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步进电机+1602显示C源代码
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步进电机 LCD1602显示.doc
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- /*此程序在SP-518USB开发板上测试过 laosong */
- /******************************步进电机的驱动*************************************
- 程序名称: 按键控制电机正反转,LCD1602显示正反转
- 说明:使用本程序你必须把 SE5设置为ON(2-3)短接
- ;FOSC = 12MHz
- ;---------------------------------------------------------------------------------
- ; 步进电机的驱动信号必须为脉冲信号!!! 转动的速度和脉冲的频率成正比!!!
- ; 本步进电机步进角为 5.625度 . 一圈 360 度 , 需要64个脉冲完成!!!
- ;---------------------------------------------------------------------------------
- ; A组线圈对应 P1.4
- ; B组线圈对应 P1.5
- ; C组线圈对应 P1.6
- ; D组线圈对应 P1.7
- ; 正转次序: AB组--BC组--CD组--DA组 (即一个脉冲,正转5.625度)
- ;----------------------------------------------------------------------------------
- **********************************************************************************/
- #include <reg51.h>
- #include <intrins.h>
- #define uint unsigned int
- #define uchar unsigned char
- sbit lcd_rs_port = P2^7; /*定义LCD控制端口*/
- sbit lcd_rw_port = P2^6; /*定义LCD控制端口*/
- sbit lcd_en_port = P2^5; /*定义LCD控制端口*/
- #define lcd_data_port P0 /*定义LCD控制端口*/
- #define motor P1 /*步进电机接口*/
- sbit P34 = P3^4; /*控制正转按键*/
- sbit P33 = P3^3; /*控制电机停止*/
- sbit P11 = P1^1; /*控制电机反转*/
- uchar code motor_table[][4]={{0x0f,0x0f,0x0f,0x0f},{0x3f,0x6f,0xcf,0x9f},{0x3f,0x9f,0xcf,0x6f}}; /*正反转表*/
- uchar code lcd_table1[] = {"Motor Direction "};
- uchar code lcd_table2[][16]={{" stop "},
- {" >>>>>>>> "},
- {" <<<<<<<< "}};
- void lcd_delay(uchar ms) /*LCD1602 延时*/
- {
- uchar j;
- while(ms--){
- for(j=0;j<250;j++)
- {;}
- }
- }
- void lcd_busy_wait() /*LCD1602 忙等待*/
- {
- lcd_rs_port = 0;
- lcd_rw_port = 1;
- lcd_en_port = 1;
- lcd_data_port = 0xff;
- while (lcd_data_port&0x80);
- lcd_en_port = 0;
- }
- void lcd_command_write(uchar command) /*LCD1602 命令字写入*/
- {
- lcd_busy_wait();
- lcd_rs_port = 0;
- lcd_rw_port = 0;
- lcd_en_port = 0;
- lcd_data_port = command;
- lcd_en_port = 1;
- lcd_en_port = 0;
- }
- void lcd_system_reset() /*LCD1602 初始化*/
- {
- lcd_delay(20);
- lcd_command_write(0x38);
- lcd_delay(100);
- lcd_command_write(0x38);
- lcd_delay(50);
- lcd_command_write(0x38);
- lcd_delay(10);
- lcd_command_write(0x08);
- lcd_command_write(0x01);
- lcd_command_write(0x06);
- lcd_command_write(0x0c);
- }
- void lcd_char_write(uchar x_pos,y_pos,lcd_dat) /*LCD1602 字符写入*/
- {
- x_pos &= 0x0f; /* X位置范围 0~15 */
- y_pos &= 0x01; /* Y位置范围 0~ 1 */
- if(y_pos==1) x_pos += 0x40;
- x_pos += 0x80;
- lcd_command_write(x_pos);
- lcd_busy_wait();
- lcd_rs_port = 1;
- lcd_rw_port = 0;
- lcd_en_port = 0;
- lcd_data_port = lcd_dat;
- lcd_en_port = 1;
- lcd_en_port = 0;
- }
- /*1MS为单位的延时程序*/
- void delay_1ms(uchar x)
- {
- uchar j;
- while(x--) { for(j=0;j<125;j++); }
- }
- void main()
- {
- uchar i;
- uchar yunzhuang=0; /*运转状况 0停止 1正转 2反转*/
- uchar count=0; /*电机转动步数*/
- motor = 0x0f; /*电机停止*/
- lcd_system_reset(); /*LCD1602 初始化*/
- for(i=0;i<16;i++) lcd_char_write(i,0,lcd_table1[i]);
- while(1){
- motor = motor_table[yunzhuang][count]; /*电机转动*/
- delay_1ms(5);
- count++; /*电机步数加1*/
- if(count>=4) count = 0; /*完成一圈转动*/
- for(i=0;i<16;i++) lcd_char_write(i,1,lcd_table2[yunzhuang][i]);
- if(P33==0){
- delay_1ms(1);
- if(P33==0){
- yunzhuang = 0;
- }
- }
- else if(P34==0){
- delay_1ms(5);
- if(P34==0){
- yunzhuang = 1;
- count = 0;
- }
- }
- else if(P11==0){
- delay_1ms(1);
- if(P11==0){
- yunzhuang = 2;
- }
- }
- }
- }
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