1. board: I flashed it via SWD but forgot to enable it in STM32CubeMX, which means that I'm not able to flash it again via SWD2. Board: This time, I rem...

MagnusErler_0-1750599014527.png

On STM32H747IGT6, HSEM channel 0 is reserved?

Application note AN5361 "Setting up with ST-LINK GDB server" says "Set the Cortex®-M7 core running so that the HSEM semaphore is released and Cortex®-M4 wakes up from Stop mode" and this post implies that it's "HSEM 0" which I'm assuming is HSEM chan...

Resolved! STM32H755 CM7 Reset_Handler Stuck at 'ldr sp, =_estack'

Hello everyone,I am currently working on a project using the STM32H755 microcontroller, and I am facing an issue with the program getting stuck in the `Reset_Handler` during debugging. Specifically, the code halts at the instruction `ldr sp, =_estack...

durna by Associate III
  • 403 Views
  • 10 replies
  • 0 kudos

Resolved! STM32U599 OC Tim DMA failed start or do some toggle

We try generate signal defined by toggle table , but command do nothink. (except ARR toggles) if (HAL_TIM_OC_Start_DMA(&htim2, TIM_CHANNEL_4, &tim_values[0], idx) != HAL_OK) { Error_Handler(); }have 1.7.0 U5 firmware some known issue ? O...

MM..1 by Chief III
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  • 4 replies
  • 0 kudos

STM32U5 Serial Bootloader AN3155 Discrepancy

In looking at AN3155, USART protocol used in the STM32 bootloader, the following diagram describes the MCU's write protect command sequence from the device side:There is a comment at the bottom which indicates that only certain F and L series chips p...

dsurrett_1-1750720697920.png
dsurrett by Associate II
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  • 1 replies
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MCU Boot Issue - STM32L0

We are using the STM32L071KZU6 in one of our designs and are facing an issue with bootloader communication over I2C. Specifically, some boards fail to enter the bootloader or respond on the I2C bus, while others function normally. Below are the detai...