?? pcf8583.c
字號(hào):
#include"reg52.h"
#include "intrins.h"
#include "stdio.h"
#include "ctype.h"
#include "string.h"
#define RESET_ADD 0x02
#define RESET_CODE 0x01
#define LEFTMOV_ADD 0x03
#define LEFTMOV_CODE 0
#define LEFTCYC_ADD 0x03
#define LEFTCYC_CODE 0x01
#define RIGHTMOV_ADD 0x03
#define RIGHTMOV_CODE 0x02
#define RIGHTCYC 0x03
#define RIGHTCYC 0x03
#define SYSOFF_ADD 0x04
#define SYSOFF_CODE 0x00
#define SYSON1_ADD 0x04
#define SYSON1_CODE 0x01
#define SYSON2_ADD 0x04
#define SYSON2_CODE 0x03
#define SYSON3_ADD 0x04
#define SYSON3_CODE 0x07
#define DSP_ADD 0x05
#define DSP_CODE 0x0a
#define BCD_ADD 0x05
#define BCD_CODE 0x80
#define TWINKLE_ADD 0x06
#define TWINKLE_CODE 0x00
#define DIG0 0x08
#define DIG1 0x09
#define DIG2 0x0a
#define DIG3 0x0b
#define DIG4 0x0c
#define DIG5 0x0d
#define DIG6 0x0e
#define DIG7 0x0f
#define NO_KEY 0
#define MENU 0x7b
#define CLEAR 0x7f
#define OK 0x7c
#define UP 0x7d
#define DOWN 0x7e
#define CODE0 0x7e
#define CODE1 0x28
#define CODE2 0x5b
#define CODE3 0x6b
#define CODE4 0x2d
#define CODE5 0x67
#define CODE6 0x77
#define CODE7 0x2e
#define CODE8 0x7f
#define CODE9 0x6f
#define CODEF 0x17
#define CODEU 0x7c
#define POINT 0x80
#define year 0x10
#define month 0x11
#define date 0x12
#define hours 0x13
#define minutes 0x14
#define seconds 0x15
#define weekday 0x16
sbit B0=B^0;
sbit B1=B^1;
sbit B2=B^2;
sbit B3=B^3;
sbit B4=B^4;
sbit B5=B^5;
sbit B6=B^6;
sbit B7=B^7;
sbit CH451_DCLK=P0^3;
sbit CH451_DIN=P0^2;
sbit CH451_LOAD=P0^1;
sbit CH451_DOUT=P0^0;
sbit SC=P0^5;
sbit SD=P0^4;
unsigned char timer,key,time;
unsigned char keydata[8]={0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,0};
unsigned char dig0[8]={0,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
unsigned char uled[8]={CODE0,CODE1,CODE2,0,0,0,CODEF,0};
unsigned char dled[8]={CODE0,CODE1,CODE2,CODE2,CODE2,CODEU,CODE2,CODE2};
unsigned char dig[8]={DIG0,DIG1,DIG2,DIG3,DIG4,DIG5,DIG6,DIG7};
/*-------------------------------------------------------*/
void timer0(void) interrupt 1 /*中斷T0*/
{
TH0=0x10;
timer++;
if(timer<8)return; /*計(jì)8次返回*/
timer=0;
}
/*------------------------------------------------------------*/
void CH451_WRITE(unsigned char uadd,unsigned char ux)
{
CH451_DIN=0;CH451_DIN=1;
B=ux;
CH451_DIN=B0;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B1;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B2;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B3;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B4;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B5;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B6;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B7;CH451_DCLK=0;CH451_DCLK=1;
B=uadd;
CH451_DIN=B0;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B1;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B2;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=B3;CH451_DCLK=0;CH451_DCLK=1;
CH451_LOAD=0;CH451_LOAD=1;
}
/*-----------------------------------*/
char CH451_READ() /*讀CH451,當(dāng)有鍵按下時(shí),從DOUT口串行讀出數(shù)據(jù)*/
{
CH451_DIN=0;CH451_DIN=1;
CH451_DIN=1;CH451_DCLK=0;CH451_DCLK=1; /*發(fā)送兩個(gè)字節(jié),將第二個(gè)CH451高四位送入7,通知其讀鍵值*/
CH451_DIN=1;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=1;CH451_DCLK=0;CH451_DCLK=1;
CH451_DIN=0;CH451_DCLK=0;CH451_DCLK=1;
CH451_LOAD=0;CH451_LOAD=1; /*加載數(shù)據(jù)*/
B7=0; /*讀鍵值,并將其存入B寄存器中*/
B6=CH451_DOUT;CH451_DCLK=0;CH451_DCLK=1;
B5=CH451_DOUT;CH451_DCLK=0;CH451_DCLK=1;
B4=CH451_DOUT;CH451_DCLK=0;CH451_DCLK=1;
B3=CH451_DOUT;CH451_DCLK=0;CH451_DCLK=1;
B2=CH451_DOUT;CH451_DCLK=0;CH451_DCLK=1;
B1=CH451_DOUT;CH451_DCLK=0;CH451_DCLK=1;
B0=CH451_DOUT;CH451_DCLK=0;CH451_DCLK=1;
if(B6==0)B=0; /*如果鍵值為釋放時(shí)的值,將B清零*/
return B;
}
/*-----------------------------------------------*/
display_led()
{
unsigned char i;
for(i=0;i<8;i++)
{
CH451_WRITE(dig[i],keydata[i]);
}
}
/*-------------------------------------------------------------------*/
start_pcf8583()
{
SD=0;_nop_();_nop_();SC=0;
}
/*-------------------------------------------------------------------*/
stop_pcf8583()
{
SD=0;SC=1;_nop_();_nop_();SD=1;
}
/*---------------------------------------------------------------------*/
void write_pcf8583(char x)
{
B=x;
SD=B7;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
SD=B6;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
SD=B5;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
SD=B4;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
SD=B3;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
SD=B2;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
SD=B1;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
SD=B0;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
SD=1;SC=1;_nop_();_nop_();SC=0;
}
/*-------------------------------------------------------------------*/
void write_byte_pcf8583(unsigned char add,char x)
{
start_pcf8583();
write_pcf8583(0xa0);
write_pcf8583(add);
write_pcf8583(x);
stop_pcf8583();
}
/*----------------------------------------------------------------------*/
char read_pcf8583()
{
SD=1;
B7=SD;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
B6=SD;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
B5=SD;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
B4=SD;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
B3=SD;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
B2=SD;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
B1=SD;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
B0=SD;SC=1;_nop_();_nop_();SC=0;_nop_();_nop_();
SC=1;_nop_();_nop_();SC=0;
return B;
}
/*-------------------------------------------------------------------------*/
char read_byte_pcf8583(unsigned char add)
{
start_pcf8583();
write_pcf8583(0xa0);
write_pcf8583(add);
stop_pcf8583();
start_pcf8583();
write_pcf8583(0xa1);
read_pcf8583();
stop_pcf8583();
}
/*---------------------------------------------------------------------------*/
void main(void)
{
TMOD=0x01; /*設(shè)置定時(shí)中斷T0*/
EA=1;
ET0=1;
TR0=1;
for(;;)
{
while(timer!=0) PCON=0x01;
CH451_WRITE(SYSON2_ADD,SYSON2_CODE);
CH451_WRITE(DSP_ADD,DSP_CODE);
display_led();
key=CH451_READ();
CH451_WRITE(DIG7,key);
time=read_byte_pcf8583(seconds);
CH451_WRITE(DIG7,time);
}
}
/*------------------------------------------------------------*/
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