01led.lst

用AVR单片机做的一些程序,包括跑马灯显示,PWM产生,ADC转换等

__start:
__text_start:
    0046 EFCF      LDI	R28,0xFF
    0047 E1D0      LDI	R29,0x10
    0048 BFCD      OUT	0x3D,R28
    0049 BFDE      OUT	0x3E,R29
    004A 51C0      SUBI	R28,0x10
    004B 40D0      SBCI	R29,0
    004C EA0A      LDI	R16,0xAA
    004D 8308      STD	Y+0,R16
    004E 2400      CLR	R0
    004F E0E0      LDI	R30,0
    0050 E0F1      LDI	R31,1
    0051 E011      LDI	R17,1
    0052 30E0      CPI	R30,0
    0053 07F1      CPC	R31,R17
    0054 F011      BEQ	0x0057
    0055 9201      ST	R0,Z+
    0056 CFFB      RJMP	0x0052
    0057 8300      STD	Z+0,R16
    0058 E8EC      LDI	R30,0x8C
    0059 E0F0      LDI	R31,0
    005A E0A0      LDI	R26,0
    005B E0B1      LDI	R27,1
    005C E010      LDI	R17,0
    005D 38EC      CPI	R30,0x8C
    005E 07F1      CPC	R31,R17
    005F F021      BEQ	0x0064
    0060 95C8      LPM
    0061 9631      ADIW	R30,1
    0062 920D      ST	R0,X+
    0063 CFF9      RJMP	0x005D
    0064 940E008B  CALL	_main
_exit:
    0066 CFFF      RJMP	_exit
_delay_ms:
  a                    --> R20
  b                    --> R22
  i                    --> R16
    0067 940E00A6  CALL	push_gset2
FILE: E:\ICCAVR\project\AVRMEG~3\icc\001-LED\main.c
(0001) /*
(0002) 实验一：
(0003) 	LED发光二极管显示实验。
(0004) 	1、I/O口实验，控制PB口上的发光二极管循环显示。
(0005) 	2、内部1 M晶振，程序采用单任务方式，软件延时。
(0006) 	3、进行此实验请插上LED短路块。
(0007) 	4、此实验让大家认识最基本的IO口输出控制方法。
(0008) 
(0009) 	AVR  mega128学习板
(0010) 	www.iccavr.com	阿发
(0011) 	23:03 2007-10-09
(0012) */
(0013) #include "iom128v.h"
(0014) 
(0015) /*延时函数*/
(0016) void delay_ms(unsigned char i) {
(0017) 
(0018) 	unsigned char a, b;
(0019) 	for (a = 0; a < i; a++) {
    0069 2744      CLR	R20
    006A C006      RJMP	0x0071
(0020) 		for (b = 1; b; b++);
    006B E061      LDI	R22,1
    006C C001      RJMP	0x006E
    006D 9563      INC	R22
    006E 2366      TST	R22
    006F F7E9      BNE	0x006D
    0070 9543      INC	R20
    0071 1740      CP	R20,R16
    0072 F3C0      BCS	0x006B
    0073 940E009D  CALL	pop_gset2
    0075 9508      RET
(0021) 		}
(0022) }
(0023) 
(0024) /*IO口初始化函数*/
(0025) void io_init(void) {
(0026) 
(0027) 	DDRA = 0x00;										/*方向输入								*/
_io_init:
    0076 2422      CLR	R2
    0077 BA2A      OUT	0x1A,R2
(0028) 	PORTA = 0xFF;										/*打开上拉								*/
    0078 EF8F      LDI	R24,0xFF
    0079 BB8B      OUT	0x1B,R24
(0029) 	DDRB = 0xFF;										/*方向输出								*/
    007A BB87      OUT	0x17,R24
(0030) 	PORTB = 0xFF;										/*高电平								*/
    007B BB88      OUT	0x18,R24
(0031) 	DDRC = 0x00;										/*不用的IO口建议设置为输入带上拉		*/
    007C BA24      OUT	0x14,R2
(0032) 	PORTC = 0xFF;
    007D BB85      OUT	0x15,R24
(0033) 	DDRD = 0x00;
    007E BA21      OUT	0x11,R2
(0034) 	PORTD = 0xFF;
    007F BB82      OUT	0x12,R24
(0035) 	DDRE = 0x00;
    0080 B822      OUT	0x02,R2
(0036) 	PORTE = 0xFF;
    0081 B983      OUT	0x03,R24
(0037) 	DDRF = 0x00;
    0082 92200061  STS	0x61,R2
(0038) 	PORTF = 0xFF;
    0084 93800062  STS	0x62,R24
(0039) 	DDRG = 0x00;
    0086 92200064  STS	0x64,R2
(0040) 	PORTG = 0xFF;
    0088 93800065  STS	0x65,R24
    008A 9508      RET
(0041) }
(0042) 
(0043) void main(void) {
(0044) 
(0045) 	unsigned char i;
(0046) 
(0047) 	io_init();
_main:
  i                    --> R20
    008B DFEA      RCALL	_io_init
    008C C00E      RJMP	0x009B
(0048) 	while (1) {
(0049) 		for (i = 0; i < 8; i ++) {
    008D 2744      CLR	R20
    008E C00A      RJMP	0x0099
(0050) 			PORTB = ~(1 << i);
    008F E001      LDI	R16,1
    0090 2F14      MOV	R17,R20
    0091 940E00BF  CALL	lsl8
    0093 2E20      MOV	R2,R16
    0094 9420      COM	R2
    0095 BA28      OUT	0x18,R2
(0051) 			delay_ms(200);
FILE: <library>
    0096 EC08      LDI	R16,0xC8
    0097 DFCF      RCALL	_delay_ms
    0098 9543      INC	R20
    0099 3048      CPI	R20,0x8
    009A F3A0      BCS	0x008F
    009B CFF1      RJMP	0x008D
    009C 9508      RET
pop_gset2:
    009D E0E2      LDI	R30,2
    009E 940C00AC  JMP	pop
push_gset5:
    00A0 92FA      ST	R15,-Y
    00A1 92EA      ST	R14,-Y
push_gset4:
    00A2 92DA      ST	R13,-Y
    00A3 92CA      ST	R12,-Y
push_gset3:
    00A4 92BA      ST	R11,-Y
    00A5 92AA      ST	R10,-Y
push_gset2:
    00A6 937A      ST	R23,-Y
    00A7 936A      ST	R22,-Y
push_gset1:
    00A8 935A      ST	R21,-Y
    00A9 934A      ST	R20,-Y
    00AA 9508      RET
pop_gset1:
    00AB E0E1      LDI	R30,1
pop:
    00AC 9149      LD	R20,Y+
    00AD 9159      LD	R21,Y+
    00AE FDE0      SBRC	R30,0
    00AF 9508      RET
    00B0 9169      LD	R22,Y+
    00B1 9179      LD	R23,Y+
    00B2 FDE1      SBRC	R30,1
    00B3 9508      RET
    00B4 90A9      LD	R10,Y+
    00B5 90B9      LD	R11,Y+
    00B6 FDE2      SBRC	R30,2
    00B7 9508      RET
    00B8 90C9      LD	R12,Y+
    00B9 90D9      LD	R13,Y+
    00BA FDE3      SBRC	R30,3
    00BB 9508      RET
    00BC 90E9      LD	R14,Y+
    00BD 90F9      LD	R15,Y+
    00BE 9508      RET
lsl8:
    00BF 2311      TST	R17
    00C0 F019      BEQ	0x00C4
    00C1 0F00      LSL	R16
    00C2 951A      DEC	R17
    00C3 CFFB      RJMP	lsl8
    00C4 9508      RET