<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi,<div class=""><br class=""><div><blockquote type="cite" class=""><div class="">Am 13.04.2018 um 22:42 schrieb H. Nikolaus Schaller <<a href="mailto:hns@goldelico.com" class="">hns@goldelico.com</a>>:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi,<div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">Am 13.04.2018 um 20:06 schrieb H. Nikolaus Schaller <<a href="mailto:hns@goldelico.com" class="">hns@goldelico.com</a>>:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Sven,<div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">Am 13.04.2018 um 19:29 schrieb Sven Dyroff <<a href="mailto:S.Dyroff@phytec.de" class="">S.Dyroff@phytec.de</a>>:</div><br class="Apple-interchange-newline"><div class=""><font size="2" face="sans-serif" class="">Hello Nikolaus,</font>
<br class="">
<br class=""><font size="2" face="sans-serif" class="">on my GTA04A5 it behaves exactly as
expected: The ball now moves to the correct directions, </font></div></blockquote><div class=""><br class=""></div>Fine! One problem solved.</div><div class=""><br class=""><blockquote type="cite" class=""><div class=""><font size="2" face="sans-serif" class="">but slowly and
stuttering.</font></div></blockquote><div class=""><br class=""></div><div class="">Bugs are like onions or matryoshka dolls :)</div><div class=""><br class=""></div>Isn't that what one would expect? It starts slowly and becomes faster and faster, i.e. accelerates over time.</div><div class=""><br class=""><blockquote type="cite" class=""><div class=""><font size="2" face="sans-serif" class=""> Like if you view a film with not enough pictures per second.</font>
<br class=""></div></blockquote><div class=""><br class=""></div>Or do you mean that the ball is jumping by single pixels if you tilt the device just a little?</div><div class="">I have made a short video how it looks on my GTA04:</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span><a href="http://download.goldelico.com/qtmoko2/files/MAH00877.m4v" class="">http://download.goldelico.com/qtmoko2/files/MAH00877.m4v</a></div></div></div></div></blockquote><br class=""></div><div class="">I have uploaded it to YouTube:</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span><a href="https://www.youtube.com/watch?v=cHk8AtigL4k" class="">https://www.youtube.com/watch?v=cHk8AtigL4k</a></div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><div class=""><br class=""></div><div class="">Does it look the same for you?</div></div></div></div></blockquote><div class=""><br class=""></div><div class="">Ok, here is an old Freerunner video for comparison (thanks to Raanan Elefant):</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span><a href="https://www.youtube.com/results?search_query=jaRtQOPMBO4" class="">https://www.youtube.com/results?search_query=jaRtQOPMBO4</a></div><div class=""><br class=""></div><div class="">I think we either have lower accelerometer sensitivity or the frame-rate is lower.</div><div class=""><br class=""></div><div class="">For the latter we need some expert who knows how Qt really works and</div><div class="">controls the frame rate...</div></div></div></div></div></blockquote><div><br class=""></div>Here is another video. Where QtMoko2 has been rougly hacked [1] to boot and run on a Pyra:</div><div><br class=""></div><div><span class="Apple-tab-span" style="white-space:pre"> </span><a href="https://youtu.be/Wx6Anhspa7I" class="">https://youtu.be/Wx6Anhspa7I</a></div><div><br class=""></div><div>As you can see, the graphics of QtMaze doesn't differ from the GTA04. So this is</div><div>not a matter of "horsepower" of the hardware (OMAP3 vs. OMAP5).</div><div><br class=""></div><div>BR,</div><div>Nikolaus</div><div><br class=""></div><div>[1]: <a href="http://git.goldelico.com/?p=gta04-qtmoko.git;a=shortlog;h=refs/heads/wheezy" class="">http://git.goldelico.com/?p=gta04-qtmoko.git;a=shortlog;h=refs/heads/wheezy</a></div><div><br class=""></div><div><blockquote type="cite" class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><div class=""><div class=""><br class=""></div><div class="">BR,</div><div class="">Nikolaus</div><div class=""><br class=""></div><blockquote type="cite" class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><div class=""><br class=""></div><div class="">BR,</div><div class="">Nikolaus</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><div class="">
<br class=""><font size="2" face="sans-serif" class="">Best regards</font>
<br class=""><font size="2" face="sans-serif" class=""> Sven</font>
<br class=""><font size="2" face="sans-serif" class=""> </font>
<br class="">
<br class="">
<br class="">
<br class="">
<br class=""><font size="1" color="#5f5f5f" face="sans-serif" class="">Von:
</font><font size="1" face="sans-serif" class="">"H. Nikolaus Schaller"
<<a href="mailto:hns@goldelico.com" class="">hns@goldelico.com</a>></font>
<br class=""><font size="1" color="#5f5f5f" face="sans-serif" class="">An:
</font><font size="1" face="sans-serif" class="">List for communicating
with real GTA04 owners <<a href="mailto:gta04-owner@goldelico.com" class="">gta04-owner@goldelico.com</a>></font>
<br class=""><font size="1" color="#5f5f5f" face="sans-serif" class="">Datum:
</font><font size="1" face="sans-serif" class="">13.04.2018 17:48</font>
<br class=""><font size="1" color="#5f5f5f" face="sans-serif" class="">Betreff:
</font><font size="1" face="sans-serif" class="">Re: [Gta04-owner]
Second trial with QtMoko2</font>
<br class=""><font size="1" color="#5f5f5f" face="sans-serif" class="">Gesendet von:
</font><font size="1" face="sans-serif" class="">"Gta04-owner"
<<a href="mailto:gta04-owner-bounces@goldelico.com" class="">gta04-owner-bounces@goldelico.com</a>></font>
<br class="">
<hr noshade="" class="">
<br class="">
<br class="">
<br class=""><font size="3" class="">Hi Sven,</font>
<br class="">
<br class=""><font size="3" class="">Am 12.04.2018 um 19:35 schrieb H. Nikolaus Schaller <</font><a href="mailto:hns@goldelico.com" class=""><font size="3" color="blue" class=""><u class="">hns@goldelico.com</u></font></a><font size="3" class="">>:</font>
<br class="">
<br class=""><font size="3" class="">Hi Sven,</font>
<br class="">
<br class=""><font size="3" class="">Am 12.04.2018 um 17:55 schrieb Sven Dyroff <</font><a href="mailto:S.Dyroff@phytec.de" class=""><font size="3" color="blue" class=""><u class="">S.Dyroff@phytec.de</u></font></a><font size="3" class="">>:</font>
<br class="">
<br class=""><font size="2" face="sans-serif" class="">Hello Nikolaus,</font><font size="3" class="">
<br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
have you tried if GTA04A5 now moves the ball in QtMaze as smooth, fast
and natural and without stuttering as the GTA04A4?</font><font size="3" class="">
</font>
<br class="">
<br class=""><font size="3" class="">Well, I don't know what you expect for "smooth, fast
and natura"l, I just found that they move almost the same now</font>
<br class=""><font size="3" class="">between both devices - and qtmoko2.</font>
<br class="">
<br class=""><font size="3" class="">So, finally, I have checked (and additionally fixed the
z axis inversion for GTA04A5) and the files are now on the server:</font>
<br class="">
<br class=""><font size="3" class="">root@letux:~# apt-get upgrade</font>
<br class=""><font size="3" class="">Reading package lists... Done</font>
<br class=""><font size="3" class="">Building dependency tree </font>
<br class=""><font size="3" class="">Reading state information... Done</font>
<br class=""><font size="3" class="">The following packages will be upgraded:</font>
<br class=""><font size="3" class=""> qtmoko-gta04</font>
<br class=""><font size="3" class="">1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.</font>
<br class=""><font size="3" class="">Need to get 24.2 MB of archives.</font>
<br class=""><font size="3" class="">After this operation, 0 B of additional disk space will
be used.</font>
<br class=""><font size="3" class="">Do you want to continue [Y/n]? y</font>
<br class=""><font size="3" class="">WARNING: The following packages cannot be authenticated!</font>
<br class=""><font size="3" class=""> qtmoko-gta04</font>
<br class=""><font size="3" class="">Install these packages without verification [y/N]? y</font>
<br class=""><font size="3" class="">Get:1 </font><a href="http://download.goldelico.com/letux-debian-rootfs/debian/" class=""><font size="3" color="blue" class=""><u class="">http://download.goldelico.com/letux-debian-rootfs/debian/</u></font></a><font size="3" class="">
wheezy/main qtmoko-gta04 armhf 60.20180413-1 [24.2 MB]</font>
<br class=""><font size="3" class="">Fetched 24.2 MB in 32s (737 kB/s)
</font>
<br class=""><font size="3" class="">(Reading database ... 21235 files and directories currently
installed.)</font>
<br class=""><font size="3" class="">Preparing to replace qtmoko-gta04 60.20180411-1 (using
.../qtmoko-gta04_60.20180413-1_armhf.deb) ...</font>
<br class=""><font size="3" class="">Unpacking replacement qtmoko-gta04 ...</font>
<br class=""><font size="3" class="">Setting up qtmoko-gta04 (60.20180413-1) ...</font>
<br class=""><font size="3" class="">localepurge: Disk space freed in /usr/share/locale: 0
KiB</font>
<br class=""><font size="3" class="">localepurge: Disk space freed in /usr/share/man: 0 KiB</font>
<br class="">
<br class=""><font size="3" class="">Total disk space freed by localepurge: 0 KiB</font>
<br class="">
<br class=""><font size="3" class="">root@letux:~#</font>
<br class="">
<br class=""><font size="3" class="">BR,</font>
<br class=""><font size="3" class="">Nikolaus</font>
<br class="">
<br class="">
<br class=""><font size="3" class="">I don't have time to make a 2nd SD cards to boot two devices
and compare them in parallel...</font>
<br class="">
<br class=""><font size="3" class="">So answering this question seems to be in better hands
if you do it.</font>
<br class="">
<br class=""><font size="3" class="">BR,</font>
<br class=""><font size="3" class="">Nikolaus</font>
<br class="">
<br class="">
<br class=""><font size="2" face="sans-serif" class=""><br class="">
Best regards</font><font size="3" class=""> </font><font size="2" face="sans-serif" class=""><br class="">
Sven</font><font size="3" class=""> </font><font size="2" face="sans-serif" class=""><br class="">
</font><font size="3" class=""><br class="">
<br class="">
<br class="">
<br class="">
</font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Von: </font><font size="1" face="sans-serif" class="">"H.
Nikolaus Schaller" <</font><a href="mailto:hns@goldelico.com" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">hns@goldelico.com</u></font></a><font size="1" face="sans-serif" class="">></font><font size="3" class="">
</font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
An: </font><font size="1" face="sans-serif" class="">List
for communicating with real GTA04 owners <</font><a href="mailto:gta04-owner@goldelico.com" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">gta04-owner@goldelico.com</u></font></a><font size="1" face="sans-serif" class="">></font><font size="3" class="">
</font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Datum: </font><font size="1" face="sans-serif" class="">12.04.2018
14:52</font><font size="3" class=""> </font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Betreff: </font><font size="1" face="sans-serif" class="">Re:
[Gta04-owner] Second trial with QtMoko2</font><font size="3" class=""> </font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Gesendet von: </font><font size="1" face="sans-serif" class="">"Gta04-owner"
<</font><a href="mailto:gta04-owner-bounces@goldelico.com" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">gta04-owner-bounces@goldelico.com</u></font></a><font size="1" face="sans-serif" class="">></font><font size="3" class="">
<br class="">
</font>
<hr noshade="" class=""><font size="3" class=""><br class="">
<br class="">
</font><tt class=""><font size="3" class=""><br class="">
Am 12.04.2018 um 14:32 schrieb Sven Dyroff <</font></tt><a href="mailto:S.Dyroff@phytec.de" class=""><tt class=""><font size="3" color="blue" class=""><u class="">S.Dyroff@phytec.de</u></font></tt></a><tt class=""><font size="3" class="">>:</font></tt><font size="3" class="">
<br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
Hello Nikolaus,</font><tt class=""><font size="3" class=""> </font></tt><font size="3" class=""><br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
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... :-))</font><tt class=""><font size="3" class="">
</font></tt><font size="3" class=""><br class="">
</font><tt class=""><font size="3" class=""><br class="">
I have done this test for you:</font></tt><font size="3" class=""> <br class="">
</font><tt class=""><font size="3" class=""><br class="">
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).</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Run evtest /dev/input/accel | head -20 and write down highest X/Y/Z values.</font></tt><font size="3" class="">
<br class="">
</font><tt class=""><font size="3" class=""><br class="">
On a GTA04A5:</font></tt><font size="3" class=""> <br class="">
</font><tt class=""><font size="3" class=""><br class="">
root@letux:~# evtest /dev/input/accel | head -20</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Input driver version is 1.0.1</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Input device name: "accelerometer-iio-input-bridge"</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Supported events:</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Event type 0 (EV_SYN)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Event type 3 (EV_ABS)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Event code 0 (ABS_X)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Value 14</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Min -511</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Max 511</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Event code 1 (ABS_Y)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Value -32</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Min -511</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Max 511</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Event code 2 (ABS_Z)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Value -253</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Min -511</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Max 511</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Properties:</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Testing ... (interrupt to exit)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
root@letux:~# </font></tt><font size="3" class=""> <br class="">
</font><tt class=""><font size="3" class=""><br class="">
This means: X=14/256 = +5%, Y=--32/256 = -12%, Z=-253/256 = -99%</font></tt><font size="3" class="">
<br class="">
</font><tt class=""><font size="3" class=""><br class="">
On a GTA04A4:</font></tt><font size="3" class=""> <br class="">
</font><tt class=""><font size="3" class=""><br class="">
root@letux:~# evtest /dev/input/accel | head -20</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Input driver version is 1.0.1</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Input device name: "accelerometer-iio-input-bridge"</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Supported events:</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Event type 0 (EV_SYN)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Event type 3 (EV_ABS)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Event code 0 (ABS_X)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Value -15</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Min -511</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Max 511</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Event code 1 (ABS_Y)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Value -5</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Min -511</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Max 511</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Event code 2 (ABS_Z)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Value 274</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Min -511</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Max 511</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
Properties:</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Testing ... (interrupt to exit)</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
root@letux:~# </font></tt><font size="3" class=""> <br class="">
</font><tt class=""><font size="3" class=""><br class="">
This means: X=-15/256 = +6%, Y=--5/256 = -2%, Z=274/256 = +107%</font></tt><font size="3" class="">
<br class="">
</font><tt class=""><font size="3" class=""><br class="">
Comparing A4 and A5: they basically behave *the same* regarding the range</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
and report both +/-256 for 1g. They just differ in the orientation of the
sensor.</font></tt><font size="3" class=""> <br class="">
</font><tt class=""><font size="3" class=""><br class="">
I.e. the Z axis also has a sign error. This is still missing in my correction
patch.</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
To make it really precise I should rotate both devices by 90° and write
down all</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
values...</font></tt><font size="3" class=""> <br class="">
</font><tt class=""><font size="3" class=""><br class="">
What I don't know and can't compare is if they behave like a GTA02... And</font></tt><font size="3" class="">
</font><tt class=""><font size="3" class=""><br class="">
if a total value of ~1g is what QtMaze expects. And if the QtMaze makes
use</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
of the Z-axis at all (doesn't look as if it does).</font></tt><font size="3" class="">
<br class="">
</font><tt class=""><font size="3" class=""><br class="">
BR,</font></tt><font size="3" class=""> </font><tt class=""><font size="3" class=""><br class="">
Nikolaus</font></tt><font size="3" class=""> <br class="">
<br class="">
<br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
Best regards</font><font size="3" class=""> </font><font size="2" face="sans-serif" class=""><br class="">
Sven</font><tt class=""><font size="3" class=""> </font></tt><font size="2" face="sans-serif" class=""><br class="">
</font><tt class=""><font size="3" class=""> </font></tt><font size="3" class=""> <br class="">
<br class="">
<br class="">
<br class="">
</font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Von: </font><font size="1" face="sans-serif" class="">"H.
Nikolaus Schaller" <</font><a href="mailto:hns@goldelico.com" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">hns@goldelico.com</u></font></a><font size="1" face="sans-serif" class="">></font><tt class=""><font size="3" class="">
</font></tt><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
An: </font><font size="1" face="sans-serif" class="">List
for communicating with real GTA04 owners <</font><a href="mailto:gta04-owner@goldelico.com" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">gta04-owner@goldelico.com</u></font></a><font size="1" face="sans-serif" class="">></font><tt class=""><font size="3" class="">
</font></tt><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Datum: </font><font size="1" face="sans-serif" class="">12.04.2018
14:25</font><tt class=""><font size="3" class=""> </font></tt><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Betreff: </font><font size="1" face="sans-serif" class="">Re:
[Gta04-owner] Second trial with QtMoko2</font><tt class=""><font size="3" class=""> </font></tt><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Gesendet von: </font><font size="1" face="sans-serif" class="">"Gta04-owner"
<</font><a href="mailto:gta04-owner-bounces@goldelico.com" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">gta04-owner-bounces@goldelico.com</u></font></a><font size="1" face="sans-serif" class="">></font><tt class=""><font size="3" class="">
</font></tt><font size="3" class=""><br class="">
</font>
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</font><tt class=""><font size="3" class=""><br class="">
Hi Sven, </font></tt><font size="3" class=""><br class="">
</font><tt class=""><font size="3" class=""><br class="">
Am 12.04.2018 um 14:19 schrieb Sven Dyroff <</font></tt><a href="mailto:S.Dyroff@phytec.de" class=""><tt class=""><font size="3" color="blue" class=""><u class="">S.Dyroff@phytec.de</u></font></tt></a><tt class=""><font size="3" class="">>:
</font></tt><font size="3" class=""><br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
Hello Nikolaus,</font><tt class=""><font size="3" class=""> </font></tt><font size="3" class=""><br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
fine, but this will "only" correct the swapping. It will still
not correct the calibration.</font><tt class=""><font size="3" class=""> </font></tt><font size="3" class=""><br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
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."</font><tt class=""><font size="3" class=""> </font></tt><font size="3" class=""><br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
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.</font><tt class=""><font size="3" class=""> </font></tt><font size="3" class="">
<br class="">
</font><tt class=""><font size="3" class=""><br class="">
It is easier than a printf: evtest /dev/input/accel reports the range [0..512]
and the current values. </font></tt><font size="3" class=""><br class="">
</font><tt class=""><font size="3" class=""><br class="">
I have checked that and the GTA04A5 also reports roughly 256. </font></tt><font size="3" class=""><br class="">
</font><tt class=""><font size="3" class=""><br class="">
So I think you should test (after I have uploaded it to the server) if
it is now ok for you. </font></tt><font size="3" class=""><br class="">
</font><tt class=""><font size="3" class=""><br class="">
BR, <br class="">
Nikolaus </font></tt><font size="3" class=""><br class="">
<br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
Best regards</font><tt class=""><font size="3" class=""> </font></tt><font size="2" face="sans-serif" class=""><br class="">
Sven</font><tt class=""><font size="3" class=""> </font></tt><font size="2" face="sans-serif" class=""><br class="">
</font><font size="3" class=""> <br class="">
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</font><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Von: </font><font size="1" face="sans-serif" class="">"H.
Nikolaus Schaller" <</font><a href="mailto:hns@goldelico.com" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">hns@goldelico.com</u></font></a><font size="1" face="sans-serif" class="">></font><tt class=""><font size="3" class="">
</font></tt><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
An: </font><font size="1" face="sans-serif" class="">Sven
Dyroff <</font><a href="mailto:S.Dyroff@phytec.de" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">S.Dyroff@phytec.de</u></font></a><font size="1" face="sans-serif" class="">></font><tt class=""><font size="3" class="">
</font></tt><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Kopie: </font><font size="1" face="sans-serif" class="">List
for communicating with real GTA04 owners <</font><a href="mailto:gta04-owner@goldelico.com" class=""><font size="1" color="blue" face="sans-serif" class=""><u class="">gta04-owner@goldelico.com</u></font></a><font size="1" face="sans-serif" class="">></font><tt class=""><font size="3" class="">
</font></tt><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Datum: </font><font size="1" face="sans-serif" class="">11.04.2018
19:21</font><tt class=""><font size="3" class=""> </font></tt><font size="1" color="#5f5f5f" face="sans-serif" class=""><br class="">
Betreff: </font><font size="1" face="sans-serif" class="">Re:
[Gta04-owner] Second trial with QtMoko2</font><tt class=""><font size="3" class=""> <br class="">
</font></tt><font size="3" class=""> <br class="">
</font>
<hr class=""><font size="3" class=""><br class="">
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</font><tt class=""><font size="3" class=""><br class="">
Hi Sven, </font></tt><font size="3" class=""><br class="">
</font><tt class=""><font size="3" class=""><br class="">
Am 05.04.2018 um 18:05 schrieb Sven Dyroff <</font></tt><a href="mailto:S.Dyroff@phytec.de" class=""><tt class=""><font size="3" color="blue" class=""><u class="">S.Dyroff@phytec.de</u></font></tt></a><tt class=""><font size="3" class="">>:
</font></tt><font size="3" class=""><br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
Hello Nikolaus,</font><tt class=""><font size="3" class=""> </font></tt><font size="3" class=""><br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
> I have now booted my GTA04A4 and the orientation is completely correct.</font><font size="3" class="">
</font><font size="2" face="sans-serif" class=""><br class="">
> Hm. Maybe a subtle difference between GTA04A4 and A5? They use different
accelerometer chips.</font><tt class=""><font size="3" class=""> </font></tt><font size="3" class=""><br class="">
</font><font size="2" face="sans-serif" class=""><br class="">
something like that is what I already assumed. Would have wondered me if
some scaling factors would have gone lost by just rebuilding QtMoko...</font><font size="3" class="">
<br class="">
</font><tt class=""><font size="3" class=""><br class="">
I have now added a device version detection to swap the horizontal axis
if we run on a GTA04A5: </font></tt><font size="3" class=""><br class="">
</font><font size="3" color="blue" class=""><u class=""><br class="">
</u></font><a href="http://git.goldelico.com/?p=gta04-qtmoko.git;a=commit;h=04c30a3b18be8b55148427d6c63423837f6a77cc" class=""><tt class=""><font size="3" color="blue" class=""><u class="">http://git.goldelico.com/?p=gta04-qtmoko.git;a=commit;h=04c30a3b18be8b55148427d6c63423837f6a77cc</u></font></tt></a><tt class=""><font size="3" class="">
</font></tt><font size="3" class=""><br class="">
</font><tt class=""><font size="3" class=""><br class="">
I have not yet published the new debian packages, but will do soon. So
apt-get update will not <br class="">
yet find anything new. </font></tt><font size="3" class=""><br class="">
</font><tt class=""><font size="3" class=""><br class="">
BR, <br class="">
Nikolaus <br class="">
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