STM32 MCUs Products

STM32L412C8 USART2 RX TX pin swap not working

I am using the STM32L412C8 and I am having trouble with the USART2 RX/TX pin swapping. I enabled it in CubeMX but if I send data to the PA2 pin (originally TX but should be RX after the swap) I get nothing. If however I send my data to PA3(should be ...

Hi, I'm designing a board with STM32F417IEH6 using external clock which enters the internal PLL for generating SYSCLK. My question is, what happens when the external clock stops? does the PLL continues to work? does SYSCLK still exists? Thank you,

It seems that using the comparators with interrupts on the stm32f373 series with HAL drivers blocks the program in infinite loop.

I attach the full code as a file and the relevant part here - for the evaluation board STM32373C-EVAL in which the red LED blinks a few times until the comparator is activated and blocks the execution.Is there a workaround to make the comparator work...

Empty check flag on STM32F030 (option bytes)

Hello,I have a problem when flashing my MCU (STM32F030CCT).After flashing, a Power On reset is always needed to start my SW (to reload the option bytes due to the "empty check flag").From manual: On STM32F070x6 and STM32F030xC devices only, internal ...

RM0440 Rev. 2: Number of significant bits in FLASH_WRPxxR apparently wrong.

RM says for both Cat. 2 and Cat. 3 devices all WRPxxR have 7 significant bits, and production values for option bytes starting at 0x1FFF7818 are 0xFF*0*0FFFF.This suggests that bit 7 in WRP_xxR reads '0''.However, actual G431RB has only 6 significant...

STM32L4Px characteristics on the WWW page are false

On the page :https://www.st.com/content/st_com/en/products/microcontrollers-microprocessors/stm32-32-bit-arm-cortex-mcus/stm32-ultra-low-power-mcus/stm32l4-plus-series/stm32l4p5-q5.html?querycriteria=productId=LN2188$$1=STM32L4P5#then product selecto...

ADC self calibration, needed or not ?

Hello,I have a project where my ADC channels will be calibrated end of line using a calibration bench. I will directly calibrate the physical measurements (voltage and current). My question is: do I need to implement the ADC self-calibration sequence...

Why FMC bus turnaround time is so long in mode D on STM32F303?

I'm using STM32F303ZE MCU's FMC(FSMC) to communicate with a special chip. FMC is cofigured in NOR/PSRAM mode, asynchronous, non multiplexed, timing mode D (see attached FMC configuration in CubeMX). FMC clock is equal to AHB MCU clock that is 70MHz. ...