Lpc2000

Hi all,

I am designing an USB driver in lpc2148 board. i have a sample program for
HID driver. they are sending reports to the host. however, in the code, the
following part i did not understand.

I suppose, to wait for completion of transmission only the first while loop
will be sufficient. i am not getting why they are Getting endpoint status
and again they are checking transmit interrupt bit. if anyone has any
experience in this regard, please help me.


  // Wait to complete of transmition
  while ((ENDPINTS & (1<<EP_REP)) == 0)
  {
    // Get enmdpoint status
    if ((USB_Cmd(CMD_USB_SET_EP_STAT + EP_REP,0) & 1) == 0)
    {
      if((ENDPINTS & (1<<EP_REP)) == 0)
      {
        break;
      }
    }
  }
  USB_Cmd(CMD_USB_SEL_CLR_INT_EP + EP_REP,0);
  ENDPINTCLR = (1<<EP_REP);

Thanks for going through the problem.

Regards,
Manisha

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