STM32 MCUs Products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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Resolved! STM32L1xx RTC counter

RTC used the LSE with 32768Hz oscillator and is configured for this option.While DBP bit is set RTC counter is stopped . Is it true or false?

costi by Associate III
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  • 4 replies
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STM32L4P5 SAI2-A no signal output issue

Dear all,I hope I can receive som help from you. I'm struggling since a couple of days with SAI2 block A on the mentionned MCU.I am using STM32CubeIDE and I have configured it using HAL library in master mode with MCLK output.When I try to send some ...

SaB0tAgE by Associate II
  • 496 Views
  • 5 replies
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digital potentiometer set via i2c with stm32f303ze

I am currently working on controlling a digital potentiometer using i2c with the STM32f303Ze. According to the datasheet of the DigiPot you can send different bits to make adjustments. after a lot of trial and error the voltage still didn't change.co...

MSchm.6 by Associate
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  • 1 replies
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Resolved! Sending one byte via SPI STM32G474

I need to send data one byte at a time via SPI. After transferring the byte, I set "Chip Select" from the program to state 1. I track the end of the transfer by the BSY bit in the SPI_SR register. But the microcontroller transmits two bytes, the firs...

Akoli.1 by Associate II
  • 1388 Views
  • 6 replies
  • 2 kudos

How to read IC with SMBus interface using I2C?

I want to read registers of BQ40Z50 IC. Its using SMBus for tranceive data. But I need to speak with it using I2C. I use STM32F072 -> I2C2. It doesnt support SMBus-interface, but SMB is based on I2C.I havnt posibility to connect that IC to I2C1. We c...

APoli.1 by Associate
  • 263 Views
  • 0 replies
  • 1 kudos

Main website links broken (403 error)

Hi, From the st.com website/microcontrollers most of the links from the main page result in a "403 error" when clicking on the links to the various micros (See image below)This is an example link that is currently returning a 403 error. Any idea wha...

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Flash program and erase operations and access latency

Hi,Master:​I have the following questions about flash introduction in the manual (DM00091010):​Question 1:The manual(3.2.2) says:"On the contrary, during a program/erase operation to the Flash memory, any attempt to read the Flash memory will stall t...

Lyu.1 by Associate III
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  • 0 replies
  • 0 kudos