Added command timeout to the AVRISP project so that incorrectly connected targets no longer freeze the device.

Removed string descriptors from the TeensyHID bootloader to reduce its size.

Complete combining of PDI and TPI target communication code files, stub out TINY NVM controller functions.

Rename PDITarget.c/.h to XPROGTarget.c/.h so that both PDI and TPI programming can be included in the one set of files.

Combine AVRISP project TPI and PDI lib directories - these protocols use the same underlying XPROG wrapper for the host-to-programmer command wrapping.

Correct include paths and makefile for the AVRISP project now that the protocol handlers are in seperate directories.

Make seperate ISP, PDI and TPI folders in the AVRISP project Lib subdirectory to hold each protocol's files.

Lower timeout periods in the AVRISP project. Increment firmware minor revision number in the AVRISP project so that it remains comatible with the latest AVRStudio without an upgrade warning.

Add new HotmailNotifier project, which changes a LED's colour based on the user's unread email count as sent from Windows Live Messenger.

Slightly speed up software USART in the AVRISP project - faster parity computation, ensure received data is byte aligned when receive is complete by throwing away the start bit during reception.

Use default NVM base address in the AVRISP programmer project in case the host programmer software doesn't set it correctly.

Fix project text files to refer to "project" instead of "demo".

Complete initial working revision of PDI programming in the AVRISP project (XMEGAs can now be programmed by the firmware).

Fix a bug in the Still Image Host Class driver where the returned block status code was being truncated.

Add programming support to the AVRISP project's PDI programming mode; paged memory writes are not currently functional.

Fix error in AVRISP programmer when repeatedly using PDI mode via the hardware USART due to the SendByte routine not clearing the Transmit Complete USART flag.

Add Doxygen documentation to the completed portions of the PDI programming protocol in the AVRISP project.

Use the PDI REPEAT instruction in the PDI programmer code to reduce protocol overhead and greatly improve transfer throughput. Switch bit-bang USART in the AVRISP project to Timer 1, so that Timer 0 can be used for hardware timeouts while waiting for the NVM bus or controller to become ready.

Fix NVM commands so that memory reads and CRC generations now work correctly using unoptimized PDI commands.

Split out NVM access code in the AVRISP project into a seperate NVMTarget.c source file and header. Make NVM register accesses use the NVM base address as set by the host, rather than using the fixed value from the XMEGA datasheet.

The AVRISP project can now enter PDI mode under both bit-bang and hardware USART connection modes, tested against the XPLAIN board hardware. Still need to complete higher level NVM access code so that the device's memories can be read and written.

PDI NVM enable is fast enough that bare polling is enough without a fixed delay in between each attempt. Make sure the USART transmitter is enabled explicitly when the USART is configured, so that repeated attempts to re-enter PDI mode don't fail due to TXEN not being set.

Fix PDI code - must send NVM enable key least significant byte first, need to make sure Tx and Rx is switched correctly including disabling the output on the Tx line when receiving.

Fix AVRISP PDI protocol - make sure inverted masks have the appropriate parenthesis around them, make sure the BREAK command for the hardware USART has 12 clock cycles exactly. Poll NVM Enable bit in the target's STATUS PDI register with a timeout, as it is not set immediately.

Change over AVRISP project to have both hardware USART and software USART modes for the PDI protocol, when enabled. Fix up PDI initialisation routines.

Fix PDITarget_ReceiveByte() not discarding the start bit properly, and reading in the bits inverted and in the wrong order.

Fix inverted bit-banged USART logic in the AVRISP project for PDI programming. Add a delay to the clock toggling in the AVRISP project to ensure that the programming speed does not exceed 10MHz under any conditions to satisfy the limits in the datasheet for all target voltages. Fix incorrect pin being used as the DATA in in PDI programming mode.