STM32 MCUs Products

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RTC and battery

Hey,If a power off occurs, I would like that the RTC function will keep alive, until Power on.As I understand, i should connect a coin battery 3.0 to VBAT pin.My questions are:when power is on, does the VBAT PIN supplies from VDD (P3V3) or from the V...

Pkats.1 by Associate II
  • 3586 Views
  • 5 replies
  • 1 kudos

STM32H755 target values for Keil uVision 5 + uLink2

Hi,I'm trying to port my project over to Keil uVision, but I'm having hard time flashing the device. It seems that my target values are incorrect.I'm looking for help to get me at least some basic settings done in the scatter file and what settings t...

TOlli by Senior
  • 1442 Views
  • 1 replies
  • 0 kudos

DMA in circular mode CNDTR issue

Hi,I am trying to recieve unknown number of bytes using DMA in circular mode. My buffer size is 2048.After reaching this size, CNDTR becomes 0 and never reinitialized again. It stays 0 always. The bytes coming after are getting lost.Has anyone faced ...

ANaga.2 by Associate II
  • 2031 Views
  • 3 replies
  • 0 kudos

STM32F407 SRAM Problem

Hi everyone,I'm working on a project that used STM32F407VE microprocessor. I'm dealing a memory problem. I have a very big struct that has all systems variable. I create a veraible with this struct and this veraible is larger than 112 kb.  When I use...

Resolved! STM32 ICs not getting programmed via DFUSE

Hi, we are using STM32H743VIT6 IC for past 3 to 4 years. but from January, none of the newly bought IC is getting programmed via DFUSE. the IC gets connected, erase cycle starts reaches upto 49% and then nothing happens. only the timer is incremented...

dv.13 by Associate II
  • 871 Views
  • 4 replies
  • 0 kudos

PROBING PINS/LOGICAL ANALYZERS

Hello ST community,I am using STM32L476RG nucleo board and I am interested in reading the boards pin states while running , especially I would like to debug the serial protocols like SPI, I2C, ...I tried with Cube Monitor but it seems, it is only use...

HABIJ.1 by Associate III
  • 694 Views
  • 4 replies
  • 0 kudos