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

Interrupts Management

I am trying to understand the priorities, subpriorities and priority grouping in my stm32f407-Discovery.I would like to have 3 external LEDS (LD_A, LD_B, LD_C) and 3 interrupts (IT_A, IT_B, IT_C) with. IT_A has a highest priority, IT_C has the lowest...

Resolved! Problem with STM32H743 backup ram access with 16 Bit

We use the STM32H743BI.We have a problem with writing the Backup-RAM if the mapped variables size is not multiple of 32 Bit.According to the reference manual (rev. 7) the backup RAM is accessible in 32-bit, 16-bit or 8-bit data mode. (RM0433 Rev 7, p...

roland23 by Associate II
  • 1484 Views
  • 5 replies
  • 0 kudos

SPI Communication with DMA transfer

Hello, i'm working with the STM32F746G-DISCO development kit. I need to use 3 SPI in reiceive only master mode (each SPI have the same clock). The data comming from the SPI are clocked at 4[MHz]. I need to use DMA to transfer data from the SPI periph...

BRémy.1 by Associate
  • 875 Views
  • 3 replies
  • 0 kudos

Reading flash and sending to UART

Hello,I'm currently struggling to setup flash reading launched from a PC.I've used the example code for simple write and read with HAL from STM32 Cube SW.The example show a reading of an uint32_t after writing a uint64_t.Here is my code:Writing flash...

SSchm.5 by Associate III
  • 2025 Views
  • 4 replies
  • 0 kudos

Triggering ADC1 from TIM2 CH2 on stm32F767

Hi guys, I've searched the forum and found a handful of posts with a similar issue but the search doesn't seem to be very good for seeing previous posts... Anyway, I've got a PWM output from TIM2 CH1 (200us perioud, 25% D.C.) and I have another PWM f...

0693W000001sMM6QAM.png 0693W000001sMM1QAM.png
CDyer.1 by Senior
  • 1298 Views
  • 3 replies
  • 0 kudos

LPTIM1 vs TIM6 - low power

According to STM32L052K8 datasheet in table 39 page 72 of this document:https://www.st.com/resource/en/datasheet/stm32l052k8.pdfThose timers consume uA/MHz:Peripheral | Range 1 | Range 2 | Range 3 | Low-power sleep and runLPTIM1: 10, 8.5, 6.5, 8TIM6:...

godmode2 by Associate II
  • 1321 Views
  • 3 replies
  • 0 kudos

Pin Function Document

Hello,I'm using the NUCLEO-F722ZE EVB.In page 43 of the following document there seems to be a pinout list which specifies the signal name of each pin :https://www.st.com/resource/en/user_manual/dm00244518-stm32-nucleo144-boards-stmicroelectronics.pd...

skon.1 by Senior
  • 1182 Views
  • 4 replies
  • 0 kudos

What does the internal temperature sensor measure?

We are using an STMF4 and STMF3 in our product and are trying to see if we need to switch to the industrial variant for the extended temperature range.? Is the internal temperature sensor measuring the Die temperature, and if so is that essentially ...

PCicc.1 by Associate
  • 866 Views
  • 2 replies
  • 0 kudos