MAA - Low Level Skeleton Library for Communication on Intel platforms

Library in C/C++ to interface with Galileo & other Intel platforms, in a structured and sane API with port nanmes/numbering that match boards & with bindings to javascript & python.

The intent is to make it easier for developers and sensor manufacturers to map their sensors & actuators on top of supported hardware and to allow control of low level communication protocol by high level languages & constructs.

API

These interfaces allow you to interact with all libmaa functionality. The C++ classes directly wrap the C API and provide a near 1:1 mapping of functionality.

C API Modules | C++ API Classes :-------------------:|:-------------------: @ref gpio.h "gpio" | @ref maa::Gpio "Gpio class" @ref i2c.h "i2c" | @ref maa::I2c "I2c class" @ref aio.h "aio" | @ref maa::Aio "Aio class" @ref pwm.h "pwm" | @ref maa::Pwm "Pwm class" @ref spi.h "spi" | @ref maa::Spi "Spi class" @ref maa.h "maa" | @ref maa.h "maa"

Hello Maa

@snippet hellomaa.c Interesting

Basic GPIO

@snippet gpio_read6.c Interesting

Basic PWM

@snippet cycle-pwm3.c Interesting

Basic I2C

@snippet analogin_a0.c Interesting

Basic AIO

@snippet analogin_a0.c Interesting

Basic SPI

@snippet spi_mcp4261.c Interesting

Supported platforms

• Galileo (Fab D)

ENV RECOMENDATIONS

All of these are 'optional', however they are recommended. Only a C compiler, cmake, libm and pthreads are technically required to compile.

• Swig 3.0.1+ built with node.js & python support (0.10.x)
• doxygen
• sphinx (requires doxygen)
• pygments

COMPILING

mkdir build/ cmake -i .. make

DEVELOPMENT

Please fork the code on github and then send pull requests. Please avoid merges in your forks. I will also accept patches sent in git style with signoffs to brendan.le.foll@intel.com

API Changelog

When the API breaks in a small way there will be a changelog listed here

0.2.6

• C++ examples added, using c++ headers/api.
• moved to open instead of fopen in all modules
• rename maa_check functions and made them internal to maa only.
• removed "export" functions from api
• Intel Galileo Gen 1 (rev d) fixes, incorrect definition of some items
• SPI, implementation completed.
• I2C internal function, completed.
• PWM fix bug in period set method.
• Swig upstream can be used for building.
• No longer builds docs on default cmake, needs flag
• GPIO/PWM ownership guard prevents closing on existing pins, still can be forced.

0.2.5

• C++/Python/Node Enums/const names now do not contain MAA_GPIO
• Enum type declaration for C++ changed
• Python/Node get_version() -> GetVersion()
• i2c read calls don't use const char* and i2c write calls do

0.2.4

• All maa_ contexts now are pointers to the actual struct which is not delcared in the header. The only end user change is that instead of returning a type maa_gpio_context pointer maa_gpio_init() now returns a maa_gpio_context (which is actually a pointer to struct _gpio internally).
• C++ API is available, use the .hpp headers and add stdc++ to the linker flags.
• Initial SPI implementation is provided

0.2.3

• maa_aio_read_u16() -> maa_aio_read()
• maa_aio_read() now returns a uint16_t instead of an unsigned int

0.2.2

• First version with API considered 'stable'