Unknown device - Please HELP

USB AVR Programmer and SPI interface. Adafruit's USBtinyISP.

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orthrusfury
 
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Unknown device - Please HELP

Post by orthrusfury »

Hello there,

I have just soldered the UsbTinyISP Project recently. The issue:

My Windows 7 x64 does not recognize the device. I can't install the driver, as Windows classifies the device as an "unknown device".
The green LED is not even lit, which basicly means, that the USB enumeration does not work.

I have spend a lot of time debugging the electronics. But all electronic parts seem to be connected correctly.
The only difference is, that I don't use a ceramic oscillator. I used this one:
http://www.BANNED.de/ce/de/product/4451 ... 75-x-42-mm (hope you can briefly understand its data, as it is german)

Does this matter? I don't think so, eh? They both create 12Mhz.
All the other parts I've purchased have about the same electrical data and I use a normal USB A->B cable.

For debugging, I've added a blue LED directly to the VCC-Supply. When I plug in the USB cable, it does light up. But the green LED is turned off.
I should mention, that I programmed the USBTiny2313 by myself using PonyProg2000 and the main.hex file located in usbtinyisp/spi directory. I've already destroyed two of the USBTiny2313s, changing the FUSE Bits incorrectly. Note that this is my first project ever. The only chance for me to learn is to read and test. But this is my last ATTiny2313 and I don't want to destroy it, too. I use ponyProg for programming the ATTiny2313, and I don't know which FUSE Bits I have to set. In the project readme there was something about 0xDB. It did not work and now I don't have access to it anymore using the COM-Interface. My second ATTiny was programmed according to this screenshot: (http://www.wraimann.net/uploads/pics/BitConf.png)

Indeed, the oscillator was resonating. But my pc still didn't recognize the device properly. And again, I could not reprogram the ATTiny2313.

Please help me! What am I doing wrong?
Thanks in advance and sorry for my bad english

EDIT: Current FUSE bits are the following: http://s7.directupload.net/images/130819/o6w94qhq.png

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adafruit_support_rick
 
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Joined: Tue Mar 15, 2011 11:42 am

Re: Unknown device - Please HELP

Post by adafruit_support_rick »

Is this a kit you purchased from Adafruit or Watterott?
Can you post some clear, detailed, focused pictures of both sides of the board?

orthrusfury
 
Posts: 3
Joined: Mon Aug 19, 2013 4:30 am

Re: Unknown device - Please HELP

Post by orthrusfury »

First of all, thanks for your quick response. I think posting a photography of the board would not make sence, because I have done it completely by myself. I didn't purchase anything from adafruit or Watterott, because I live in Germany. Moreover I needed to add a COM programming interface to the circuit. That one does work, which basicly means, that I am able to program the ATTiny2313.

I could post some photographies, but not yet, because I am at work.
Furthermore, I have already inspected each connection about 10 times or so. Each LED and diode is connected properly, etc.

I am scared of setting the fuse bits now.
Do have a concrete plan on how to set them up properly? I've already read the ATTiny2313's datasheet for about 100 times. But I neither understand how to activate the external crystal nor what I have to take care of else.

Thanks again!

EDIT: Oh damn. I didn't know, that Watterott is a german store. Now it's too late

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adafruit_support_rick
 
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Joined: Tue Mar 15, 2011 11:42 am

Re: Unknown device - Please HELP

Post by adafruit_support_rick »

Our support here is limited to actual Adafruit products, so I don't think I'll be able to help you very much.

We have a complete list of distributors for the USBtinyISP kit on the product page.
We have two distributors in Germany:

Watterott Electronic
http://watterott.com/

Exp-tech
http://www.exp-tech.de/

If you're in the north-east or north-west, we also have distributors in the Netherlands, and Poland:
EZtronics
http://www.eztronics.nl/
(Netherlands)

Floris.cc
http://www.floris.cc
(Netherlands)

Nettigo
http://nettigo.pl/products/supplier/Adafruit
(Poland)

orthrusfury
 
Posts: 3
Joined: Mon Aug 19, 2013 4:30 am

Re: Unknown device - Please HELP

Post by orthrusfury »

Yeah I know that. But do you have a concrete hexadecimal value for the FUSE bits?
I did the exact same thing mentioned in the adafruit tutorial.

Is 0xDB correct, or 0xFF?

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