ADS1100的51单片机程序.docx

ADS1100的51单片机程序#include #include #define uint unsigned int#define uchar unsigned char/*ADS1100*/sbit Sda=P30; sbit Scl=P31;/*12864*/ sbit rs=P20; sbit rw=P21; sbit psb=P22; sbit e=P25; sbit rst=P24;sbit WEI=P27;/定义位选void delay_xms(uint xms)uint i,j;for(i=xms;i0;i-)for(j=112;j0;j-);/*12864display*/ write_com(uchar com) rs=0;rw=0;delay_xms(5);P0=com;e=1;delay_xms(5);e=0; write_date(uchar date) rs=1;rw=0;delay_xms(5);P0=date;e=1;delay_xms(5);e=0; void init_12864() P0=0xff; WEI=1; WEI=0; rs=0;rw=0;e=0;psb=1;rst=1;delay_xms(50);write_com(0X30);delay_xms(1);write_com(0X30);delay_xms(1);write_com(0X0C);delay_xms(1);write_com(0X01);delay_xms(15);write_com(0X06);delay_xms(1); /*AD TRANSFER*/*- 启动IIC总线-*/ void start(void) Sda=1; _nop_(); Scl=1; _nop_(); Sda=0; _nop_(); Scl=0; /*- 停止IIC总线-*/ void stop(void) Sda=0; _nop_(); Scl=1; _nop_(); Sda=1; _nop_(); Scl=0; /*- 应答IIC总线-*/ void ack(void) Sda=0;_nop_();Scl=1;_nop_();Scl=0;_nop_();/*- 非应答IIC总线-*/void noack(void) Sda=1; _nop_(); Scl=1; _nop_(); Scl=0; _nop_(); /*- 发送一个字节-*/ void send(unsigned char Data) unsigned char BitCounter=8; unsigned char temp; do temp=Data; Scl=0; _nop_(); if(temp&0x80)=0x80) Sda=1; else Sda=0;Scl=1;temp=Data1;Data=temp;BitCounter-; while(BitCounter); Scl=0; /*- 读入一个字节并返回-*/ unsigned char read(void) unsigned char temp=0; unsigned char temp1=0; unsigned char BitCounter=8; Sda=1; do Scl=0; _nop_(); Scl=1; _nop_(); if(Sda) temp=temp|0x01; else temp=temp&0xfe; if(BitCounter-1) temp1=temp1; temp=temp1; BitCounter-; while(BitCounter);return(temp); void display(long k)unsigned int temp;unsigned long int v; v=3125*k ;v=v/2048;temp=v/10000;write_com(0x80);write_date(0x30+temp);temp=v/1000%10;write_date(0x30+temp);temp=v/100%10;write_date(0x30+temp);temp=v/10%10;write_date(0x30+temp);write_date(0x2e);temp=v%10;write_date(0x30+temp);void main() short m,n;long k;init_12864(); while(1)start();send(0x90);ack();send(0x8c);ack();