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Message
From: hsr2@p...<hsr2@p...>
Date: Wed Apr 7 03:35:14 CEST 2004
Subject: [usb] How to send 0 packet using USB 2.0 Function Core
Hi Sir,
I think you want to response In-data packet with Zero for set_address.
In my case, I have set register before the IN-PID as following:
WIF_WB_RF(18'h00040,32'h0301_0000); // Endpoint 0: CSR // Set
MaxPackSize = 0
FYI,
Jeff
----- Original Message -----
From: zhangchun<zhangchun@t...>
To:
Date: Fri Apr 2 08:51:39 CEST 2004
Subject: [usb] How to send 0 packet using USB 2.0 Function Core
> Do you mean set EP_CSR register of corresponding endpoint?
> >From the spec (Rev 1.4) of USB 2.0 Function Core, there is no
> TXZERO bit.
> In EP_CSR register, bit 10:0 is maxpayload size.
> regards,
> chun
> ----- Original Message -----
> From: "Jain, Vivek (Vivek)" <vivekjain@a...>
> To: "Discussion list about free,open source USB IP core"
> <usb@o...>
> Sent: Friday, April 02, 2004 1:25 PM
> Subject: RE: [usb] How to send 0 packet using USB 2.0 Function Core
> > Set the TXZERO bit ( bit 5) of ep_stat register of
> corresponding endpoint.
> >
> > Rgds
> > Vivek
> > -----Original Message-----
> > From: usb-bounces@o...
> [mailto:usb-bounces@o...]On Behalf Of zhangchun
> > Sent: Friday, April 02, 2004 6:25 AM
> > To: Discussion list about free,open source USB IP core
> > Subject: [usb] How to send 0 packet using USB 2.0 Function
> Core
> >
> >
> > Hi, all,
> >
> > It seems that function controller must assign zero to
> Maxpayload of endpoint
> > register to send zero bytes packet. Is there any other method?
> >
> > regards,
> > chun
> >
> > _______________________________________________
> > http://www.opencores.org/mailman/listinfo/usb
> >
> > _______________________________________________
> > http://www.opencores.org/mailman/listinfo/usb
> >
>
>
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