/** \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_Programmer * * Communications Device Class demonstration application. * This gives a simple reference application for implementing * a USB to Serial converter using the CDC class. Data communicated * over the USB Virtual Serial Port according to Atmel's AVR910 * protocol is used to program AVR MCUs that are * "In-System Programmable via SPI Port". * * After running this firmware for the first time on a new computer, * you will need to supply the .INF file located in this demo * project's directory as the device's driver when running under * Windows. This will enable Windows to use its inbuilt CDC drivers, * negating the need for custom drivers for the device. Other * Operating Systems should automatically use their own inbuilt * CDC-ACM drivers. * * Usage: * avrdude -vv -F -P COM7 -c avr910 -p t261 * Note -F flag which overrides signature check and enables programming * of any "In-System Programmable via SPI Port" AVR MCU. Part number, * t261, should be set to your target device. * avrdude -vv -F -P COM7 -c avr910 -p t261 -U flash:w:PROG.hex * PROG.hex is the hex file to program your t261 AVR with * avrdude -vv -F -P COM7 -b 115200 -c avr910 -p t261 -U flash:w:test.hex * The -b 115200 sets the SPI clock to 62.5kHz from the default 125kHz and may * work when the default programming speed fails. * AVROSP.exe -dATtiny261 -cCOM7 -rf * AVRosp is the Open Source AVR ISP Programming Software available from Atmel.com * * Note: on Linux systems, COM7 should be replaced with someting like /dev/ttyACM0 * You can determine this value by running dmesg after plugging in the device * Note: you must RESET the programmer after each use (AVRdude session). * * Note: If you experience errors with older devices, try changing DELAY_LONG * to a larger value, such as 0xFF in AVRISP_Programmer.c * * MISO, MOSI, and SCK are connected directly from the AVRopendous board * to the pin of the same functionality on the target. RESET pin on the target * can be connected either to SS (PB0), or PC2. Do not have any other pins * connected - especially HWB pin, to avoid unintentional behaviour. * * AVR910 functionality was overlayed on USBtoSerial functionality. * Keep this in mind when looking over the code. * Default target speed is 125kHz and corresponds to 19200 baud, which * is the default setting for AVRdude. * * Changing "Baud-Rate" will change the SPI speed. Defualt SPI clock speed * is 8Mhz / 4 = 2MHz. 8Mhz is the device clock speed. This is the setting at * 9600 baud. The following is a table of baud-rate vs. SPI Speed that will result * 9600 = 2Mhz * 14400 = 1MHz * 19200 = 125kHz (AVRdude Default) * 38400 = 250kHz * 57600 = 500kHz * 115200 = 62.5kHz * * * * * * * * * * * * * * * * * * * * * * * * * *
USB Mode:Device
USB Class:Communications Device Class (CDC)
USB Subclass:Abstract Control Model (ACM)
Relevant Standards:USBIF CDC Class Standard
Usable Speeds:Full Speed Mode
*/