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Wiimote/Extension Controllers/Wii Motion Plus (view source)
Revision as of 15:48, 9 July 2022
, 15:48, 9 July 2022→Information: added the readings into a collapsible box, modified layout
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Reading 0x100 bytes from 0x(4)a60000 produces the following:+A different (Carl Kenner's) Wiimote and Motion Plus:+Two more:+and+
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−== Information ==
+=Data=
−When not activated, the MotionPlus is detected by regular polling (every 8 seconds or so) of 0x(4)a600fe. Writing 0x55 to 0x4A400F0, then 0x00 to 0x4A400FB (standard extension init, works fine even with no extension) re-activates the standard extension, if any, plugged into the MotionPlus pass-through port. The development version of the CWiid driver currently implements this method (without automatic 8 second checks) on the motionplus branch: http://abstrakraft.org/cwiid/browser/branches/motionplus/. Additional information on MotionPlus workings and implementation requirements are at http://abstrakraft.org/cwiid/wiki/MotionPlus.
+When not activated, the MotionPlus is detected by regular polling (every 8 seconds or so) of 0x(4)a600fe. Writing 0x55 to 0x4A400F0, then 0x00 to 0x4A400FB (the standard extension init, works fine even with no extension) re-activates the standard extension, if any, plugged into the MotionPlus pass-through port. The development version of the [[CWiid|CWiid driver]] currently implements this method (without automatic 8 second checks) on the [http://abstrakraft.org/cwiid/browser/branches/motionplus/ motionplus branch]. Additional information on MotionPlus workings and implementation requirements are at http://abstrakraft.org/cwiid/wiki/MotionPlus.
The combination of 3 linear accelerations with 3 angular rates allows what Nintendo refers to as 1:1 motion tracking, which is another way of saying 6DOF (degrees of freedom) over a short time. It's only valid over short times because of the integration involved to convert accelerations and rates into positions (input errors, when integrated, blow up over time).
The combination of 3 linear accelerations with 3 angular rates allows what Nintendo refers to as 1:1 motion tracking, which is another way of saying 6DOF (degrees of freedom) over a short time. It's only valid over short times because of the integration involved to convert accelerations and rates into positions (input errors, when integrated, blow up over time).
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[http://www.ailive.net/lm2.html Wii Motion Plus Documentation at AiLive]
[http://www.ailive.net/lm2.html Wii Motion Plus Documentation at AiLive]
+== Readings ==
−Sample readings of 0x100 bytes from 0x(4)a60000 produces the following:
+{{Collapse|text=
<pre>
<pre>
4a60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4a60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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4a600f0: 55 ff ff ff ff ff ff 10 ff ff 00 00 a6 20 00 05
4a600f0: 55 ff ff ff ff ff ff 10 ff ff 00 00 a6 20 00 05
</pre>
</pre>
+|title=Sample 1}}
−{{Collapse|text=
<pre>
<pre>
4a60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4a60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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4a600f0: 55 ff ff ff ff ff ff 10 ff ff 00 00 a6 20 00 05
4a600f0: 55 ff ff ff ff ff ff 10 ff ff 00 00 a6 20 00 05
</pre>
</pre>
+|title=Sample 2 (Carl Kenner's Wiimote and Motion Plus)}}
−{{Collapse|text=
<pre>
<pre>
4a60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4a60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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4a600f0: 55 ff ff ff ff ff ff 10 ff ff 00 00 a6 20 00 05
4a600f0: 55 ff ff ff ff ff ff 10 ff ff 00 00 a6 20 00 05
</pre>
</pre>
−|title=Sample 3}}
+{{Collapse|text=
<pre>
<pre>
4a60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4a60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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4a600f0: 55 ff ff ff ff ff ff 10 ff ff 00 00 a6 20 00 05
4a600f0: 55 ff ff ff ff ff ff 10 ff ff 00 00 a6 20 00 05
</pre>
</pre>
+|title=Sample 4}}
[[Category:Peripherals]]
[[Category:Peripherals]]