Port of MicroPython to the mbed platform. See micropython-repl for an interactive program.

Dependents:   micropython-repl

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.
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?

UserRevisionLine numberNew contents of line
pythontech 0:5868e8752d44 1 /*
pythontech 0:5868e8752d44 2 * This file is part of the Micro Python project, http://micropython.org/
pythontech 0:5868e8752d44 3 *
pythontech 0:5868e8752d44 4 * The MIT License (MIT)
pythontech 0:5868e8752d44 5 *
pythontech 0:5868e8752d44 6 * Copyright (c) 2013, 2014 Damien P. George
pythontech 0:5868e8752d44 7 *
pythontech 0:5868e8752d44 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
pythontech 0:5868e8752d44 9 * of this software and associated documentation files (the "Software"), to deal
pythontech 0:5868e8752d44 10 * in the Software without restriction, including without limitation the rights
pythontech 0:5868e8752d44 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
pythontech 0:5868e8752d44 12 * copies of the Software, and to permit persons to whom the Software is
pythontech 0:5868e8752d44 13 * furnished to do so, subject to the following conditions:
pythontech 0:5868e8752d44 14 *
pythontech 0:5868e8752d44 15 * The above copyright notice and this permission notice shall be included in
pythontech 0:5868e8752d44 16 * all copies or substantial portions of the Software.
pythontech 0:5868e8752d44 17 *
pythontech 0:5868e8752d44 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
pythontech 0:5868e8752d44 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
pythontech 0:5868e8752d44 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
pythontech 0:5868e8752d44 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
pythontech 0:5868e8752d44 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
pythontech 0:5868e8752d44 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
pythontech 0:5868e8752d44 24 * THE SOFTWARE.
pythontech 0:5868e8752d44 25 */
pythontech 0:5868e8752d44 26 #ifndef __MICROPY_INCLUDED_PY_SCOPE_H__
pythontech 0:5868e8752d44 27 #define __MICROPY_INCLUDED_PY_SCOPE_H__
pythontech 0:5868e8752d44 28
pythontech 0:5868e8752d44 29 #include "py/parse.h"
pythontech 0:5868e8752d44 30 #include "py/emitglue.h"
pythontech 0:5868e8752d44 31
pythontech 0:5868e8752d44 32 enum {
pythontech 0:5868e8752d44 33 ID_INFO_KIND_GLOBAL_IMPLICIT,
pythontech 0:5868e8752d44 34 ID_INFO_KIND_GLOBAL_EXPLICIT,
pythontech 0:5868e8752d44 35 ID_INFO_KIND_LOCAL, // in a function f, written and only referenced by f
pythontech 0:5868e8752d44 36 ID_INFO_KIND_CELL, // in a function f, read/written by children of f
pythontech 0:5868e8752d44 37 ID_INFO_KIND_FREE, // in a function f, belongs to the parent of f
pythontech 0:5868e8752d44 38 };
pythontech 0:5868e8752d44 39
pythontech 0:5868e8752d44 40 enum {
pythontech 0:5868e8752d44 41 ID_FLAG_IS_PARAM = 0x01,
pythontech 0:5868e8752d44 42 ID_FLAG_IS_STAR_PARAM = 0x02,
pythontech 0:5868e8752d44 43 ID_FLAG_IS_DBL_STAR_PARAM = 0x04,
pythontech 0:5868e8752d44 44 };
pythontech 0:5868e8752d44 45
pythontech 0:5868e8752d44 46 typedef struct _id_info_t {
pythontech 0:5868e8752d44 47 uint8_t kind;
pythontech 0:5868e8752d44 48 uint8_t flags;
pythontech 0:5868e8752d44 49 // when it's an ID_INFO_KIND_LOCAL this is the unique number of the local
pythontech 0:5868e8752d44 50 // whet it's an ID_INFO_KIND_CELL/FREE this is the unique number of the closed over variable
pythontech 0:5868e8752d44 51 uint16_t local_num;
pythontech 0:5868e8752d44 52 qstr qst;
pythontech 0:5868e8752d44 53 } id_info_t;
pythontech 0:5868e8752d44 54
pythontech 0:5868e8752d44 55 // scope is a "block" in Python parlance
pythontech 0:5868e8752d44 56 typedef enum { SCOPE_MODULE, SCOPE_FUNCTION, SCOPE_LAMBDA, SCOPE_LIST_COMP, SCOPE_DICT_COMP, SCOPE_SET_COMP, SCOPE_GEN_EXPR, SCOPE_CLASS } scope_kind_t;
pythontech 0:5868e8752d44 57 typedef struct _scope_t {
pythontech 0:5868e8752d44 58 scope_kind_t kind;
pythontech 0:5868e8752d44 59 struct _scope_t *parent;
pythontech 0:5868e8752d44 60 struct _scope_t *next;
pythontech 0:5868e8752d44 61 mp_parse_node_t pn;
pythontech 0:5868e8752d44 62 qstr source_file;
pythontech 0:5868e8752d44 63 qstr simple_name;
pythontech 0:5868e8752d44 64 mp_raw_code_t *raw_code;
pythontech 0:5868e8752d44 65 uint8_t scope_flags; // see runtime0.h
pythontech 0:5868e8752d44 66 uint8_t emit_options; // see compile.h
pythontech 0:5868e8752d44 67 uint16_t num_pos_args;
pythontech 0:5868e8752d44 68 uint16_t num_kwonly_args;
pythontech 0:5868e8752d44 69 uint16_t num_def_pos_args;
pythontech 0:5868e8752d44 70 uint16_t num_locals;
pythontech 0:5868e8752d44 71 uint16_t stack_size; // maximum size of the locals stack
pythontech 0:5868e8752d44 72 uint16_t exc_stack_size; // maximum size of the exception stack
pythontech 0:5868e8752d44 73 uint16_t id_info_alloc;
pythontech 0:5868e8752d44 74 uint16_t id_info_len;
pythontech 0:5868e8752d44 75 id_info_t *id_info;
pythontech 0:5868e8752d44 76 } scope_t;
pythontech 0:5868e8752d44 77
pythontech 0:5868e8752d44 78 scope_t *scope_new(scope_kind_t kind, mp_parse_node_t pn, qstr source_file, mp_uint_t emit_options);
pythontech 0:5868e8752d44 79 void scope_free(scope_t *scope);
pythontech 0:5868e8752d44 80 id_info_t *scope_find_or_add_id(scope_t *scope, qstr qstr, bool *added);
pythontech 0:5868e8752d44 81 id_info_t *scope_find(scope_t *scope, qstr qstr);
pythontech 0:5868e8752d44 82 id_info_t *scope_find_global(scope_t *scope, qstr qstr);
pythontech 0:5868e8752d44 83 id_info_t *scope_find_local_in_parent(scope_t *scope, qstr qstr);
pythontech 0:5868e8752d44 84 void scope_close_over_in_parents(scope_t *scope, qstr qstr);
pythontech 0:5868e8752d44 85
pythontech 0:5868e8752d44 86 #endif // __MICROPY_INCLUDED_PY_SCOPE_H__