An AT90USB1286 breakout board

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Z80
Posts: 4
Joined: Wed Jun 27, 2012 11:53 am

An AT90USB1286 breakout board

Post by Z80 » Sat Aug 11, 2012 3:11 am

The Leostick is a very useful device because of its on-chip USB transceiver, however it is too puny for ambitious firmware applications because of its 32K PROGMEM and 2.5K RAM sizes.

My current project is skirting near the upper limits of PROGMEM and despite careful coding and turning on all the relevant optimisation switches in gcc I am going to hit the ceiling soon.

A breakout board using an AT90USB1286 (like the Teensy 2.0++) would be a developer's dream. The problem with the Teensy 2.0++ is that although it is cheap and ticks all the boxes, buying them from the US is not cheap when you take into account the postage/shipping charges.

If you made a AT90USB1286 breakout board, and programmed it with the LUFA loader and included on it important things like a USB poly fuse (which the Teensy does not) you would have a very useful board that would enable people to develop larger embedded applications.

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