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| author | Marcin Bukat <marcin.bukat@gmail.com> | 2010-04-30 12:42:51 +0000 |
|---|---|---|
| committer | Marcin Bukat <marcin.bukat@gmail.com> | 2010-04-30 12:42:51 +0000 |
| commit | 2a50270e44ae03e4e5e7fee72f1f7f6db54be54b (patch) | |
| tree | 07bc82b86109df8ebc9c15efdf66b8a366b7a070 /firmware/target/coldfire | |
| parent | fe147cec651486d39967f24d0d1bbe6ae1cd067b (diff) | |
| download | rockbox-2a50270e44ae03e4e5e7fee72f1f7f6db54be54b.zip rockbox-2a50270e44ae03e4e5e7fee72f1f7f6db54be54b.tar.gz rockbox-2a50270e44ae03e4e5e7fee72f1f7f6db54be54b.tar.bz2 rockbox-2a50270e44ae03e4e5e7fee72f1f7f6db54be54b.tar.xz | |
HD200 - remove moving average filtering of ADC readouts
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25765 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/coldfire')
| -rw-r--r-- | firmware/target/coldfire/mpio/hd200/button-hd200.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/firmware/target/coldfire/mpio/hd200/button-hd200.c b/firmware/target/coldfire/mpio/hd200/button-hd200.c index b40c332..dbc558a 100644 --- a/firmware/target/coldfire/mpio/hd200/button-hd200.c +++ b/firmware/target/coldfire/mpio/hd200/button-hd200.c @@ -49,10 +49,6 @@ int button_read_device(void) int data = 0; static bool hold_button = false; - /* for moving average filter */ - static unsigned short button_filter[4]; - static unsigned char index; - bool hold_button_old; /* normal buttons */ @@ -67,14 +63,7 @@ int button_read_device(void) if (!hold_button) { - - /* simple moving average filter with 4 item window */ - button_filter[index&0x03] = adc_scan(ADC_BUTTONS); - index++; - - data = (button_filter[0]+button_filter[1] \ - +button_filter[2]+button_filter[3])>>2; - + data = adc_scan(ADC_BUTTONS); if (data < 2250) // valid button { |