[RTEMS Project] #4746: Armv7-M SysTick clock driver uses off by one reload value

[RTEMS trac]

#4746: Armv7-M SysTick clock driver uses off by one reload value
-----------------------------+------------------------------
 Reporter:  Sebastian Huber  |       Owner:  Sebastian Huber
     Type:  defect           |      Status:  closed
 Priority:  normal           |   Milestone:  6.1
Component:  arch/arm         |     Version:  4.11
 Severity:  normal           |  Resolution:  fixed
 Keywords:                   |  Blocked By:
 Blocking:                   |
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Changes (by Dariusz Sabala <dariusz.sabala@…>):

 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 In [changeset:"1eae6f24fec6c3ab00d8f5d0152d2a5b57ea4589/rtems"
 1eae6f2/rtems]:
 {{{
 #!CommitTicketReference repository="rtems"
 revision="1eae6f24fec6c3ab00d8f5d0152d2a5b57ea4589"
 bsps/arm: fix Cortex-M7 systick reload value

 - see ARM DUI 0646C Arm Cortex-M7 Devices Generic User Guide
   "The RELOAD value is calculated according to its use.
   For example, to generate a multi-shot timer with a period
   of N processor clock cycles, use a RELOAD value of N-1.
   If the SysTick interrupt is required every 100 clock pulses,
   set RELOAD to 99."
 - see routines used in CMSIS project for reference

 Close #4746.
 }}}

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Ticket URL: <http://devel.rtems.org/ticket/4746#comment:1>
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