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Author Topic: Attiny85 USB interfacing possible?  (Read 1030 times)
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I've seen projects like Digispark and V-USB do this.

If I clock the tiny at 20MHz using an external crystal, would I be able to get USB interfacing using Arduino IDE?

If possible, can someone please direct me to a page on how to do this?

Thanks,

Tom, AVR noob
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I've seen projects like Digispark and V-USB do this.

If I clock the tiny at 20MHz using an external crystal, would I be able to get USB interfacing using Arduino IDE?

To program the same chip that's running the USB protocol?

It's not impossible, but it might be a lot of work.

If possible, can someone please direct me to a page on how to do this?

This page might help: https://tequals0.wordpress.com/2011/09/26/attiny45-based-usbtinyisp-programmer/
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As the guy who wrote the blog post, I would actually recommend this post instead:

http://tequals0.wordpress.com/2011/10/05/poeject-3-aka-the-v-usb/

It has the details of implementing vusb on a new mcu, as well as my python-usb struggs.

--t0
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