STM32 MCUs Embedded software

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filex and directory/files

Hallo, this is my code. I create a directory, and then a file in this directory. If, in another point of the code, I check if the file is present or not, I can read/write it correctly and so on. Instead, if I stop the execution of the program, when I...

IVent.1 by Senior
  • 3657 Views
  • 6 replies
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X-CUBE-CLASSB in dual core STM32H745

Hi,I am trying to install the X-CUBE-CLASSB 3.0.0 library in my custom board with the dual core STM32H745. I have put the library in the CM7 core but it only works if I debug the program. When I turn off and turn on again, the program does not work. ...

dgv by Associate
  • 1253 Views
  • 1 replies
  • 0 kudos

Resolved! Failing including CMSIS into a F334 project

Hi guysI try to iclude the CMSIS files into a project with a STM32F334. I followed this article (https://community.st.com/t5/stm32-mcus/how-to-integrate-cmsis-dsp-libraries-on-a-stm32-project/ta-p/666790 ) but failed.The first difference is, that I d...

White_Fox by Associate III
  • 2188 Views
  • 4 replies
  • 2 kudos

Resolved! HAL_UART_TxCpltCallback Issue at Higher Buadrate

Hi all,I am using UART4 in STM32F205 connected to an external device with an RS485-Transceiver (sn65hvd75).When I transmit data (HAL_UART_Transmit_IT) I set the TXEN pin high in RS485-Transceiver and when I get a callback  using HAL_UART_TxCpltCallba...

JThom.15 by Associate III
  • 4267 Views
  • 9 replies
  • 0 kudos

Custom PCB, STM32H7 and KSZ8863RLL, RMII

HiI have made a custom PCB based on STM32H723VGT MCU and KSZ8863RLL with interface RMII. I have followed the Hardware Design Guide for the KSZ8863. Including 100 Ohm impedance from RJ45 to PHY and 50 Ohm impedance from PHY to STM32. Length matching i...

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