[RELEASE] Official XBMC boblight Addon
(2013-06-01, 22:02)blazo Wrote: This is beyond me.
Changed PSU, added capacitor (2 of them) and I still get flashes. Sad
The only remedy is speed=40 with rate=48000 or less.

I think it might have something to do with the timing, the WS2801 latches in the data when the clock pin has been low for more than 500 microseconds.
If there are lots of other threads on the raspberry pi that also want cpu, it's possible that the boblightd device thread gets preempted while it's in the middle of an spi write.

I've committed a patch which might help with this: http://code.google.com/p/boblight/source/detail?r=468
If you add the threadpriority setting to the device section in boblightd like this:
Code:
threadpriority 99
And then make sure that boblight has rights to enable SCHED_FIFO, check the threadpriority setting on how to accomplish this: http://code.google.com/p/boblight/wiki/b...onf#device

This way the scheduler makes sure that the boblightd device thread will immediately get cpu time when it wants, and it will continue to get cpu time until it is done processing.
Reply


Messages In This Thread
[No subject] - by Lunatixz - 2011-12-07, 08:22
[No subject] - by Memphiz - 2011-12-07, 09:15
[No subject] - by Memphiz - 2011-12-07, 10:01
[No subject] - by Lunatixz - 2011-12-07, 11:05
[No subject] - by snipah - 2011-12-07, 12:11
[No subject] - by Memphiz - 2011-12-07, 12:32
[No subject] - by Clumsy - 2011-12-07, 13:29
[No subject] - by snipah - 2011-12-07, 13:52
[No subject] - by Memphiz - 2011-12-07, 18:41
[No subject] - by Memphiz - 2011-12-07, 18:47
[No subject] - by snipah - 2011-12-07, 21:04
[No subject] - by Memphiz - 2011-12-07, 21:09
[No subject] - by Memphiz - 2011-12-07, 21:10
[No subject] - by snipah - 2011-12-07, 21:36
[No subject] - by Memphiz - 2011-12-07, 21:39
[No subject] - by Memphiz - 2011-12-07, 22:12
[No subject] - by snipah - 2011-12-07, 23:16
[No subject] - by Memphiz - 2011-12-08, 00:36
[No subject] - by snipah - 2011-12-08, 08:39
[No subject] - by Elbert - 2011-12-09, 17:11
[No subject] - by lordindy - 2011-12-09, 17:16
[No subject] - by Elbert - 2011-12-10, 14:21
[No subject] - by Memphiz - 2011-12-10, 15:09
[No subject] - by Elbert - 2011-12-10, 16:20
[No subject] - by Memphiz - 2011-12-10, 16:43
[No subject] - by Elbert - 2011-12-10, 17:16
[No subject] - by Memphiz - 2011-12-10, 17:46
[No subject] - by bobo1on1 - 2011-12-10, 18:14
[No subject] - by Elbert - 2011-12-10, 19:05
[No subject] - by Lunatixz - 2011-12-13, 05:45
[No subject] - by Memphiz - 2011-12-13, 10:01
[No subject] - by Lunatixz - 2011-12-13, 21:25
[No subject] - by Memphiz - 2011-12-14, 00:11
[No subject] - by Dannydeman - 2011-12-18, 23:42
[No subject] - by Memphiz - 2011-12-18, 23:54
[No subject] - by bleze - 2011-12-19, 00:01
[No subject] - by bleze - 2011-12-19, 00:23
[No subject] - by Memphiz - 2011-12-19, 10:56
[No subject] - by Kode - 2011-12-19, 13:49
[No subject] - by bleze - 2011-12-19, 22:04
[No subject] - by Memphiz - 2011-12-19, 22:17
[No subject] - by bleze - 2011-12-19, 22:31
[No subject] - by Memphiz - 2011-12-19, 23:37
[No subject] - by bleze - 2011-12-20, 19:15
[No subject] - by bleze - 2011-12-20, 21:18
[No subject] - by bobo1on1 - 2011-12-20, 23:41
[No subject] - by Memphiz - 2011-12-21, 14:07
[No subject] - by bleze - 2011-12-21, 18:01
[No subject] - by Memphiz - 2011-12-21, 19:58
[No subject] - by Wikking - 2011-12-22, 12:43
[No subject] - by Memphiz - 2011-12-22, 16:34
[No subject] - by Wikking - 2011-12-22, 17:28
[No subject] - by ECEC - 2011-12-22, 18:07
[No subject] - by bobo1on1 - 2011-12-22, 18:55
[No subject] - by ECEC - 2011-12-22, 20:44
[No subject] - by bobo1on1 - 2011-12-22, 21:20
[No subject] - by Eoghlear - 2011-12-23, 00:57
[No subject] - by bobo1on1 - 2011-12-23, 03:10
[No subject] - by metheos - 2011-12-24, 22:45
[No subject] - by bleze - 2011-12-27, 01:23
[No subject] - by Eoghlear - 2011-12-27, 18:03
[No subject] - by bobo1on1 - 2011-12-27, 18:58
[No subject] - by Adam B. - 2011-12-28, 16:55
[No subject] - by bobo1on1 - 2011-12-28, 17:18
[No subject] - by Adam B. - 2011-12-28, 17:31
[No subject] - by Memphiz - 2011-12-29, 01:28
[No subject] - by Adam B. - 2011-12-29, 03:59
[No subject] - by Wikking - 2011-12-29, 11:22
[No subject] - by Adam B. - 2011-12-29, 12:11
[No subject] - by Wikking - 2011-12-29, 14:19
[No subject] - by bobo1on1 - 2011-12-29, 17:47
[No subject] - by bleze - 2011-12-29, 18:18
[No subject] - by Adam B. - 2011-12-30, 04:14
[No subject] - by LastMile - 2011-12-30, 05:43
[No subject] - by Memphiz - 2011-12-30, 13:04
[No subject] - by Adam B. - 2011-12-30, 13:47
[No subject] - by sraue - 2011-12-30, 16:22
were to buy - by pang - 2012-01-01, 09:17
[No subject] - by Elbert - 2012-01-01, 12:38
[No subject] - by LastMile - 2012-01-01, 23:34
[No subject] - by pigr8 - 2012-01-05, 04:10
[No subject] - by xalaros - 2012-01-06, 12:24
[No subject] - by schumi2004 - 2012-01-06, 12:44
[No subject] - by Memphiz - 2012-01-06, 15:00
[No subject] - by Ghostface - 2012-01-09, 11:42
[No subject] - by Memphiz - 2012-01-09, 13:10
[No subject] - by trouty00 - 2012-01-09, 15:29
[No subject] - by trouty00 - 2012-01-09, 18:31
[No subject] - by Memphiz - 2012-01-09, 21:31
[No subject] - by trouty00 - 2012-01-09, 23:36
[No subject] - by bobo1on1 - 2012-01-10, 00:18
[No subject] - by trouty00 - 2012-01-10, 17:27
[No subject] - by bobo1on1 - 2012-01-10, 20:12
[No subject] - by regnets - 2012-01-10, 22:49
[No subject] - by kimp93 - 2012-01-11, 01:54
[No subject] - by Memphiz - 2012-01-11, 14:52
[No subject] - by bobo1on1 - 2012-01-11, 18:40
[No subject] - by kimp93 - 2012-01-11, 21:30
[No subject] - by regnets - 2012-01-12, 09:38
[No subject] - by Memphiz - 2012-01-12, 11:13
[No subject] - by regnets - 2012-01-12, 13:59
[No subject] - by regnets - 2012-01-15, 23:05
[No subject] - by m_K_o - 2012-01-21, 19:39
[No subject] - by Lunatixz - 2012-01-22, 07:17
[No subject] - by Memphiz - 2012-01-22, 12:49
[No subject] - by kimp93 - 2012-01-24, 17:51
[No subject] - by Memphiz - 2012-01-24, 20:33
[No subject] - by MrHenky - 2012-01-24, 21:08
[No subject] - by bobo1on1 - 2012-01-24, 21:14
[No subject] - by kimp93 - 2012-01-24, 21:29
[No subject] - by MrHenky - 2012-01-24, 22:32
[No subject] - by devnull - 2012-01-25, 22:01
Possible Feature Addition? - by DarioS - 2012-01-25, 22:29
[No subject] - by Memphiz - 2012-01-26, 00:11
[No subject] - by MrHenky - 2012-01-26, 15:17
[No subject] - by ski107 - 2012-01-28, 09:10
[No subject] - by ski107 - 2012-01-28, 09:13
[No subject] - by PolliSoft - 2012-01-28, 14:50
[No subject] - by MrHenky - 2012-01-28, 23:42
[No subject] - by PolliSoft - 2012-01-29, 00:23
[No subject] - by ski107 - 2012-01-29, 02:04
[No subject] - by MrHenky - 2012-01-29, 15:45
[No subject] - by silvine - 2012-01-29, 18:50
[No subject] - by ski107 - 2012-01-29, 18:52
[No subject] - by MrHenky - 2012-01-29, 19:19
[No subject] - by MrHenky - 2012-01-30, 00:41
[No subject] - by Memphiz - 2012-01-30, 12:55
[No subject] - by devnull - 2012-01-30, 13:05
[No subject] - by Scidd0w - 2012-01-30, 18:09
[No subject] - by Lunatixz - 2012-02-01, 01:21
[No subject] - by PolliSoft - 2012-02-02, 12:52
[No subject] - by MrHenky - 2012-02-03, 20:01
[No subject] - by Adam B. - 2012-02-03, 20:57
[No subject] - by PolliSoft - 2012-02-06, 00:20
[No subject] - by Memphiz - 2012-02-06, 00:26
[No subject] - by bobo1on1 - 2012-02-06, 00:39
[No subject] - by PolliSoft - 2012-02-06, 01:14
[No subject] - by bobo1on1 - 2012-02-06, 01:29
[No subject] - by PolliSoft - 2012-02-06, 08:41
[No subject] - by Lunatixz - 2012-02-07, 01:52
[No subject] - by Memphiz - 2012-02-07, 11:33
[No subject] - by PolliSoft - 2012-02-07, 11:57
[No subject] - by bobo1on1 - 2012-02-07, 16:37
[No subject] - by MrHenky - 2012-02-08, 11:47
[No subject] - by smajor - 2012-02-12, 15:50
[No subject] - by Memphiz - 2012-02-12, 23:26
[No subject] - by Lunatixz - 2012-02-13, 00:57
[No subject] - by smajor - 2012-02-13, 10:49
[No subject] - by smajor - 2012-02-13, 11:26
[No subject] - by Lunatixz - 2012-02-13, 19:22
[No subject] - by smajor - 2012-02-13, 19:33
[No subject] - by George - 2012-02-13, 20:06
[No subject] - by smajor - 2012-02-13, 20:58
SEDU-Box and Boblight - by XBMCManni - 2012-02-15, 16:55
hardware setup - by Monkeysweat - 2012-02-15, 20:31
[No subject] - by George - 2012-02-16, 11:22
[No subject] - by smajor - 2012-02-16, 12:32
[No subject] - by Memphiz - 2012-02-16, 12:43
[No subject] - by phil65 - 2012-02-16, 15:04
[No subject] - by draven187 - 2012-02-16, 17:09
[No subject] - by triberraar - 2012-02-18, 14:12
[No subject] - by Adam B. - 2012-02-18, 16:28
[No subject] - by triberraar - 2012-02-18, 18:22
[No subject] - by smajor - 2012-02-18, 20:24
[No subject] - by Memphiz - 2012-02-19, 02:19
[No subject] - by smajor - 2012-02-19, 11:10
[No subject] - by triberraar - 2012-02-19, 14:33
[No subject] - by schumi2004 - 2012-02-21, 13:38
[No subject] - by hotlobster - 2012-02-21, 14:44
[No subject] - by Memphiz - 2012-02-21, 16:54
[No subject] - by Memphiz - 2012-02-21, 16:55
[No subject] - by hotlobster - 2012-02-21, 18:28
[No subject] - by bobo1on1 - 2012-02-21, 18:41
[No subject] - by Memphiz - 2012-02-22, 10:51
[No subject] - by Memphiz - 2012-02-22, 10:53
[No subject] - by hotlobster - 2012-02-22, 11:06
[No subject] - by Memphiz - 2012-02-22, 17:00
[No subject] - by phil65 - 2012-02-27, 05:22
[No subject] - by Memphiz - 2012-02-27, 12:48
[No subject] - by schumi2004 - 2012-02-27, 15:28
[No subject] - by phil65 - 2012-02-27, 18:37
[No subject] - by schumi2004 - 2012-02-29, 23:30
[No subject] - by Memphiz - 2012-03-01, 11:02
[No subject] - by schumi2004 - 2012-03-01, 18:18
[No subject] - by Memphiz - 2012-03-01, 23:27
[No subject] - by schumi2004 - 2012-03-01, 23:53
[No subject] - by Memphiz - 2012-03-02, 10:32
[No subject] - by bobo1on1 - 2012-03-02, 17:03
[No subject] - by schumi2004 - 2012-03-02, 20:11
[No subject] - by phil65 - 2012-03-03, 04:56
[No subject] - by schumi2004 - 2012-03-03, 13:29
[No subject] - by bobo1on1 - 2012-03-03, 16:56
[No subject] - by phil65 - 2012-03-03, 18:27
[No subject] - by schumi2004 - 2012-03-03, 18:41
[No subject] - by beta-j - 2012-03-03, 23:57
[No subject] - by bobo1on1 - 2012-03-04, 00:49
[No subject] - by Memphiz - 2012-03-04, 03:11
[No subject] - by phil65 - 2012-03-04, 11:37
[No subject] - by beta-j - 2012-03-04, 13:58
RE: - by phil65 - 2012-03-12, 07:53
RE: - by beta-j - 2012-03-12, 10:56
RE: - by phil65 - 2012-03-13, 00:51
RE: - by beta-j - 2012-03-14, 13:14
[No subject] - by Memphiz - 2012-03-04, 14:50
[No subject] - by bobo1on1 - 2012-03-04, 17:31
[No subject] - by phil65 - 2012-03-04, 19:06
[No subject] - by Memphiz - 2012-03-05, 00:36
[No subject] - by beta-j - 2012-03-05, 11:13
[No subject] - by schumi2004 - 2012-03-05, 15:39
[No subject] - by bobo1on1 - 2012-03-05, 16:19
[No subject] - by beta-j - 2012-03-05, 16:21
[No subject] - by bobo1on1 - 2012-03-06, 04:16
[No subject] - by beta-j - 2012-03-06, 19:33
[No subject] - by bobo1on1 - 2012-03-06, 20:44
[No subject] - by Memphiz - 2012-03-07, 00:28
[No subject] - by beta-j - 2012-03-07, 21:28
[No subject] - by beta-j - 2012-03-07, 21:28
[No subject] - by bobo1on1 - 2012-03-07, 21:31
[No subject] - by beta-j - 2012-03-07, 21:36
[No subject] - by beta-j - 2012-03-09, 18:01
[No subject] - by smajor - 2012-03-09, 18:26
[No subject] - by bobo1on1 - 2012-03-09, 18:32
[No subject] - by regnets - 2012-03-09, 21:26
[No subject] - by beta-j - 2012-03-10, 12:08
RE: - by smajor - 2012-03-13, 11:27
RE: - by phil65 - 2012-03-13, 11:48
RE: - by George - 2012-03-13, 16:29
RE: - by phil65 - 2012-03-13, 16:54
RE: - by George - 2012-03-13, 19:47
Make/Install Errors - by BluechipJ - 2013-04-01, 02:29
RE: [RELEASE] Official XBMC boblight Addon - by bobo1on1 - 2013-06-07, 20:45
Boblight preset values - by miraclemaker - 2014-05-11, 13:32


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