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Message
From: Marc Reinig<mreinig@p...>
Date: Sat Mar 6 04:48:35 CET 2004
Subject: [usb] some question about USB
> -----Original Message-----
> [mailto:usb-bounces@o...]On Behalf Of KO TOM
> Sent: Friday, March 05, 2004 5:57 PM
> Subject: RE: [usb] some question about USB
>
> According to the point :* The host can terminate a setup request
> before you have sent all that it
> asked for. It will do this by sending status or a new Setup.
>
> Can i ask how should i treat the request in the setup stage if
> the host terminate it without entering status stage. For example
> , the host send me a setup commanding "Set_Address" or
> "Set_Configuration" , but then the host send me another setup
> token requesting another command instead of sending me a IN token
> for a Status stage.
You abort the processing of the uncompleted Setup.
> Should i still set myself a new address
No, because for a SetAddress, the action is done after the status stage.
Since there would be no status stage, you would not change the address.
> or new configured value in this case ? or should i treat the request
> terminated and doing nothing ?
The second Setup command aborts the first.
> Also , if the host send me a reset after i have got a new address
> , should my device start from the beginning and listen to address
> 0 again ?
Of course, that's part of the definition of a RESET.
Marc Reinig
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