STM32 MCUs Products

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...

Can I write to a UART Data Register if the RXNE bit is set(data has been received in the RDR but not read yet) ?

I want to use the WM8994 on the STM32F769-DISCO for 24 bit acquisition on the Line In connector. Unfortunately the BSP code is fixed at 16 bit. :-(

Has anyone done the changes necessary to switch up to 24/32 bit acquisition. It seems like its just AIF1_Control[6,5] on the WM8994 but the SAI is a complex beast and I'm not having a lot of luck. Any pointers would be greatly appreciated.

DMA HALFWORD and SAI_DATASIZE_24;

Posted on June 29, 2018 at 07:30Hi, I'm trying to use SAI_DATASIZE_24; with the Audio_playback_and_record application demo for the STM32f769i_Discovery.The demo uses DMA to copy data from the SAIx to the recorder buffer in 16bit.I tried changing the...

Resolved! Does STM32U5 series supports 1us hardware timer ?

I am looking for maximum timer resolution supported in STM32U5 series MCU's.Basically whether I can configure or use hardware timer as 100us.Any input or documentation on this would be a great help.Thanks!!

Getting elapsed time after stop mode

Hello,I am looking for help. I am using stm32L0. The problem is as follows:ST goes in stop mode for example 5 seconds. After 2 second some interrupt wakes the ST. Then I want go in stop mode for the remaining time which in this case is 3 seconds. Is ...

Resolved! SIGTRAP on ISR on "bare-metal" STM32F413ZH Nucleo-144

Hi guys, I'm a mechatronics student learning the basics of STM32s in my own time through the excellent series of guides by Vivonomicon. I'm currently learning interrupts, but my program seems to trigger a SIGTRAP fail when the interrupt fire.The code...

union type structure memory

I have some old program to migrate to stm32h7. the old program is written by 16 bit mcu. so it is easy to implement union structure and easy to copy structure from memory to another; however, in stm32h7, this is 32 bit mcu, so memory size is 32 bit, ...

Virtual EEPROM for F0

Hello,Please be patient, I am quite new to this. So, I would like to implement a virtual EEPROM for my F042k6 mcu, i saw that there is the https://www.st.com/en/embedded-software/x-cube-eeprom.html but it only seems to cover STM32G0 Series, STM32G4 S...

I'm beginner in STM32(f303re CUBE IDE) and anybody know maybe how do the implementation for sensor fs-ir02. Probably it's simple but I have no idea. How to do this with USART2 on NVIC and by simple GPIO? When is another simple way, please show me :) thx

TIM CC1 register is always zero in input capture mode.

I try to recreate this tutorial:https://deepbluembedded.com/stm32-input-capture-frequency-measurement-example-timer-input-capture-mode/I use STM32H747I-DISCO board instead. It's configured to generate 25kHz test signal. Main clock is set to 400MHz, t...