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-@c
-@c  COPYRIGHT (c) 1988-1998.
-@c  On-Line Applications Research Corporation (OAR).
-@c  All rights reserved.
-@c
-@c  $Id$
-@c
-
-@chapter Timer Driver
-
-You can program the timer driver for your own needs, but here are two uses
-of it: 
-
-@section UART'S FIFO Full Mode
-
-The gen68340 BSP is an example of the use of the timer to support the UART
-input FIFO full mode (FIFO means First In First Out and roughly means
-buffer). This mode consists in the UART raising an interrupt when n
-characters have been received (n is the UA RT's FIFO length). It results
-in a lower interrupt processing time, but the problem is that a scanf
-primitive will block on a receipt of less than n characters. The solution
-is to set a timer that will check whether there are some characters
-waiting in th e UART's input FIFO. The delay time has to be set carefully
-otherwise high rates will be broken: 
-
-@itemize @bullet
-
-@item if no character was received last time the interrupt subroutine was
-entered, set a long delay,
-
-@item otherwise set the delay to the delay needed for n characters
-receipt. 
-
-@end itemize
-
-@section Measuring RTEMS Primitives Time
-
-RTEMS Timing Test Suite needs a timer support. You have to provide two
-primitives: 
-
-
-
-Function
-
-Description
-
-@example
-void Timer_initialize (void)
-@end example
-
-Initialize the timer to be a counter to the microsecond.
-
-@example
-int Read_timer (void)
-@end example
-
-Returns the number of microseconds elapsed since the last call to
-Timer_initialize. 
-
-@example
-rtems_status_code Empty_function (void)
-
-return RTEMS_SUCCESSFUL;
-@end example
-
-@example
-void Set_find_average_overhead (rtems_boolean find_flag)
-@end example
-
-DOES NOTHING ??????????
-
-		
-
-