Atmega8 USB-I/O control

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#1
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Hi all
I'm sharing with you atmel's famous usb circuit with atmega8 circuit have 15 I/O pins. I used 15 led and 3 relay for see outs

File pass : tekniker_erhan

All files here

Test video





One bit change world change

Last Edited: Wed. Apr 21, 2010 - 02:52 PM
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Quote:
One bit change world change
Especcially if it is the RSTDSBL bit.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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You have used a password to lock all of the files.

What is the password?

Ross McKenzie ValuSoft Melbourne Australia

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Quote:
File pass : tekniker_erhan
??

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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js wrote:
Quote:
One bit change world change
Especcially if it is the RSTDSBL bit.

:)

One bit change world change

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js wrote:
Quote:
File pass : tekniker_erhan
??
Yeah, yeah ... I went straight to the all files link. Pity on this old man ...

Ross McKenzie ValuSoft Melbourne Australia

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js wrote:
Especcially ...
Huhh?? :lol:

Ross McKenzie ValuSoft Melbourne Australia

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Use the password inside the actual RAR file when open up not the one above, worked for me
using the along the same line from igor setup, neat

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There is something wrong with your schematic imo, you are using a 7833 regulator which has a dropout voltage of ~2V.
Therefore you can't be sure that it will actually give 3,3V, most likely it won't.

A low dropout regulator like LM1117 should be used instead.
Otherwise you could use a couple of 3,6V zeners on the data lines and power the avr with 5V.

Also you have forgotten the caps on the crystal and left the reset line without an external pullup but that's trivial... :wink:

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Must I Sign Up to download those files ?

tekniker_erhan, you could make a page in the "Projects" section, and upload the file with the project.

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Quote:

Must I Sign Up to download those files ?

Yes but I don't understand the question - you are signed up as "Kun.Io"?!?

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clawson wrote:
Quote:

Must I Sign Up to download those files ?

Yes but I don't understand the question - you are signed up as "Kun.Io"?!?

Sorry for the confusion, I ment those files at 4shared.com.

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if you please,

the attachment files not found.

kindly add files again,

BR.

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You do know that the "modern" place to find AVRs doing "bit-bang" USB is generally considered to be:

 

https://www.obdev.at/products/vu...

 

If you go there you find lots of things like:

 

https://www.obdev.at/products/vu...

 

Click through any of those to find complete(!) projects.

 

(I fear OP in this thread was last seen 7 years ago so the likelihood of finding his files seems remote - maybe Google the name "tekniker erhan" in case they've been published elsewhere)

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clawson wrote:
I fear OP in this thread was last seen 7 years ago so the likelihood of finding his files seems remote

Maybe a condition of publishing in the 'Projects' forum should be that all files must be attached - not just linked ... ?

 

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It was. The whole point of the "Projects" forum was to just make announcements (and maybe some discussion) about complete projects that had been added to:

 

https://community.atmel.com/proj...

 

Sadly OP here does not seem to have got the memo :-(