MCUs with USB device in PDIP and a open source toolchain ?

Jan 27, 2012 23 Replies

but not USB. DIPs are pretty thin on the ground in this segment, and even less with USB.

I've noticed that as well from Google posters. I don't know about your newsreader, but using Forte Agent if I press the "O" key it will line wrap the display so it fits in the window.

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cts/vusb/index.html

I didn't know that any USB stacks were done in hardware. I've never heard of that. Even the separate USB interface chips use a software stack and have an embedded CPU. The FTDI CPU is quite fast.

Rick

ATMega:

formatting link

Loose wording on my part.

The library in question implements all parts of a USB device, including the on the wire signalling, in software by manipulating GPIO lines. This means you can use it on a AVR which does not have any USB hardware support at all.

I was looking for a device which has a hardware USB module built in and only requires the traditional USB device software infrastructure to support it.

Simon.

Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP Microsoft: Bringing you 1980s technology to a 21st century world

Then there are hybrid solutions, somewhere in the middle. IIRC Ubicom had a shifter/bit-stuff block, and the next layer was all software. XMOS also have a similar 'minimal hardware' approach. You can start with XMOS, from $49

-jg

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