Hi Sven, > Am 12.04.2018 um 17:55 schrieb Sven Dyroff <s.dyr...@phytec.de>: > > Hello Nikolaus, > > have you tried if GTA04A5 now moves the ball in QtMaze as smooth, fast and > natural and without stuttering as the GTA04A4?
Well, I don't know what you expect for "smooth, fast and natura"l, I just found that they move almost the same now between both devices - and qtmoko2. I don't have time to make a 2nd SD cards to boot two devices and compare them in parallel... So answering this question seems to be in better hands if you do it. BR, Nikolaus > > Best regards > Sven > > > > > > Von: "H. Nikolaus Schaller" <h...@goldelico.com> > An: List for communicating with real GTA04 owners > <gta04-owner@goldelico.com> > Datum: 12.04.2018 14:52 > Betreff: Re: [Gta04-owner] Second trial with QtMoko2 > Gesendet von: "Gta04-owner" <gta04-owner-boun...@goldelico.com> > > > > Am 12.04.2018 um 14:32 schrieb Sven Dyroff <s.dyr...@phytec.de > <mailto:s.dyr...@phytec.de>>: > > Hello Nikolaus, > > it would astonish me if you're right, but of course I'll then test it again > in order to give you a chance to astonish me... :-)) > > I have done this test for you: > > GTA04A4 and GTA04A5 with display upside on the table with the same µSD card > (i.e. boot A5 first, then swap card and boot A4). > Run evtest /dev/input/accel | head -20 and write down highest X/Y/Z values. > > On a GTA04A5: > > root@letux:~# evtest /dev/input/accel | head -20 > Input driver version is 1.0.1 > Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0 > Input device name: "accelerometer-iio-input-bridge" > Supported events: > Event type 0 (EV_SYN) > Event type 3 (EV_ABS) > Event code 0 (ABS_X) > Value 14 > Min -511 > Max 511 > Event code 1 (ABS_Y) > Value -32 > Min -511 > Max 511 > Event code 2 (ABS_Z) > Value -253 > Min -511 > Max 511 > Properties: > Testing ... (interrupt to exit) > root@letux:~# > > This means: X=14/256 = +5%, Y=--32/256 = -12%, Z=-253/256 = -99% > > On a GTA04A4: > > root@letux:~# evtest /dev/input/accel | head -20 > Input driver version is 1.0.1 > Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0 > Input device name: "accelerometer-iio-input-bridge" > Supported events: > Event type 0 (EV_SYN) > Event type 3 (EV_ABS) > Event code 0 (ABS_X) > Value -15 > Min -511 > Max 511 > Event code 1 (ABS_Y) > Value -5 > Min -511 > Max 511 > Event code 2 (ABS_Z) > Value 274 > Min -511 > Max 511 > Properties: > Testing ... (interrupt to exit) > root@letux:~# > > This means: X=-15/256 = +6%, Y=--5/256 = -2%, Z=274/256 = +107% > > Comparing A4 and A5: they basically behave *the same* regarding the range > and report both +/-256 for 1g. They just differ in the orientation of the > sensor. > > I.e. the Z axis also has a sign error. This is still missing in my correction > patch. > To make it really precise I should rotate both devices by 90° and write down > all > values... > > What I don't know and can't compare is if they behave like a GTA02... And > if a total value of ~1g is what QtMaze expects. And if the QtMaze makes use > of the Z-axis at all (doesn't look as if it does). > > BR, > Nikolaus > > > > Best regards > Sven > > > > > > Von: "H. Nikolaus Schaller" <h...@goldelico.com > <mailto:h...@goldelico.com>> > An: List for communicating with real GTA04 owners > <gta04-owner@goldelico.com <mailto:gta04-owner@goldelico.com>> > Datum: 12.04.2018 14:25 > Betreff: Re: [Gta04-owner] Second trial with QtMoko2 > Gesendet von: "Gta04-owner" <gta04-owner-boun...@goldelico.com > <mailto:gta04-owner-boun...@goldelico.com>> > > > > > Hi Sven, > > Am 12.04.2018 um 14:19 schrieb Sven Dyroff <s.dyr...@phytec.de > <mailto:s.dyr...@phytec.de>>: > > Hello Nikolaus, > > fine, but this will "only" correct the swapping. It will still not correct > the calibration. > > Whereat the comments of the affected source give a nice hint: "On my GTA04, > sitting flat on the table, the raw Z acceleration value is about 256, so we > divide by 256 here." > > So I suggest to add a further printf of the value of "accel -> z", in order > that your code will provide you the needed calibration data that you can then > use for "accel -> [xyz]scale" in case of having detected a GTA04A5. > > It is easier than a printf: evtest /dev/input/accel reports the range > [0..512] and the current values. > > I have checked that and the GTA04A5 also reports roughly 256. > > So I think you should test (after I have uploaded it to the server) if it is > now ok for you. > > BR, > Nikolaus > > > Best regards > Sven > > > > > > Von: "H. Nikolaus Schaller" <h...@goldelico.com > <mailto:h...@goldelico.com>> > An: Sven Dyroff <s.dyr...@phytec.de <mailto:s.dyr...@phytec.de>> > Kopie: List for communicating with real GTA04 owners > <gta04-owner@goldelico.com <mailto:gta04-owner@goldelico.com>> > Datum: 11.04.2018 19:21 > Betreff: Re: [Gta04-owner] Second trial with QtMoko2 > > > > > Hi Sven, > > Am 05.04.2018 um 18:05 schrieb Sven Dyroff <s.dyr...@phytec.de > <mailto:s.dyr...@phytec.de>>: > > Hello Nikolaus, > > > I have now booted my GTA04A4 and the orientation is completely correct. > > Hm. Maybe a subtle difference between GTA04A4 and A5? They use different > > accelerometer chips. > > something like that is what I already assumed. Would have wondered me if some > scaling factors would have gone lost by just rebuilding QtMoko... > > I have now added a device version detection to swap the horizontal axis if we > run on a GTA04A5: > > http://git.goldelico.com/?p=gta04-qtmoko.git;a=commit;h=04c30a3b18be8b55148427d6c63423837f6a77cc > > <http://git.goldelico.com/?p=gta04-qtmoko.git;a=commit;h=04c30a3b18be8b55148427d6c63423837f6a77cc> > > > I have not yet published the new debian packages, but will do soon. So > apt-get update will not > yet find anything new. > > BR, > Nikolaus > _______________________________________________ > Gta04-owner mailing list > Gta04-owner@goldelico.com <mailto:Gta04-owner@goldelico.com> > http://lists.goldelico.com/mailman/listinfo.cgi/gta04-owner > <http://lists.goldelico.com/mailman/listinfo.cgi/gta04-owner> > _______________________________________________ > Gta04-owner mailing list > Gta04-owner@goldelico.com <mailto:Gta04-owner@goldelico.com> > http://lists.goldelico.com/mailman/listinfo.cgi/gta04-owner > <http://lists.goldelico.com/mailman/listinfo.cgi/gta04-owner> > > _______________________________________________ > Gta04-owner mailing list > Gta04-owner@goldelico.com <mailto:Gta04-owner@goldelico.com> > http://lists.goldelico.com/mailman/listinfo.cgi/gta04-owner > <http://lists.goldelico.com/mailman/listinfo.cgi/gta04-owner> > > > _______________________________________________ > Gta04-owner mailing list > Gta04-owner@goldelico.com > http://lists.goldelico.com/mailman/listinfo.cgi/gta04-owner > <http://lists.goldelico.com/mailman/listinfo.cgi/gta04-owner> > > _______________________________________________ > Gta04-owner mailing list > Gta04-owner@goldelico.com > http://lists.goldelico.com/mailman/listinfo.cgi/gta04-owner
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