/** \file * * This file contains special DoxyGen information for the generation of the main page and other special * documentation pages. It is not a project source file. */ /** \mainpage AVRISP MKII Programmer Project * * \section SSec_Compat Demo Compatibility: * * The following table indicates what microcontrollers are compatible with this demo. * * - AT90USB1287 * - AT90USB1286 * - AT90USB647 * - AT90USB646 * - ATMEGA32U6 * - ATMEGA32U4 * - ATMEGA16U4 * - AT90USB162 * - AT90USB82 * * \section SSec_Info USB Information: * * The following table gives a rundown of the USB utilization of this demo. * * * * * * * * * * * * * * * * * * * * * * *

USB Mode:	Device
USB Class:	Vendor Specific Class
USB Subclass:	N/A
Relevant Standards:	Atmel AVRISP MKII Protocol Specification
Usable Speeds:	Full Speed Mode

* * \section SSec_Description Project Description: * * Firmware for an AVRStudio compatible AVRISP-MKII clone programmer. This project will enable the USB AVR series of * microcontrollers to act as a clone of the official Atmel AVRISP-MKII programmer, usable within AVRStudio. In its * most basic form, it allows for the programming of 5V AVRs from within AVRStudio with no special hardware other than * the USB AVR and the parts needed for the USB interface. If the user desires, more advanced circuits incorporating * level conversion can be made to allow for the programming of 3.3V AVR designs. * * This device spoofs Atmel's official AVRISP-MKII device PID so that it remains compatible with Atmel's AVRISP-MKII * drivers. When promted, direct your OS to install Atmel's AVRISP-MKII drivers provided with AVRStudio. * * Note that this design currently has several limitations: * - Minimum target clock speed of 500KHz due to hardware SPI used * - No reversed/shorted target connector detection and notification * * On AVR models with an ADC converter, ACC should be tied to 5V (e.g. VBUS) and the VTARGET_ADC_CHANNEL token should be * set to an appropriate ADC channel number in the project makefile for VTARGET detection to operate correctly. On models * without an ADC converter, VTARGET will report at a fixed 5V level. * * Connections to the device are simple: * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Programmer Pin:	Target Device Pin:
MOSI	PDI
MISO	PDO
SCLK	SCLK
GND	GND
ADCx ¹	VTARGET
PORTx.y ²	/RESET

* * ¹ Optional, see \ref SSec_Options section - for USB AVRs with ADC modules only \n * ² See \ref SSec_Options section * * \section SSec_Options Project Options * * The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value. * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Define Name:	Location:	Description:
RESET_LINE_PORT	Makefile CDEFS	PORT register for the programmer's target RESET line.
RESET_LINE_DDR	Makefile CDEFS	DDR register for the programmer's target RESET line.
RESET_LINE_MASK	Makefile CDEFS	Mask for the programmer's target RESET line on the chosen port. Must not be the AVR's /SS pin.
VTARGET_ADC_CHANNEL	Makefile CDEFS	ADC channel number (on supported AVRs) to use for VTARGET level detection.