STM32 MCUs Products

With STM32H745 I want to share information between the cores. For this I defined a structure in each core and linked to shared SRAM4 region. I can successfully get data with same core write-read and M4write-M7read. But face problem for M7write-M4read.

Always get '0' for M7write-M4read.

standby mode stml475

Hello all I ajust trying to measure the curreent of my circuit in standby mode i wrote a small code that wake up the mcu from RTC alarm A ad then go in standbye modewhen i download the program the program works ok , it wakeup every 10 seconds fro...

DO NOT enable SPI when SCK is high with STM32F303

I was trapped when switching chip code to STM32F303, my SPI always send more unexpected 6 zero bits before my data. diagram below shows the detail.​The problem occurs when you enable SPI while SCK is high. My SPI works in CHPA and slave mode, I haven...

On a stm32f429I discovery board, which are the voltage of the SDA and SCL pin in I2C communication? May I connect it to a I2C device with 3.3 V. Thanks.

Can ccmram be divided into data and BSS

I want to divide ccmram into data and bss section,so how to do it?thank you!

STM32F042K6 GPIO Initialization Error

Hi there,currently I am trying to set up the CAN peripheral on the STM32F042K6 and it is getting stuck while initializing the according GPIOs. The CPU gets stuck at the HAL_GPIO_Init line, I am not able to connect with an ST Link without connecting u...

Can STM32H7 be made into a switch?What peripheral chips are needed?

I found that STM32H7 supports the boundary clock in the IEEE1588 standard. Can STM32H7 realize the boundary clock function as a switch? What peripheral circuits are needed?

WHat will happen if one of the ADC channel is removed from the couple of connected ADC channels?

Hi,i have a problem with controller stm32f030c8t6 where i have connected two ADC channels to read the sensor values(Temperature &humidity). if i remove one of the ADC channel from the sensor output pins i will get fluctuating values from minimum to ...

Thanks a lot for your great comments.

I had a lcd with fmc on stm32f429 project working properly with Fw1.14.0 . But when migrate to Fw 1.24.1 ,it is not working.No change on the code , FMC init code are same except " FMC_NORSRAM_TimingTypeDef Timing" initialization . Any idea ?

 FMC_NORSRAM_TimingTypeDef Timing; FW 1.14 FMC_NORSRAM_TimingTypeDef Timing; = { 0 }; FW 1.24