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#include "macro.h"
uchar buf_Direction; //設(shè)定步進(jìn)電機(jī)的轉(zhuǎn)向
uint set_speed; //設(shè)定步進(jìn)電機(jī)的轉(zhuǎn)速
uchar step_motor_loop[8]={0x01,0x03,0x02,0x06,0x04,0x0C,0x08,0x09};
uchar step_index;
#define CST_STEP_MOTOR_Z 10 //正轉(zhuǎn)
#define CST_STEP_MOTOR_F 20 //反轉(zhuǎn)
#define CST_STEP_MOTOR_ST 0 //停
#define fosc_12MHz 12
#define fosc_24MHz 24
#define fosc_setting fosc_12MHz
//工作方式1
#define CST_TIME_MS 1000
#define CST_TH0 (65536-CST_TIME_MS*fosc_setting/fosc_12MHz)/256
#define CST_TL0 (65536-CST_TIME_MS*fosc_setting/fosc_12MHz)%256
uchar buf_SpeedString[]=" ";
void iniLCD(void);
void list_write_HZ_Str( int x1,int y1, uchar *point ) ;
void step_motor_driver(void)
{
static uint speed_delay=0;
speed_delay++;
if( buf_Direction==CST_STEP_MOTOR_Z)
{
P0=step_motor_loop[step_index];
if(speed_delay >=set_speed )
{
speed_delay =0;
step_index--;
if(step_index <=0)
step_index =7;
}
}
else if( buf_Direction==CST_STEP_MOTOR_F)
{
P0=step_motor_loop[step_index];
if(speed_delay >=set_speed)
{
speed_delay =0;
step_index++; //大于7，從頭再來
if(step_index >7)
step_index =0;
}
}
else
{
speed_delay =0;
P0=0x00;
}
}
void caluate(void)
{
uchar temp=0;
uint u16Temp=0;
u16Temp=(100-set_speed)*100/85;
buf_SpeedString[0]='0'+(u16Temp/100);
buf_SpeedString[1]='0'+(u16Temp%100/10);
buf_SpeedString[2]='0'+(u16Temp%100%10);
buf_SpeedString[3]='%';
list_write_HZ_Str(6,60,&buf_SpeedString);
}
//*********************************************************
//******************按鍵處理程序****************************
//************************************************************
void key_Scan (void)
{
static uchar key_loose=0;
uchar temp=0;
P1=0XFF;
temp=P1&0xFF;
if(key_loose >0)
{
if(temp==0xFF)
key_loose=0;
return;
}
else if(temp !=0xFF)
{
key_loose=10;
temp=P1&0xFF;
switch(temp)
{
case 0xFE:
buf_Direction=CST_STEP_MOTOR_Z;
list_write_HZ_Str(6,20,"順向");
caluate();
break;
case 0xFD:
buf_Direction=CST_STEP_MOTOR_F;
list_write_HZ_Str(6,20,"逆向");
caluate();
break;
case 0xFB:
buf_Direction=CST_STEP_MOTOR_ST;
list_write_HZ_Str(6,20,"停止");
list_write_HZ_Str(6,60," ");
break;
case 0xEF:
if(buf_Direction !=CST_STEP_MOTOR_ST)
{
if(set_speed <80)
set_speed +=2;; //減速
caluate();
}
break;
case 0xF7:
if(buf_Direction !=CST_STEP_MOTOR_ST)
{
if(set_speed >14)
set_speed -=2; //加速
caluate();
}
break;
default:
break; //其它值返回
}
}
}
void isr_timer0 (void) interrupt 1 using 1
{
TH0=CST_TH0;
TL0=CST_TL0;
step_motor_driver();
}
void init_timer0(void)
{
TCON=0x00;
TMOD=0x00;
TL0=0x00;
TH0=0x00;
TCON=0x00;
// Timer 0 C/T=0,定時工作方式
//Timer 0 M1,M0=0,1 .work mode 1 www.gdzs.si.gov.cn
TMOD=0x01; //GATE=0,以運(yùn)行控制位TR0 啟動定時器0 C/T=0,定時工作方式
TH0=CST_TH0;
TL0=CST_TL0;
TF0=0;//clear 0. count over flag.
TR0=1;// enable TIMER0 ,start count
ET0=1; //enable accept interrupt
}
//***********************主***控****程********序********************
void main(void)
{
P2=0xff;
P1=0xff;
P0=0Xff;
init_timer0();
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