libusbhost Goto Github PK

##General Information

Link to the official repository

###Objectives

• provide open-source(Lesser GPL3) usb host library for embedded devices
• execution speed. This library doesn't use blocking sleep, making low overhead on runtime performance
• use static allocation for all of its buffers. This means no allocation and reallocation is affecting performance (possibility of memory fragmentation. execution time indeterminism). No malloc(), realloc(), free()
• do not depend on any operating system

• stm32f4discovery

• HUB
• Gamepad - XBox compatible Controller
• Generic Human Interface driver: mouse, keyboard (raw data)
• USB MIDI devices (raw data + note on/off)

Make sure the following prerequisities are installed to be able to compile this library

• git for libopencm3 submodule fetch
• gcc-arm-none-eabi toolchain for cross compilation
• cmake
• ccmake (optional)
• openocd (optional)

1. go to build directory located in the root of the project

cd build

2. compile demo and the library with the default options set

cmake .. && make

Executable demo is placed into build/demo.hex. Library is placed into build/src/libusbhost.a.

cmake initial cache variables

• Graphical user interface

ccmake ..

• Command line interface

cmake .. -D{VARIABLE}={VALUE}

If the openocd is installed, make flash executed in the build directory flashes the build/demo.hex to the stm32f4discovery board.

The following table represents the configuration of the debug output

The libusbhost code is released under the terms of the GNU Lesser General Public License (LGPL), version 3 or later.

See COPYING.GPL3 and COPYING.LGPL3 for details.