STM32 MCUs Products

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Forum Posts

Help troubleshooting stm32g431 board

Hi. I designed a stm32 board an am trying to program it with a stm32 development board. i am having issues with programming it. This is my board design and my programming setup. I have connected the stm32f4 to my laptop to program it and the Integrat...

WhatsApp Image 2025-10-22 at 16.02.43_99bd9ff3.jpg Screenshot 2025-10-22 161018.png Screenshot 2025-10-22 160147.png aks1_0-1761233999598.png
aks1 by Associate II
  • 214 Views
  • 19 replies
  • 8 kudos

Timer PWM output with DMA on STM32H563

Hi, I'm trying to get a PWM output that changes duty cycle on each period with DMA in circular mode. I have seen other similar posts (ultimately I'd like to control a WS28 LED with 800kHz), but they are for other MCUs and everything is different in t...

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CClau.1 by Associate II
  • 46 Views
  • 3 replies
  • 0 kudos

STM32U585 ADC

Hi,I have a custom board with STM575VGT6 then we decided to make it smaller and move to STM32U585OI MCU.On the second board with new MCU, almost all peripherals works fine (DAC, UART, I2C) with almost no code changes, except new MCU defines, drivers ...

qqAnton by Senior
  • 38 Views
  • 1 replies
  • 0 kudos

NOR Flash Write-While-Erase-Suspended?

Hello,maybe this is bit off-topic, but does anybody know if it is possible to suspend an ERASE operation and write to another (previously erased) sector?I want to save a page in flash in case of a power outage and want to interrupt a probably ongoing...

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regjoe by Senior
  • 122 Views
  • 10 replies
  • 2 kudos

Resolved! Open-drain GPIO current sink limitation

I'm planning to connect 40 LED with a current of 20mA (total 800mA) to 40-gpio pins of STM32G4 device. The pins will be configured as Open-drain so the 20mA LED current of each pin will flow through an external resistor and the internal low-side NMOS...

Gaston by Senior
  • 222 Views
  • 5 replies
  • 8 kudos

STM32H7 DMA issue

HelloMy current requirement is to generate an FSK waveform with two frequencies around 3-5 MHz, a rate of about 700K, and output a square wave using PWM. The method involves switching frequencies by updating ARR and CCR using two timers—one for PWM o...