/** \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 * * * * * <table> * <tr> * <td><b>USB Mode:</b></td> * <td>Device</td> * </tr> * <tr> * <td><b>USB Class:</b></td> * <td>Communications Device Class (CDC)</td> * </tr> * <tr> * <td><b>USB Subclass:</b></td> * <td>Abstract Control Model (ACM)</td> * </tr> * <tr> * <td><b>Relevant Standards:</b></td> * <td>USBIF CDC Class Standard</td> * </tr> * <tr> * <td><b>Usable Speeds:</b></td> * <td>Full Speed Mode</td> * </tr> * </table> */Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.