DAC.rar_DAC_DAC 5615_DAC芯片

/********************************************* example program for 51 download board @11.0592MHz test TLC5615 www.mcufan.com *********************************************/ #include <reg52.h> sbit DIN=P2^0; /*dac i/o */ sbit SCLK=P1^1; sbit CS=P1^2; void delay(unsigned us) //delay time {while(us--); } void wr_dac(unsigned int DAT) { unsigned char i; SCLK=0; /*INITIAL*/ delay(5); DIN=0; delay(5); CS=1; delay(5); CS=0; DAT=DAT<<6; for(i=0;i<12;i++) { DIN=DAT&0x8000; DAT=DAT<<1; SCLK=1; delay(5); SCLK=0; } delay(5); CS=1; } main() { unsigned int dac=0; while(1) { dac=1023; wr_dac(dac); dac=0; wr_dac(dac); } }