#3456: Add support for CPU counter timestamps
-----------------------------+------------------------------
Reporter: Sebastian Huber | Owner: Sebastian Huber
Type: enhancement | Status: assigned
Priority: normal | Milestone: 5.1
Component: score | Version: 5
Severity: normal | Resolution:
Keywords: | Blocked By:
Blocking: |
-----------------------------+------------------------------
Comment (by Sebastian Huber <sebastian.huber@…>):
In [changeset:"0a1f5df98e52b028bf8b4de3bf63e39702fa5f34/rtems"
0a1f5df9/rtems]:
{{{
#!CommitTicketReference repository="rtems"
revision="0a1f5df98e52b028bf8b4de3bf63e39702fa5f34"
Simplify _CPU_Counter_difference()
In order to simplify the use of CPU counter values it is beneficial to
have monotonic increasing values within the range of the CPU counter
ticks data type, e.g. 32-bit unsigned integer. This eases the use of
CPU counter timestamps in external tools which do not know the details
of the CPU counter hardware. The CPU counter is the fastest way to get
a time on an RTEMS system.
Such a CPU counter may be also used as the timecounter. Use it on SPARC
for this purpose to simplify the clock drivers.
Update #3456.
}}}
--
Ticket URL: <http://devel.rtems.org/ticket/3456#comment:6>
RTEMS Project <http://www.rtems.org/>
RTEMS Project
_______________________________________________
bugs mailing list
[email protected]
http://lists.rtems.org/mailman/listinfo/bugs
