Tagged: cpu

HAL Library 19- CPU LOAD monitor for STM32Fxxx 1

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...

All STM32 HAL libraries 83

All STM32 HAL libraries

In this section, I will write all libraries based on HAL drivers from ST. If you see this first time, make sure you read this post first about how structure of my libs looks like! License All my softwares are published under MIT license. This means that you are allow to modify, share and use my source and other stuff in personal or commercial use. If you modify source code, it has to stay under GNU GPL v3 license too. I...

Library 60- CPU load monitor for STM32F4xx devices 3

Library 60- CPU load monitor for STM32F4xx devices

Yesterday, I’ve made a post about monitoring CPU load depending on CPU work and it’s sleep time using DWT counter. This post can be found here. This post is now a library, set together from post about CPU load. Library Features Measures CPU load. Load depends between sleep time and work time of CPU CPU load is updated for every System core clock cycles. In other words, that is each 1 second DWT counter used for measurements Sleep mode which...

CPU load monitor for STM32F4xx 0

CPU load monitor for STM32F4xx

I’ve been searching for a simple CPU load monitor on STM32F4xx device. Today, I’ve managed to get one very, very primitive CPU load monitor for these devices. Check library here. STM32F4xx have built-in DWT (Data Watchpoint and Trace unit) which has several timers there. 2 of them are cycle counter and sleep counter. The first counts number of CPU cycles and the second counts number of cycles where CPU was sleeping. It would be very easy to get CPU load,...

All STM32F4 libraries 119

All STM32F4 libraries

Because there is a lot of libraries I have done, I will make a table with all of my libraries at one place. When new library will be created, it will be posted here. These libraries work on both Discovery boards, if not, it will be specified. Actually, libraries should work on STM32F4xx series of microcontrollers if they have peripherals that are need for library. All STM32F4xx MCUs don’t have everything inside. đŸ™‚ Libraries are tested on my 4 STM32F4...