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Improved thresholding logic in the STMPE11 driver; NxWM: Oops minimizing wrong application

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4737 7fd9a85b-ad96-42d3-883c-3090e2eb8679
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patacongo
2012-05-14 21:57:38 +00:00
parent db2bfa3e69
commit 383e7a0c97
11 changed files with 69 additions and 13 deletions
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nuttx/Documentation/NuttxPortingGuide.html
+9
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@@ -4730,6 +4730,15 @@ build
<code>CONFIG_STMPE11_REGDEBUG</code>:
Enabled very low register-level debug output. Requires <code>CONFIG_DEBUG</code>.
</li>
<li>
<code>CONFIG_STMPE11_THRESHX</code> and <code>CONFIG_STMPE11_THRESHY</code>:
STMPE11 touchscreen data comes in a a very high rate. New touch positions
will only be reported when the X or Y data changes by these thresholds.
This trades reduces data rate for some loss in dragging accuracy. The
STMPE11 is configure for 12-bit values so the raw ranges are 0-4095. So
for example, if your display is 320x240, then THRESHX=13 and THRESHY=17
would correspond to one pixel. Default: 12
</li>
</ul>
<h3>Analog Devices</h3>