/*
?*????LedControl.cpp?-?A?library?for?controling?Leds?with?a?MAX7219/MAX7221
?*????Copyright?（c）?2007?Eberhard?Fahle
?*?
?*????Permission?is?hereby?granted?free?of?charge?to?any?person
?*????obtaining?a?copy?of?this?software?and?associated?documentation
?*????files?（the?“Software“）?to?deal?in?the?Software?without
?*????restriction?including?without?limitation?the?rights?to?use
?*????copy?modify?merge?publish?distribute?sublicense?and/or?sell
?*????copies?of?the?Software?and?to?permit?persons?to?whom?the
?*????Software?is?furnished?to?do?so?subject?to?the?following
?*????conditions:
?*?
?*????This?permission?notice?shall?be?included?in?all?copies?or?
?*????substantial?portions?of?the?Software.
?*?
?*????THE?SOFTWARE?IS?PROVIDED?“AS?IS“?WITHOUT?WARRANTY?OF?ANY?KIND
?*????EXPRESS?OR?IMPLIED?INCLUDING?BUT?NOT?LIMITED?TO?THE?WARRANTIES
?*????OF?MERCHANTABILITY?FITNESS?FOR?A?PARTICULAR?PURPOSE?AND
?*????NONINFRINGEMENT.?IN?NO?EVENT?SHALL?THE?AUTHORS?OR?COPYRIGHT
?*????HOLDERS?BE?LIABLE?FOR?ANY?CLAIM?DAMAGES?OR?OTHER?LIABILITY
?*????WHETHER?IN?AN?ACTION?OF?CONTRACT?TORT?OR?OTHERWISE?ARISING
?*????FROM?OUT?OF?OR?IN?CONNECTION?WITH?THE?SOFTWARE?OR?THE?USE?OR
?*????OTHER?DEALINGS?IN?THE?SOFTWARE.
?*/


#include?“LedControl.h“

//the?opcodes?for?the?MAX7221?and?MAX7219
#define?OP_NOOP???0
#define?OP_DIGIT0?1
#define?OP_DIGIT1?2
#define?OP_DIGIT2?3
#define?OP_DIGIT3?4
#define?OP_DIGIT4?5
#define?OP_DIGIT5?6
#define?OP_DIGIT6?7
#define?OP_DIGIT7?8
#define?OP_DECODEMODE??9
#define?OP_INTENSITY???10
#define?OP_SCANLIMIT???11
#define?OP_SHUTDOWN????12
#define?OP_DISPLAYTEST?15

LedControl::LedControl（int?dataPin?int?clkPin?int?csPin?int?numDevices）?{
????SPI_MOSI=dataPin;
????SPI_CLK=clkPin;
????SPI_CS=csPin;
????if（numDevices<=0?||?numDevices>8?）
????????numDevices=8;
????maxDevices=numDevices;
????pinMode（SPI_MOSIOUTPUT）;
????pinMode（SPI_CLKOUTPUT）;
????pinMode（SPI_CSOUTPUT）;
????digitalWrite（SPI_CSHIGH）;
????SPI_MOSI=dataPin;
????for（int?i=0;i<64;i++）?
????????status[i]=0x00;
????for（int?i=0;i????????spiTransfer（iOP_DISPLAYTEST0）;
????????//scanlimit?is?set?to?max?on?startup
????????setScanLimit（i7）;
????????//decode?is?done?in?source
????????spiTransfer（iOP_DECODEMODE0）;
????????clearDisplay（i）;
????????//we?go?into?shutdown-mode?on?startup
????????shutdown（itrue）;
????}
}

int?LedControl::getDeviceCount（）?{
????return?maxDevices;
}

void?LedControl::shutdown（int?addr?bool?b）?{
????if（addr<0?||?addr>=maxDevices）
????????return;
????if（b）
????????spiTransfer（addr?OP_SHUTDOWN0）;
????else
????????spiTransfer（addr?OP_SHUTDOWN1）;
}

void?LedControl::setScanLimit（int?addr?int?limit）?{
????if（addr<0?||?addr>=maxDevices）
????????return;
????if（limit>=0?&&?limit<8）
????????spiTransfer（addr?OP_SCANLIMITlimit）;
}

void?LedControl::setIntensity（int?addr?int?intensity）?{
????if（addr<0?||?addr>=maxDevices）
????????return;
????if（intensity>=0?&&?intensity<16）	
????????spiTransfer（addr?OP_INTENSITYintensity）

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-07-19?12:21??Max7219\
?????目錄???????????0??2016-07-19?11:07??Max7219\block\
?????文件????????1353??2016-07-19?13:09??Max7219\block\Max7219.js
?????目錄???????????0??2016-07-19?11:08??Max7219\generator\
?????文件????????2429??2016-07-19?13:09??Max7219\generator\Max7219.js
?????目錄???????????0??2016-07-19?12:21??Max7219\LedControl\
?????目錄???????????0??2016-07-19?12:21??Max7219\LedControl\examples\
?????目錄???????????0??2016-07-19?12:21??Max7219\LedControl\examples\LCDemo7Segment\
?????文件????????1690??2015-04-27?02:28??Max7219\LedControl\examples\LCDemo7Segment\LCDemo7Segment.ino
?????目錄???????????0??2016-07-19?12:21??Max7219\LedControl\examples\LCDemoCascadedDevices\
?????文件????????1483??2015-04-27?02:28??Max7219\LedControl\examples\LCDemoCascadedDevices\LCDemoCascadedDevices.ino
?????目錄???????????0??2016-07-19?12:21??Max7219\LedControl\examples\LCDemoMatrix\
?????文件????????4125??2015-04-27?02:28??Max7219\LedControl\examples\LCDemoMatrix\LCDemoMatrix.ino
?????文件?????????637??2015-04-27?02:28??Max7219\LedControl\keywords.txt
?????文件?????????391??2015-04-27?02:28??Max7219\LedControl\library.properties
?????文件????????1101??2015-04-27?02:28??Max7219\LedControl\LICENSE
?????文件?????????638??2015-04-27?02:28??Max7219\LedControl\README.md
?????目錄???????????0??2016-07-19?12:21??Max7219\LedControl\src\
?????文件????????5741??2015-04-27?02:28??Max7219\LedControl\src\LedControl.cpp
?????文件????????7180??2015-04-27?02:28??Max7219\LedControl\src\LedControl.h
?????文件????????2372??2016-07-19?12:21??Max7219\Max7219.xml