STM32 MCUs Products

How to know the MCU address for its use as an I2C slave ?

Hi guys, I would like to connect two different MCU to each other through I2C. One MCU would be the master, and the other one the slave. How can I find the I2C addresses of these devices ?I found the device ID in the reference manuals : 0x411 for STM3...

How to include OSC_IN input capacitance into oscillator Load capacitance (CL) calculation ?

Hi support team,On STM32F4 datasheet, the Cin capacitance for OSC_IN is specified. How is measured this capacitance? I supposed it's refered to the ground. Is it?Has the OSC_OUT pin the same capacitance (not seen in the datasheet)?In AN2867, Cs (stay...

This question is about the "DSFDM" function of STM32F7xx series. I want to interconnect TI's AMC1306M25 chip with the STM32F7xx's DSFDM function port to read the ADC values. Can I read the value using the DSFDM function? If possible, how should I connect

Looking for demostration software STM32H743XI Eval

I buy a STM32H743XI Eval2 now ,How to load demostration software STM32H743XI Eval2 from ST?Sorry,I know only less english.I am from china.

ADC front end design to remove high frequency noise

Hi everyoneI am working with STM32F429Zi microcontroller on a customized board. I am acquiring the signal shown below (oscilloscope screenshot) with ADC3 at a sampling rate of 300ksps. The input signal is a 10kHz sinusoidal waveform superimposed on a...

Should I set HAL_DMA_STATE_READY in circular mode?

Hi,I'm implementing a circular buffer for UART transmit via DMA on an STM32L4 device.I've got a callback that updates the read pointer and calls another HAL_UART_Transmit_DMA if it's still not equal to the write pointer.This callback is called by:HAL...

Will resetting the RTC (Real Time Clock) module frequently destroy the microcontroller due to excessive writes to non-volatile storage?

I am in the process of understanding the internals of the RTC (Real Time Clock) inside the STM32F446 microcontroller. I have already written some code and released it and now I'm afraid that the code might damage the microcontroller in the long run. ...

How to increase SPI display (ili9341) draw speed?

How to fill the screen with one color without seeing the draw pattern from top to bottom?All I want is to make screen instantly change color. I understand that drawing bitmap might be slow, but I want just one color.Is there a way to reduce display c...

STM32L081xx CPU frequency change documentation erratum?

HiIn the STM32L081 datasheet (DS10888 Rev 6: https://www.st.com/resource/en/datasheet/stm32l081cz.pdf ), on page 16, under "3.1 Low-power modes" there is this note:CPU frequency changes from initial to final must respect "fcpu initial <4*fcpu final"....