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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-05-14 21:57:38 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-05-14 21:57:38 +0000 |
| commit | 5d5fb0b5646aed4cb074eb317fc09170645c7a3f (patch) | |
| tree | aed7b7c4f84c4b2016b606b390e818023d2c3841 /nuttx/configs/README.txt | |
| parent | 8c194ec17b4fc4810bde451e803d9cb29db28e59 (diff) | |
| download | px4-nuttx-5d5fb0b5646aed4cb074eb317fc09170645c7a3f.tar.gz px4-nuttx-5d5fb0b5646aed4cb074eb317fc09170645c7a3f.tar.bz2 px4-nuttx-5d5fb0b5646aed4cb074eb317fc09170645c7a3f.zip | |
Improved thresholding logic in the STMPE11 driver; NxWM: Oops minimizing wrong application
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4737 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/README.txt')
| -rw-r--r-- | nuttx/configs/README.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/nuttx/configs/README.txt b/nuttx/configs/README.txt index 15ff30e11..fc85e89e1 100644 --- a/nuttx/configs/README.txt +++ b/nuttx/configs/README.txt @@ -814,6 +814,13 @@ defconfig -- This is a configuration file similar to the Linux Disable driver temperature sensor functionality. CONFIG_STMPE11_REGDEBUG Enabled very low register-level debug output. Requires CONFIG_DEBUG. + CONFIG_STMPE11_THRESHX and CONFIG_STMPE11_THRESHY + 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 Analog Devices |