2) Unpack the libusb zip and run the inf-wizard.exe in the bin folder AS ADMINISTRATOR3) Select the avrisp mkII from the list that appears when you run inf-wizard then click next through the wizard.4) When prompted select a place on your pc to save the .inf file that the wizard will create. (If you loose the file in the future you can simply repeat the task)5) When prompted click OK to install the driver.If required you can run the Atmel Studio 6.1 Jungo driver install again and revert to Atmel Studio drivers with the avrispmkII. It is probably also possible to switch back to arduino/avrdude mode by reapplying the .inf created in step 6) via device manager

Sorry about the formatting of the following, it is my fault and caused by conversion from ms word. This update was submiited by Brian M. It explains how to make both the Arduino and Atmel Studio Native commands to work using the same usb driver


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I also tried an XP install via BootCamp - both the Win driver and AVRISP mkII drivers appeared in the device manager, and there was no Code 10 error, but I still received the "Connect failed" message on connect attempts from AVR Studio.

Under windows, find the device in the device manager, and go to it's properties. Find the Hardware IDs in the tabs, and add them in here, then we can try to point you to the right driver for the programmer.

The best way to understand what is going on during this week is to draw it. I want to start by thanking Matt Edwards for his help and patience when I put on a confused face after hesaid things like "AVR fabISP GCC FTDI," and countless other acronyms that I am still not all too familiar with. The following image shows exactly what is happening when I say I programmed my board. This image also helped me debug when, of course, my board did not work. The following tutorial is assuming you are using a Windows 7 64-bit machine.

To get started with Arduino, first install the Arduino IDE from Then, you will need to add ATtiny support to the ArduinoIDE. The best way is to follow the directions from =1695, a great tutorial from the MIT Media Lab.

Also, in the meantime, let us add drivers for both our FabISP and for the AVRISP MkII.The FabISP driver (USBTinyISP) can be downloaded from -usbtinyisp-drivers-for-64-bit-windows-7/.The AVRISP MkII USB driver for Arduino can be downloaded from -MkII-Usb-Driver-for-Arduino.aspx.

The hardware setup is best explained with the schematic above. You will need a computer with two USB ports that has the drivers in the Software Setup section installed. You will then need an ISP (In-System Programmer). The point of the programmer is to interpret the compiled code in your computer and translate it into something your target board can understand.To connect the ISP to your target board, you will have a 2x3, six end connector. The off-the-shelfAVRISP MkII has one attached. However, if you are going to use your previously made FabISP, you willhave to make this cable yourself.

For power, you can either create an external power source (3-5V) to power your board, or you can use an FTDI cable, like the one seen above. The FTDI cable is used to move information from your target board to your computer, but for the time being, I will use if to power my board.A third way to power your board is to use your FabISP. I tried this, by removing only one 0 ohm resistor. However, I couldn't get it to work =/.Finally, you will need a target/circuit/LED board. Just a heads up; I will use these three names interchangeably for this tutorial. If you have all this, you are ready to program your board!

Arduino IDE has built-in examples that you should use. I used the "Blink" and the "Button" examples. Be sure to change the pin number on the example to the pin associated with your LED or button. Caution! Pin numberings on Arduino don't always match the physicalorder on the chip. The image below show the physical order (inside) and the Arduino pin number (Not in parenthesis, next to the pin drawing).

1. First, select the appropriate board and timing source. If you followed the steps in Software Setup above, you should be able to pick "ATtiny44 (internal 1 MHz clock)" fromboard submenu under the Tools menu. Although you have likely put a 20 Mhz crystal on your board, start with 1 MHz to ensure it is working properly. 2. Then, select the appropriate programmer. If you are using an off-the-shelf AVR MkII, pick "AVRISP MkII" under the programmer submenu under the Tools menu. If you are using the FabISP you build earlier in the semester, pick "USBtinyISP." 3. Then, select "Burn bootloader" to set the fuses and get timing right. Even if you have a crystal, again, I suggest starting with an internal clock, just to be safe.4. Finally, select "Upload using programmer" to upload your program.

The first setup I tried was using the Arduino IDE, an AVRISP MkII programmer, and my LED board(Mark I) from Electronics Design. And of course, it did not work the first time. I was sure the AVR MkII and FTDI cable were fine since they were purchased and used by others before me. My six lead connector was also fine, so it must have been my LED board that was acting up.

After not finding out what was wrong with my board using a voltmeter, I tested my setup with Richard Li's board. I was able to successfully program his board to blink. Richard inspected myboard and was able to find a flaw! I accidentally connected a trace from the power supply in my FTDI connector, through my two LEDs (and resistors), and ending at VCC of my 6 pin connector. Essentially, the pins never lit up because they were not connected to ground. Well then, I tried connected them to ground haha. I used an xacto knife to cut the trace and soldered a wire from my LED to the ground connector of my 6 pin connectors.

I tried removing just one 0 ohm resistor, to power my LED board through the FabISPboard, but it did not work. So I resoldered the second 0 ohm resistor, and reprogrammed myboard following the tutorial by Anna France.

Your target board is dead/malfunctioning/not powered, or the connection isbroken. Double check for power and electrical problems on the target board. Check your programming cable for damage and make sure it's oriented correctly. Connectors are often where bad solder joints hide.

avrdude can't find your programmer. Did you tell it to look for an AVRISP insteadof a USBtiny, or vice versa? Are you sure your FabISP works? Check the AVRDUDE line in your Makefile or the Programmer option in Arduino, or try another programmer.

avrdude thinks you should have a different chip than you do. Check the DEVICE line in your Makefile or Board option in Arduino. Check the chip you actually put on your board. Be careful about "p" or "v" variants.

If you successfully programmed your board, but your LED isn't blinking. This could be many problems, but first check your pin assignments, especially with Arduino.Arduino pin numberings don't always match the physical order on the chip (see page referenced on the left). After that, check your schematic, hardware, and overallprogram logic.

yes i am using the Arduino 1.0 IDE software. I have designed my own board using the NANO as a base. So the processor section is identical. Basically I need to claw back the extra program space used by the bootloader for my software. I have followed your instructions and have got it to upload via the usb by editing the board.txt and preference.txt files. But i want to dump the USB loading part of my circuit and load the software via AVRISP MKII. it keeps looking for a usb connection.

I had this message before. Turned out the uno was not recognised by windows (check device manager for the uno).

If it is unrecognised, please use the drivers located in the arduino folder to install the correct drivers.

The driver file for the AVRISP MKII is actually located here in the Arduino Program C:\arduino-1.0.1\hardware\tools\avr\utils\libusb\bin. The libusb0.dll will not work by itself in XP SP3 with all of the updates and you have to have the inf avrisp2.inf to go with it. That is where the confusion was coming from. I got mine to work after searching for a couple of hours. Thanks

Also if you have an arduino uno already you do not need a programmer at all. There is a way to program it directly from the arduino to the bread board. Those instructions can be found here. 

Thank you

Like every other USB device, an USB programmer requires a windows driver. Some programmers use drivers that are provided (built into) by windows. For example the KamProg uses the HID class and does not require an additional third party driver.

Now the programmer will work in BASCOM. Just select the proper programmer, and timeout of 100 ms. You can try lower time outs too to make it quicker. When you get errors, increase the time out. 100 ms should do for all programmers. 152ee80cbc

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