STM32 MCUs Products

When I am Starting timer interrupt it jumps to IRQHandler why?

when MCU execute this "HAL_TIM_Base_Start_IT(&htim2);" then at that instant program jumps to IRQHandler. And then it works normally.How can I solve this issue?RegardsImran

Is there a difference between WKUP1, WKUP2 and WKUP3 pin at STM32F373xx?

The data sheet of the STM32F373xx (https://www.st.com/resource/en/datasheet/stm32f373cc.pdf) on page 71 (6.3.6 Wakeup time from low-power mode) states that the WKUP1 (PA0) pin is used to wake up from standby mode. The reference manual (https://www.st...

STM32L152 comparator pulldown resistor inaccurate?

Is it possible that STM32L152RE's COMP1 400KOHM is actually ~330KOHM? I have tested it on 3 different hardwares and all brought me to this conclusion.

Snapshot mode in STMStudio

Hello! I trying to debug my application with STMStudio. In direct acquisition mode all working fine. But i can not find information about snapshot acquisition mode. Where i can find DataAcq.h and DataAcq.c? Or may be exist some example package?

Debugger not turning on LED

I2C on STM32F7 not working: Noob error or broken board?

Hi all,I recently bought my first drone flight controller based on STM32F722RET6 with I2C barometer.The barometer is not working and the chip becomes quite hot (>70°C), although firmware settings are ok. So I started some error checking while waiting...

STM32L4 Run power not constant.

Hello I am using a STM32L476,I am having issues with the power consumption, Every time it resets, the power consumption is different as in +-500 uA but I have seen as much as +-1.0 mA.I am using the MSI at 48 Mhz. After initializing the clocks, I in...

Sleep mode and wake up mode of mcu in STM32L053R8T6 on every external interrupt of switch.

I am new on STM32.I have one switch that i define it's external interrupt. i want to put my mcu in sleep mode and at another interrupt i want my mcu wake up. i don't have any idea how to write routine for wake up and sleep mode API when interrupt oc...

STM32F469 external QSPI loader

Hello, I am trying to create an external loader for N25Q128A QSPI. I'm currently developing on STM32F469I-DISCO. My loader doesn't work once loaded into STM32 ST-LINK utility (nor in CUBE programmer). If I modify my project adding a main file with a ...