//?This?library?is?free?software;?you?can?redistribute?it?and/or
//?modify?it?under?the?terms?of?the?GNU?Lesser?General?Public
//?License?as?published?by?the?Free?Software?Foundation;?either
//?version?2.1?of?the?License?or?（at?your?option）?any?later?version.

#include?“DallasTemperature.h“

extern?“C“?{
??#include?“WConstants.h“
}

DallasTemperature::DallasTemperature（OneWire*?_oneWire）
??#if?REQUIRESALARMS
??:?_AlarmHandler（&defaultAlarmHandler）
??#endif
{
??_wire?=?_oneWire;
??devices?=?0;
??parasite?=?false;
??bitResolution?=?9;
??waitForConversion?=?true;
}

//?initialize?the?bus
void?DallasTemperature::begin（void）
{
??DeviceAddress?deviceAddress;

??_wire->reset_search（）;
??devices?=?0;?//?Reset?the?number?of?devices?when?we?enumerate?wire?devices

??while?（_wire->search（deviceAddress））
??{
????if?（validAddress（deviceAddress））
????{
??????if?（!parasite?&&?readPowerSupply（deviceAddress））?parasite?=?true;

??????ScratchPad?scratchPad;

??????readScratchPad（deviceAddress?scratchPad）;

	??bitResolution?=?max（bitResolution?getResolution（deviceAddress））;

??????devices++;
????}
??}
}

//?returns?the?number?of?devices?found?on?the?bus
uint8_t?DallasTemperature::getDeviceCount（void）
{
??return?devices;
}

//?returns?true?if?address?is?valid
bool?DallasTemperature::validAddress（uint8_t*?deviceAddress）
{
??return?（_wire->crc8（deviceAddress?7）?==?deviceAddress[7]）;
}

//?finds?an?address?at?a?given?index?on?the?bus
//?returns?true?if?the?device?was?found
bool?DallasTemperature::getAddress（uint8_t*?deviceAddress?uint8_t?index）
{
??uint8_t?depth?=?0;

??_wire->reset_search（）;

??while?（depth?<=?index?&&?_wire->search（deviceAddress））
??{
????if?（depth?==?index?&&?validAddress（deviceAddress））?return?true;
????depth++;
??}

??return?false;
}

//?attempt?to?determine?if?the?device?at?the?given?address?is?connected?to?the?bus
bool?DallasTemperature::isConnected（uint8_t*?deviceAddress）
{
??ScratchPad?scratchPad;
??return?isConnected（deviceAddress?scratchPad）;
}

//?attempt?to?determine?if?the?device?at?the?given?address?is?connected?to?the?bus
//?also?allows?for?updating?the?read?scratchpad
bool?DallasTemperature::isConnected（uint8_t*?deviceAddress?uint8_t*?scratchPad）
{
??readScratchPad（deviceAddress?scratchPad）;
??return?（_wire->crc8（scratchPad?8）?==?scratchPad[SCRATCHPAD_CRC]）;
}

//?read?device‘s?scratch?pad
void?DallasTemperature::readScratchPad（uint8_t*?deviceAddress?uint8_t*?scratchPad）
{
??//?send?the?command
??_wire->reset（）;
??_wire->select（deviceAddress）;
??_wire->write（READSCRATCH）;

??//?TODO?=>?collect?all?comments?&??use?simple?loop
??//?byte?0:?temperature?LSB??
??//?byte?1:?temperature?MSB
??//?byte?2:?high?alarm?temp
??//?byte?3:?low?alarm?temp
??//?byte?4:?DS18S20:?store?for?crc
??//?????????DS18B20?&?DS1822:?configuration?register
??//?byte?5:?internal?use?&?crc
??//?byte?6:?DS18S20:?COUNT_REMAIN
??//?????????DS18B20?&?DS18

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-08-05?13:23??3mm雙色LED模塊\
?????文件??????212927??2014-08-05?13:23??3mm雙色LED模塊\3mm雙色LED模塊.pdf
?????目錄???????????0??2014-08-05?13:23??3色LED模塊\
?????文件??????215849??2014-08-05?13:23??3色LED模塊\3色LED模塊.pdf
?????目錄???????????0??2014-08-05?14:05??3色LED模塊（RGB）\
?????目錄???????????0??2014-08-05?13:23??3色LED模塊（RGB）\3mm雙色LED模塊\
?????文件??????212927??2014-08-05?13:24??3色LED模塊（RGB）\3mm雙色LED模塊\3mm雙色LED模塊.pdf
?????文件??????209571??2014-08-05?13:24??3色LED模塊（RGB）\3色LED模塊（RGB）.pdf
?????目錄???????????0??2014-08-05?13:23??5mm?紅綠雙色?LED（共陰）模塊\
?????文件??????246277??2014-08-05?13:24??5mm?紅綠雙色?LED（共陰）模塊\5mm?紅綠雙色?LED（共陰）模塊?.pdf
?????目錄???????????0??2014-08-05?13:23??7彩自動閃爍LED模塊\
?????文件??????196174??2014-08-05?13:25??7彩自動閃爍LED模塊\7彩自動閃爍LED模塊.pdf
?????目錄???????????0??2014-08-05?13:23??Arduino?繼電器\
?????文件?????2110888??2014-08-05?13:25??Arduino?繼電器\Arduino?繼電器.pdf
?????目錄???????????0??2014-08-05?13:23??傾斜開關\
?????文件??????194934??2014-08-05?13:33??傾斜開關\傾斜開關.pdf
?????目錄???????????0??2014-08-05?13:23??光敏電阻\
?????文件?????2167500??2014-08-05?13:27??光敏電阻\光敏電阻.pdf
?????目錄???????????0??2014-08-05?13:23??光遮斷模塊\
?????文件?????????408??2013-06-25?10:15??光遮斷模塊\光遮斷.txt
?????文件??????192787??2014-08-05?13:27??光遮斷模塊\光遮斷模塊.pdf
?????目錄???????????0??2014-08-05?13:23??雙軸XY搖桿\
?????目錄???????????0??2013-07-11?15:52??雙軸XY搖桿\yaogang\
?????文件?????????367??2013-06-25?10:15??雙軸XY搖桿\yaogang\yaogang.pde
?????文件?????1569822??2014-08-05?13:35??雙軸XY搖桿\游戲搖桿模塊.PDF
?????目錄???????????0??2014-08-05?13:23??大磁簧模塊\
?????文件??????207809??2014-08-05?13:26??大磁簧模塊\大磁簧模塊.pdf
?????目錄???????????0??2014-08-05?13:23??循跡模塊\
?????文件??????197418??2014-08-05?13:38??循跡模塊\循線模塊.pdf
?????目錄???????????0??2014-08-05?13:23??手指偵測心跳模塊\
?????目錄???????????0??2013-07-11?15:52??手指偵測心跳模塊\Project_12_pulse_monitor_test\
............此處省略111個文件信息