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micropython/esp8266
Damien George 4a5895c4eb
py: Disable stack checking by default; enable on most ports. 		10 years ago
..
Makefile esp8266: Prefix includes with py/; remove need for -I../py. 10 years ago
README.md esp8266/README: Fix typos. 10 years ago
eagle.rom.addr.v6.ld esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
esp8266.ld esp8266: Move more rodata to irom section. 10 years ago
esp_mphal.c esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
esp_mphal.h esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
etshal.h esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
gccollect.c esp8266: Prefix includes with py/; remove need for -I../py. 10 years ago
gccollect.h esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
gchelper.s esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
main.c py: Put all global state together in state structures. 10 years ago
makeimg.py esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
modpyb.c esp8266: Prefix includes with py/; remove need for -I../py. 10 years ago
mpconfigport.h py: Disable stack checking by default; enable on most ports. 10 years ago
pybstdio.c esp8266: Prefix includes with py/; remove need for -I../py. 10 years ago
pybstdio.h esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
qstrdefsport.h esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
strtoll.c esp8266: Change bignum from mpz to longlong; move some rodata to iram. 10 years ago
uart.c esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
uart.h esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
uart_register.h esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago
user_config.h esp8266: New port of Micro Python to ESP8266 wifi module. 10 years ago

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