STM32 MCUs Products

Will Programming the user code in FLASH MEMORY overwrite the option byte registers?

If FLASH register's offset[ex:FLASH_OPTR offset:0x020] refers from the userspace address of Flash memory,writing the user code in flash memory starting address [0x08000000] will overwrite the existing flash registers data?

Temporarily disabling the USART pins (RX and TX) in low power mode, STM32U5

Hi, I have my PCB that have a processor used as host and STM32U5 (STM32U585AII6Q) used as low power MCU. USART connection is between host and STM32U5.When I enter Stop3 low power mode, and host is turned off, there is a problem with current on USART ...

Data protection in external SRAM interfaced with STM32F4 series controller

Hi All,I have an application running on STM32F439 based controller board. And I am planning to use external SRAM.I wanted to know, how we can protect the data in external SRAM ?Or any suggestion on using external SRAM with assumption of security.Than...

error 0xfffffffe

I am writing a Programm on stm32cubeide. But during Debugging and Running the Programm, I habe the error Break at address "0xfffffffe" with no debug information available, or outside of program code.I don't know what it means and can I handle with th...

stm32h750vbt6 DMA is not working if active D cache

I have read previous posts ,,,I set up dma to read adc ,Although dma's destination address is allocated from AXI RAM, dma does not work when d cache is active.Can anyone share detailed information or a sample code about this?

Enabling automatic, regular wakeup with RTC timer

Dear community,I have some issues with implementing an automatic wakeup with the RTC timer on my STM32L476RG (currently on the Nucleo-Board, will be later replaced with proprietary hardware). I generally have two wakeup sources: either the L476 is wo...

STM32f469 SDRAM Read/Write issue on FMC Bank2

Hello all,I have W9816G6JH( Winbond) SDRAM interfaced with STM32f469 on a custom board.SDRAM is interfaced on FMC Bank2.I have generated SDRAM initialization code for MDK-ARM using CubeMx. When I Write and Read back on SDRAM address 0xD0000000 it sho...

Are there resources to more easily understand peripheral versions used across families?

I use a lot of STM32s in my work. The reference manuals, datasheets and so on are excellent but often contain a lot of near repetition between families. What I mean is that the details of the registers for (say) GPIO are often identical. But not alwa...

How to set the option bytes in STM32G0B1KE MCU to change the boot configuration through i2c in-application programming?

STM32F407 - Question of how to use 3-wire SPI

Hi,My slave device has only one bidirectional data line. Now I want to configure the SPI in the half-duplex mode. And I noticed that the reference manual gave an descripiton of 1 clock and 1 bidirectional data wire.I want to ask if ST has peripheral ...