AVR单片机制作计算器

Proteus 中的模拟电路 C 语言程序 include include unsigned int put 0 x3f 0 x06 0 x5b 0 x4f 0 x66 0 x6d 0 x7d 0 x07 0 x7f 0 x6f unsigned int key unsigned int led 1 led 2 led 3 led 4 fuhao num num 1 interrupt EXT INT0 void ext int0 isr 按键中断 低电平触发 PORTD 4 0 PORTA 0 x01 if PINA 4 key 16 清零 if PINA 5 key 3 if PINA 6 key 2 if PINA 7 key 1 PORTA 0 x02 if PINA 4 key 15 等于 if PINA 5 key 6 if PINA 6 key 5 if PINA 7 key 4 PORTA 0 x04 if PINA 4 key 0 if PINA 5 key 9 if PINA 6 key 8 if PINA 7 key 7 PORTA 0 x08 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 0 x0f void xianshi 数码管显示 函数 while PIND 1 PORTB 0 x0e PORTC put led 1 delay ms 1 PORTB 0 x0f PORTB 0 x0d PORTC put led 2 delay ms 1 PORTB 0 x0f PORTB 0 x0b PORTC put led 3 delay ms 1 PORTB 0 x0f PORTB 0 x07 PORTC put led 4 delay ms 1 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 main void 主函数 DDRB 0 x0f DDRC 0 xff DDRD 0 xf0 DDRA 0 x0f GICR 0 x40 MCUCR 0 x02 MCUCSR 0 x00 GIFR 0 x40 asm sei while 1 PORTA 0 x0f if key 10 led 1 0 led 2 0 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 num num 10 led 2 num 10 num num 10 led 3 num 1