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Damien George a065d78675 drivers/onewire: Move onewire.py, ds18x20.py from esp8266 to drivers.
These drivers can now be used by any port (so long as that port has the
_onewire driver from extmod/modonewire.c).

These drivers replace the existing 1-wire and DS18X20 drivers in the
drivers/onewire directory.  The existing ones were pyboard-specific and
not very efficient nor minimal (although the 1-wire driver was written in
pure Python it only worked at large enough CPU frequency).

This commit brings backwards incompatible API changes to the existing
1-wire drivers.  User code should be converted to use the new drivers, or
check out the old version of the code and keep a local copy (it should
continue to work unchanged).
2017-06-22 16:28:07 +10:00
bare-arm all: Move BYTES_PER_WORD definition from ports to py/mpconfig.h 2017-04-01 11:39:38 +11:00
cc3200 cc3200: Initialise variable to zero to prevent compiler warnings. 2017-06-20 17:14:48 +10:00
docs docs/select: Rename to uselect, to match the actual module name. 2017-06-16 11:28:06 +03:00
drivers drivers/onewire: Move onewire.py, ds18x20.py from esp8266 to drivers. 2017-06-22 16:28:07 +10:00
esp8266 drivers/onewire: Move onewire.py, ds18x20.py from esp8266 to drivers. 2017-06-22 16:28:07 +10:00
examples examples/embedding: Use core-provided KeyboardInterrupt object. 2017-06-07 20:28:18 +10:00
extmod extmmod/modonewire: Rename public module to mp_module_onewire. 2017-06-22 16:17:46 +10:00
lib stmhal: Move pybstdio.c to lib/utils/sys_stdio_mphal.c for common use. 2017-06-15 18:55:34 +10:00
logo logo/1bit-logo A black & white version of the logo 2016-08-02 14:59:55 +03:00
minimal py: Add LOAD_SUPER_METHOD bytecode to allow heap-free super meth calls. 2017-04-22 23:39:20 +10:00
mpy-cross mpy-cross/Makefile: Guard "override undefine" by test for make feature. 2017-05-26 13:16:55 +10:00
pic16bit stmhal: Move pybstdio.c to lib/utils/sys_stdio_mphal.c for common use. 2017-06-15 18:55:34 +10:00
py py/compile: Optimise emitter label indices to save a word of heap. 2017-06-22 15:05:58 +10:00
qemu-arm qemu-arm/Makefile: Include relevant sources in list for qstr extraction. 2017-06-15 20:02:43 +10:00
stmhal stmhal: Make available the _onewire module, for low-level bus control. 2017-06-22 16:20:22 +10:00
teensy teensy/Makefile: Include relevant sources in list for qstr extraction. 2017-06-15 20:03:17 +10:00
tests tests/basics: Add tests for for-else statement. 2017-06-22 14:02:14 +10:00
tools various: Spelling fixes 2017-05-29 11:36:05 +03:00
unix unix/mpconfigport.mk: Update descriptions of readline and TLS options. 2017-06-17 15:44:28 +03:00
windows windows: Convert to use core-provided version of built-in import(). 2017-06-01 16:29:02 +10:00
zephyr zephyr/machine_pin: Use native Zephyr types for Zephyr API calls. 2017-06-10 19:40:31 +03:00
.gitattributes gitattributes: Remove obsolete lines. 2017-02-17 10:27:34 +11:00
.gitignore docs: Modify Makefile and indexes to generate cPy-differences pages. 2017-02-20 17:14:35 +11:00
.gitmodules lib/berkeley-db-1.xx: Add Berkeley DB 1.85 as a submodule. 2016-06-14 22:20:18 +03:00
.travis.yml travis: Change an stmhal rule to build PYBV11 instead of default PYBV10. 2017-03-15 22:20:30 +11:00
ACKNOWLEDGEMENTS ACKNOWLEDGEMENTS: Change backer 905 info, replace city with name. 2016-10-22 14:45:35 +11:00
CODECONVENTIONS.md CODECONVENTIONS: Clarify MicroPython changes sign-off process. 2017-06-16 11:32:51 +03:00
CONTRIBUTING.md CONTRIBUTING.md: Link to contrib guidelines and code conventions. 2015-05-03 22:04:52 +01:00
LICENSE Add license header to (almost) all files. 2014-05-03 23:27:38 +01:00
README.md README: Change Travis & Coveralls badges to not use link references. 2017-03-26 17:03:54 +11:00


Build Status Coverage Status

The MicroPython project

MicroPython Logo

This is the MicroPython project, which aims to put an implementation of Python 3.x on microcontrollers and small embedded systems. You can find the official website at micropython.org.

WARNING: this project is in beta stage and is subject to changes of the code-base, including project-wide name changes and API changes.

MicroPython implements the entire Python 3.4 syntax (including exceptions, with, yield from, etc., and additionally async/await keywords from Python 3.5). The following core datatypes are provided: str (including basic Unicode support), bytes, bytearray, tuple, list, dict, set, frozenset, array.array, collections.namedtuple, classes and instances. Builtin modules include sys, time, and struct, etc. Select ports have support for _thread module (multithreading). Note that only a subset of Python 3 functionality is implemented for the data types and modules.

See the repository www.github.com/micropython/pyboard for the MicroPython board (PyBoard), the officially supported reference electronic circuit board.

Major components in this repository:

  • py/ -- the core Python implementation, including compiler, runtime, and core library.
  • unix/ -- a version of MicroPython that runs on Unix.
  • stmhal/ -- a version of MicroPython that runs on the PyBoard and similar STM32 boards (using ST's Cube HAL drivers).
  • minimal/ -- a minimal MicroPython port. Start with this if you want to port MicroPython to another microcontroller.
  • tests/ -- test framework and test scripts.
  • docs/ -- user documentation in Sphinx reStructuredText format. Rendered HTML documentation is available at http://docs.micropython.org (be sure to select needed board/port at the bottom left corner).

Additional components:

  • bare-arm/ -- a bare minimum version of MicroPython for ARM MCUs. Used mostly to control code size.
  • teensy/ -- a version of MicroPython that runs on the Teensy 3.1 (preliminary but functional).
  • pic16bit/ -- a version of MicroPython for 16-bit PIC microcontrollers.
  • cc3200/ -- a version of MicroPython that runs on the CC3200 from TI.
  • esp8266/ -- an experimental port for ESP8266 WiFi modules.
  • extmod/ -- additional (non-core) modules implemented in C.
  • tools/ -- various tools, including the pyboard.py module.
  • examples/ -- a few example Python scripts.

The subdirectories above may include READMEs with additional info.

"make" is used to build the components, or "gmake" on BSD-based systems. You will also need bash and Python (at least 2.7 or 3.3).

The Unix version

The "unix" port requires a standard Unix environment with gcc and GNU make. x86 and x64 architectures are supported (i.e. x86 32- and 64-bit), as well as ARM and MIPS. Making full-featured port to another architecture requires writing some assembly code for the exception handling and garbage collection. Alternatively, fallback implementation based on setjmp/longjmp can be used.

To build (see section below for required dependencies):

$ cd unix
$ make axtls
$ make

Then to give it a try:

$ ./micropython
>>> list(5 * x + y for x in range(10) for y in [4, 2, 1])

Use CTRL-D (i.e. EOF) to exit the shell. Learn about command-line options (in particular, how to increase heap size which may be needed for larger applications):

$ ./micropython --help

Run complete testsuite:

$ make test

Unix version comes with a builtin package manager called upip, e.g.:

$ ./micropython -m upip install micropython-pystone
$ ./micropython -m pystone

Browse available modules on PyPI. Standard library modules come from micropython-lib project.

External dependencies

Building Unix version requires some dependencies installed. For Debian/Ubuntu/Mint derivative Linux distros, install build-essential (includes toolchain and make), libffi-dev, and pkg-config packages.

Other dependencies can be built together with MicroPython. Oftentimes, you need to do this to enable extra features or capabilities. To build these additional dependencies, first fetch git submodules for them:

$ git submodule update --init

Use this same command to get the latest versions of dependencies, as they are updated from time to time. After that, in unix/ dir, execute:

$ make deplibs

This will build all available dependencies (regardless whether they are used or not). If you intend to build MicroPython with additional options (like cross-compiling), the same set of options should be passed to make deplibs. To actually enabled use of dependencies, edit unix/mpconfigport.mk file, which has inline descriptions of the options. For example, to build SSL module (required for upip tool described above), set MICROPY_PY_USSL to 1.

In unix/mpconfigport.mk, you can also disable some dependencies enabled by default, like FFI support, which requires libffi development files to be installed.

The STM version

The "stmhal" port requires an ARM compiler, arm-none-eabi-gcc, and associated bin-utils. For those using Arch Linux, you need arm-none-eabi-binutils and arm-none-eabi-gcc packages. Otherwise, try here: https://launchpad.net/gcc-arm-embedded

To build:

$ cd stmhal
$ make

You then need to get your board into DFU mode. On the pyboard, connect the 3V3 pin to the P1/DFU pin with a wire (on PYBv1.0 they are next to each other on the bottom left of the board, second row from the bottom).

Then to flash the code via USB DFU to your device:

$ make deploy

This will use the included tools/pydfu.py script. If flashing the firmware does not work it may be because you don't have the correct permissions, and need to use sudo make deploy. See the README.md file in the stmhal/ directory for further details.