标题: 基于VB实现单片机控制步进电机有了单片机的程序，谁会VB的编程 [打印本页]
作者: guoxin123 时间: 2015-5-6 10:17
标题: 基于VB实现单片机控制步进电机有了单片机的程序，谁会VB的编程
#include "reg52.h"
#include "INTRINS.H"
#include <absacc.h>
#include <math.h>
#define uint unsigned int
#define uchar unsigned char
void check_addr(void); /*地址核对*/
uchar code slave_addr[4]={00, 01, 02, 255}; /*从机地址*/
uchar idata T0low, T0high,common_count,input_order,cmd_in_permit,interval; uchar sent_ok,speed_change,start_up,start_end,address_true,i;
uint y1;
uint code add[100]={60006,62771,63693,64154,64430,64614,64746,64845,64922,64983,65033,65075,65111,65141,65167,65190,65211,65229,65245,65260,65273,65285,65296,65306,65315,65323,65331,65339,65345,65352,65358,65363,65368,65373,65378,65382,65387,65390,65394,65398,65401,65404,65407,65410,65413,65416,65418,65421,65423,65425,65428,65430,65432,65434,65435,65437,65439,65441,65442,65444,65445,65447,65448,65450,65451,65452,65453,65455,65456,65457,65458,65459,65460,65461,65462,65463,65464,65465,65466,65467,65468,65469,65469,65470,65471,65472,65472,65473,65474,65475,65475,65476,65477,65477,65478,65478,65479,65480,65480,65481};
sbit P2_0=P2^0; /*作输入步进电机的脉冲信号发送口*/
sbit P2_2=P2^2; /*作输入步进电机的旋转方向信号发送口*/
sbit P1_0=P1^0; /*作串口输出信号的使能口, P1_0=0时接通串口,输出信号*/
sbit WD=P1^7; /*看门狗*/
main()
{ P2_0=0;
P2_2=0; /*步进电机的旋转方向待试验后确定*/
P1_0=1; /*开机时需要关断,串口发送功能,需要时再接通*/
WD=1; /*看门狗先为1，电平翻转为喂狗*/
i=0;
common_count=0;
cmd_in_permit=0;
input_order=0;
interval=0;
address_true=1;
speed_change=0;
start_up=0;
start_end=0; sent_ok=0; //允许发送
EA=1; /*开放总中断*/
TMOD=0x21;
TH1 = 0xFD; // 波特率9600
TL1 = 0xFD;
SCON = 0xd0; // 设定串行口工作方式
PCON &= 0x00; // 波特率不倍增
SM2=1;
TR1 = 1;
ES=1; // 启动定时器1
T2MOD=00;
T2CON=0x00;
RCAP2H =0xEE; //赋T2的预置值0xA600,25MS，0xB800，20MS,0xCA00，15MS,0xDC00，10MS，0xEE00，5MS RCAP2L =0x00;
TR2=1; //启动定时器
ET2=1; //打开定时器2中断
do {
if(address_true==1)
{
address_true=0; check_addr();
}
if(start_up==1&&start_end==0) //第一次启动
{
y1=add[common_count];
T0high = (uchar)(y1>>8) ; /*取y1的高8位*/
T0low = (uchar)(y1&0x00ff); /*取y1的低8位*/
TR0 = 1; ET0=1; /*允许T/C0中断*/
start_end=1;
}
if(speed_change==1)
{
if(interval>=0&&interval<=0x63)
{
if(interval>common_count)
{
common_count=common_count+1;
}
if(interval<common_count)
{
common_count=common_count-1;
}
}
speed_change=0;
}
if(sent_ok==1)
{
sent_ok=0;
P1_0=0;
for(i=0;i<=20;i++) {_nop_();}
TI=0; SBUF=T0high;
while(TI==0);TI=0;
TI=0; SBUF=T0low;
while(TI==0);TI=0;
P1_0=1;
for(i=0;i<=20;i++) {_nop_();}
SM2=1;
}
}
while(1);
}
void timer0(void) interrupt 1 using 3
{
P2_0=~P2_0;
y1=add[common_count];
T0high = (uchar)(y1>>8); /*取y1的高8位*/
T0low = (uchar)(y1&0x00ff); /*取y1的低8位*/
TH0=T0high; /*高8位T0high送定时器0的TH0*/
TL0=T0low; /*低8位T0low送定时器0的TL0*/ }
void timer2(void) interrupt 5 using 2 {
TF2=0; /*T2溢出中断需软件清0*/
speed_change=1; //速度可以改变标示，以便主程序处理
WD=!WD; /*MAX813喂狗*/
}
void inte_SERIAL() interrupt 4 using 1 /*串口0中断服务子程序*/
{
uchar key_in key_in=0;
if(RI)
{
key_in=SBUF;
RI=0;
if (SM2==1)
{
if(key_in==slave_addr[2])
{
SM2=0;
address_true=1;
}
}
if ((SM2==0)&& (RB8==0))
{
if(key_in==0xff){SM2=1;
}
if(key_in==0xfe)
{ /*接收主机命令引导字节，准备接收主机命令*/
cmd_in_permit=1;
}
if(cmd_in_permit==1)
{ input_order=input_order+1; }
if (input_order==2) { /*接收主机命令，使从机开始调节电机*/
cmd_in_permit=0;
input_order=0; /*interval代表控制器发给电机的转速期望值*/
interval= key_in;
sent_ok=1;
if(start_up==0){start_up=1;
}
}
}
}
}
void check_addr(void)
{ /*地址核对成功，发送从机地址给主机*/
TB8=1;
RB8=0;
P1_0=0;
for(i=0;i<=25;i++) {_nop_();}
SBUF=slave_addr[2]; /*发送地址核对成功，发送从机地址给主机*/
do{} while(TI==0); TI=0;
P1_0=1;
for(i=0;i<=25;i++) {_nop_();}
TB8=0;
}
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