serial_tr.asm

来自「serial communication with 89c51」· 汇编 代码 · 共 29 行

	org 0000h
	sjmp main

	org 0030h

main:	mov tmod,#20h
	mov th1,#0fah
	mov scon,#50h
	setb tr1

again1:	mov dptr,#sdata
	
	again:	
		clr a
		movc a,@a+dptr
		acall send
		sjmp again
	send:  	mov sbuf,a
	here:  	jnb ti,here
	 	clr ti
		inc dptr
		cjne a,#00h,again
		sjmp again1 
		ret	
		
		sdata: 	db "Welcome to the world of Microcontroller"
			db "This is program for serial transmission from Microcontroller to PC"
		end