Colin Hogben
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/gc.h@0:5868e8752d44, 2016-04-16 (annotated)
- Committer:
- pythontech
- Date:
- Sat Apr 16 17:11:56 2016 +0000
- Revision:
- 0:5868e8752d44
Split off library from repl
Who changed what in which revision?
| User | Revision | Line number | New 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_GC_H__ |
| pythontech | 0:5868e8752d44 | 27 | #define __MICROPY_INCLUDED_PY_GC_H__ |
| pythontech | 0:5868e8752d44 | 28 | |
| pythontech | 0:5868e8752d44 | 29 | #include <stdint.h> |
| pythontech | 0:5868e8752d44 | 30 | |
| pythontech | 0:5868e8752d44 | 31 | #include "py/mpconfig.h" |
| pythontech | 0:5868e8752d44 | 32 | #include "py/misc.h" |
| pythontech | 0:5868e8752d44 | 33 | |
| pythontech | 0:5868e8752d44 | 34 | void gc_init(void *start, void *end); |
| pythontech | 0:5868e8752d44 | 35 | |
| pythontech | 0:5868e8752d44 | 36 | // These lock/unlock functions can be nested. |
| pythontech | 0:5868e8752d44 | 37 | // They can be used to prevent the GC from allocating/freeing. |
| pythontech | 0:5868e8752d44 | 38 | void gc_lock(void); |
| pythontech | 0:5868e8752d44 | 39 | void gc_unlock(void); |
| pythontech | 0:5868e8752d44 | 40 | bool gc_is_locked(void); |
| pythontech | 0:5868e8752d44 | 41 | |
| pythontech | 0:5868e8752d44 | 42 | // A given port must implement gc_collect by using the other collect functions. |
| pythontech | 0:5868e8752d44 | 43 | void gc_collect(void); |
| pythontech | 0:5868e8752d44 | 44 | void gc_collect_start(void); |
| pythontech | 0:5868e8752d44 | 45 | void gc_collect_root(void **ptrs, size_t len); |
| pythontech | 0:5868e8752d44 | 46 | void gc_collect_end(void); |
| pythontech | 0:5868e8752d44 | 47 | |
| pythontech | 0:5868e8752d44 | 48 | void *gc_alloc(size_t n_bytes, bool has_finaliser); |
| pythontech | 0:5868e8752d44 | 49 | void gc_free(void *ptr); // does not call finaliser |
| pythontech | 0:5868e8752d44 | 50 | size_t gc_nbytes(const void *ptr); |
| pythontech | 0:5868e8752d44 | 51 | void *gc_realloc(void *ptr, size_t n_bytes, bool allow_move); |
| pythontech | 0:5868e8752d44 | 52 | |
| pythontech | 0:5868e8752d44 | 53 | typedef struct _gc_info_t { |
| pythontech | 0:5868e8752d44 | 54 | size_t total; |
| pythontech | 0:5868e8752d44 | 55 | size_t used; |
| pythontech | 0:5868e8752d44 | 56 | size_t free; |
| pythontech | 0:5868e8752d44 | 57 | size_t num_1block; |
| pythontech | 0:5868e8752d44 | 58 | size_t num_2block; |
| pythontech | 0:5868e8752d44 | 59 | size_t max_block; |
| pythontech | 0:5868e8752d44 | 60 | } gc_info_t; |
| pythontech | 0:5868e8752d44 | 61 | |
| pythontech | 0:5868e8752d44 | 62 | void gc_info(gc_info_t *info); |
| pythontech | 0:5868e8752d44 | 63 | void gc_dump_info(void); |
| pythontech | 0:5868e8752d44 | 64 | void gc_dump_alloc_table(void); |
| pythontech | 0:5868e8752d44 | 65 | |
| pythontech | 0:5868e8752d44 | 66 | #endif // __MICROPY_INCLUDED_PY_GC_H__ |