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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! I2C speed mode is defined only by timing?

When I2C "Speed mode" changes in CubeMX/IDE from Standard to Fast, it seems that only the Init.Timing value changes in generated code.This value goes into TIMINGR register of the I2C .Am I missing anything or this value defines the "speed mode" entir...

Pavel A. by Evangelist III
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The external RTC clock of stm32f765igt6 chip,the waveform of the clock is very small,RTC clock is very inaccurate.This is whether the crystal oscillator or capacitor selection problem, or our single-chip RTC drive problem;

For the external RTC clock of stm32f765igt6 chip, we use a 32.768KHz crystal oscillator of Epson, which is equipped with 10PF capacitor. Some of them will make the MCU unable to start, and reduce the capacitance value to 2pF, MCU can start, but we ac...

晓杨.1 by Associate
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LPTIM CFGR WAVEPOL description

Hello,both STM32L4 and G4 reference describe in LPTIM->CFGRBit 21 WAVPOL: Waveform shape polarity       The WAVEPOL bit controls the output polarity       0: The LPTIM output reflects the compare results between LPTIM_ARR and LPTIM_CMP  registersThis...

Auto WakeUp due to floating of wakeup pins?

We are trying to build MCU application that require wakeup from standby mode using wakeup pins. MCU we are using STM32L412KB and it consists of 2 wakeup pins on PA0 and PA2.As per figure 3 we want to connect PA2 wakeup pin to USB V sense to wakeup us...

JKSah by Associate II
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  • 6 replies
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I2C slave is not working in reading and writing

I am using STM32F7508-DK kit and Using I2C as a slave whereas ESP32 is a master, By using HAL_I2C_Slave_Receive_IT and HAL_I2C_Slave_Transmit_IT API I am able to do one way communication either read or write, but in my application I required read and...