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

Use of interrupt, STM32F407, with PE4, falling edge trigger

I would like to respond to the falling edge of a square wave that is of 50% duty cycle, running at 1us pulses (500kHz). This signal comes from my LA2016 logic analyzer (has PWM outputs) and is fed into PE4 of my STM32 discovery board (STM32F407VG MCU...

JCorl.1 by Senior
  • 1328 Views
  • 6 replies
  • 0 kudos

Resolved! In what document can I find a table as to what peripherals are directed to which I/O pins? Am am currently working on the STM32446RE but have not found it for other chips either.

For instance What pins can UART1_TX come out on? Or what peripherals are attached to PA5?I would think there was a table somewhere. I have looked in the RM0390 Reference manual but they say Alternate Function 0 - 15 but do not say what the alternate ...

Detecting current ADC channel in Analog Watchdog Callback

Hi there, this is a question referring to one old post, as I do not know if any solution was found for it or if anything changed after these years:https://community.st.com/s/question/0D50X00009XkY1mSAF/detecting-current-channel-in-adc-interrupt-callb...

EGott.1 by Associate
  • 505 Views
  • 0 replies
  • 0 kudos

STM32H747 dual core read/write to the same SRAM behave strangely

Hi,I am playing with STM32H747 dual core. I used the example code in DISCO. I am able to bring up the two cores and light up the LEDs from both cores without problem. HSEM also works fine.Now I am trying to write data to SRAM (0x10000000) from one co...

IYah by Associate II
  • 1227 Views
  • 2 replies
  • 0 kudos

GPIO output voltage

Hi,I would like to design a debug LEDs for UART/I2C communication (STM32F103), the purpose is just to see wether the communication is working or not, through a LED, here is my schematic, My questions are : 1) what is exactly the output voltage on Tx ...

0693W000008GU3TQAW.png
SIDRI.1 by Associate III
  • 1475 Views
  • 4 replies
  • 0 kudos

How do I cascade the output of TIM1 into HRTIM count?

I need to use the HRTIM for it's 10 phase synced outputs, but at a lower speed than what pre-scale and period can cover.I have TIM1 producing the base waveform I want, and now I need HRTIM counts to be based on that, instead of the CPU clock. I found...

Aqwer.1 by Associate II
  • 965 Views
  • 3 replies
  • 0 kudos

STM32F7 QSPI wrong read data

Hello!I am going to use stm32f722vc MCU and QSPI in my design. Before designing PCB I research QSPI on available hardware: board with stm32f722vc MCU installed and all GPIOs available on headers. I am trying to execute indirect read mode to fetch GPI...

0693W000004KMtsQAG.jpg
EvgenS Po by Associate II
  • 1805 Views
  • 3 replies
  • 0 kudos