noname2.asm

51串口发送AT通讯指令测试程序

   atok:
             mov  r7,#00
             mov  dptr,#at1
    loop1:
             mov  a,r7
             MOVC  A,@a+dptr
             mov sbuf,a
             jnb ti,$
	     clr ti
             inc r7
             cjne r7,#3,loop1
             
             at1:    db "AT",0DH