STM32 MCUs Products

RTC and Alarm subsecond mask

Dear,I want to use an Alarm A in RTC mode. But have some trouble with it.1) I use LSI 37000 Hz2) for 1 Hz I selected PREDIV_S=7399 and PREDIV_A=4It means that my Granulanity is 1/(7399+1)When I want to wakeup for example in 100 ms.1) I read actual ...

STM32L051... How to use ADC as simple as possible to measure VREFINT ?

My application is in STOP Mode the most of the time and is powered by a CR2430 battery. When woken up, I have to send quickly an alarm through a RF chip (for about 5ms) and at the end of transmission, I would like to calculate the battery level. For ...

I want to fetch the USB device details connected to STM32F407 Discovery board.

Hello all,I am working with CDC configuration of USB in FS mode on STM32f407 discovery board.I connected the mobile via OTG connector.I can successfully transmit the data to virtual port and can fetch the board VID and now i want to fetch the inform...

sht10 interface with stm32l1 nucleo board not able to read sensor

Hi I am working on sht10 with stm32L152RE nucleo board I tried different pins but code is not working I success fully tested sensor on STM8 controller. Please have look and suggest the error in software

Ethernet driver in STM32Cube did not implement PTP interface

I'm a developer of the open source system zephyr, I need to implement PTP in Ethernet, but I found that stm32f4xx_hal_eth of STM32Cube did not implement PTP interface. Why not add this part of implementation,I request to implement the PTP interface i...

STM32F042: External clock and clock output

As described before (https://community.st.com/s/question/0D50X00009sWdDqSAK/stm32f042-bootloader-activation) I want to use 2 STM32F042 as CAN controller. So far I planned to use the internal HSI RC oscillator, but a +-5% tolerance seems critical for ...

Are there any microcontrollers in the STM32F4xx series that support the NSS pulse mode in their SPI controllers?

../Inc/main.h(58): error: #5: cannot open source input file "stm32h7xx_nucleo_144.h": No such file or directory

Hi,I use stm32h743ZI nucleo .cubemx and keil.I created c and h files in a new folder.I'm getting the error in this way when I call the h file that I just created in main.../Inc/main.h(58): error: #5: cannot open source input file "stm32h7xx_nucleo_14...

HMAC digest doesn't match expected (STM3221G-EVAL)

I just purchased the STM3221G-EVAL board and I am working through some examples. I am currently using running the HMAC example and it runs fine. However I am unable to get the HMAC to match the test vectors provided in the specification (https://tool...