STM32 MCUs Products

__enable_irq and __disable_irq in (gcc) C without CMSIS library/function? (STM32F051)

I'm working on small (GCC/C-language) tests of STM32F051 with STM32CubeIde 1.8.0 on STM32F051 target. These tests are being done ---> without HAL, CMSIS or Lower Level drivers <---, so your patience is appreciated (that is, I don't intend in these te...

STM32H7B3I - Receiving an unknown interrupt on the EXT9_5 after clearing the interrupts on all lines 5 - 9.

Hi,I have the following code: which clears the WXTI9_5 interrupts, enables the EXTI9_5 interrrupts and provides an interrupt handler for these.void clearAll_EXTI9_5_IRQ(void) { __HAL_GPIO_EXTI_CLEAR_IT(GPIO_PIN_5); __HAL_GPIO_EXTI_CLEAR_IT(GPIO_PIN...

How to distinguish the multiple spi interrupt is there which hspi is get interrupted?

Hello,I am working on stm32h745. I have to use 3 spi in interrupt mode, then how I can know which spi is get interrupted?

STM32 Internal Flash Write/Read Failure

Hello everyone!I'm writing a STM32F446RE-based flight computer for a rocket. I want to use internal flash memory to keep some key data like base pressure or flight time. So if a power failure happens, the system can keep the base data.These are the t...

Is STM32L475VGT6 and STM32L471VGT6 full compatible ? I would like to put the exact same binary made from an L475 to an L471. From my test It works perfectly fine. But is there any hidden drawbacks to do it this way ? Do I need to generate an L471 bin ?

MHz frequencies on OUTPUT

hey thereI have a stm32f103 blue pill board which I wish to generate MHz frequencies on pinC13.I have used TIM1. it starts and interrupts and on each interrupt I toggle PC13like sovoid HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) { if(hti...

Help with debuging a for statement in BluePill

Hi, I'm using a base64 library to convert my data to my base64 on STM BluePill. everything works fine, but after 5 minutes i receive an imprecise data access violation hard fault error on a for statement. i'm using main loop to run my code every 1 se...