数控恒流源的设计与实现 - 图文(8)

LCD_EN=1; delay_ms(10); LCD_EN=0;

}

void lcd_init() {

LCD_RW=0; write_lcd_com(0x38); write_lcd_com(0x0c); write_lcd_com(0x06); write_lcd_com(0x80);

}

void lcd_write_num2(uchar add,uint num) {

uchar d1,d2; d1=num/10; d2=num;

write_lcd_com(0x80+add); lcd_DATE(0x30+d1); lcd_DATE(0x30+d2); }

void lcd_write_num4(uchar add,uint num) {

uchar d1,d2,d3,d4; d1=num/1000; d2=num00/100; d3=num000/10; d4=num;

write_lcd_com(0x80+add); lcd_DATE(0x30+d1); lcd_DATE(0x30+d2); lcd_DATE(0x30+d3);

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{

}

}

}

{

while(*s)

lcd_DATE(0x30+d4);

lcd_DATE(*s++);

附录B 总电原理图

write_lcd_com(0x80+add);

void Printf_string(uchar add,unsigned char *s)

单片机最小系统 31

附录C 印制电路板图

单片机最小系统PCB图 恒流模块电路图 32

012112345123122221111122223211221118221712326211118222723123145264565421131218121272363452415261453672272181811121122311232 恒流源模块电路PCB图 附录D 数控直流电流源实物图 33

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