STM32F4 Discovery

Libraries and tutorials for STM32F4 series MCUs by Tilen Majerle

Tagged: cortex m4

HAL Library 19- CPU LOAD monitor for STM32Fxxx 6

STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / STM32F7 / STM32F7 Discovery

HAL Library 19- CPU LOAD monitor for STM32Fxxx

CPU load monitor library is simple library, which counts number of sleeping cycles using WFI() instruction compared to working cycles in one second. Load variable is updated every 1 second to determinate how much your processor works. For that case, you have to always put your system to sleep mode when you don’t need it. It uses DWT counter in Cortex M4/M7 to measure cycle counters! Library Read more about new HAL libraries Features Measures CPU load. Load depends between...

FFT result of matlab generated signal 2

STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / STM32F7 / STM32F7 Discovery

HAL Library 14- Fast Fourier Transform for STM32Fxxx

Here is an example of Fast Fourier Transform on STM32F4xx devices. This HAL library works for F4 and F7 series! That was the main reason I decided to make a library for FFT on STM32F4xx. To use this library, some third-party libraries are also required. All these required files can be found in STM32F4xx Standard peripheral drivers and DSP instructions provided from ST.com from their website. Now is version 1.5.1 of these drivers and also .lib file is included for ARM...

FFT result of matlab generated signal 58

STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery

Library 62- Fast Fourier Transform (FFT) for STM32F4xx

Here is an example of Fast Fourier Transform on STM32F4xx devices. Today, I was looking something on ARM DSP documentation and I saw that some functions for FFT used in my example are deprecated and will be removed in future. That was the main reason I decided to make a library for FFT on STM32F4xx. To use this library, some third-party libraries are also required. All these required files can be found in STM32F4xx Standard peripheral drivers and DSP instructions provided...

STM32F4 FFT example 147

STM32F4 / STM32F429 / STM32F429 Discovery

STM32F4 FFT example

As you maybe know, STM32F4 is Cortex M4 with DSP instructions. This allows you to make a FFT with a few simple steps. For that purpose, I have made an example, on how to create FFT with STM32F4. I recommend use my FFT library for future use. It is built on ARM DSP library with everything included for beginner. When the ARM company issued Cortex-M4 core, it also published DSP libraries for mathematics and other stuff. And there are also...