STM32 MCUs Products

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Resolved! STM32H733 data cache initialization issue

Hello,I am using a STM32H733VGT on a custom design board. On a fresh project in CubeMX, I tried to activate data cache but the autogenerated code crashes at  SCB_EnableDCache(); . (nothing has been activated on the CubeMX, just the external crystal a...

amirshn by Associate III
  • 945 Views
  • 9 replies
  • 1 kudos

Resolved! TIMER - Overflow event - Must reset CNT?

Hi There,I have setup TIMER4 on STM32G484 device for overflow event and enabled interrupt for events. Everything works fine and as expected with correct fire time if I RESET the CNT register in the ISR. However, if I do not, it seems to do some level...

Skeeb by Associate II
  • 499 Views
  • 5 replies
  • 0 kudos

STM32f407 boot mode

Hi I am using STM32F407 DISCOVERY BOARD and I am able to make the board change to boot mode using a another controller.After boot mode change over I need to program the memory of STM32F407 DISCOVERY BOARD by UART communication.Here I am unable to get...

AKHIL6 by Associate II
  • 346 Views
  • 2 replies
  • 0 kudos

STM32H523 QUADSPI W25Q64 External Loader

Hi, I'm trying to do an external loader according ST's MOOC and this forum https://community.st.com/t5/stm32-mcus-products/stm32h5-external-loader/td-p/601134.My code pass on all ST's tests of memory, but when I generate a stldr it does not read on c...

MMira.4 by Associate II
  • 790 Views
  • 7 replies
  • 0 kudos

Resolved! How to debug a hard fault exception for STM32?

I am currently using stm32f407 with FreeRTOS as operating system in MDK IDE. Recently, When I added a new function ( The new function is ospf routing algorithm, and it is very complex and involves many files ) to my project, I began to encounter hard...

yanhc by Associate III
  • 9423 Views
  • 13 replies
  • 0 kudos

Resolved! Bootloader startup time on STM32L4R

This is mostly a post to help people who try to google this later since I couldn't find anything. If you look at AN2606 table 197, it lists the minimum startup time for the bootloader on a bunch of different STM32 microcontrollers. For some reason, j...

Resolved! STM32L47 Bootloader v9.x SPI bug

Recently, I have been working on a project that intends to utilize the v9.x bootloader on an STM32L471VGT6 through the SPI 2 port. When utilizing the write memory command, I would find that the STM32L4 would occasionally have 0xFFFFFFFFFFFFFFFF writt...

chaup by Associate II
  • 1080 Views
  • 2 replies
  • 1 kudos

Resolved! Using SPI on STM32H7 in mixed mode, normal and DMA.

I am working on a STM32H723 microcontroller and I am trying to use and SPI communication in mixed mode, i.e. normal and DMA.The reason I need this is because I have a third party software stack for a device that is set up in a certain way, and it cyc...

ioncasu by Associate II
  • 739 Views
  • 5 replies
  • 2 kudos