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Dependencies:   USBDevice mbed-rtos mbed

Fork of JoyStick by Ries Twisk

AnalogInFiltered.cpp@0:33bc88c4ab31, 2013-08-28 (annotated)

Committer:
rvt
Date:
Wed Aug 28 02:33:03 2013 +0000
Revision:
0:33bc88c4ab31
Child:
2:ae7a31a3c618
Initial release with RTOS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rvt 0:33bc88c4ab31 1 #include "AnalogInFiltered.h"
rvt 0:33bc88c4ab31 2
rvt 0:33bc88c4ab31 3
rvt 0:33bc88c4ab31 4 AnalogInFiltered::AnalogInFiltered(AnalogFilterInterface *filter, PinName pin) {
rvt 0:33bc88c4ab31 5 _ain = new AnalogIn(pin);
rvt 0:33bc88c4ab31 6 _filter = filter;
rvt 0:33bc88c4ab31 7 _lastValue=0;
rvt 0:33bc88c4ab31 8 }
rvt 0:33bc88c4ab31 9
rvt 0:33bc88c4ab31 10 AnalogInFiltered::~AnalogInFiltered() {
rvt 0:33bc88c4ab31 11 delete(_ain);
rvt 0:33bc88c4ab31 12 delete(_filter);
rvt 0:33bc88c4ab31 13 }
rvt 0:33bc88c4ab31 14
rvt 0:33bc88c4ab31 15 long AnalogInFiltered::getValue() {
rvt 0:33bc88c4ab31 16 return _filter->getData();
rvt 0:33bc88c4ab31 17 }
rvt 0:33bc88c4ab31 18
rvt 0:33bc88c4ab31 19 void AnalogInFiltered::measure () {
rvt 0:33bc88c4ab31 20 _filter->setData(_ain->read_u16() - 32768);
rvt 0:33bc88c4ab31 21 }
rvt 0:33bc88c4ab31 22
rvt 0:33bc88c4ab31 23
rvt 0:33bc88c4ab31 24 bool AnalogInFiltered::getIsChanged(int offSet) {
rvt 0:33bc88c4ab31 25 _filter->setData(_ain->read_u16() - 32768);
rvt 0:33bc88c4ab31 26 if (abs(_filter->getData() - _lastValue) > offSet) {
rvt 0:33bc88c4ab31 27 _lastValue = _filter->getData();
rvt 0:33bc88c4ab31 28 return true;
rvt 0:33bc88c4ab31 29 }
rvt 0:33bc88c4ab31 30 return false;
rvt 0:33bc88c4ab31 31 }
rvt 0:33bc88c4ab31 32