STM32 MCUs Products

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Resolved! STM32F429 GPIO 5V tolerant IO behavior

Hello,i use at a STM32F429 the PD5 pin to drive a PNP BJT transistor to switch a sensor supply:PD5 is configured as open drain, and when the stm32 is pulling PD5 low, the transistor supplies the sensor with 5V power. This works so far.But when PD5 is...

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sk-st by Associate III
  • 2492 Views
  • 8 replies
  • 1 kudos

Resolved! STM32U575 SRAM data retention in Standby mode

 Hello,I am trying to make a program in which the micro stm32u5 is stored in ram memory some data after activating the Sleep Mode.For this I have defined in the flash file the SRAM2 memory that is supposed to be in charge of this and I have saved it ...

Resolved! STM32H753XIH6: issue with pins F1, F2, G2

Hi,I am using STM32H753XIH6 in a new design. The PCB is already manufactured, ready for the assembly. The issue is that I mistakenly designated the pins F1, F2 and G2 as NC in my schematic library model, but realized that the datasheet says they shou...

jd2 by Associate II
  • 450 Views
  • 1 replies
  • 1 kudos

STM32H7 gpio speed problem

Hello everyone,I am encountering difficulties with a project. I decided to use an STM32H7B0 microcontroller, which I had previously used in other projects, for a new application. However, I have encountered a difficulty due to the signal propagation ...

garinus by Associate II
  • 1950 Views
  • 9 replies
  • 0 kudos

Resolved! SDIO port with 2 SDCARD Chip Select

Hello, I have a STM32F411 and I am ready using the SDIO port, I would like to connect 2 SDCARD to the SDIO port and be able to switch from one to another like using a CS Chip select GPIO. Is it possible ? how would I do that ? Thanks Vincent  

vbesson by Senior
  • 544 Views
  • 1 replies
  • 0 kudos

FreeRTOS, preemption priorities and IRQ response time

Hiin my project I have enabled FreeRTOS, so the NVIC prios 0-4 are reserved for FreeRTOS.I need to generate a highly accurate 1 sec timer interrupt.Is it correct that FreeRTOS interrupts might delay my (cortex) timer intterupt handlers to be called?I...

MK..1 by Associate III
  • 1153 Views
  • 3 replies
  • 1 kudos