STM32 MCUs Products

STM32H745 raising hard fault when changing RDP level from 0 to 1

Hi I have been trying to change the read protection level on my device using the ST HAL driver library: The code I am using is:FLASH_OBProgramInitTypeDef OB_Config;   //Read Option byte configuration HAL_FLASHEx_OBGetConfig(&OB_Config);   //Update re...

DMA Mem to peripheral inconsistent output

I have a timer + dma which outputs a signal for addressable LEDS. The code calls the PWM Start function on a crude timer loop for testing purposes.The first time the DMS starts, its perfect, and the output is correct and as expected. However the seco...

DMA的�?�?�模�?和FIFO有什么关系啊，是一个�?�?嘛

1) How to segregate secure and non-secure memory regions? 2) How to access secure data using non-secure API's? 3) Can i get any reference manual about that API's?

I have Enabled the SWV ITM Data Console and i am able to see the print out put . when I changed the optimization level to optimize for debug(-Og) or optimize for size (-Os) then i cant data see the SWV console! have revert level to None also not working

STM32F7 tim3 rollover with reload works, how do I get the interrupt for each external pulse?

I have tim3 setup to count to 25,000 using a 2.5Mhz input signal. This works. I enable the global interrrupt and it fires whenever the counter rolls. I have an issue though, that when I poll the timer for the count, it is double it should be and I...

How is CAN message RAM initialized/zeroed on STM32H7?

I have the problem that the CAN message RAM which is allocated for the acceptance filters is not zeroed out on startup.The part of the CAN message RAM allocated for acceptance filter seems to just be random data which means that usually no CAN frames...