tickSet/tickGet calls

[Tatiana V. Salikova]

Dear Madam/Sir,

Please, explain,

Does tickSet(ulong ticks) and ulong tickGet() calls sets/gets current
time in ticks sinse the start of CURRENT DAY or
since 00:00 Universal Coordinated Time, January 1, 1970 ???

Thank you.

Best Regards,
Tatiana

Budker Institute of Nuclear Physics
prospekt Lavrentev 11
630090, Novosibirsk, RUSSIA
fax +7 3832 342163
phone +7 3832 359977

[sta...@clark.net]

In article <7hp25s$5tqp$1...@sky.inp.nsk.su>,

Tatiana V. Salikova <sali...@inp.nsk.su> wrote:
>Dear Madam/Sir,
>
>Please, explain,
>
>Does tickSet(ulong ticks) and ulong tickGet() calls sets/gets current
>time in ticks sinse the start of CURRENT DAY or
>since 00:00 Universal Coordinated Time, January 1, 1970 ???
>
>

It returns the number of ticks that have elapsed since the system was booted.
I have never found any reason to set it to anything else. Try setting it
ticks since 1/1/70 and you'd overflow a 32-bit integer.

Dave

[Mike Anderson]

VxWorks Greetings!

>
> Please, explain,
>
> Does tickSet(ulong ticks) and ulong tickGet() calls sets/gets current
> time in ticks sinse the start of CURRENT DAY or
> since 00:00 Universal Coordinated Time, January 1, 1970 ???
>
>

Neither. The tick counter is reset to zero when the board is rebooted
unless your BSP has been modified to automatically hook into a
hardware real-time clock. I did a BSP that supported that once, but
I don't think that WRS ever made it a standard feature. Therefore,
the tick counter only represents the number of ticks since the board
was reset and nothing more.

However, SPARTA has a portion of their VxWorks Intermediate training
class that shows how to convert the tick counter into a rudimentary
wall clock time representation and supply that to things like dosFS
for date and time stamping.

HTH,

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[tim allen]

VxWorks

>Does tickSet(ulong ticks) and ulong tickGet() calls sets/gets current
>time in ticks sinse the start of CURRENT DAY or since 00:00 Universal
>Coordinated Time, January 1, 1970 ???

Neither.

The tick counter is set to zero at startup. It can be changed/reset with
tickSet(), without affecting relative timeouts or any other kernel timers.

Tim.
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[rwe...@landis-lund.co.uk]

Neither. The VxWorks call tickGet() returns the number of ticks since
the system was booted, unless a new value is forced using tickSet().

Richard Wenham
Cranfield Precision

> From: sali...@inp.nsk.su (Tatiana V. Salikova)
> Organization: BINP, Novosibirsk, Russia .
> Message-ID: <7hp25s$5tqp$1...@sky.inp.nsk.su>
> Dear Madam/Sir,
> Please, explain,
> Does tickSet(ulong ticks) and ulong tickGet() calls sets/gets current
> time in ticks sinse the start of CURRENT DAY or
> since 00:00 Universal Coordinated Time, January 1, 1970 ???