This is the source code for libkakapo, a set of drivers for the AVR XMEGA series of chips. The "Kakapo" development board uses such a chip.

This library has been designed so that you can either use it for the Kakapo development board directly, or link to parts of it from your own project/board.

More about Kakapo: http://hairy.geek.nz/kakapo

Functions that this library provides:

• Simple initalisation of a Kakapo board (clock, LEDs)
• Simplified task scheduling using a run queue with two prio levels
• Ringbuffer for char-orientated uses
• Drivers for the following XMEGA hardware modules:
  • System/Perpherial clock configuration
  • SPI (master only)
  • TWI (aka I2C, SMBus; master only)
  • USART (interupt driven, buffered, incl. stdio)
  • ADC (ADCA only)
  • NVM (usersig and serial number only)
  • RTC
  • Timers (Type 0,1 only)
• Drivers for the following ICs
  • WizNet W5500 (incl. stdio for TCP connections)
• Most XMEGA chips supported, with automatic detection of resources available on the part

Most drivers support hooking their respective interupts with user-provided functions.

This code is provided under the GNU LGPL version 3. Closed-source projects may link against this library, but modifications to the library must be made available under the LGPL to others.