STM32 MCUs Products

Does anyone knows the deferences between those two Revisions?? Revision 2 with Revision X , my app is writen on X and when i upload it to 2 , hangs

why getting device descriptor request failed in nucleo-f446re board.

I am using nucleo-f446re board. It was running perfect before but suddenly i am getting USB device not recognized when I plug in my board to my system. And in device manager it is showing device descriptor request failed. Please suggest me the soluti...

STMH753 GPIO port pin read is slower compared to the STMF429

Hi,I am porting an application from the STMF429ZI to the STMH753ZI and have noticed that the STMH753 is slower when reading the GPIO inputs compared to the STMF429. In one function, multiple GPIOs are read to gather 16 input states. Measuring this fu...

STM32F4 SDRAM & NOR FLASH READ WRITE PROBLEM

I am troubling to write and read data from external SDRAM & NOR Flash in our custom made hardware which has STM32F429 controller.Thread is disconnecting while debugging & writing & reading operation not succeed.Can you please explain the all steps in...

Difference between arm_mult_f32 function and a normal multiplication

Hi everyone,I expected to get a faster multiplication processing using the arm_mult_f32 function than a normal multiplication like val1*val2. However, when I tested it using the SysTick->VAL I get a bigger processing time for the arm_mult_f32 functio...

Wheel speed using hall effect sensor and STM32F446 - count 'teeth' rather than period.

Hello,I'm new to all this, first-year uni student and still learning java. I'm working on someone else's code for the uni motorsport club in c++ and the original coder has left.Currently, we detect the wheel speed using a hall effect sensor and captu...

Mac OS X Catalina cannot find STM32 via USB port

Hello,I connected my STM32 board and it's blinking.However, I get "Found 0 stlink programmers" when I run st-info --probeI am running Catalina 10.15.2.Would anyone know how to resolve this? I looked for info/drivers but did not find anything.st-info ...