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Bulk Transfer

suixingzhu
Associate II
Posted on July 25, 2007 at 06:13

Bulk Transfer

4 REPLIES 4
suixingzhu
Associate II
Posted on July 24, 2007 at 13:55

Hello,

I use ST Mass Storage demo(Simple Buffer) and DDK�DriverStudio to generate a host application ,but I find that when I want to read from

the ST board,it does not enter the CTR_LP()

How can I solve the problem?

anis2399
Associate II
Posted on July 24, 2007 at 14:25

Hi suixingzhu;

Are you sure that the endpoint is in VALID state? and not NAK...

Regards

The Lion heart

suixingzhu
Associate II
Posted on July 24, 2007 at 23:15

Thank you for you help

Do you mean that I must set In point in valid status before the host send a IN packet to str711 board? Should I set IN point in valid status in MASS_Reset()?

suixingzhu
Associate II
Posted on July 25, 2007 at 06:13

Hello

I modify the str711 Mass Storage demo,when I want to read from the USB device,the fisrt time it read 16 bytes what are not my want,then the sencond and third time ,it is right.

But when I power on again,it repeat what I say again

How can I modify it? :-[

a second question:

When the str711 board first receive a IN packet,which function the process enter?

[ This message was edited by: suixingzhu on 25-07-2007 10:04 ]

[ This message was edited by: suixingzhu on 25-07-2007 10:58 ]