devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

HD200 - remove moving average filtering of ADC readouts

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25765 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Marcin Bukat 2010-04-30 12:42:51 +00:00
parent fe147cec65
commit 2a50270e44
1 changed files with 1 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

13
firmware/target/coldfire/mpio/hd200/button-hd200.c
View file

@ -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
{