STM32 MCUs Products

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Forum Posts

FDCAN not working on STM32H503CBT6

Hi, I'm trying to communicate two microcontrollers (STM32H503CBT6 and a NUCLEO-H503RB) via FDCAN but the STM32H503CBT6 is not sending any messages.Both have the same configuration, but the NUCLEO-H503RB can send (I have checked it with an oscilloscop...

AUJVV by Associate II
  • 378 Views
  • 7 replies
  • 1 kudos

ADC Fluctuation or Oscilation

HelloI am using NUCLEO-G474RE board to sample voltages from the the Battery management board. In the PCB board, I have opamp voltage divider to step down voltages around 24Volts to 2.5V level to be read from the STM. Please refer to the voltage divid...

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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...

ShimiaoWang_0-1755742211333.png

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
  • 365 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? 

stmf207.jpg
pioczl by Associate
  • 241 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
  • 161 Views
  • 1 replies
  • 1 kudos