STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

STm32L496 IAP and BLE

Hi !I've been trying to update my STM32L496 firmware over BLE.Our bootloader use Ymodem to transfer files (as it's explained in the Application note). I have connected the UART of my BLE chip with the UART of the STM32). I can send the file (only fro...

FGuil by Associate
  • 706 Views
  • 1 replies
  • 1 kudos

Resolved! ADC overrun error. Multiple DMA usage.

Hi,I am using a NUCLEO F334 development board.I am using the ADC with the DMA. I developed that feature and tested and everything looked alright. I have been developing some more over that and I see that after startup the values are correct but after...

0693W000000WxBRQA0.png 0693W000000WxBHQA0.png
mur by Associate III
  • 6415 Views
  • 10 replies
  • 0 kudos

Ethernet STM32H7 DMA

Hi everybody,Currently we have a weird thing with Ethernet on STM32H7.Everything work fine if disable cache globally.When enable cache, work fine. We can send/receive few hundreds MB or keep ping /t from PC few days, no error. So we believe we config...

Dat Tran by Senior II
  • 763 Views
  • 3 replies
  • 0 kudos

MAY i use Interrupt handler multiple times ?

In the follwoing code i would like to use same interrupt multiple times in order to blink the 4 leds different time. i am storing the data in unint8_t ABB, i expect that each time i press the button the value in ABB is incremented but practically n...

ALE1 by Associate II
  • 1343 Views
  • 5 replies
  • 0 kudos

Resolved! STM32L052K8 custom board does not run while the same board for STM32F051K8 works (same pinout and peripherals on the PCB)

Updated Question:I have a custom PCB board with L052K8 and F051K8 with the same peripherals and correct hardware design for each (F051K8 has a VSSA for the ADC and different bypass cap), but only the L051K8 is able to program its firmware and reset c...

JLee.161 by Associate III
  • 1462 Views
  • 8 replies
  • 0 kudos

How to change the frequency of the PWM using potentiometer

Hello guys good day to you. May I ask you if you can share your experience on changing the frequency of a PWM using a pot. I am using a small board with the STM32F103C8 MCU. I've set TIM2 _CH1 of PA0 as output. I connected a potentiometer to PA...

RSy.1 by Associate III
  • 1589 Views
  • 4 replies
  • 0 kudos

stm32l4 not leaving dfu mode and starting program.

So for this question, I'm using stm32l4 device. It is a Cortex M4. I've been developing with stmcubemx and Kiel compiler.I have a program that can jump to the stm32 provided dfu mode. That works great. I can update the code using DfuSe Demo.I've run ...

VBarb.1 by Associate II
  • 1888 Views
  • 6 replies
  • 0 kudos

I2C Master - strange behaviour (Busy, HAL error)

Hello, I have a problem with the I2C communication on my STM32F405. The F4 is running in master mode and has 3 identical sensor connected to I2C1, I2C2 and I2C3. I want to read from the sensors "parallel" 3 bytes with the HAL_I2C_Master_Receive_IT fu...

KR51K by Associate III
  • 1524 Views
  • 4 replies
  • 0 kudos

Resolved! STM32F4 RTC Wake-up Timer

I am trying to go in standby and wake up after few seconds repeatedly with using RTC wake-up timer but I am having problem after second sleep. It goes sleep, wakes up and then goes sleep again like I expected but after that point(after second sleep) ...

SSone.1 by Associate III
  • 847 Views
  • 1 replies
  • 0 kudos