STM32 MCUs Products

ADC measurements in sleep

Hello everyone,For one of our commercial product we are using STM32F0 as mcu, and IAR as compiler. Since the device is battery powered, it sleeps for 1 sec then wakes up and does some adc measurements and sleeps for next 1 sec. Instead of doing measu...

Microcontroller shutdown when press reset

Hi all, I am developing hmi using stm32f746 microcontroller,it's running continuesly whenever I press reset button the total system is turned off and unable to turn it on even if I do power reset.the reset pin is common for microcontroller and LAN dr...

STM32L476G Discovery Board VBUS Voltage on PC11

Hello,I have an question concerning the VBUS Pin which is connected to the STM32L476G Discovery (PIN PC11) directly. Why isn't 5V an problem for the PC11 pin? I thougt 5V would cause overvoltage?

STM32L4+ issues when using UART with interrupts

Dear community,I am using the Nucleo-L4R5ZI board with STM32L4R5ZI chip embedded to experiment UART.Unfortunately, I am facing an issue when using interrupts.I looked up through the BSP (STM32Cube_FW_L4_V1.15.1) provided by ST if examples were using ...

STM32L412 USART transmit using DMA drops characters, must use HALFWORD alignment

I set up DMA for a USART transmit operation with an ST32L412. Settings are 115200 baud, 8 data bits, no parity. I thought everything was working until I noticed the third character in all my outbound data not showing up. It turns out the default BY...

STM32F030 debug problem

Hi,i designed myself a PCB with a STM32F030 with breakout pin (SWDIO, SWCLK, NRST, GND, UART1_TX, UART1_RX). When I try to debug it with VS Code, it doesn't work. I tried it with stutil, openocd (on st-link v2) as well as bmp (on BMP Bumpy). Nothing ...

In STMCUFinder STM32L476RC, STM32L476JE, STM32L476VC, STM32L476ME, STM32L476RE, STM32L476VE features section states that this MCUs have Chrom-ART Accelerator but in fact they only have ART Accelerator (completly different things!)

How does the disabling of VREFINT influences BOR?

we have a STM32L07CBT6 and we want to disable the VREFINT with following HAL functionsHAL_PWREx_EnableUltraLowPower()HAL_PWREx_EnableFastWakeUp()but still want to use the BOR. Therefore I checked the section of VREFINT (6.2.4) and BOR (6.2.2) in the ...