STM32 MCUs products

STM32CubeH7 - CDC example not getting compiled

STM32H745 - Code is sometimes slow, but can be fixed by NOP

Hello,I have a rather strange problem on the CM7, where code executes with half or third the speed it should.I have no idea what is causing this, but I know how to fix it: by adding one or several NOPs somewhere in the code.Example: an ISR is taking ...

FDCAN_CCCR.Init bit is not getting cleared STM32H723ZG

Hi,I am trying to initialize FDCAN for my project. After the initialization I am clearing INIT bit in CCCR Register. The output what I can see is only CCE bit gets cleared but INIT bit is stuck at 1.Below is my code snippet.void Can_driver_init (void...

FDCAN_CCCR.Init bit is not getting cleared STM32H7S7L8H6H

I was trying to use FDCAN when I came across a problem where FDCAN_CCCR.Init bit is not getting cleared. The CCE bit gets cleared when setting INIT to 0, but INIT stays unchanged. Any ideas what could be wrong? I came across this topic where they had...

H7 migration, send SPI without using HAL

Hello dear community!I've migrated from F7 to H7, everything fine so far.To save CPU time I don't want to use HAL for sending two SPI bytes.My F7 transmit SPI code was very simple and perfectly working :SPI6->DR = byte_0; SPI6->DR = byte_1;But on the...

Changing boot address of CM4 and CM7 in STM32H745 - Dual core

Hello Tesla I need to run M4 from 0x08000000  and then M7 from 0x08100000. Is there any example ?   Exactly I v'done my BOOT that runs on M4 (0x08000000) loads the Flash , then jumps into M4 (0x08040000). Now i have to run M7 from 0x08100000, but i d...

OPTA Potenta H7 - STM32H7 - HRTIM - Master Timer Update Interrupt & Repetition Interrupt not Firing

Hi,I'm developping on an Arduino OPTA (STM32H74x) Portenta H7 and I want to use the high-resolution timer for driving some interrupts-based actions, actually using only the master hr-timer (no output). >> Problem: The code doesn't want to fire any in...