STM32 MCUs Products

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

What happens at Vbat when Vdda is not present?

In my system (STM32L471) I want to periodically measure Vbat. Can I do this through the Vbat pin if Vdda may not always be present? Obviously I turn on Vdda whenever I want to measure Vbat but are there any leakage currents or other problems in case ...

Can not load a *.bin

Posted on May 24, 2018 at 14:21I already loaded some *.bin files, perfectly compiled with a perfectly functional tool chain.But today it doesn't work anymore...If I check with STLinkUpgrade 3.2.10, it tells me that the firmware is at version V2J30M2...

STM32F429IIT6 RTC Abnormal please help me!!

Hi everyone!! I am from TaiwanI am currently working on a project that records time using STM32F429IIT6VBAT is connected to the 3.3V output of the power supply.PDR_ON is connected to VDDPower on when VDD is powered offTime will be initializedProject ...

blin.0 by Associate II
  • 325 Views
  • 2 replies
  • 0 kudos

wake Up with uart interrupt from stop mode.

Posted on February 21, 2017 at 08:22hi,i write code to wake up with uart interrupt for stm32f4 discovery board.before sleep i use deinit uart function and configure rx pin as a gpio exti, in exti handler function i use deinit pin and init uart funct...

kosan by Associate II
  • 716 Views
  • 3 replies
  • 0 kudos

Cache problem with FreeRTOS and MPU

Hello everyone,For my current project I need the FreeRTOS+MPU to work on H7. I got it somehow to work with DTCMs. However, when I try to move the complete memory allocation to the AXI SRAMs the FreeRTOS is hanging in the systick handler (there is a f...

JLima by Associate II
  • 963 Views
  • 4 replies
  • 0 kudos

How to adjust timer?

I am trying ti adjust the timer2 of the stm32f4 to 400khz​ but it does not work. Even though my calculations on Prescaler and counter are right for the frequency that i aim for, Timer is not working as it should be. By the way i am using Hal library.

MKara.17 by Associate II
  • 706 Views
  • 5 replies
  • 0 kudos