Port of MicroPython to the mbed platform. See micropython-repl for an interactive program.
This a port of MicroPython to the mbed Classic platform.
This provides an interpreter running on the board's USB serial connection.
Getting Started
Import the micropython-repl program into your IDE workspace on developer.mbed.org. Compile and download to your board. Connect to the USB serial port in your usual manner. You should get a startup message similar to the following:
MicroPython v1.7-155-gdddcdd8 on 2016-04-23; K64F with ARM Type "help()" for more information. >>>
Then you can start using micropython. For example:
>>> from mbed import DigitalOut >>> from pins import LED1 >>> led = DigitalOut(LED1) >>> led.write(1)
Requirements
You need approximately 100K of flash memory, so this will be no good for boards with smaller amounts of storage.
Caveats
This can be considered an alpha release of the port; things may not work; APIs may change in later releases. It is NOT an official part part the micropython project, so if anything doesn't work, blame me. If it does work, most of the credit is due to micropython.
- Only a few of the mbed classes are available in micropython so far, and not all methods of those that are.
- Only a few boards have their full range of pin names available; for others, only a few standard ones (USBTX, USBRX, LED1) are implemented.
- The garbage collector is not yet implemented. The interpreter will gradually consume memory and then fail.
- Exceptions from the mbed classes are not yet handled.
- Asynchronous processing (e.g. events on inputs) is not supported.
Credits
- Damien P. George and other contributors who created micropython.
- Colin Hogben, author of this port.
py/makeversionhdr.py@10:33521d742af1, 2016-04-27 (annotated)
- Committer:
- Colin Hogben
- Date:
- Wed Apr 27 22:11:29 2016 +0100
- Revision:
- 10:33521d742af1
- Parent:
- 0:5868e8752d44
Update README and version
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
pythontech | 0:5868e8752d44 | 1 | """ |
pythontech | 0:5868e8752d44 | 2 | Generate header file with macros defining MicroPython version info. |
pythontech | 0:5868e8752d44 | 3 | |
pythontech | 0:5868e8752d44 | 4 | This script works with Python 2.6, 2.7, 3.3 and 3.4. |
pythontech | 0:5868e8752d44 | 5 | """ |
pythontech | 0:5868e8752d44 | 6 | |
pythontech | 0:5868e8752d44 | 7 | from __future__ import print_function |
pythontech | 0:5868e8752d44 | 8 | |
pythontech | 0:5868e8752d44 | 9 | import sys |
pythontech | 0:5868e8752d44 | 10 | import os |
pythontech | 0:5868e8752d44 | 11 | import datetime |
pythontech | 0:5868e8752d44 | 12 | import subprocess |
pythontech | 0:5868e8752d44 | 13 | |
pythontech | 0:5868e8752d44 | 14 | def get_version_info_from_git(): |
pythontech | 0:5868e8752d44 | 15 | # Python 2.6 doesn't have check_output, so check for that |
pythontech | 0:5868e8752d44 | 16 | try: |
pythontech | 0:5868e8752d44 | 17 | subprocess.check_output |
pythontech | 0:5868e8752d44 | 18 | subprocess.check_call |
pythontech | 0:5868e8752d44 | 19 | except AttributeError: |
pythontech | 0:5868e8752d44 | 20 | return None |
pythontech | 0:5868e8752d44 | 21 | |
pythontech | 0:5868e8752d44 | 22 | # Note: git describe doesn't work if no tag is available |
pythontech | 0:5868e8752d44 | 23 | try: |
pythontech | 0:5868e8752d44 | 24 | git_tag = subprocess.check_output(["git", "describe", "--dirty", "--always"], stderr=subprocess.STDOUT, universal_newlines=True).strip() |
pythontech | 0:5868e8752d44 | 25 | except subprocess.CalledProcessError as er: |
pythontech | 0:5868e8752d44 | 26 | if er.returncode == 128: |
pythontech | 0:5868e8752d44 | 27 | # git exit code of 128 means no repository found |
pythontech | 0:5868e8752d44 | 28 | return None |
pythontech | 0:5868e8752d44 | 29 | git_tag = "" |
pythontech | 0:5868e8752d44 | 30 | except OSError: |
pythontech | 0:5868e8752d44 | 31 | return None |
pythontech | 0:5868e8752d44 | 32 | try: |
pythontech | 0:5868e8752d44 | 33 | git_hash = subprocess.check_output(["git", "rev-parse", "--short", "HEAD"], stderr=subprocess.STDOUT, universal_newlines=True).strip() |
pythontech | 0:5868e8752d44 | 34 | except subprocess.CalledProcessError: |
pythontech | 0:5868e8752d44 | 35 | git_hash = "unknown" |
pythontech | 0:5868e8752d44 | 36 | except OSError: |
pythontech | 0:5868e8752d44 | 37 | return None |
pythontech | 0:5868e8752d44 | 38 | |
pythontech | 0:5868e8752d44 | 39 | try: |
pythontech | 0:5868e8752d44 | 40 | # Check if there are any modified files. |
pythontech | 0:5868e8752d44 | 41 | subprocess.check_call(["git", "diff", "--no-ext-diff", "--quiet", "--exit-code"], stderr=subprocess.STDOUT) |
pythontech | 0:5868e8752d44 | 42 | # Check if there are any staged files. |
pythontech | 0:5868e8752d44 | 43 | subprocess.check_call(["git", "diff-index", "--cached", "--quiet", "HEAD", "--"], stderr=subprocess.STDOUT) |
pythontech | 0:5868e8752d44 | 44 | except subprocess.CalledProcessError: |
pythontech | 0:5868e8752d44 | 45 | git_hash += "-dirty" |
pythontech | 0:5868e8752d44 | 46 | except OSError: |
pythontech | 0:5868e8752d44 | 47 | return None |
pythontech | 0:5868e8752d44 | 48 | |
pythontech | 0:5868e8752d44 | 49 | # Try to extract MicroPython version from git tag |
pythontech | 0:5868e8752d44 | 50 | if git_tag.startswith("v"): |
pythontech | 0:5868e8752d44 | 51 | ver = git_tag[1:].split("-")[0].split(".") |
pythontech | 0:5868e8752d44 | 52 | if len(ver) == 2: |
pythontech | 0:5868e8752d44 | 53 | ver.append("0") |
pythontech | 0:5868e8752d44 | 54 | else: |
pythontech | 0:5868e8752d44 | 55 | ver = ["0", "0", "1"] |
pythontech | 0:5868e8752d44 | 56 | |
pythontech | 0:5868e8752d44 | 57 | return git_tag, git_hash, ver |
pythontech | 0:5868e8752d44 | 58 | |
pythontech | 0:5868e8752d44 | 59 | def get_version_info_from_docs_conf(): |
pythontech | 0:5868e8752d44 | 60 | with open(os.path.join(os.path.dirname(sys.argv[0]), "..", "docs", "conf.py")) as f: |
pythontech | 0:5868e8752d44 | 61 | for line in f: |
pythontech | 0:5868e8752d44 | 62 | if line.startswith("release = '"): |
pythontech | 0:5868e8752d44 | 63 | ver = line.strip()[10:].strip("'") |
pythontech | 0:5868e8752d44 | 64 | git_tag = "v" + ver |
pythontech | 0:5868e8752d44 | 65 | ver = ver.split(".") |
pythontech | 0:5868e8752d44 | 66 | if len(ver) == 2: |
pythontech | 0:5868e8752d44 | 67 | ver.append("0") |
pythontech | 0:5868e8752d44 | 68 | return git_tag, "<no hash>", ver |
pythontech | 0:5868e8752d44 | 69 | return None |
pythontech | 0:5868e8752d44 | 70 | |
pythontech | 0:5868e8752d44 | 71 | def make_version_header(filename): |
pythontech | 0:5868e8752d44 | 72 | # Get version info using git, with fallback to docs/conf.py |
pythontech | 0:5868e8752d44 | 73 | info = get_version_info_from_git() |
pythontech | 0:5868e8752d44 | 74 | if info is None: |
pythontech | 0:5868e8752d44 | 75 | info = get_version_info_from_docs_conf() |
pythontech | 0:5868e8752d44 | 76 | |
pythontech | 0:5868e8752d44 | 77 | git_tag, git_hash, ver = info |
pythontech | 0:5868e8752d44 | 78 | |
pythontech | 0:5868e8752d44 | 79 | # Generate the file with the git and version info |
pythontech | 0:5868e8752d44 | 80 | file_data = """\ |
pythontech | 0:5868e8752d44 | 81 | // This file was generated by py/makeversionhdr.py |
pythontech | 0:5868e8752d44 | 82 | #define MICROPY_GIT_TAG "%s" |
pythontech | 0:5868e8752d44 | 83 | #define MICROPY_GIT_HASH "%s" |
pythontech | 0:5868e8752d44 | 84 | #define MICROPY_BUILD_DATE "%s" |
pythontech | 0:5868e8752d44 | 85 | #define MICROPY_VERSION_MAJOR (%s) |
pythontech | 0:5868e8752d44 | 86 | #define MICROPY_VERSION_MINOR (%s) |
pythontech | 0:5868e8752d44 | 87 | #define MICROPY_VERSION_MICRO (%s) |
pythontech | 0:5868e8752d44 | 88 | #define MICROPY_VERSION_STRING "%s.%s.%s" |
pythontech | 0:5868e8752d44 | 89 | """ % (git_tag, git_hash, datetime.date.today().strftime("%Y-%m-%d"), |
pythontech | 0:5868e8752d44 | 90 | ver[0], ver[1], ver[2], ver[0], ver[1], ver[2]) |
pythontech | 0:5868e8752d44 | 91 | |
pythontech | 0:5868e8752d44 | 92 | # Check if the file contents changed from last time |
pythontech | 0:5868e8752d44 | 93 | write_file = True |
pythontech | 0:5868e8752d44 | 94 | if os.path.isfile(filename): |
pythontech | 0:5868e8752d44 | 95 | with open(filename, 'r') as f: |
pythontech | 0:5868e8752d44 | 96 | existing_data = f.read() |
pythontech | 0:5868e8752d44 | 97 | if existing_data == file_data: |
pythontech | 0:5868e8752d44 | 98 | write_file = False |
pythontech | 0:5868e8752d44 | 99 | |
pythontech | 0:5868e8752d44 | 100 | # Only write the file if we need to |
pythontech | 0:5868e8752d44 | 101 | if write_file: |
pythontech | 0:5868e8752d44 | 102 | print("Generating %s" % filename) |
pythontech | 0:5868e8752d44 | 103 | with open(filename, 'w') as f: |
pythontech | 0:5868e8752d44 | 104 | f.write(file_data) |
pythontech | 0:5868e8752d44 | 105 | |
pythontech | 0:5868e8752d44 | 106 | if __name__ == "__main__": |
pythontech | 0:5868e8752d44 | 107 | make_version_header(sys.argv[1]) |