Lpc2000

--- In lpc2000@yahoogroups.com, Manisha Kalita <manisha@...> wrote:
>
> ya its lpc 2148 board
> ARM7 running at 60MHz, flash of 512 KB, RAM with 32 KB + 8 KB 
Shared with
> USB DMA & USB 2.0 Device controller (Full Speed)DMA supported. 
using gcc. &
> yes some help from sample code, i dont remeber the source.
> 
> Regards,
> Manisha
> 
> -----Original Message-----
> From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com]On 
Behalf
> Of ian.scanlon
> Sent: Friday, April 07, 2006 6:36 PM
> To: lpc2000@yahoogroups.com
> Subject: [lpc2000] Re: Please help:: checking for data receive in 
USB
> Endpoint
> 
> 
> --- In lpc2000@yahoogroups.com, Manisha Kalita <manisha@> wrote:
> >
> > Hi all,
> >
> > i am designing an USB driver in lpc2000 board.
> 
> lpc2000 board?? what hardware? compiler? using example code from
> ____? PC test application?
> 
> 
> 
> it is sending the data
> > properly. however, during reception, i am checking if any data is
> there in
> > the deveice register RXPLENGTH. if there is any peacket, PKT-RDY
> bit of this
> > register is set. but, in my case, even though no data is sent from
> the host,
> > PKT_RDY bit is always set. i am using interrupt transfer and so
> using
> > logical endpoint as 1.
> >

Can't really say why your code doesn't work, but the example code 
from Keil and IAR works well (mostly).

Take a look at the IAR USB sample code. LPC_USB.c -> USB_EpRead(...  
It is copyrighted so I won't post it here.  Did you write the Read 
enable bit?