diff options
| author | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-05-14 21:57:38 +0000 |
|---|---|---|
| committer | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-05-14 21:57:38 +0000 |
| commit | 443b010ba42ad02107b04c33ccb77da56b5e82ff (patch) | |
| tree | aed7b7c4f84c4b2016b606b390e818023d2c3841 /nuttx/Documentation | |
| parent | de973b7ed012f06aa934407840bedb921ecf3dec (diff) | |
Improved thresholding logic in the STMPE11 driver; NxWM: Oops minimizing wrong application
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4737 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'nuttx/Documentation')
| -rw-r--r-- | nuttx/Documentation/NuttxPortingGuide.html | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/nuttx/Documentation/NuttxPortingGuide.html b/nuttx/Documentation/NuttxPortingGuide.html index 4ded08f0fb..15019ad102 100644 --- a/nuttx/Documentation/NuttxPortingGuide.html +++ b/nuttx/Documentation/NuttxPortingGuide.html @@ -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> |