tlc5615cp跟TLV5618AI有什么区别？

TLC5615是DAC，把数字量换成电压值输出，输出值＝2×（数字量段罩/1024）×Vref

void DAC(unsigned int dat)

{

unsigned char data tmp,cnt

SPI_CP=1

//12bit mode

SPI_CS = 0 //CS of DAC

//bit[11..10]

tmp = (dat/256) &0x03

cnt=2

do{

SPI_CP=0

SPI_DI=tmp &0x02

tmp<<=1

SPI_CP=1

}while(--cnt)

//袭裂bit[9..2]

tmp = dat%256

cnt=8

do{

SPI_CP=0

SPI_DI=tmp &0x80

tmp<<=1

SPI_CP=1

}while(--cnt)

//2 Dumpy bit,don't care

cnt=2

do{

SPI_CP=0

SPI_DI=1

SPI_CP=1

}while(--cnt)

SPI_CS = 1

}

程序是我一个设计拍燃闭里的，

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