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:
Tue Apr 26 22:50:06 2016 +0100
Revision:
7:379d46fd02c2
Parent:
1:873275b0210d
Add help, DigitalIn etc.

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 MicroPython 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) 2013-2015 Damien P. George
pythontech 0:5868e8752d44 7 * Copyright (c) 2016 Paul Sokolovsky
pythontech 0:5868e8752d44 8 *
pythontech 0:5868e8752d44 9 * Permission is hereby granted, free of charge, to any person obtaining a copy
pythontech 0:5868e8752d44 10 * of this software and associated documentation files (the "Software"), to deal
pythontech 0:5868e8752d44 11 * in the Software without restriction, including without limitation the rights
pythontech 0:5868e8752d44 12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
pythontech 0:5868e8752d44 13 * copies of the Software, and to permit persons to whom the Software is
pythontech 0:5868e8752d44 14 * furnished to do so, subject to the following conditions:
pythontech 0:5868e8752d44 15 *
pythontech 0:5868e8752d44 16 * The above copyright notice and this permission notice shall be included in
pythontech 0:5868e8752d44 17 * all copies or substantial portions of the Software.
pythontech 0:5868e8752d44 18 *
pythontech 0:5868e8752d44 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
pythontech 0:5868e8752d44 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
pythontech 0:5868e8752d44 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
pythontech 0:5868e8752d44 22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
pythontech 0:5868e8752d44 23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
pythontech 0:5868e8752d44 24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
pythontech 0:5868e8752d44 25 * THE SOFTWARE.
pythontech 0:5868e8752d44 26 */
pythontech 0:5868e8752d44 27
pythontech 0:5868e8752d44 28 #include <stdint.h>
pythontech 0:5868e8752d44 29
pythontech 0:5868e8752d44 30 #include "py/obj.h"
pythontech 0:5868e8752d44 31 #include "py/runtime.h"
pythontech 0:5868e8752d44 32 #include "extmod/machine_mem.h"
pythontech 0:5868e8752d44 33
pythontech 0:5868e8752d44 34 #if MICROPY_PY_MACHINE
pythontech 0:5868e8752d44 35
Colin Hogben 1:873275b0210d 36 // Don't try to include mbed-specific files if proprocessing qstr
Colin Hogben 1:873275b0210d 37 #if __MBED__
pythontech 0:5868e8752d44 38 #include "cmsis.h"
Colin Hogben 1:873275b0210d 39 #endif
pythontech 0:5868e8752d44 40
pythontech 0:5868e8752d44 41 /** \brief Reset the board.
pythontech 0:5868e8752d44 42 *
pythontech 0:5868e8752d44 43 * Reset in a manner similar to pushing the external RESET button.
pythontech 0:5868e8752d44 44 */
pythontech 0:5868e8752d44 45 STATIC mp_obj_t machine_reset(void) {
pythontech 0:5868e8752d44 46 // Part of CMSIS API.
pythontech 0:5868e8752d44 47 NVIC_SystemReset();
pythontech 0:5868e8752d44 48 return mp_const_none;
pythontech 0:5868e8752d44 49 }
pythontech 0:5868e8752d44 50 MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_obj, machine_reset);
pythontech 0:5868e8752d44 51
pythontech 0:5868e8752d44 52 STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
Colin Hogben 7:379d46fd02c2 53 { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_machine) },
pythontech 0:5868e8752d44 54 { MP_ROM_QSTR(MP_QSTR_reset), MP_ROM_PTR(&machine_reset_obj) },
pythontech 0:5868e8752d44 55 { MP_ROM_QSTR(MP_QSTR_mem8), MP_ROM_PTR(&machine_mem8_obj) },
pythontech 0:5868e8752d44 56 { MP_ROM_QSTR(MP_QSTR_mem16), MP_ROM_PTR(&machine_mem16_obj) },
pythontech 0:5868e8752d44 57 { MP_ROM_QSTR(MP_QSTR_mem32), MP_ROM_PTR(&machine_mem32_obj) },
pythontech 0:5868e8752d44 58 };
pythontech 0:5868e8752d44 59
pythontech 0:5868e8752d44 60 STATIC MP_DEFINE_CONST_DICT(machine_module_globals, machine_module_globals_table);
pythontech 0:5868e8752d44 61
pythontech 0:5868e8752d44 62 const mp_obj_module_t mp_module_machine = {
pythontech 0:5868e8752d44 63 .base = { &mp_type_module },
Colin Hogben 7:379d46fd02c2 64 .name = MP_QSTR_machine,
pythontech 0:5868e8752d44 65 .globals = (mp_obj_dict_t*)&machine_module_globals,
pythontech 0:5868e8752d44 66 };
pythontech 0:5868e8752d44 67
pythontech 0:5868e8752d44 68 #endif // MICROPY_PY_MACHINE