STM32 MCUs Products

By B-L4S5I-IOT01A keeps restarting / disconnecting from my STLink. What would be the cause and how can I overcome this so that I can download my app?

In STM32F429 MCU - ADC , how to configure internal voltage reference?

I have configure already Vref+ & Vref-.

How to sample MEMS microphone pcm data with NUCLEO-H743ZI2?

Hi ST experts,I tried to read out MIC( Infineon-IM69D120) data with NUCLEO-H743ZI2 SAI PDM interface as below but no lucky, the expected audio freq is 16KHz, attached are the src code and pcm data log  in a quiet environment, could you help to check ...

Good afternoon everyone. Does anyone knows if the SD Card works on STM32F103ZET6 in 4-bit mode.

Auto-Reload Register = 0

Good day, I'm using the stm32f103c8 on the bluepill board and I intend on running timer 2 (clocked at 72MHz) every cycle. Now with this clock, a cycle is 13.9ns. To make this happen, should the Auto-Reload (ARR) register of timer 2 be loaded with 0 s...

Changed from STM32L476xx to STM32L4A6xG and the Serial communication clock has 7% of difference at 115.2kbaud rate.

I have firmware file for the STM32L476xx and in the application they decided to use the STM32L4A6xG instead for future upgrades.I tried to load the original firmware and it seems that the application is not running properly anymore. All initializatio...

STM32L4S9 SDMMC timeout handling

Hello,I am working with the SDMMC peripheral on a STM32L4S9 chip to interface with an SD card on a custom board using the HAL SD card driver. I am performing reads and writes using `HAL_SD_WriteBlocks` and `HAL_SD_ReadBlocks`. Everything is working w...

Typo IUFREMAP in RM0440 and other

Instead of IUFREMAP there should be UIFREMAP.Seen multiple times in multiple RM with the given bit.JW

Setting SPI1 to the highest clock frequency

Hello, I just wanted to ask what's the best way to set the SPI and system clock in STM32L496 to have at least 40MHz frequency for the SPI1. Thank you in advance