单片机AD转换代码
来源：华拓科技网
MODE EQU 082H;
CS0809 EQU 8000H;
PORTA EQU 9000H;
PORTB EQU 9001H;
PORTC EQU 9002H;
CADDR EQU 9003H;
ORG 0000H;
MOV DPTR,#CADDR;
MOV A,#MODE;
MOVX @DPTR,A;
MOV DPTR,#CS0809
MOV A,#05;
MOVX @DPTR,A
MOV A,#40H
DJNZ ACC,$;
MOV R7,#100;
DLY:
MOV DPTR,#PORTA;
MOVX @DPTR,A
DJNZ R7,DLY;
LJMP 0
END