/*******************************************
函數名稱：DAC8552驅動程序
功????能：16位DA采樣
參????數：P2口?BIT0--SYNC，BIT1--SCLK?BIT2--DIN
??????????
返回值??：
********************************************/
#include??
#define?uchar?unsigned?char
#define?uint??unsigned?int

#define?SYNC?P2OUT|=BIT0;//同步信號==1
#define?SYNC_N?P2OUT&=~BIT0;//同步信號==0

#define?SCLK?P2OUT|=BIT1;
#define?SCLK_N?P2OUT&=~BIT1;

#define?DIN?P2OUT|=BIT2;
#define?DIN_N?P2OUT&=~BIT2;

void?NOP（）{_NOP（）;_NOP（）;_NOP（）;_NOP（）;_NOP（）;_NOP（）;}
void?spi（uint?data1uint?data2uint?data3）{
??SCLK;
??SYNC;
??SCLK_N;
??SYNC_N;
??for（int?i=0;i<8;i++）{
??if（（data1&0x80）==0x80）DIN;//高位先輸入，從DB23--DB0開始
??if（（data1&0x80）==0x00）?DIN_N;
??SCLK;
??NOP（）;
??SCLK_N;
??data1<<=1;
??}
??for（int?i=0;i<8;i++）{
??if（（data2&0x80）==0x80）DIN;
??if（（data2&0x80）==0x00）?DIN_N;
??SCLK;
??NOP（）;
??SCLK_N;
??data2<<=1;
??}
??for（int?i=0;i<8;i++）{
??if（（data3&0x80）==0x80）DIN;
??if（（data3&0x80）==0x00）DIN_N;
??SCLK;
??NOP（）;
??SCLK_N;
??data3<<=1;
??}
??SYNC;
}

void?main（）{
????WDTCTL?=?WDTPW?+?WDTHOLD;???????//關閉看門狗???
????
????P2DIR?|=?BIT2+BIT1+BIT0;????//定義P3口低三位為通信口
????while（1）{
????spi（0x100x660x66）;
????NOP（）;NOP（）;NOP（）;
????spi（0x240xFF0x00）;
????for（int?i=0;i<500;i++）;
????}
????
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????749408??2013-08-02?23:36??DAC8552\dac8552.pdf

?????文件??????????0??2013-08-01?16:49??DAC8552\dac8552.tmp

?????文件?????205288??2013-08-02?11:00??DAC8552\dac8552.tmp1

?????文件??????24271??2013-08-01?16:50??DAC8552\QQ截圖20130729201334.jpg

?????文件??????23659??2013-08-01?16:50??DAC8552\QQ截圖20130729201430.jpg

?????文件??????31762??2013-08-01?16:49??DAC8552\QQ截圖20130729201523.jpg

?????文件??????20718??2013-07-30?10:50??DAC8552\SPI\SPI\Backup?（2）?of?spi.ewd

?????文件??????50426??2013-07-30?11:05??DAC8552\SPI\SPI\Backup?（2）?of?spi.ewp

?????文件??????20718??2013-07-30?10:50??DAC8552\SPI\SPI\Backup?of?spi.ewd

?????文件??????50426??2013-07-30?11:05??DAC8552\SPI\SPI\Backup?of?spi.ewp

?????文件??????18160??2013-07-30?10:59??DAC8552\SPI\SPI\Debug\Exe\spi.d43

?????文件????????774??2013-08-02?22:19??DAC8552\SPI\SPI\Debug\Exe\spi.txt

?????文件?????409380??2013-08-02?22:19??DAC8552\SPI\SPI\Debug\Obj\main.pbi

?????文件???????9927??2013-08-02?22:19??DAC8552\SPI\SPI\Debug\Obj\main.pbi.cout

?????文件??????10761??2013-08-02?22:19??DAC8552\SPI\SPI\Debug\Obj\main.r43

?????文件?????413358??2013-08-02?22:19??DAC8552\SPI\SPI\Debug\Obj\spi.pbd

?????文件?????413358??2013-08-02?22:19??DAC8552\SPI\SPI\Debug\Obj\spi.pbd.browse

?????文件???????1361??2013-08-02?23:36??DAC8552\SPI\SPI\main.c

?????文件???????1573??2013-08-02?21:50??DAC8552\SPI\SPI\settings\spi.cspy.bat

?????文件?????????63??2013-08-02?23:36??DAC8552\SPI\SPI\settings\spi.dbgdt

?????文件????????571??2013-08-02?23:36??DAC8552\SPI\SPI\settings\spi.dni

?????文件???????3284??2013-08-02?23:36??DAC8552\SPI\SPI\settings\spi.wsdt

?????文件???????2495??2013-08-02?23:36??DAC8552\SPI\SPI\spi.dep

?????文件??????20457??2013-08-02?21:34??DAC8552\SPI\SPI\spi.ewd

?????文件??????52315??2013-08-02?21:50??DAC8552\SPI\SPI\spi.ewp

?????文件????????157??2013-07-30?10:50??DAC8552\SPI\SPI\spi.eww

?????文件?????????25??2013-08-02?23:36??DAC8552\SPI\SPI\spiCustomSfr.sfr

?????文件??????20946??2013-08-01?16:53??DAC8552\SPI.zip

?????目錄??????????0??2013-08-02?21:50??DAC8552\SPI\SPI\Debug\Exe

????..AD...?????????0??2013-08-01?16:52??DAC8552\SPI\SPI\Debug\List

............此處省略9個文件信息