From 1adf8174cf06760fdb35476744e3446e9c2eda02 Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Mon, 3 Sep 2012 20:52:40 +0000 Subject: Add additional driver documentation to the AVRISP-MKII clone programmer project. --- Projects/AVRISP-MKII/AVRISP-MKII.txt | 57 ++++++++++++++++++++++++++---------- 1 file changed, 42 insertions(+), 15 deletions(-) (limited to 'Projects/AVRISP-MKII') diff --git a/Projects/AVRISP-MKII/AVRISP-MKII.txt b/Projects/AVRISP-MKII/AVRISP-MKII.txt index 2cf8ceb47..d4eaa1764 100644 --- a/Projects/AVRISP-MKII/AVRISP-MKII.txt +++ b/Projects/AVRISP-MKII/AVRISP-MKII.txt @@ -6,7 +6,7 @@ /** \mainpage AVRISP MKII Programmer Project * - * \section Sec_Compat Project Compatibility: + * \section Sec_Compat Project Compatibility * * The following list indicates what microcontrollers are compatible with this project. * @@ -15,7 +15,7 @@ * \li Series 4 USB AVRs (ATMEGAxxU4) * \li Series 2 USB AVRs (AT90USBxx2, ATMEGAxxU2) - 8KB versions with reduced features only * - * \section Sec_Info USB Information: + * \section Sec_Info USB Information * * The following table gives a rundown of the USB utilization of this project. * @@ -42,28 +42,55 @@ * * * - * \section Sec_Description Project Description: + * \section Sec_Description Project Description * - * Firmware for an Atmel Studio/AVRStudio compatible AVRISP-MKII clone programmer. This project will enable the USB + * Firmware for an Atmel Studio/AVR Studio 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 - * Atmel Studio/AVRStudio or with any software capable of driving a real Atmel AVRISP-MKII programmer. In its most - * basic form, it allows for the programming of AVRs at the programmer's VCC voltage from within Atmel Studio/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. + * Atmel Studio/AVR Studio or with any software capable of driving a real Atmel AVRISP-MKII programmer. In its most + * basic form, it allows for the programming of AVR TINY, MEGA and XMEGA devices aat the programmer's VCC voltage from + * within Atmel Studio/AVR Studio 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 target AVRs running at a different voltage to the programmer. * * This device spoofs Atmel's official AVRISP-MKII device PID so that it remains compatible with Atmel's AVRISP-MKII - * drivers. When prompted, direct your OS to install Atmel's AVRISP-MKII drivers provided with Atmel Studio/AVRStudio. + * drivers. When prompted, direct your OS to install Atmel's AVRISP-MKII drivers provided with Atmel Studio/AVR Studio. * * Note that this design currently has the following limitations: * - No reversed/shorted target connector detection and notification * - A separate header is required for each of the ISP, PDI and TPI programming protocols that the user wishes to use * - * On AVR models with an ADC converter, AVCC should be tied to 5V (e.g. VBUS) and the \c 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 a fixed 3.3V level at all times. + * On AVR models with an ADC converter, the USB AVR's AVCC pin should be tied to 5V (e.g. VBUS) and the + * \c 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 a fixed 3.3V level at all times + * which should allow the programmer to remain compatible at the protocol level with all AVR devices. * * While this application can be compiled for USB AVRs with as little as 8KB of FLASH, for full functionality 16KB or more - * of FLASH is required. On 8KB devices, ISP or PDI/TPI programming support can be disabled to reduce program size. + * of FLASH is required. On 8KB devices, ISP or PDI/TPI protocol programming support can be disabled to reduce program size. + * + * \section Sec_Installation Installation + * The programmer supports multiple platforms, both Windows and Linux. + * + * \subsection SSec_LinuxInstallation Linux Installation + * On Linux systems, the programmer should be usable out of the box with no special setup other than (on some systems) + * editing of the system permissions to allow the programmer to be used from a non-elevated (root) context. The programmer + * is compatible with the free open source AVRDude programming software project. + * + * \subsection SSec_WindowsInstallation Windows Installation + * On Windows systems, due to an unfortunate limitation of the USB AVR devices and the driver used in the official AVR + * Studio/Atmel Studio platform, the programmer cannot be made compatible with AVRDude and AVR Studio/Atmel Studio at the + * same time. Instead, the programmer will be compatible with the official Atmel software by default, with a recompilation + * with the \c LIBUSB_DRIVER_COMPAT token (see \ref Sec_Options) being required to use the alternative libUSB driver + * compatibility mode that will allow the programmer to work under AVRDude on Windows. + * + * If compiled for Atmel Studio/AVR Studio compatibility, install the Jungo device drivers that ship with the Atmel software. + * If compiled in the alternative libUSB compatibility mode for AVRDude use, install the libUSB drivers that are included + * with your compiled copy of AVRDude, or create them using the libUSB-Win32 (http://sourceforge.net/projects/libusb-win32) + * project. + * + * For convenience, the programmer will report two different serial numbers depending on the firmware compatibity mode, so + * that the correct driver can be installed for the matching firmware. If the \c RESET_TOGGLES_LIBUSB_COMPAT compile option + * is used (see \ref Sec_Options) this allows for an easy way to automatically switch device drivers along with the firmware + * compatibility mode. * * \section Sec_ISP ISP Connections * Connections to the device for SPI programming (when enabled): @@ -292,8 +319,8 @@ * * LIBUSB_DRIVER_COMPAT * AppConfig.h - * Define to switch to a non-standard endpoint scheme, breaking compatibility with AVRStudio under Windows but making - * the code compatible with software such as avrdude (all platforms) that use the libUSB driver. + * Define to switch to a non-standard endpoint scheme, breaking compatibility with Atmel Studio/AVR Studio under Windows but + * making the code compatible with software such as avrdude (all platforms) that use the libUSB driver. * * \note This option is incompatible with \c RESET_TOGGLES_LIBUSB_COMPAT. * -- cgit v1.2.3