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.
Diff: mpconfigport.h
- Revision:
- 7:379d46fd02c2
- Parent:
- 5:1d19b8110e11
- Child:
- 8:6c5fa976a1e3
--- a/mpconfigport.h Mon Apr 25 19:55:21 2016 +0100
+++ b/mpconfigport.h Tue Apr 26 22:50:06 2016 +0100
@@ -29,7 +29,7 @@
// options to control how Micro Python is built
// The mbed online compiler uses different assembler syntax, so avoid
-#define MICROPY_NLR_SETJMP 1
+#define MICROPY_NLR_SETJMP (1)
#define MICROPY_ALLOC_PATH_MAX (256)
#define MICROPY_ALLOC_PARSE_CHUNK_INIT (16)
@@ -71,13 +71,14 @@
#define MICROPY_PY_STRUCT (1)
#define MICROPY_PY_SYS (1)
// Build "machine" module (port-specific)
-#define MICROPY_PY_MACHINE 1
+#define MICROPY_PY_MACHINE (1)
// Build "mbed" module
-#define MICROPY_PY_MBED 1
+#define MICROPY_PY_MBED (1)
// Select which mbed features wanted
-#define MICROPY_MBED_DIGITALOUT 1
-#define MICROPY_MBED_SERIAL 1
-#define MICROPY_PY_PINS 1
+#define MICROPY_MBED_DIGITALOUT (1)
+#define MICROPY_MBED_DIGITALIN (1)
+#define MICROPY_MBED_SERIAL (1)
+#define MICROPY_PY_PINS (1)
#define MICROPY_MODULE_FROZEN (0)
#define MICROPY_CPYTHON_COMPAT (0)
@@ -106,16 +107,15 @@
#define MP_PLAT_PRINT_STRN(str, len) mp_hal_stdout_tx_strn_cooked(str, len)
-#if 0
// extra built in names to add to the global namespace
-extern const struct _mp_obj_fun_builtin_t mp_builtin_open_obj;
+extern const struct _mp_obj_fun_builtin_t mp_builtin_help_obj;
#define MICROPY_PORT_BUILTINS \
- { MP_OBJ_NEW_QSTR(MP_QSTR_open), (mp_obj_t)&mp_builtin_open_obj },
-#endif
+ { MP_OBJ_NEW_QSTR(MP_QSTR_help), (mp_obj_t)&mp_builtin_help_obj },
// We need to provide a declaration/definition of alloca()
#include <alloca.h>
+#define MICROPY_PY_SYS_PLATFORM "mbed"
#define MICROPY_HW_BOARD_NAME "mbed"
#define MICROPY_HW_MCU_NAME "arm"
@@ -125,9 +125,9 @@
extern const struct _mp_obj_module_t mp_module_mbed;
extern const struct _mp_obj_module_t mp_module_pins;
#define MICROPY_PORT_BUILTIN_MODULES \
- { MP_ROM_QSTR(MP_QSTR_machine), MP_ROM_PTR(&mp_module_machine) }, \
- { MP_ROM_QSTR(MP_QSTR_mbed), MP_ROM_PTR(&mp_module_mbed) }, \
- { MP_ROM_QSTR(MP_QSTR_pins), MP_ROM_PTR(&mp_module_pins) }, \
+ { MP_ROM_QSTR(MP_QSTR_machine), MP_ROM_PTR(&mp_module_machine) }, \
+ { MP_ROM_QSTR(MP_QSTR_mbed), MP_ROM_PTR(&mp_module_mbed) }, \
+ { MP_ROM_QSTR(MP_QSTR_pins), MP_ROM_PTR(&mp_module_pins) }, \
// Use by readline.c
#define MICROPY_PORT_ROOT_POINTERS \