title: arm7 usb programming
body: <p>we are developing a sendor device, with a arm7(current: LPC2368) .</p>
  
  <p>this device samples a mv signal,A/D, and need to send this signal data to the PC.(continusly)</p>
  
  <p>at the same time, PC need send command to arm7 (like get temperature, control status, etc..)</p>
  
  <p>rs232 is too slow, so we choose USB.(20K/s - 200K/s)</p>
  
  <p>but the question is, we donnot known how to do usb programming(both pc and arm..)</p>
  
  <p>any direction? any portal? any tutorial?</p>
  
  <p>currently we only sim the device as a HID....</p>