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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STM32 LOw power mode

Hi,I am trying to put my STM32 part in sleep mode.I have attached the code here.As per my understanding to go into sleep mode HAL_PWR_EnterSLEEPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);API is provided.even though I used below lines, my board...

Bs.1 by Associate II
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Does the STM32F401RB's I2S port drive current?

The STM32F401's VDD is 3.3V.The I2S Codec's VDD is 1.8V.We will add the Level chip(TXB0104) on The device driving the data I/Os of the TXB0104 device must have drive strength of at least ±2 mA.Does the STM32F401RB's I2S port drive current more than 2...

Hello, i try to use the SPI interface on STM32f3 DISCOVERYBOARD. My problem is that my clock toggles, even though the data transfer is complete. The busy flag is not yet reset either. What can that be? Ther is an Osziplot wich shows the Problem

This is my source code for the SPI configuration:static void SPI1_init(){   //GPIOs konfigurieren   //PA4 Chip select   //PA5 clk   //PA6 MISO   //PA7 MOSI   uint8_t ch;   while(SPI1->SR & SPI_SR_FTLVL); // Wait until no more data to transmit   while...

BKopp.1 by Associate II
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Resolved! Encoder code acting strangely on

So I've got some very basic code for a STM32 to read an encoder using timer 1 in encoder mode.This first routine works fine counting up and down as expected, printing CW (Clockwise) while counting up and CCW (Counter Clockwise) while counting down......

Omiks3 by Associate
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how to read values from 24c16 EEPROM IC

Hi, I am new to stm32 I am not getting how to read the values what I write to the 24c16 EEPROM IC .Plz help me how to read the values by generating the read function in stm32 f103.void write_eeprom_reg(uint16_t reg_addr, uint8_t value){ //uint8_t d[...

MS.11 by Associate III
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STM32 MCU stucks after power cut-off

Here is my process :I supply my board with an USB cable.Then I flash my stm32L4 with a segger / st-link.My firmware goes in shutdown mode.I unplug the USB cable. Thus the power is suddently off.After that, I wire a battery to my device. Thus the MCU ...

SimonF by Senior
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Regarding modbus to write negative values.

Hi, i am new to stm32 i need to write negative values (signed integers or float) in my modbus and transmit it to my PC. But i am not able to write negative values it shows some other values if i transmit negative values . can anyone help me w...

Lchal.1 by Associate II
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龙承.1 by Associate
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PWM using Timer with STM32F4

Dear ST,I am coming back to you to configure a PWM peripheral with STM32F429.I am familiar with TI DSP and I have to implement it with ST this time.Could you help me to configure TIMER1 for symmetrical PWM and trigger an interrupt to trig ADC. I ma u...