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SAM3 USB Drivers - Compliant?

Posted: Tue Feb 23, 2010 10:57 pm
by Custard
Hi..

I am evaluating a few USB solutions at the moment, including the ATSAM3U-EK. I've made a Win 98 Boot Disk using the SAM3 Eval and an SD Card.

The problem is, a PC won't boot from it. The PC pauses for a while but eventually gives up on it.

If I take the SD card and put into my STR9 Eval kit, it works. (The PC will boot from it.)

I even modified the "usb-device-massstorage-project-at91sam3u-ek" project to just have the SD LUN. Again, it works inside Windows but the PC can't boot from it.

Does anybody have any thoughts?

The SAM3 is a promising micro but things like this make me wonder about compatibility with standards...

Regards.

Re: SAM3 USB Drivers - Compliant?

Posted: Wed Feb 24, 2010 6:08 pm
by Custard
Also... the AT91 USB Framework Application Note (doc6263.pdf) refers to structures that don't appear to exist.

Has the framework changed and the documentation not been updated?