📄 led板显示程序.txt
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***************************************************/
/****LED管为共阴极:共阴极发光管高电平点亮************************/
/***以0x00||0x55||0xaa作为开始符*********************************/
/****baud=9600 **************************************************/
/****use 6 bit display*******************************************/
/****程序编写者：********************************************/
/****程序编写时间：2003.11.19************************************/
#include <absacc.h>
#include <reg51.h>
#include <stdarg.h>
#include <stdio.h>
#include <intrins.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
//宏定义
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
#define POSITIVE 10; //存放正号（正号消隐）
#define NEGATIVE 11; //存放负号（负号显示"-")
#define NUM_AXIS 1 ;//存放第几轴显示
sbit A5 = P1^7;
sbit A4 = P3^7;
sbit A3 = P3^5;
sbit A2 = P3^4;
sbit A1 = P3^3;
sbit A0 = P3^2;
//变量初始化定义
uint data verify; //存放CRC校验的返回值
uchar data check_crcL; //存放分离后，CRC的低位
uchar data check_crcH; //存放分离后，CRC的高位
uchar data counter=0; //记录接受字节的个数
uchar data axis1_high=0; //接受到轴1数的高位
uchar data axis1_low=0; //接受到轴1数的低位
uchar data axis2_high=0; //接受到轴2数的高位
uchar data axis2_low=0; //接受到轴2数的高位
int data axis1_num=0; //组合后的轴1数
int data axis2_num=0; //组合后的轴2数
uchar data inbuffer[55]; //存放串口传送过来的数据
int data timer_counter=0; //当定时器十毫秒到时，timer_counter++;
bit data sec_timer_flag=0; //一秒钟到标志
bit data switch_flag=1; //切换显示是第一轴数据显示，还是第二轴显示
bit data switch_temp_flag=0;
uchar data error_num=0;
uchar data num_axis=0;
//显示缓冲区
uchar data disp_led1=0;
uchar data disp_led2=0;
uchar data disp_led3=0;
uchar data disp_led4=0;
uchar data disp_led5=0;
uchar data disp_led6=0;
bit data receive_flag=0;//接受数据标志
//要显示的数据
int disp_data;
/* Table of CRC values for high-order byte */
/*static unsigned char code auchCRCHi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
} ;
//Low Order Byte Table
/* Table of CRC values for low-order byte */
/*static char code auchCRCLo[] = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,
0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,
0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,
0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,
0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,
0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,
0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,
0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,
0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,
0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,
0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,
0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,
0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,
0x43, 0x83, 0x41, 0x81, 0x80, 0x40
};
*/
//延时程序
void delayXms(uint time) //延时xxms time<744
{
ulong data i;
for(i=15*time;i>0;i--){}
}
//查表数组
static uchar code Tab_cathode[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00,0x40};//共阴极显示0--9和"灭"和"-"
static uchar code Tab_anode[] ={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff,0xbf};//共阳极显示0--9和"灭"和"-"
//入口参数：Buffer是将校验的数据的首址，Length 为待校验的长度。
//出口参数：auchCRCHi 是CRC的高位，auchCRCLo 是CRC的低位。
/*uint crc16(uchar *buffer, uint length)
{
data uchar uchCRCHi = 0xFF ; /* high CRC byte initialized */
/* data uchar uchCRCLo = 0xFF ; /* low CRC byte initialized */
// data unsigned index ; /* will index into CRC lookup*/
// while (length--) /* pass through message buffer */
// {
// index = uchCRCHi ^ * buffer ++ ; /* calculate the CRC */
// uchCRCHi = uchCRCLo ^ auchCRCHi[index] ;
// uchCRCLo = auchCRCLo[index] ;
// }
// return (uchCRCHi<<8|uchCRCLo);
//}
//串口初始化
void init_serialcomm(void)
{
SCON= 0x50; //SCON: serail mode 1, 8-bit UART, enable ucvr
TMOD= 0x21; //TMOD: timer 1, mode 2, 8-bit reload
PCON= 0x80; //SMOD=1;
TH1=0xfa;
TL1=0xfa; //Baud:9600 fosc=11.0592MHz
ES=1;
TR1= 1; //timer 1 run
}
//10ms定时器初始化
void init_timer(void)
{
TMOD=0x21; //timer0:16bit unreload timer1:16bit unreload
TH0=-(9216/256); //load timer0 (10ms per interrupt 11.0592MHz)
TL0=-(9216%256);
ET0=1; //T/C0开中断
TR0=1; //启动定时器
}
//利用定时器0的方式1编程，采用中断方式
void timer0 (void) interrupt 1
{
TH0=-(9216/256); //load timer0 (10ms per interrupt 11.0593MHz)
TL0=-(9216%256);
timer_counter+=1;
if(timer_counter>=200)
{
timer_counter=0;
sec_timer_flag=1;
}
}
//串行中断程序
void serial () interrupt 4 using 3
{
ES=0;
if(RI)//当接受完一个字节后
{
uchar ch;
receive_flag=1;
ch=SBUF;
if(counter>=50)
{
counter=0;
}
counter++;
inbuffer[counter]=ch;
if(ch==0xdd)
{
if(inbuffer[counter-2]==0xbb&&inbuffer[counter-1]==0xcc&&inbuffer[counter]==0xdd)
{
//如果结束符正确
if(inbuffer[counter-21]==0x00&&inbuffer[counter-20]==0x55&&inbuffer[counter-19]==0xaa)
{
//如果起始位正确
if(inbuffer[counter-17]==0xd0)
{
//如果功能码正确
//verify=crc16(&inbuffer[counter-21],17);//计算CRC校验
//check_crcL=verify; //存放CRC校验的低位
//check_crcH=verify>>8; //存放CRC校验的高位
//if(check_crcL==inbuffer[counter-3]&&check_crcH==inbuffer[counter-4])
//{
//如果CRC校验通过，取第1组轴数
axis1_high=inbuffer[counter-14];//轴1数高位字节
axis1_low =inbuffer[counter-13];//轴1数低位字节
axis1_num=axis1_high*256+axis1_low; //计算出总的轴数
//取第二组轴数
axis2_high=inbuffer[counter-12];
axis2_low =inbuffer[counter-11];
axis2_num =axis2_high*256+axis2_low;
counter=0;
error_num=0;
//}
}
else
{
error_num=3;//function error
}
}
else
{
error_num=2;//last errror
}
}
else
{
error_num=1;//begin error
}
}
}
RI=0;
ES=1;
}
//分离BCD码
void seperate_bcd(int d)
{
int abs_d;
uchar bcd1,bcd2,bcd3,bcd4,bcd5;
if(d<0) //如果轴数为负数
{
if(d>-10)
{
abs_d=abs(d);
bcd1=abs_d;
bcd2=NEGATIVE;
bcd3=10;
bcd4=10;
bcd5=10;
disp_led1=Tab_cathode[bcd1];//第一个数码管显示的值
disp_led2=Tab_cathode[bcd2];//符号
disp_led3=Tab_cathode[bcd3];//消隐
disp_led4=Tab_cathode[bcd4];//消隐
disp_led5=Tab_cathode[bcd5];//消隐
disp_led6=Tab_cathode[num_axis];
}
else if(d>-100&&d<=-10)
{
abs_d=abs(d);
bcd5=10;
bcd4=10;
bcd3=NEGATIVE;
bcd2=abs_d/10;
bcd1=abs_d%10;
disp_led1=Tab_cathode[bcd1];//第一个数码管显示的值
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