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:
2:c89e95946844
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_EMITGLUE_H__
pythontech 0:5868e8752d44 27 #define __MICROPY_INCLUDED_PY_EMITGLUE_H__
pythontech 0:5868e8752d44 28
pythontech 0:5868e8752d44 29 #include "py/obj.h"
pythontech 0:5868e8752d44 30
pythontech 0:5868e8752d44 31 // These variables and functions glue the code emitters to the runtime.
pythontech 0:5868e8752d44 32
pythontech 0:5868e8752d44 33 typedef enum {
pythontech 0:5868e8752d44 34 MP_CODE_UNUSED,
pythontech 0:5868e8752d44 35 MP_CODE_RESERVED,
pythontech 0:5868e8752d44 36 MP_CODE_BYTECODE,
pythontech 0:5868e8752d44 37 MP_CODE_NATIVE_PY,
pythontech 0:5868e8752d44 38 MP_CODE_NATIVE_VIPER,
pythontech 0:5868e8752d44 39 MP_CODE_NATIVE_ASM,
pythontech 0:5868e8752d44 40 } mp_raw_code_kind_t;
pythontech 0:5868e8752d44 41
Colin Hogben 2:c89e95946844 42 typedef struct _mp_raw_code_t {
Colin Hogben 2:c89e95946844 43 mp_raw_code_kind_t kind : 3;
Colin Hogben 2:c89e95946844 44 mp_uint_t scope_flags : 7;
Colin Hogben 2:c89e95946844 45 mp_uint_t n_pos_args : 11;
Colin Hogben 2:c89e95946844 46 union {
Colin Hogben 2:c89e95946844 47 struct {
Colin Hogben 2:c89e95946844 48 const byte *bytecode;
Colin Hogben 2:c89e95946844 49 const mp_uint_t *const_table;
Colin Hogben 2:c89e95946844 50 #if MICROPY_PERSISTENT_CODE_SAVE
Colin Hogben 2:c89e95946844 51 mp_uint_t bc_len;
Colin Hogben 2:c89e95946844 52 uint16_t n_obj;
Colin Hogben 2:c89e95946844 53 uint16_t n_raw_code;
Colin Hogben 2:c89e95946844 54 #endif
Colin Hogben 2:c89e95946844 55 } u_byte;
Colin Hogben 2:c89e95946844 56 struct {
Colin Hogben 2:c89e95946844 57 void *fun_data;
Colin Hogben 2:c89e95946844 58 const mp_uint_t *const_table;
Colin Hogben 2:c89e95946844 59 mp_uint_t type_sig; // for viper, compressed as 2-bit types; ret is MSB, then arg0, arg1, etc
Colin Hogben 2:c89e95946844 60 } u_native;
Colin Hogben 2:c89e95946844 61 } data;
Colin Hogben 2:c89e95946844 62 } mp_raw_code_t;
pythontech 0:5868e8752d44 63
pythontech 0:5868e8752d44 64 mp_raw_code_t *mp_emit_glue_new_raw_code(void);
pythontech 0:5868e8752d44 65
pythontech 0:5868e8752d44 66 void mp_emit_glue_assign_bytecode(mp_raw_code_t *rc, const byte *code, mp_uint_t len,
pythontech 0:5868e8752d44 67 const mp_uint_t *const_table,
pythontech 0:5868e8752d44 68 #if MICROPY_PERSISTENT_CODE_SAVE
pythontech 0:5868e8752d44 69 uint16_t n_obj, uint16_t n_raw_code,
pythontech 0:5868e8752d44 70 #endif
pythontech 0:5868e8752d44 71 mp_uint_t scope_flags);
pythontech 0:5868e8752d44 72 void mp_emit_glue_assign_native(mp_raw_code_t *rc, mp_raw_code_kind_t kind, void *fun_data, mp_uint_t fun_len, const mp_uint_t *const_table, mp_uint_t n_pos_args, mp_uint_t scope_flags, mp_uint_t type_sig);
pythontech 0:5868e8752d44 73
Colin Hogben 2:c89e95946844 74 mp_obj_t mp_make_function_from_raw_code(const mp_raw_code_t *rc, mp_obj_t def_args, mp_obj_t def_kw_args);
Colin Hogben 2:c89e95946844 75 mp_obj_t mp_make_closure_from_raw_code(const mp_raw_code_t *rc, mp_uint_t n_closed_over, const mp_obj_t *args);
pythontech 0:5868e8752d44 76
pythontech 0:5868e8752d44 77 #if MICROPY_PERSISTENT_CODE_LOAD
pythontech 0:5868e8752d44 78 typedef struct _mp_reader_t {
pythontech 0:5868e8752d44 79 void *data;
pythontech 0:5868e8752d44 80 mp_uint_t (*read_byte)(void *data);
pythontech 0:5868e8752d44 81 void (*close)(void *data);
pythontech 0:5868e8752d44 82 } mp_reader_t;
pythontech 0:5868e8752d44 83
pythontech 0:5868e8752d44 84 mp_raw_code_t *mp_raw_code_load(mp_reader_t *reader);
pythontech 0:5868e8752d44 85 mp_raw_code_t *mp_raw_code_load_mem(const byte *buf, size_t len);
pythontech 0:5868e8752d44 86 mp_raw_code_t *mp_raw_code_load_file(const char *filename);
pythontech 0:5868e8752d44 87 #endif
pythontech 0:5868e8752d44 88
pythontech 0:5868e8752d44 89 #if MICROPY_PERSISTENT_CODE_SAVE
pythontech 0:5868e8752d44 90 void mp_raw_code_save(mp_raw_code_t *rc, mp_print_t *print);
pythontech 0:5868e8752d44 91 void mp_raw_code_save_file(mp_raw_code_t *rc, const char *filename);
pythontech 0:5868e8752d44 92 #endif
pythontech 0:5868e8752d44 93
pythontech 0:5868e8752d44 94 #endif // __MICROPY_INCLUDED_PY_EMITGLUE_H__