main.s

meg16 的所有功能实例

	.module main.c
	.area text(rom, con, rel)
	.dbfile E:\MYWORK~1\开发设计\EasyAVR\程序范例\Mega16程序包\完成整理\LED跑马灯实验\main.c
	.dbfunc e Delay_us _Delay_us fV
;           time -> R16,R17
	.even
_Delay_us::
	.dbline -1
	.dbline 43
; /****************************************Copyright (c)**************************************************
; **                               ADEmbed Development Co.,LTD.                                    
; **                                 http://www.adembed.com
; **--------------File Info-------------------------------------------------------------------------------
; ** File name:			main.c
; ** Last modified Date:  2008-12-13
; ** Last Version:		1.0
; ** Descriptions:		LED Test.
; ** 
; **------------------------------------------------------------------------------------------------------
; ** Created by:			junbolu
; ** Created date:		2008-12-13
; ** Version:				1.0
; ** Descriptions:		
; **
; **------------------------------------------------------------------------------------------------------
; ** Modified by:
; ** Modified date:
; ** Version:
; ** Descriptions:
; **
; **------------------------------------------------------------------------------------------------------
; **ICC-AVR application builder : 2008-12-13
; **Target : M16
; **Crystal: 7.3728Mhz
; **PA0~PA7口接8位LED指示灯的使能端(低电平使能)
; **
; **描述：8位LED指示灯点亮，并且让他们循环闪烁。
; **      学习单片机的简单程序，如果你才学习单片机，一定要好好掌握。
; **
; **涉及知识点：
; **          DO输出
; **          for 循环的应用
; **			软件延时函数的编写
; *******************************************************************************************************/
; 
; #include<iom16v.h>
; #include<macros.h>
; 
; unsigned char DISP_NUM;		//电亮的位数，一共8位
; 
; void Delay_us(unsigned int time)
; {
L2:
	.dbline 44
L3:
	.dbline 44
; while(time--);
	movw R2,R16
	subi R16,1
	sbci R17,0
	tst R2
	brne L2
	tst R3
	brne L2
X0:
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbsym r time 16 i
	.dbend
	.dbfunc e Delay_ms _Delay_ms fV
;           time -> R20,R21
	.even
_Delay_ms::
	xcall push_gset1
	movw R20,R16
	.dbline -1
	.dbline 48
; }
; 
; void Delay_ms(unsigned int time)
; {
	xjmp L7
L6:
	.dbline 50
	.dbline 51
	ldi R16,1000
	ldi R17,3
	xcall _Delay_us
	.dbline 52
L7:
	.dbline 49
; while(time--)
	movw R2,R20
	subi R20,1
	sbci R21,0
	tst R2
	brne L6
	tst R3
	brne L6
X1:
	.dbline -2
L5:
	xcall pop_gset1
	.dbline 0 ; func end
	ret
	.dbsym r time 20 i
	.dbend
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 56
; 	{
; 	Delay_us(1000);
; 	}
; }
; 
; void main(void)
; {
	.dbline 58
;  //初始化端口
;  DDRA=0XFF;	   		//设置PA端口为输出   	   						
	ldi R24,255
	out 0x1a,R24
	.dbline 59
;  PORTA=0XFF;		//设置PA端口为高电平
	out 0x1b,R24
	.dbline 62
;  
;  //开始演示
;  for(;;)
L10:
	.dbline 63
;  {
	.dbline 64
;  PORTA=0X00;		//全部点亮
	clr R2
	out 0x1b,R2
	.dbline 65
;  Delay_ms(200); 	//延时0.2s
	ldi R16,200
	ldi R17,0
	xcall _Delay_ms
	.dbline 66
;  PORTA=0XFF;		//全部熄灭
	ldi R24,255
	out 0x1b,R24
	.dbline 67
;  Delay_ms(200); 	//延时0.2s
	ldi R16,200
	ldi R17,0
	xcall _Delay_ms
	.dbline 68
;  PORTA=0X00;		//全部点亮
	clr R2
	out 0x1b,R2
	.dbline 69
;  Delay_ms(200); 	//延时0.2s
	ldi R16,200
	ldi R17,0
	xcall _Delay_ms
	.dbline 70
;  PORTA=0XFF;		//全部熄灭
	ldi R24,255
	out 0x1b,R24
	.dbline 71
;  Delay_ms(1000);	//延时1s
	ldi R16,1000
	ldi R17,3
	xcall _Delay_ms
	.dbline 73
;  
;  for(DISP_NUM=0;DISP_NUM<8;DISP_NUM++)	//循环熄灭
	clr R2
	sts _DISP_NUM,R2
	xjmp L17
L14:
	.dbline 74
	.dbline 75
	lds R17,_DISP_NUM
	ldi R16,1
	xcall lsl8
	mov R2,R16
	com R2
	out 0x1b,R2
	.dbline 76
	ldi R16,200
	ldi R17,0
	xcall _Delay_ms
	.dbline 77
L15:
	.dbline 73
	lds R24,_DISP_NUM
	subi R24,255    ; addi 1
	sts _DISP_NUM,R24
L17:
	.dbline 73
	lds R24,_DISP_NUM
	cpi R24,8
	brlo L14
	.dbline 78
	.dbline 62
	.dbline 62
	xjmp L10
X2:
	.dbline -2
L9:
	.dbline 0 ; func end
	ret
	.dbend
	.area bss(ram, con, rel)
	.dbfile E:\MYWORK~1\开发设计\EasyAVR\程序范例\Mega16程序包\完成整理\LED跑马灯实验\main.c
_DISP_NUM::
	.blkb 1
	.dbsym e DISP_NUM _DISP_NUM c