运动控制编程参考 通过51单片机控制运动控制芯片的SPI通信程序示例。 #include <intrins.h> #include <reg52.h> //MCU: stc8f2k08s2 sfr P0M1 = 0x93; sfr P0M0 = 0x94; sfr P1M1 = 0x91; sfr P1M0 = 0x92; sfr P2M1 = 0x95; sfr P2M0 = 0x96; sfr P3M1 = 0xb1; sfr P3M0 = 0xb2; sfr P4M1 = 0xb3; sfr P4M0 = 0xb4; sfr P5M1 = 0xC9; sfr P5M0 = 0xCA; sfr P6M1 = 0xCB; sfr P6M0 = 0xCC; sfr P7M1 = 0xE1; sfr P7M0 = 0xE2; sfr P5 = 0xC8; sfr SPSTAT = 0xcd; sfr SPCTL = 0xce; sfr SPDAT = 0xcf; sfr IE2 = 0xaf; sfr AUXR = 0x8e; sfr T2H = 0xd6; sfr T2L = 0xd7; sfr P_SW2 = 0xba; #define CKSEL (*(unsigned char volatile xdata *)0xfe00) #define CKDIV (*(unsigned char volatile xdata*)0xfe01) #define IRC24MCR (*(unsigned char volatile xdata*)0xfe02) #define XOSCCR (*(unsigned char volatile xdata*)0xfe03) #define IRC32KCR (*(unsigned char volatile xdata*)0xfe04) //#define FOSC 16000000UL //使用外部16M晶振 #define FOSC 24000000UL //使用内部24M晶振 #define BRT (65536 - FOSC / 115200 / 4) //定义115200波特率 sbit b2 = P1^1; sbit b1 = P5^5; sbit led = P3^5; sbit cs3 = P3^3; sbit cs2 = P3^2; sbit cs1 = P1^2; sbit sck = P1^5; sbit in = P1^4; sbit out = P1^3; #define SPI3_CSHIGH cs3=1 // CS3 #define SPI3_CSLOW cs3=0 #define SPI2_CSHIGH cs2=1 // CS2 #define SPI2_CSLOW cs2=0 #define SPI1_CSHIGH cs1=1 // CS1 #define SPI1_CSLOW cs1=0 #define SPI_SCKHIGH sck=1 //SCK #define SPI_SCKLOW sck=0 #define SPI_OUTHIGH out=1 #define SPI_OUTLOW out=0//MOSI #define SPI_IN in//MISO unsigned char inbuf[50]; unsigned char b1_state=0; voidinitial() { P1M1= 0; P1M0= 0x2c; // 引脚模拟通信时,MOSI,SCK, CS 设为推挽输出 SPI1_CSHIGH; //CS不使用时设为高 SPI2_CSHIGH; SPI3_CSHIGH; SPI_SCKLOW;//SCK空闲状态一定要为低电平。 //SPCTL = 0xd0; //使能SPI主机模式 //SPSTAT = 0xc0; //清中断标志 } void init_uart() { SCON = 0x50; T2L = BRT; T2H = BRT >> 8; AUXR = 0x15; } /* 串口发送一个字节。 */ voidUSART_Txbyte(unsigned char i) { SBUF = i; while(TI ==0); TI = 0; } /* 串口发送一串数据。 */ void USRAT_transmit(unsigned char*fdata,unsigned char len) { unsigned char i; for(i=0;i<len;i++) { USART_Txbyte(fdata); } } voiddelay_nus(unsigned long n) { unsigned long j; while(n--) { j=1; while(j--); } } //延时n ms void delay_nms(unsigned long n) { while(n--) delay_nus(1000); } /* 函数名: SPI_SendData 功能:软件模拟SPI通讯发送并接收一个8位字节数据。 如需使用硬件SPI,单片机作为主机,运动控制芯片为从机。CPHA=0,CPOL=0,高位在前,SPI数据宽度为8位。 空闲状态下单片机SCK引脚必须为低电平。每一条指令开始发送前将CS引脚置低,整条指令发送完成后必须将CS置高。 每条指令间需有时间间隔,推荐延时1MS以上。 */ unsigned char SPI_SendData(unsigned charoutdata) { unsigned char RecevieData=0,i; SPI_SCKLOW; // _nop_();_nop_(); _nop_();_nop_(); _nop_();_nop_();_nop_(); _nop_(); _nop_(); _nop_();_nop_(); _nop_(); _nop_(); _nop_(); _nop_(); for(i=0;i<8;i++) { SPI_SCKLOW; _nop_(); _nop_(); _nop_();_nop_(); _nop_();_nop_(); _nop_(); _nop_(); _nop_();_nop_();_nop_(); _nop_(); _nop_(); _nop_(); _nop_(); if(outdata&0x80) { SPI_OUTHIGH; } else { SPI_OUTLOW; } outdata<<=1; _nop_(); _nop_(); _nop_();_nop_(); _nop_();_nop_(); _nop_(); _nop_(); _nop_();_nop_();_nop_(); _nop_(); _nop_(); _nop_(); _nop_(); SPI_SCKHIGH; // RecevieData <<= 1; if(SPI_IN) { RecevieData |= 1; } _nop_(); _nop_(); _nop_();_nop_(); _nop_();_nop_(); _nop_(); _nop_(); _nop_();_nop_();_nop_(); _nop_(); _nop_(); _nop_(); _nop_(); SPI_SCKLOW; } return RecevieData; } /* unsigned char SPI_SendData(unsigned charoutdata) { unsigned char RecevieData=0,i; SPDAT = outdata; //发送数据 while (!(SPSTAT & 0x80)); //查询完成标志 SPSTAT = 0xc0; //清中断标志 return SPDAT; } */ /* 函数名: enabled_cs 功能:SPI运动控制模块使能对应芯片模块的CS脚 参数: cardno 卡号 用单片机不同引脚去控制不同芯片的CS脚,以便多个芯片模块关联使用。 */ void enabled_cs(unsigned char cardno) { if(cardno==1) { SPI1_CSLOW; } if(cardno==2) { SPI2_CSLOW; } if(cardno==3) { SPI3_CSLOW; } } /* 函数名: disabled_cs 功能:SPI运动控制模块禁止对应芯片模块的CS脚 参数: cardno 卡号 用单片机不同引脚去控制不同芯片的CS脚,以便多个芯片关联使用。 */ void disabled_cs(unsigned char cardno) { if(cardno==1) { SPI1_CSHIGH; } if(cardno==2) { SPI2_CSHIGH; } if(cardno==3) { SPI3_CSHIGH; } } /* 函数名: set_speed 功能:设置轴速度 参数: cardno 卡号 axis 轴号(1,2,3,4) acc 加减速: 值(Hz/s2) speed 运行频率为:值(Hz) */ void set_speed(unsigned char cardno,unsigned char axis ,unsigned long acc ,unsigned long speed ) { unsigned char OutByte[25]; OutByte[0] = 1; OutByte[1] = 0; OutByte[2] = axis; OutByte[3] = acc >>24; OutByte[4] = acc >>16; OutByte[5] = acc >>8; OutByte[6] = acc ; OutByte[7] = speed >>24; OutByte[8] = speed >>16; OutByte[9] = speed >>8; OutByte[10] = speed ; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); SPI_SendData(OutByte[3]); SPI_SendData(OutByte[4]); SPI_SendData(OutByte[5]); SPI_SendData(OutByte[6]); SPI_SendData(OutByte[7]); SPI_SendData(OutByte[8]); SPI_SendData(OutByte[9]); SPI_SendData(OutByte[10]); disabled_cs(cardno); delay_nms(1); } /* 函数名: set_command_pos 功能: 设置轴逻辑位置 参数: cardno 卡号 axis 轴号(1,2,3,4) pulse 位置脉冲数,范围(-268435455~+268435455) */ void set_command_pos(unsigned char cardno,unsigned char axis, long value ) { unsigned char OutByte[25]; OutByte[0] = 0x12 ; OutByte[1] = 0 ; OutByte[2] = axis ; OutByte[3] = value >>24; OutByte[4] = value >>16; OutByte[5] = value >>8; OutByte[6] = value ; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); SPI_SendData(OutByte[3]); SPI_SendData(OutByte[4]); SPI_SendData(OutByte[5]); SPI_SendData(OutByte[6]); disabled_cs(cardno); delay_nms(1); } /* 函数名: sudden_stop 功能: 轴立即停止 参数: cardno 卡号 axis 停止的轴号(1,2,3,4) mode 0:急停并清空后面缓存的指令 2:急停不清后面缓存的指令 */ void sudden_stop(unsigned char cardno,unsigned char axis ,unsigned char mode) { unsigned char OutByte[25]; OutByte[0] = 0x17 ; OutByte[1] = axis ; OutByte[2] = mode; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); disabled_cs(cardno); delay_nms(1); } /* 函数名: set_special 功能:设置特别功能 参数: cardno 卡号 value 0xfc 缓存插补运动暂停 0xfd 取消缓存插补暂停 */ void set_special(unsigned charcardno,unsigned char value) { unsigned char OutByte[25]; OutByte[0] = 0xFA ; OutByte[1] = 0; OutByte[2] = value; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); disabled_cs(cardno); delay_nms(1); } /* 函数名: get_inp_state 功能: 获取轴状态,缓存剩余量,各轴逻辑位置。 参数: cardno 卡号 amount 获取字节数量。 设为20将取全部数据。 inbuf[] 读取的数据存放的数组 */ void get_inp_state( unsigned char cardno, unsigned char amount,unsigned charinbuf[]) { unsigned char OutByte[25]; char i; enabled_cs(cardno); inbuf[0]=SPI_SendData(0x04); for(i=1;i<amount;i++) { inbuf=SPI_SendData(0); } disabled_cs(cardno); delay_nms(1); } /* 函数名: go_home 功能:回原点,回到原点开关会自动减速停止,随后离开原点开关自动急停 参数: cardno 卡号 no 轴号 speed1 进入原点速度,运行频率为:值(Hz) speed2 离开原点速度,运行频率为:值(Hz) */ void go_home(unsigned char cardno,unsignedchar no , long speed1 ,long speed2 ) { unsigned char OutByte[25]; OutByte[0] = 0x1a; OutByte[1] = 0; OutByte[2] = no; OutByte[3] = speed1>>24; OutByte[4] = speed1 >>16; OutByte[5] = speed1>> 8; OutByte[6] = speed1; OutByte[7] = speed2 >>24; OutByte[8] = speed2 >>16; OutByte[9] = speed2 >>8; OutByte[10] = speed2 ; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); SPI_SendData(OutByte[3]); SPI_SendData(OutByte[4]); SPI_SendData(OutByte[5]); SPI_SendData(OutByte[6]); SPI_SendData(OutByte[7]); SPI_SendData(OutByte[8]); SPI_SendData(OutByte[9]); SPI_SendData(OutByte[10]); disabled_cs(cardno); delay_nms(1); } /* 函数名: inp_move4 功能:四轴直线插补 参数: cardno 卡号 no1 X轴轴号 no2 Y轴轴号 no3 Z轴轴号 no4 E轴轴号 pulse1,pulse2,pulse3,pulse4 X-Y-Z-E轴移动的距离,范围(-8388608~+8388607) mode 0:绝对位移 1:相对位移 */ void inp_move4(unsigned char cardno,unsignedchar no1 ,unsigned char no2 ,unsigned char no3 ,unsigned char no4, longpulse1 ,long pulse2 ,long pulse3 ,longpulse4 ,unsigned char mode ) { unsigned char OutByte[25]; OutByte[0] = 0xa; OutByte[1] = no1; OutByte[2] = no2; OutByte[3] = no3; OutByte[4] = no4; OutByte[5] = pulse1>>24; OutByte[6] = pulse1 >>16; OutByte[7] = pulse1>> 8; OutByte[8] = pulse1; OutByte[9] = pulse2 >>24; OutByte[10] = pulse2 >>16; OutByte[11] = pulse2 >>8; OutByte[12] = pulse2 ; OutByte[13] = pulse3 >>24; OutByte[14] = pulse3 >>16; OutByte[15] = pulse3 >>8; OutByte[16] = pulse3 ; OutByte[17] = pulse4 >>24; OutByte[18] = pulse4 >>16; OutByte[19] = pulse4 >>8; OutByte[20] = pulse4 ; OutByte[21] = 0 ; OutByte[22] = mode; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); SPI_SendData(OutByte[3]); SPI_SendData(OutByte[4]); SPI_SendData(OutByte[5]); SPI_SendData(OutByte[6]); SPI_SendData(OutByte[7]); SPI_SendData(OutByte[8]); SPI_SendData(OutByte[9]); SPI_SendData(OutByte[10]); SPI_SendData(OutByte[11]); SPI_SendData(OutByte[12]); SPI_SendData(OutByte[13]); SPI_SendData(OutByte[14]); SPI_SendData(OutByte[15]); SPI_SendData(OutByte[16]); SPI_SendData(OutByte[17]); SPI_SendData(OutByte[18]); SPI_SendData(OutByte[19]); SPI_SendData(OutByte[20]); SPI_SendData(OutByte[21]); SPI_SendData(OutByte[22]); disabled_cs(cardno); delay_nms(1); } /* 函数名: inp_arc 功能:二轴圆弧插补 参数: cardno 卡号 no1 参与插补X轴的轴号 no2 参与插补Y轴的轴号 x,y 圆弧插补的终点位置(相对于起点),范围(-8388608~+8388607) i,j 圆弧插补的圆心点位置(相对于起点),范围(-8388608~+8388607) mode1 0:逆时针插补 1:顺时针插补 mode2 0:绝对位移 1:相对位移 */ void inp_arc(unsigned char cardno ,unsignedchar no1,unsigned char no2, long x , long y, long i, long j,unsigned charmode1,unsigned char mode2 ) { unsigned char OutByte[25]; OutByte[0] = 0xc; OutByte[1] = no1; OutByte[2] = no2; OutByte[3] = x >>24; OutByte[4] = x >>16; OutByte[5] = x >>8; OutByte[6] = x ; OutByte[7] = y >>24; OutByte[8] = y >>16; OutByte[9] = y >>8; OutByte[10] = y ; OutByte[11] = i >>24; OutByte[12] = i >>16; OutByte[13] = i >>8; OutByte[14] = i ; OutByte[15] = j >>24; OutByte[16] = j >>16; OutByte[17] = j >>8; OutByte[18] = j ; OutByte[19] = mode1; OutByte[20] = mode2; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); SPI_SendData(OutByte[3]); SPI_SendData(OutByte[4]); SPI_SendData(OutByte[5]); SPI_SendData(OutByte[6]); SPI_SendData(OutByte[7]); SPI_SendData(OutByte[8]); SPI_SendData(OutByte[9]); SPI_SendData(OutByte[10]); SPI_SendData(OutByte[11]); SPI_SendData(OutByte[12]); SPI_SendData(OutByte[13]); SPI_SendData(OutByte[14]); SPI_SendData(OutByte[15]); SPI_SendData(OutByte[16]); SPI_SendData(OutByte[17]); SPI_SendData(OutByte[18]); SPI_SendData(OutByte[19]); SPI_SendData(OutByte[20]); disabled_cs(cardno); delay_nms(100); } /* 函数名: inp_helical 功能:圆弧螺旋插补 参数: cardno 卡号 no1 参与插补X轴的轴号 no2 参与插补Y轴的轴号 no3 参与插补螺旋轴的轴号 x,y 圆弧插补的终点位置(相对于起点),范围(-8388608~+8388607) z 参与插补螺旋轴的位置(相对于起点) i,j 圆弧插补的圆心点位置(相对于起点),范围(-8388608~+8388607) mode1 0:逆时针插补 1:顺时针插补 mode2 0:绝对位移 1:相对位移 */ void inp_helical(unsigned char cardno,unsigned char no1,unsigned char no2,unsigned char no3,long x , long y,long z,long i, long j,unsigned char mode1,unsigned char mode2 ) { unsigned char OutByte[30]; OutByte[0] = 0xd; OutByte[1] = no1; OutByte[2] = no2; OutByte[3] = no3; OutByte[4] = x >>24; OutByte[5] = x >>16; OutByte[6] = x >>8; OutByte[7] = x ; OutByte[8] = y >>24; OutByte[9] = y >>16; OutByte[10] = y >>8; OutByte[11] = y ; OutByte[12] = z >>24; OutByte[13] = z >>16; OutByte[14] = z >>8; OutByte[15] = z ; OutByte[16] = i >>24; OutByte[17] = i >>16; OutByte[18] = i >>8; OutByte[19] = i ; OutByte[20] = j >>24; OutByte[21] = j >>16; OutByte[22] = j >>8; OutByte[23] = j ; OutByte[24] = mode1; OutByte[25] = mode2; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); SPI_SendData(OutByte[3]); SPI_SendData(OutByte[4]); SPI_SendData(OutByte[5]); SPI_SendData(OutByte[6]); SPI_SendData(OutByte[7]); SPI_SendData(OutByte[8]); SPI_SendData(OutByte[9]); SPI_SendData(OutByte[10]); SPI_SendData(OutByte[11]); SPI_SendData(OutByte[12]); SPI_SendData(OutByte[13]); SPI_SendData(OutByte[14]); SPI_SendData(OutByte[15]); SPI_SendData(OutByte[16]); SPI_SendData(OutByte[17]); SPI_SendData(OutByte[18]); SPI_SendData(OutByte[19]); SPI_SendData(OutByte[20]); SPI_SendData(OutByte[21]); SPI_SendData(OutByte[22]); SPI_SendData(OutByte[23]); SPI_SendData(OutByte[24]); SPI_SendData(OutByte[25]); disabled_cs(cardno); delay_nms(1); } /* 函数名: write_bit 功能:写输出口状态 参数: cardno 卡号 number 端口号(0-6) Y0-Y6 value 状态(0,1) 0 输出低电平 1 输出高电平 */ void write_bit(unsigned char cardno ,unsigned char number, unsigned char value) { unsigned char OutByte[25]; OutByte[0] = 0x03 ; OutByte[1] = number; OutByte[2] = value; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); disabled_cs(cardno); delay_nms(1); } /* 函数名: wait_delay 功能:等待延时数 参数: cardno 卡号 value 延时量(1-10000)MS */ void wait_delay(unsigned char cardno,unsigned int value) { unsigned char OutByte[25]; OutByte[0] = 0x0e ; OutByte[1] = value>>8; OutByte[2] = value; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); disabled_cs(cardno); delay_nms(1); } /* 函数名: pmove 功能: e版本单轴运行 参数: cardno 卡号 axis 轴号 mode 0:绝对位移 1:相对位移 pulse1 X轴移动的距离,范围(-8388608~+8388607) */ void pmove(unsigned char cardno,unsignedchar axis,unsigned char mode, long pulse1 ) { unsigned char OutByte[25]; OutByte[0] = 0x2; OutByte[1] = axis ; OutByte[2] = mode; OutByte[3] = pulse1>>24; OutByte[4] = pulse1 >>16; OutByte[5] = pulse1>>8; OutByte[6] = pulse1; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); SPI_SendData(OutByte[2]); SPI_SendData(OutByte[3]); SPI_SendData(OutByte[4]); SPI_SendData(OutByte[5]); SPI_SendData(OutByte[6]); disabled_cs(cardno); delay_nms(1); } /* 函数名: wait_stop 功能: e版本等待轴停止 参数: cardno 卡号 axis 停止的轴号(1,2,3,4) mode 0:急停并清空后面缓存的指令 2:急停不清后面缓存的指令 */ void wait_stop(unsigned char cardno ,unsignedchar axis) { unsigned char OutByte[25]; OutByte[0] = 0xf ; OutByte[1] = axis ; enabled_cs(cardno); SPI_SendData(OutByte[0]); SPI_SendData(OutByte[1]); disabled_cs(cardno); delay_nms(1); } void main(void) { initial(); init_uart(); //ES = 1; //EA = 1; //P_SW2 = 0x80; //XOSCCR = 0xc0; //启动外部晶振 //while (!(XOSCCR & 1)); //等待时钟稳定 //CKDIV = 0x00; //时钟不分频 //CKSEL = 0x01; //选择外部晶振 //P_SW2 = 0x00; led=0; delay_nms(100) ; /*下面的指令为1,2轴回原点 go_home(1,1,30000,5000 ) ; // 1轴回原点 go_home(1,2,30000,5000 ) ; // 2轴回原点 do { get_inp_state( 1, 4,inbuf); //只需读出4个字节来判断轴状态 } while(inbuf[3]); // 等待缓存数量为0 ,如果多条运动指令在缓存里 ,可以读取缓存数量来判断指令有没执行完成。 //while(inbuf[1]); // 等待轴停止,如果只有一条除圆弧外的运动指令,可以读取轴状态来判断有没执行完。 set_command_pos(1,1,0); //设1轴坐标 set_command_pos(1,2,0); //设2轴坐标 */ while(1) { if(!b1) //按下按键 { delay_nms(10); if(!b1) { /*e型测试指令*/ // set_speed(1 ,1,200000,50000); //设置1轴运行速度50K,加速度200k // set_speed(1 ,2,200000,50000); //设置1轴运行速度50K,加速度200k // set_speed(1 ,3,40000,10000); //设置1轴运行速度10K,加速度40k //write_bit(1 , 6, 0); // Y6输出低 // pmove(1,1,1, 1000); //1轴相对运行速1000个脉冲 // pmove(1,2,1, 1000); // 2轴相对运行速1000个脉冲 //wait_stop(1 ,1); //等待1轴停止 //wait_stop(1 ,2); //等待2轴停止 // wait_delay(1 ,500); // 延时500MS // pmove(1,3,1, 1000); //3轴相对运行速1000个脉冲 //write_bit(1 , 6, 1); // Y6输出高 /*f型测试指令*/ // write_bit(1 , 6, 0); // set_speed(1 ,1,200000,50000); //设置运行速度50K,加速度200h // wait_delay(1 ,500); // 延时500MS // write_bit(1, 2, 0); // inp_move4(1,1,0,0,0,80000 ,0,0 ,0 ,1); // 1,2轴插补 // set_speed(1,1 ,800000,25000); //设置运行速度25K,加速度800K //inp_move4(1,1,2,0,0,20000 ,10000,0 ,0,1); // 1,2轴插补 // inp_arc(1 ,1,2, -20000, 20000, -20000, 0,0,1); // 1,2轴圆弧插补 //set_speed(1,1,800000,25000); //设置运行速度250K,加速度800K // inp_arc(1 ,1,2, -20000, 20000, -20000,0,0,1) ; // wait_delay(1 ,500); // write_bit(1, 6, 1); // wait_delay(1 ,500); // write_bit(1 , 6, 0); /*下面的指令会直接发到缓存区自动排队运行*/ // write_bit(1 , 6, 0); // Y6输出低 // set_speed(1,1,40000,25000); //inp_move4(1,1,2,3,4,320000 ,32000,32000 ,32000 ,1); // 4轴直线插补 //wait_delay(1 ,2000); //模块内部指令间延时3S //inp_move4(1,1,2,0,0,32000 ,32000,0 ,0,1); // 1,2轴直线插补 // wait_delay(1 ,2000); // inp_move4(1,2,0,0,0,32000 ,0,0 ,0 ,1); // 2轴单独运行 //inp_arc(1 ,1,2, -20000, 20000, -20000, 0,0,1) ; // 2轴圆弧插补,终点相对起点坐标(-20000,20000),圆心相对起点坐标(-20000,0),逆时针方向,画出1/4圆弧。 // write_bit(1, 6, 1); // Y6输出高 ,判断指令段有没执行完成也可以在指令段后面加一条端口输出指令,然后用单片机来读引脚来判断。 while(!b1); } } if(!b2) //按下按键 { delay_nms(10) ; if(!b2) { sudden_stop(1,1,0); // f型立即停止所有插补轴,并清缓存 。 e型立即停止1轴 ,并清缓存 。 while(!b2); } } get_inp_state( 1, 20,inbuf); //读出20个字节数据放入数组 //USRAT_transmit(inbuf,20); // 串口将数组数据发送出去查看 ////USART_Txbyte(inbuf[3]); if(inbuf[3]==0) //inbuf[1]数据为0表示所有轴都停 led=1; else led=0; // 指示LED点亮 } }
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