STM32F4 Discovery

Libraries and tutorials for STM32F4 series MCUs by Tilen Majerle

Tagged: stm32f429

Library 59- Change PLL settings while STM32F4xx is running 4

STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery

Library 59- Change PLL settings while STM32F4xx is running

I’ve been already talking about topic, how to properly set clock speed for your device with PLL settings. This article could be found here and it is definetelly worth of readiny, especially for beginners. Today, it was very rainy and bad day, so I was thinking about a library that could dynamically change PLL settings. This can be used to change current consumption of your device if there is no need for very high speed clock for some time. Changing...

Library 58- Dynamic strings on STM32F4xx 0

STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery

Library 58- Dynamic strings on STM32F4xx

Have you ever been in position where you need to store some string informations just for a small amount of time? Did you reserve ram memory before you worked with strings? If you did it like that, than this library might be a solution for you. This library was designed directly for a purpose where you need to store your information for a few time. For example, getting some string informations from your sensor, USART, etc. It uses malloc and...

Project 04- GPS Logger with STM32F4xx and USB flash drive 0

STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery

Project 04- GPS Logger with STM32F4xx and USB flash drive

It was nice Saturday day to try motor for first time this year for me. Using it with GPS logger, it was very fun to track myself where I drove for about half an hour. I’ve made a GPS data tracker using STM32F4-Discovery board. Project uses GPS device from ebay (UBLOX NEO-6M) and USB flash drive to store data onto. Project Project works with STM32F4- or STM32F429-Discovery boards. It was tested on F4-Discovery, because it has more LEDs than F429....

Library 57- Buttons for STM32F4xx 8

STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery

Library 57- Buttons for STM32F4xx

I had some free time so I made a new library for web. It can handle buttons, connected to your STM32F4xx device. It supports basically unlimited number of buttons with different triggering. Currently, callback functions can be called on these events: Button on pressed: Called directly when button is pressed Button normal press: Called when button is released after specific amount of time Button long press: Called when button is pressed for specific “long” amount of time It uses malloc()...

Library 54- General library for STM32F4xx devices 5

STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery

Library 54- General library for STM32F4xx devices

For 54th lib I decided to make it’s name to be “General”. With this name I mean that in this library, a lot of different stuff, maybe unrelated between, but very useful things will be implemented. It allows you to make software reset, get reset source, disable or enable global interrupts (NVIC) and more. It will be updated frequently but for now it’s just a start to use it in your projects. Library Features Support for software reset with callback...

Library 51- Chrom-ART Accelerator (DMA2D) graphic library on STM32F429-Discovery 11

STM32F429 / STM32F429 Discovery

Library 51- Chrom-ART Accelerator (DMA2D) graphic library on STM32F429-Discovery

ST’s Chrom-ARTTM Accelerator function or DMA2D is supported in this library. This is powerful tool in STM32F429/39 or STM32F427/29 devices. It is based on DMA transmission from graphic to memory in top possible speed. This can be used to draw moving objects, rectangles, circles very fast without a lot of work. My DMA2D GRAPHIC library was designed in a way that can support any LCD. Because anything that DMA2D knows is writing “data” (color) in memory at some locations. You...