STM32 MCUs Products

What's the meaning of this compile/debug error. I didn't have it before.

I made a very simple code following youtube tutorial. I made it work a month ago. I come back and run it in debug mode, it works. I want to make a change in the PWM's length. It doesn't change. I notice the debug mode saying that my source files a ar...

Cycle Counter different when stepping

Hello,I'm currently doing some performance measurements using the DWT's CYCCNT register. As I understand the RM, the CYCCNT counts up for every core clock cycle (except when halted). However, I get different values in CYCCNT when stepping through the...

Adding LED APIs for STM32L476 Discovery board?

I am trying to create keil project for STM32L476VG Discovery board, I tried to include LED API through board support packages from Manage Run time environment.It leads to open STM32CubeMx and I have generated the code, While building the code I am ge...

Running STMCUFINDER in 64-bit Linux (Opensuse)

Hello,recent STMCUFINDER installs without errors on Opensuse Leqp-15.0. Running as in the 32 or 64 bit ennvironment however gives: LANG=C linux32 ./STMCUFinderchdir /devel/STMCUFinder/.current dir /devel/STMCUFinderError: Unable to initialize main cl...

Is it possible to use the external SRAM or external SDRAM for code space on the STM32F469I-Eval board?

Run code from external RAM

Hello,for a new project I plan to execute the code from an external SRAM connected via FMC.Are there any experience on speed leakage?In an other Topic I read that there are losses of 4 times the speed compared to the embedded Flash.https://community....

resetting the WWDG

Hey everyone,I'm a little confused. I've added the wwdg, but I'm not sure where to refresh it. Is there somewhere I can refresh it that should happen at a constant time, The examples I looked at simply place the reset in the code, but I have so many ...

GPIO Speed

Hello everybody,I have to generate a pulse with very narrow and different widths. The setting and procedure is as follows: Clock Freq = 16 Mhz, Prescaler = 1. off time should be 15 μs,  thuss = 15 μs * 16MHz / 2 = 120  Counts and with this logic for ...

Why placing breakpoints after enabling and starting USART DMA transfer in STM32F429I Discovery board corrupts my program execution?

Hi EveryoneI am working on a FreeRTOS based application in which I have to enable USART DMA channel to transmit 16 bytes of buffer from memory to USART Data Register in a task. It happens every time my task is invoked. Everything seems to work fine u...