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Failed Writing in Pendrive(USB 2.10) using LPC2468 sometimes

Hello to all,
I am using Kingston Pendrive(3.0), it is working on my code but some times it stuck in
Host_WDHWait() of Host_ProcessTD(EDBulkOut, TD_OUT, user_buffer, MS_BlkSize * num_blocks)
during data write process and this time current goes 100 to 150ma high(there is no current issue in my hardware beacause HardDisk is working well on my code and hardware).
While i am using Kingston Pendrive(2.0) it works well on my code. So what is the problem in my code, is it issue of code or hardware(Pendrive 3.0 --- get bDeviceClass-2.10 by HOST_GET_DESCRIPTOR in my code)?
Please Help me out...