基于18B20的单片机课程设计报告(含汇编程序)(14)

基于18b20的电子温度计课程设计,可用两位小数显示开式,华氏,摄氏温标,三个按键。可设置上限,下限报警。程序均经过上电调试。(不含硬件图,仅供参考。)

MOV A,INTEG MOV B,#100 DIV AB MOV 58H,A

MOVC A,@A+DPTR MOV SEG_I3,A MOV A,B MOV B,#10 DIV AB MOV 59H,A MOVC A,@A+DPTR MOV SEG_I2,A MOV A,B MOV 5AH,A MOVC A,@A+DPTR ORL A,#80H MOV SEG_I1,A

MOV A,DECIM MOV B,#12 MUL AB PUSH ACC MOV A,DECIM CLR C RRC A MOV R3,A POP ACC ADD A,R3

MOV B,#2 DIV AB PUSH ACC MOV A,B

CJNE A,#01H,SW1 POP ACC AJMP ACT SW1: POP ACC INC A ACT: MOV B,#10 DIV AB MOV 5BH,A

MOVC A,@A+DPTR MOV SEG_D1,A MOV A,B