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micropython/esp8266
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Josef Gajdusek 967f3230f5 esp8266: Move initialization to system_init_done_cb 
Initializing too early caused some of the API functions (wifi_*) to fail
when called in main.py
 		2015-05-26 22:22:08 +03:00
..
scripts esp8266: Add support for frozen modules 2015-05-06 22:04:20 +01:00
Makefile esp8266: Add uos module 2015-05-26 22:18:07 +03:00
README.md esp8266/README: Fix typos. 2014-12-06 13:34:18 +02:00
eagle.rom.addr.v6.ld esp8266: Update ROM address map to vendor SDK 0.9.5. 2015-01-31 00:36:41 +02:00
esp8266.ld esp8266: Put more literal and text obj data in irom0_0_seg. 2015-05-13 14:49:14 +01:00
esp_mphal.c esp8266: Implement time functions 2015-05-12 23:47:18 +01:00
esp_mphal.h stmhal: Make pybstdio usable by other ports, and use it. 2015-02-13 15:04:53 +00:00
etshal.h esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
gccollect.c esp8266: Fix garbage collector by hard-coding stack end address. 2015-05-06 14:01:07 +01:00
gccollect.h esp8266: Fix garbage collector by hard-coding stack end address. 2015-05-06 14:01:07 +01:00
gchelper.s esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
main.c esp8266: Move initialization to system_init_done_cb 2015-05-26 22:22:08 +03:00
makeimg.py esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
modesp.c esp8266: Add .onsent callback support 2015-05-06 21:47:44 +01:00
modpyb.c esp8266: Add utime and pyb.RTC 2015-05-13 00:12:54 +01:00
modpyb.h esp8266: Add utime and pyb.RTC 2015-05-13 00:12:54 +01:00
modpybpin.c py: Overhaul and simplify printf/pfenv mechanism. 2015-04-16 14:30:16 +00:00
modpybrtc.c esp8266: Actually use the decimal part of system_rtc_clock_cali_proc() 2015-05-13 17:59:36 +02:00
modpybrtc.h esp8266: Add utime and pyb.RTC 2015-05-13 00:12:54 +01:00
moduos.c esp8266: Add uos module 2015-05-26 22:18:07 +03:00
modutime.c esp8266: Add utime and pyb.RTC 2015-05-13 00:12:54 +01:00
mpconfigport.h esp8266: Add uos module 2015-05-26 22:18:07 +03:00
qstrdefsport.h esp8266: Add uos module 2015-05-26 22:18:07 +03:00
strtoll.c esp8266: Change bignum from mpz to longlong; move some rodata to iram. 2014-11-28 14:58:25 +00:00
uart.c esp8266: Add configuration option for redirecting the built-in OS output 2015-05-13 18:03:00 +02:00
uart.h esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
uart_register.h esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
user_config.h esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
utils.c esp8266: Add esp.socket class, with ESP-style socket functionality. 2015-05-04 11:48:40 +01:00
utils.h esp8266: Add esp.socket class, with ESP-style socket functionality. 2015-05-04 11:48:40 +01:00

README.md

Micro Python port to ESP8266

This is a port of Micro Python to the Espressif ESP8266 wifi module.

Currently implemented features include:

  • REPL (Python prompt) over UART0.
  • 24k heap RAM available for Python code.
  • Garbage collector, exceptions.
  • Unicode support.
  • Builtin modules: gc, array, collections, io, struct, sys.
  • C long-long type used as bignum implementation (gives 64 signed ints).

Note that floating-point numbers are not supported.

On the TODO list:

  • Wifi support.
  • GPIO support.
  • Internal filesystem using the flash.
  • ...

Build instructions

The tool chain required for the build is the OpenSource ESP SDK, which can be found at https://github.com/pfalcon/esp-open-sdk. Clone this repository and run make in its directory to build and install the SDK locally.

Then, to build Micro Python for the ESP8266, just run:

$ make

This should produce binary images in the build/ subdirectory. To flash them to your ESP8266, use:

$ make deploy

This will use the esptool.py script to download the images. You must have your ESP module in the bootloader, and connected to a serial port on your PC. The default serial port is /dev/ttyACM0. To specify another, use, eg:

$ make PORT=/dev/ttyUSB0 deploy

The images that are built are:

  • firmware.elf-0x00000.bin: to be flashed at 0x00000
  • firmware.elf-0x10000.bin: to be flashed at 0x10000

There is also a combined image, made up of the above 2 binary files with the appropriate padding:

  • firmware-combined.bin: to be flashed at 0x00000