salma1987 / stm32f4-discovery-example Goto Github PK
View Code? Open in Web Editor NEWThis project forked from ericherman/stm32f4-discovery-example
program the stm32f4-discovery board
This project forked from ericherman/stm32f4-discovery-example
program the stm32f4-discovery board
stm32f4-discovery-example is a very simple example of how to program an stm32f4 discovery board. In short: Choose an example: "cd rotate-chars" Use "make" to build the firmware. Use "make flash" to push the firmware to the stm32f4-discovery. Use GNU screen to test the stm32f4-discovery's firmware. ==================================================================== The project started as Kendrick Shaw's slightly modified version of the USB CDC example. The original example just echoed back whatever it received, so to be more convincing that something is happening, a little code was added to swap each letter with the another letter in the alphabet and flash the LEDs when data comes in. Next an example using SPI to read data from the on-board accelerometer was added. Everytime a character is sent, the accelerometer's X, Y, and Z values are returned. To build an example: * Install the libopencm3 libraries, for example git clone https://github.com/libopencm3/libopencm3.git * Install the arm developer tools (and add to PATH) with summon-arm-toolchain from https://github.com/esden/summon-arm-toolchain * Build stlink from https://github.com/texane/stlink * put the st-flash command from stlink somewhere in your path (e.g. by creating a soft link) * install the udev rules from stlink as described in the stlink README * cd to an example directory, for instance "cd rotate-chars" * if needed, adjust the path of the LIBOPENCM3_DIR variable in the Makefile * run "make" in the example directory To flash the example to the discovery board: * Connect the usb-mini cable to the board and your computer (not the usb-micro) * run "make flash" If you get a permissions error, either run it as root or chmod the device it's complaining about to give yourself write access * Press the reset button on the discovery board To test an example: * It may be useful to unplug other USB devies like phones or Arduinos so you don't have to figure out which ttyACM* device to use * Connect the discovery board to the computer through the usb-micro connector (in addition to the usb-mini connection) * "dmesg" and "ls -l /dev/ttyACM*" to determine device name * run "screen -l /dev/ttyACM0" (or whatever the device name is) * Type some things, and confirm that the LEDs near the reset switch on the discovery board toggle as you type keys. * If running the "rotate-chars" example, you may confirm that the letters you see on the screen are thirteen letters further in the alphabet from what you typed. (An easy test of "rot13" is simply typing again the output and it should be transformed back to what you typed in the first place.) * Press 'Ctrl-A' 'k' and then 'y' to close the screen session when you're done. Cheers!
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google โค๏ธ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.