STM32 MCUs Products

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Resolved! STM32L053 LSE CSS not trigger

I tested the LSE CSS function on the Nucleo-L053, but I found that short-circuiting the crystal oscillator pins failed to trigger the CSS interrupt. The code configuration is as follows plz give a clue or the flow of LSECSSvoid SystemClock_Config(voi...

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Resolved! FDCAN H5 Memory Access Failure

I'm experiencing FDCAN Memory Access Failures on the STM32H503KBUX during CAN Rx. I am also experiencing intermittent CAN Rx message drops (every 1 in a 200), and I believe the two are related since no others errors are firing. I know the drops are h...

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dnugent by Associate II
  • 431 Views
  • 5 replies
  • 0 kudos

STM32F207ZGT6 revision

Hello,Is it possible that STM32f207ZGT6 purchased in 2025 from an official distributor have an old silicon revisionrev_id = 0x200f? 

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pioczl by Associate
  • 278 Views
  • 2 replies
  • 0 kudos

Resolved! SPI Always Reads 0

I am having a problem reading SPI data on an STM32F407 where it always returns 0x00. I actually have this working using HAL on the same hardware, however for legacy reasons I need to get this working with SPL. This application is just sending clock s...

twjudge by Associate
  • 233 Views
  • 1 replies
  • 1 kudos

Resolved! PCB design with stm32h7 series (144 pin)

According to some reference it is good to have ground polygon under IC 1. Is it okay to have ground polygon under IC? 2. Does it effects heating issue?3. I saw two hole behind the IC of nucleo 144 board. What that mean? 

Ironman by Associate II
  • 630 Views
  • 6 replies
  • 2 kudos

Resolved! STM32G030C6 Getting Very Hot

On my current board the STM32G030 is getting very hot.  I have even tried a board with no connections to the processor and all pins set to analog.  I have checked the power supply and it's 3.3V.  The board runs OK but I am worried about the processor...