STM32 MCUs Products

How to differentiate between STM32H743 and H745 at runtime?

Is there any way to find out if the code is executed on a H743 (single core) or a H745 (dual core) MCU at runtime?If I am not mistaken the DBGMCU_IDC (Identity code register) has the same value for both MCUs. Is there any other register which I could...

When to trigger an outage

当我�?�时打开uart的接�?�中断和�?�一uart dma的接�?�中断时，两个中断都会被触�?�，如果设置的优先级相�?�，触�?�的顺�?是什么？

I'm analyzing some code downloaded from a STM32F401 and have come across references to reserved memory addresses 0x42470000 and 0x42470E80, so my question is what do these addresses belong to please?

STM32 SAI in TDM-4 Mode

Hi, Im trying to connect adau1772 using TDM-4 Protocol to an STM32 MCU (L462RE).Question 1: How to configure SAI as TDM-4, is my configuration wrong?Question 2: Correct callback which occures when data packed is received?Question 3: adau1772 is putti...

capacitor does nut fully charge

hi I have a 1000uF capacitor and a blue pill STM32F103c8t6. I connected the positive end of cap to PB9 and the negative end to GND. then I had the code below inside while(1) loop///////////////////////////CHARGE////////////////////////////////// HAL_...

STM32L433 IWDG wakes up from SHUTDOWN Mode

In my use-case i want to have a watch-dog active when the device is in use to prevent software stucks or accidental ending in endless loops. Therefore i have configured the IWDG like this:void hw_IWDG_Init(void){   IwdgHandle.Instance = IWDG; IwdgH...

need help understanding Vref / Vdda

I'm trying to find what voltage reference my ADC is using, as it is not going up to 0xFFF. Along the line, I have become quite confused about the Vref - I used to use other chips where the Vref is just a reference voltage for the ADC, but with STM32 ...