STM32 MCUs Products

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DCMI/GPDMA on stm32u575

Hi, there; I am migrating the DCMI from stm32h743 to stm32u575, on the stm32h743 chip, I can make the dcmi work perfectly, but on the stm32u575 chip, I cannot make the DCMI work, neither the GPDMA for DCMI. Anyone met the same issues? The codes are g...

CCao.1 by Associate II
  • 139 Views
  • 8 replies
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Nucleo-H563ZI can't start when powering through usbuser

When I use usbuser to power the Nucleo-H563ZI board, I have add jumper in the usbuser at JP2.Then ld5 and ld7 light up, but the mcu firmware doesn't start properly. I need to add jumper in the CHGR at JP2 then the mcu firmware can start. According to...

kehan_0-1744685170513.png
kehan by Associate
  • 98 Views
  • 2 replies
  • 0 kudos

EEPROM EMULATION Reads fail with Os optimization

Hello,I am running into a weird behavior where EE_ReadVariable32bits call in EEPROM EMULATION library fails when optimization is turned on with Os setting. With Os setting it works only once after full chip erase and fails to read (resets) after any ...

nc87 by Associate
  • 188 Views
  • 5 replies
  • 1 kudos

STM32U545 Execution Speed Slower Than Expected

Software Environment:Windows platformConfigured using STM32CubeMXCompiled with STM32CubeIDEHardware Platform:NUCLEO-U545RE-QMCU: STM32U545 (Cortex-M33, ARMv8-M)Test Objective:We initially noticed slow SPI performance (CS low to CS high) and decided t...

xiangpu2001_0-1741297902502.png xiangpu2001_1-1741297902504.png xiangpu2001_2-1741297902505.png

DMA issue stop1

For my project I am using the LPUART on an STM32U545 and 585, currently I am using the normal GPDMA and this works like a charm in normal run mode. However I want to be in STOP1 and receive UART communication. As per the reference manual the GPDMA is...

mve_0-1744118025997.png mve_1-1744118043326.png
mve by Associate
  • 127 Views
  • 1 replies
  • 2 kudos

memset() execution slower at some addresses

Hello,After some investigation was found that memset has different behavior executed from different places in flash. Data and instruction cache are off! Micro used is stm32h743xi.Function is called with following arguments --> memset(dummy, 0, 64)Its...

DApo.1 by Associate II
  • 2588 Views
  • 13 replies
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STM32 MCUs: load data to RAM and boot from there?

Hi,I'm aware of the BOOT0 pin which is available on most STM32 MCUs and allows to select the device being booted from Flash.Now my problem is, once shipped to an end user, this flash can't be updated easily. So it would be better to have a more simpl...

HMüll.4 by Associate III
  • 144 Views
  • 5 replies
  • 1 kudos