STM32 MCUs Products

What is relation between Bit-Rate and Nominal & Data parameters setting for FDCAN/CAN interface on STM32 H7xx Family?

I'm working on FDCAN & CAN interface provided on H745XI-DISCO board. I was new to these interface when I started, but now I can say I have good understanding on CAN & FDCAN Bus protocol. Using provided examples with STM32CubeIDE FW for H7 series, I w...

Hi, I'll like to know the warranty and FIT data of STM32F722VET6? In terms of availability, am I correct to assume it will be available to Jan 2030 based on the 10 year commitment?

Is there a pin-compatible and code-compatible alternative to the STM32F051C8T6?

The STM32F051C8T6 is currently unavailable on the market. It is liste as an active part but lead times are currently many months. I have a working PCB and firmware for this MCU. I would like to switch to an alternative MCU of this family without rewo...

How to use STM32070CB to achieve IAP?

SPI RX->DMA stops running when debugger is allowed to resume

I'm trying to run SPI2 (Master Receive Only) such that it continuously DMAs data from the slave. The problem is, it only works when I step over the HAL_SPI_Receive_DMA line... at which point I see SCLK, and it will run forever, until I "resume" th...

Wakeup from sleep HAL_TIM_PeriodElapsedCallback interupt on a STM32L031 commenting out HAL_PWR_EnableSleepOnExit (); and HAL_SuspendTick(); the LED flashes

Im trying to reduce power by putting the a STM32l031 to sleep between timer interupts. It goes to sleep but never wakes upvoid HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef * htim) {  if (htim -> Instance == TIM21) {  Strobe++;  if (Strobe==8352){ ...

DMAMUX - how to trigger Request generator from DMA? RM0440 Rev 4 documentation request.

I'm trying to generate a cascade of DMAs:1) HRTIM trigger ADC. 2) On ADC conversion completion, DMA ADC results to memory.3) On ADC DMA transfer complete, DMA memory to different peripheral.When a DMA occurs, the DMA request multiplexer generates bot...

Enabling LSE clock on PA8 from HEX code?

I am unable to communicate with the MCU via UART (115200 bit/s). It looks like the program inside MCU is not running. I think the problem can be probably in not running LSE 32.768kHz crystal oscillator.Is it possible to enable LSE clock on PA8 if I h...

I2S data gets corrupted

Hi there,I am trying to do some digital signal processing on a STM32G031F6 by interfacing an SPH0645 MEMS microphone via I²S. I'm running into strange issues however, that I haven't been able to solve in the last few days. I am switching to an analog...

Dealing with compiler problems (over-optimizing to nonsense)

Hello.Very frequently I end up chasing problems that not suppose to be in first place.Here is example ( making 32b counter of 16b by counting overflows)volatile void Delay_ms(uint32_t ms) // delay in ms { time = 0; time_start = LPTIM2->CNT; o...