STM32 MCUs Products

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Resolved! STM32H7 SPI 32BIT CRC Confusion

Hello, I am having an issue implementing a 32 bit CRC 0x04CDB117I am quite confused by the documentation on how to set the a 32 bit CRCI don't understand section 53.5.3 on the most significant bit in in CRCPOLY must be larger than the data size.I don...

kip18 by Associate II
  • 271 Views
  • 5 replies
  • 1 kudos

STM32L071 draw more current than expected

Hello,  I'm using a STM32L071KZT6 on a custom PCB and it was working fine, until after some programming iterations, it suddendly started drawing more current than expected. It reached 220mA to power with 3.3V. This happened twice, in two different mc...

FranDias by Associate
  • 150 Views
  • 1 replies
  • 0 kudos

Resolved! What is the DBATTEN Setting in UCPD_CR register

The DBATTEN setting in the UCPD_CR register claims the following But as far as I know, the dead battery functionality is always present. It would have to be to work unless this is stored in NVM.Maybe this DBATTEN is some other Rd value? Maybe the ANA...

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Carl_G by Senior III
  • 469 Views
  • 6 replies
  • 2 kudos

Resolved! STM32 GPIO NMOS

What is the maximum current that the STM32 GPIO can withstand when set to open-drain mode and the NMOS is on without getting damaged?

jacklin by Associate II
  • 318 Views
  • 6 replies
  • 8 kudos

Resolved! STM32L412RB - Programming

Hi, Is there an option to program the STM32L412RB with DFU / Serial interface? I was programming the STM32F407 with DFU and Serial before and now I want to use the STM32L412RB and program it the same way. I can't find any information on the BOOT1 pin...

ronnabh by Associate II
  • 273 Views
  • 4 replies
  • 4 kudos

Cannot wake-up from STOP mode with LPTIM

Greetings, I am having trouble in waking up from Stop mode in STM32U585RIT6 LQFP64 MCU. So I saw the following posts: https://community.st.com/t5/stm32-mcus/troubleshooting-waking-up-from-stop-mode-issues-with-lptim-in/ta-p/745343https://community.st...

Resolved! Question about the speculative accesses

Following this post describing how to disable speculative accesses on external memories range (0x6000 0000 to 0xDFFF FFFF) on Cortex®-M7 processors, I'm wondering if such mechanism should be done to:- memory regions marked as reserved:Source - DTCM /...

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Tahm_A by Associate II
  • 206 Views
  • 1 replies
  • 0 kudos