STM32F4 Discovery

ST released STM32L4+ family 0

ST released STM32L4+ family

Recently, STMicroelectronics released a new low-power family, STM32L4+, with extended performance (120MHz frequency) and up to 2MB dual bank flash memory and 640kB of RAM memory. Together with graphics support, it makes it the best ultra low-power device on the market for smart watches and other long life-high performance projects. Benchmark result is 150DMIPS or 409 coremarks in ULPbench test by EEMBC. STM32L4+ portfolio STM32L4+ family consists of 3 main derivarions each with optional encryption. You can find 3 different lines,...

STM32 tutorial: Efficiently receive UART data using DMA 13

STM32 tutorial: Efficiently receive UART data using DMA

U(S)ART peripheral can work very good by using RXNE (Receive Not Empty) for each byte separatelly. In this case, every received byte is manipulated by CPU by jumping to appropriate UART interrupt service routine. To allow CPU to do fully other job when we receive UART data at high speed we can use DMA (Direct Memory Access) to offload CPU. We can think of DMA as co-processor who can only transfer data between different memories, in our case between peripheral data register UART...

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EasyGUI preview on STM32F7-Discovery

Last 2 months I was working hard to build a platform independent graphical user interface library for embedded systems. I called it EasyGUI because idea behind is very simple library with support for custom user based widgets with touch and keyboard support. So far I built these features: Unlimited widgets (limited to RAM memory) Support for widgets which support children widgets (windows, panels, etc) Support for touch and keyboard events Support for UTF-8 encode and decode functions Support for custom...

New tutorials from user Slemi 0

New tutorials from user Slemi

User Slemi posted 2 tutorials on how to install SW4STM32 and how to install STM32CubeMX. Installing STM32CubeMX Installing System Workbench for STM32 SW4STM32 They are mainly written for total beginners and are step-by-step guide how to install. If you have troubles with installation, check above links.

Tutorial – Jump to system memory from software on STM32 2

Tutorial – Jump to system memory from software on STM32

One of you are already familiar with STM32 feature of embedded bootloader for software download to flash. This memory is called system memory and is normally accessible with BOOT configuration (either pin hardware or option bytes (later OB) in flash software). Normally, if you want to jump to system memory, you have to setup pin/OB and reset device. If you have OB setup, this is ok, but since you need at least one BOOT pin in hardware, this can lead to hardware...

SW4STM32 logo 21

Tutorial – How to use TM libraries with System Workbench for STM32

This tutorial will go step-by-step how to use my (TM) libraries with free SW4STM32 (System Workbech for STM32). This IDE is based on eclipse and it uses GCC compiler. Tutorial coverage Project template creation with STM32CubeMX software with correct clock setup, How to manually enable HAL modules from STM32Cube package How to add TM libraries to project and successfully compile it. First things first To avoid any misunderstanding and later troubles, please read this post how my HAL libraries are...