STM32 MCUs Products

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Forum Posts

STM32U083 wakeup from pin reliability

Hi all,we are designing a product based on a STM32U083. The device is battery powered (not removable) and it can remain in storage for at least 2 years. To reduce battery drain we are putting the mcu in shutdown mode to then wake him up via a button ...

stefanod by Associate
  • 169 Views
  • 1 replies
  • 0 kudos

Extremely Large Binary Size When Using DTCMRAM

Hi, I am working on a project with the STM32H730. In order to make full use of the onboard memory I have the project set up to load some objects into DTCMRAM. This works, however the binary size is huge, like 403 MB, and subsequently is crashing cube...

Screen Shot 2023-12-05 at 9.08.12 AM.png Screenshot 2023-12-05 at 1.12.44 PM.png
EPala.2 by Senior
  • 2680 Views
  • 12 replies
  • 1 kudos

Resolved! STM32L433 NRST pin status

This is a very basic question.I built a custom board using the STM32L433.After applying power (+3.3V), I checked the NRST pin state, but it did not reach the default voltage.Could you please tell me any possible causes?For reference, I have confirmed...

Resolved! MPU causes unaligned access fault

Hi,Master:MCU: STM32H743IIQuestion:I configure the MPU for RAM as follows:mpu_set_protection( 0x24000000, MPU_REGION_SIZE_512KB, MPU_REGION_NUMBER1, MPU_REGIO...

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Lyu.1 by Senior
  • 229 Views
  • 2 replies
  • 1 kudos

using Dual-Quad-SPI with OCTOSPI in STM32H5xx

Hi,I have been trying to connect PSRAM and NOR FLASH to STM32H563 nucleo board using Dual-Quad-SPI.I was able to successfully read/write to PSRAM and NOR Flash individually in single-Quad-SPI mode with base address 0x90000000. i'm not clear how the a...

shii by Associate II
  • 6545 Views
  • 21 replies
  • 4 kudos

STM32H745 ADC - PA0 Sampling Issue

Hello,On a custom-designed PCB, I am using an STM32H745IIT6 (LQFP176) MCU. I am actively using analog channels, various I/O pins, Ethernet, QSPI, and other peripherals. The code I am using was previously running on an F7 series MCU. It has been fully...

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Resolved! STM32H753 STOP Mode inconsistency.

I am using the STM32H753VI chip, it's on a proprietary PCB but the layout is very similar to the nearest NUCLEO board so I am not ready to consider that the issue.I am working on a very low power application, using CubeIDE but minimal HAL, preferring...

KP0 by Associate
  • 265 Views
  • 1 replies
  • 0 kudos

Not able to enable SYSTICK

Hi,I am working with the STM32F103RCT6. I am writing a bare metal code for delay function using SYSTICK timer. The problem I am facing is that I am not able to write to the ARM cortex registers. Below is my code for your reference - This is the stm32...

Screenshot from 2025-09-03 17-52-58.png

STM32F767 ADC value significantly larger than expected

We're using the ADC function built into the STM32F767.The problem is that when the analog signal input to the ADC is around 200mV, the digital value output from the ADC appears to be around 240-260. We're trying to obtain a stable value by collecting...

Seyoung by Associate II
  • 262 Views
  • 4 replies
  • 1 kudos