AVR单片机制作计算器

1、avr单片机制作计算器 包括proteus模拟电路图c语言程序 proteus中的模拟电路： c语言程序： #includemega32.h #includedelay.h unsigned int put = 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f; unsigned int key; unsigned int led_1,led_2,led_3,led_4,fuhao,num,num_1; interrupt ext_int0void ext_int0_isr() /按键中断 低电平触发 portd.4=0; porta = 0x

2、01; if(pina.4) key = 16; / 清零 if(pina.5) key = 3; if(pina.6) key = 2; if(pina.7) key = 1; porta = 0x02; if(pina.4) key = 15; / 等于 包括proteus模拟电路图c语言程序 if(pina.5) key = 6; if(pina.6) key = 5; if(pina.7) key = 4; porta = 0x04; if(pina.4) key = 0; if(pina.5) key = 9; if(pina.6) key = 8; if(pina.7) key =

3、 7; porta = 0x08; if(pina.4) key = 14; /除法 if(pina.5) key = 13; /乘法 if(pina.6) key = 12; /减法 if(pina.7) key = 11; /加法 delay_ms(20); porta = 0x0f; void xianshi() /数码管显示 函数 while(pind.1) portb = 0x0e; portc = putled_1; delay_ms(1); portb = 0x0f; portb = 0x0d; portc = putled_2; delay_ms(1); portb = 0x0

4、f; portb = 0x0b; portc = putled_3; delay_ms(1); portb = 0x0f; portb = 0x07; portc = putled_4; delay_ms(1); 包括proteus模拟电路图c语言程序 void jisuan() /加减乘除计算函数 switch(fuhao) case 11 : num=num_1+num; break; case 12 : num=num_1-num; break; case 13 : num=num_1*num; break; case 14 : num=num_1/num; break; void ma

5、in(void) /主函数 ddrb=0x0f; ddrc=0xff; ddrd=0xf0; ddra=0x0f; gicr|=0x40; mcucr = 0x02; mcucsr = 0x00; gifr = 0x40; #asm(sei) while(1) porta = 0x0f; if(key 10) num=num*10+key; led_4 = led_3; led_3 = led_2; led_2 = led_1; led_1 = key; xianshi(); portd.4=1; if(key 10) led_1=0; led_2=0; 包括proteus模拟电路图c语言程序

6、 led_3=0; led_4=0; if(key!=15) num_1=num; num=0; if(key=11) fuhao=11; xianshi(); portd.4=1; if(key=12) fuhao=12; xianshi(); portd.4=1; if(key=13) fuhao=13; xianshi(); portd.4=1; if(key=14) fuhao=14; xianshi(); portd.4=1; if(key=16) num_1=0; num=0; xianshi(); portd.4=1; if(key=15) jisuan(); led_1 = num%10; 包括proteus模拟电路图c语言程序 num = num/10; led_2 = num%10; num = num/10; led_3 = num%