Changes between Version 1 and Version 2 of xcu_driver

Timestamp:

Oct 8, 2014, 7:29:14 PM (10 years ago)

Author:

alain

Comment:

--

xcu_driver

@@ -50 +50 @@
 
  === unsigned int '''_xcu_timer_reset_irq'''( unsigned int cluster_xy,   unsigned int pti_index ) ===
-//////////////////////////////////////////////////////////////////////////////
-// This function acknowlegge a timer interrupt in XCU 
-// component by reading in the proper XCU register.
-// It can be used by both the isr_switch() for a "system" timer, 
-// or by the _isr_timer() for an "user" timer.
-//////////////////////////////////////////////////////////////////////////////
+This function acknowlegge a timer interrupt in XCU component by reading in the proper XCU register.
+It is used by both the isr_switch() for a system timer,  or by the _isr_timer() for an user timer.
 
-extern void _xcu_timer_reset_cpt( unsigned int cluster_xy, 
-                                  unsigned int pti_index ); 
-//////////////////////////////////////////////////////////////////////////////
-// This function resets a timer counter. To do so, we re-write the period
-// in the proper register, what causes the count to restart.
-// The period value is read from the same (TIMER_PERIOD) register,
-// this is why in appearance we do nothing useful (read a value
-// from a register and write this value in the same register).
-// This function is called during a context switch (user or preemptive)
-/////////////////////////////////////////////////////////////////////////////
+ === void '''_xcu_timer_reset_cpt'''( unsigned int cluster_xy,  unsigned int pti_index ) ===
+This function resets a timer counter. To do so, it read in the TIMER_PERIOD register, and rewrite the same value in the same register,
+what causes the count to restart. This function is called during a context switch (user or preemptive).