From: Giulio Moro <g.moro@qmul.ac.uk>
To: "eladyaakovi@campus.technion.ac.il"
<eladyaakovi@campus.technion.ac.il>,
"xenomai@xenomai.org" <xenomai@xenomai.org>
Subject: Re: [Xenomai] Toggling GPIO RT Xenomai on Dragonboard 41c
Date: Thu, 22 Jun 2017 12:30:03 +0000 [thread overview]
Message-ID: <DB6PR0701MB2456F0240792DE24F631E5DFB5DB0@DB6PR0701MB2456.eurprd07.prod.outlook.com> (raw)
In-Reply-To: <VI1PR0101MB20008C1321074C271F56BBA2B8DB0@VI1PR0101MB2000.eurprd01.prod.exchangelabs.com>
> Can you explain please why this is not writing to a file:
Is this related to "Re: Toggling GPIO RT Xenomai on Dragonboard 41c" or should it go under a separate heading?
> (without the rt_task_sleep(1000) and the while it works fine).
Many things could be wrong with this.
If `time_to_run` is very small (or zero), then the condition is never met. On the other hand , I have no idea what time(NULL) does. Why don't you add a `printf()` inside the loop to see if it gets called once at least?
Also, I have no idea why you would try to write one byte to disk every 1 microsecond and how / whether your system would be capable of dealing with it.
Are you using some Xenomai wrappers or is `fprintf` actually calling the stdlib `fprintf` ? In the latter case, then I see this code as potentially hanging your system if it actually were to run and `time_to_run` is not small enough.
Just guessing, because we do not see a larger portion of your code.
next prev parent reply other threads:[~2017-06-22 12:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-21 8:10 [Xenomai] Toggling GPIO RT Xenomai on Dragonboard 41c eladyaakovi
2017-06-21 12:35 ` Giulio Moro
2017-06-22 11:45 ` eladyaakovi
2017-06-22 12:30 ` Giulio Moro [this message]
2017-06-22 15:05 ` eladyaakovi
2017-06-22 15:12 ` Giulio Moro
2017-06-22 15:21 ` eladyaakovi
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