espenc

This is a (relatively) proper implementation of enc28j60 driver for LWIP on ESP8266.

Both receive and transmit works properly now, but it hasn't been tested much yet. Code needs some major refactoring.

Usage

Copy or symlink driver/espenc.c, driver/espenc.h, driver/spi.c, driver/spi_register.h and driver/spi.h somewhere to your project.
Add espenc_init() in your user_init()
Connect ENC28J60 to ESP's SPI, connect INT pin to GPIO5 (or change it for anything you like in driver/spi.h.
PROFIT.

TODO

Move any framework specific code to separate headers
Port & test on esp8266-arduino
Port & test on Sming
Check latency (70ms?!)
Make it a little bit more stable
Support for hardware RESET
Does not work when wifi mode is set to NULL_MODE

License

As enc28j60 handling code is mostly based on Ethercard, this shall be GPLv2.