STM32 MCUs Products

Power cycling breaks debugging STM32H7B3i-DK board with Keil MDK V5.30

Hi all,I am experiencing problems when trying to debug the STM32H7B3i-DK board with Keil MDK. Intermittently I can successfully connect to the target and debug the board by "single stepping and setting break-point etc" using the debugger.The behavior...

App notes on JTAG?

We are developing a board, will be producing several thousands of them, and they have two STM32L0xx's on them, and some other chips that also have JTAG. I have told the hardware guys that we can combine all the JTAGs into 1 JTAG and save some (much n...

How to detect the flash size at compile time ?

Is there a preprocessor define of the flash size available at compile time ?I know that the flash size can be read at run-time from the FLASH_SIZE_DATA_REGISTER but I need the value for a constexpr.I found only the following definitions - but this is...

guys, someone help me for god's sake, i'm trying to make vl53l1x work on my discovery stm32f051 but i can't at all, it's been 3 days already. It's for a college job, I'm desperate, I've tried the program for you all here but there is that timeout error an

stm32L151 not wakeup in a long time in stop mode use rtc

Hi, all , please help me . I use stm32L151. when rtc wake up timer is 30 or smaller minuts, the board can wake up, and work . but when rtc timer is 6 or long hours, the board some times not wake up . what happened ? I need a long sleep (many hours)...

STM32F407: Can TIM2 be configured for encoder AND TIM5 input capture on same pins?

It isn't clear if more than one peripheral, e.g. TIM2 and TIM5 can be configured to use the same pin, assuming of course than both don't try to use the pin in an output mode. If this is possible, then I should be able to capture encoder time transiti...

HAL Delay () function does not work with HAL_UART_Receive()

Hi everyoneI'm having this problem while using stm32L073RBT:When I use HAL_UART_Receive() only it seems normal, but when I use HAL Delay () after or before HAL_UART_Receive() the program freezes,Knowing that I did not enable any interrupt!!Thanks

UART Interrupt Issue and Interrupt Generating

Hi, I am using UART receiver in interrupt mode. After couple of hours it stops working(Only the UART Receiver Interrupt stops working, TX and Main loop keeps working). The handler function is too big and this is probably why it happens. If I were to ...