__text_start:
__start:
    002A E5CF      LDI	R28,0x5F
    002B E0D4      LDI	R29,4
    002C BFCD      OUT	0x3D,R28
    002D BFDE      OUT	0x3E,R29
    002E 51C0      SUBI	R28,0x10
    002F 40D0      SBCI	R29,0
    0030 EA0A      LDI	R16,0xAA
    0031 8308      STD	Y+0,R16
    0032 2400      CLR	R0
    0033 E6E0      LDI	R30,0x60
    0034 E0F0      LDI	R31,0
    0035 E010      LDI	R17,0
    0036 36E0      CPI	R30,0x60
    0037 07F1      CPC	R31,R17
    0038 F011      BEQ	0x003B
    0039 9201      ST	R0,Z+
    003A CFFB      RJMP	0x0036
    003B 8300      STD	Z+0,R16
    003C E5E4      LDI	R30,0x54
    003D E0F0      LDI	R31,0
    003E E6A0      LDI	R26,0x60
    003F E0B0      LDI	R27,0
    0040 E010      LDI	R17,0
    0041 35E4      CPI	R30,0x54
    0042 07F1      CPC	R31,R17
    0043 F021      BEQ	0x0048
    0044 95C8      LPM
    0045 9631      ADIW	R30,1
    0046 920D      ST	R0,X+
    0047 CFF9      RJMP	0x0041
    0048 940E008F  CALL	_main
_exit:
    004A CFFF      RJMP	_exit
_delay_ms:
  a                    --> R20
  b                    --> R22
  i                    --> R16
    004B 940E00BE  CALL	push_gset2
FILE: E:\ICCAVR\project\AVRMEG~2\icc\011-EEPROM-LED\main.c
(0001) /*
(0002) 實(shí)驗(yàn)十一：
(0003) 
(0004) 	片內(nèi)EEPROM讀寫實(shí)險(xiǎn)。
(0005) 	1、用內(nèi)部EEPROM記錄CPU啟動(dòng)次數(shù)，并在PB口上顯示出來(lái)。
(0006) 	2、內(nèi)部1 M晶振，程序采用單任務(wù)方式，軟件延時(shí)。
(0007) 	3、進(jìn)行此實(shí)驗(yàn)請(qǐng)插上JP1的所有8個(gè)短路塊，JP7(LED_EN)短路塊。
(0008) 	4、通過(guò)此實(shí)驗(yàn)，可以對(duì)對(duì)內(nèi)部EEPROM有個(gè)初步認(rèn)識(shí)，了解EEPROM函數(shù)的操作。
(0009) 
(0010) 	AVR  mega16學(xué)習(xí)板
(0011) 	www.iccavr.com
(0012) 	14:42 2007-4-9
(0013) */
(0014) 
(0015) #include "iom16v.h"
(0016) 
(0017) /*延時(shí)函數(shù)*/
(0018) void delay_ms(unsigned char i) {
(0019) 
(0020) 	unsigned char a, b;
(0021) 	for (a = 1; a < i; a++) {
    004D E041      LDI	R20,1
    004E C006      RJMP	0x0055
(0022) 		for (b = 1; b; b++) {
    004F E061      LDI	R22,1
    0050 C001      RJMP	0x0052
    0051 9563      INC	R22
    0052 2366      TST	R22
    0053 F7E9      BNE	0x0051
    0054 9543      INC	R20
    0055 1740      CP	R20,R16
    0056 F3C0      BCS	0x004F
    0057 940E00B5  CALL	pop_gset2
    0059 9508      RET
_eprom_read:
  p_buff               --> R20
  number               --> R18
  addr                 --> R16
    005A 940E00C0  CALL	push_gset1
    005C 814A      LDD	R20,Y+2
    005D 815B      LDD	R21,Y+3
(0023) 			;
(0024) 			}
(0025) 		}
(0026) }
(0027) 
(0028) /*EEPROM讀取函數(shù)*/
(0029) /*addr：地址；number：長(zhǎng)度；p_buff：讀出數(shù)據(jù)存放指針*/
(0030) void eprom_read(unsigned int addr, unsigned char number, unsigned char *p_buff) {
(0031) 
(0032) 	while(EECR & (1 << EEWE));
    005E 99E1      SBIC	0x1C,1
    005F CFFE      RJMP	0x005E
(0033) 
(0034) 	EEARH = 0x00;
    0060 2422      CLR	R2
    0061 BA2F      OUT	0x1F,R2
    0062 C009      RJMP	0x006C
(0035) 	
(0036) 	while(number --) {
(0037) 		EEARL = addr ++;
    0063 0118      MOVW	R2,R16
    0064 5F0F      SUBI	R16,0xFF
    0065 4F1F      SBCI	R17,0xFF
    0066 BA2E      OUT	0x1E,R2
(0038) 		EECR |= (1 << EERE);
    0067 9AE0      SBI	0x1C,0
(0039) 		*p_buff++ = EEDR;
    0068 B22D      IN	R2,0x1D
    0069 01FA      MOVW	R30,R20
    006A 9221      ST	R2,Z+
    006B 01AF      MOVW	R20,R30
    006C 2E22      MOV	R2,R18
    006D 2433      CLR	R3
    006E 5021      SUBI	R18,1
    006F 2022      TST	R2
    0070 F791      BNE	0x0063
    0071 940E00C3  CALL	pop_gset1
    0073 9508      RET
_eprom_write:
  p_buff               --> R20
  number               --> R18
  addr                 --> R16
    0074 940E00C0  CALL	push_gset1
    0076 814A      LDD	R20,Y+2
    0077 815B      LDD	R21,Y+3
(0040) 		}
(0041) }
(0042) 
(0043) /*EEPROM寫入函數(shù)*/
(0044) /*addr：地址；number：長(zhǎng)度；p_buff：寫入數(shù)據(jù)存放指針*/
(0045) void eprom_write(unsigned int addr, unsigned char number, unsigned char *p_buff) {
(0046) 
(0047) 	EEARH = 0x00;
    0078 2422      CLR	R2
    0079 BA2F      OUT	0x1F,R2
    007A C00C      RJMP	0x0087
(0048) 	
(0049) 	while(number --) {
(0050) 		while(EECR & (1 << EEWE));
    007B 99E1      SBIC	0x1C,1
    007C CFFE      RJMP	0x007B
(0051) 		EEARL = addr ++;
    007D 0118      MOVW	R2,R16
    007E 5F0F      SUBI	R16,0xFF
    007F 4F1F      SBCI	R17,0xFF
    0080 BA2E      OUT	0x1E,R2
(0052) 		EEDR = *p_buff ++;
    0081 01FA      MOVW	R30,R20
    0082 9021      LD	R2,Z+
    0083 01AF      MOVW	R20,R30
    0084 BA2D      OUT	0x1D,R2
(0053) 		EECR |= (1 << EEMWE);
    0085 9AE2      SBI	0x1C,2
(0054) 		EECR |= (1 << EEWE);
    0086 9AE1      SBI	0x1C,1
    0087 2E22      MOV	R2,R18
    0088 2433      CLR	R3
    0089 5021      SUBI	R18,1
    008A 2022      TST	R2
    008B F779      BNE	0x007B
    008C 940E00C3  CALL	pop_gset1
    008E 9508      RET
_main:
  temp                 --> Y+2
    008F 9723      SBIW	R28,3
(0055) 		}
(0056) }
(0057) 
(0058) /*主函數(shù)*/
(0059) void main(void) {
(0060) 
(0061) 	unsigned char temp;
(0062) 
(0063) 	DDRA = 0x00;				/*方向輸入*/
    0090 2422      CLR	R2
    0091 BA2A      OUT	0x1A,R2
(0064) 	PORTA = 0xFF;				/*打開(kāi)上拉*/
    0092 EF8F      LDI	R24,0xFF
    0093 BB8B      OUT	0x1B,R24
(0065) 	DDRB = 0xFF;				/*方向輸出*/
    0094 BB87      OUT	0x17,R24
(0066) 	PORTB = 0xFF;				/*電平設(shè)置*/
    0095 BB88      OUT	0x18,R24
(0067) 	DDRC = 0x00;
    0096 BA24      OUT	0x14,R2
(0068) 	PORTC = 0xFF;
    0097 BB85      OUT	0x15,R24
(0069) 	DDRD = 0x00;
    0098 BA21      OUT	0x11,R2
(0070) 	PORTD = 0xFF;
    0099 BB82      OUT	0x12,R24
(0071) 
(0072) 	delay_ms(250);				/*啟動(dòng)延時(shí)*/
    009A EF0A      LDI	R16,0xFA
    009B DFAF      RCALL	_delay_ms
(0073) 	eprom_read(0x10, 0x01, &temp);		/*讀出記錄*/
    009C 01CE      MOVW	R24,R28
    009D 9602      ADIW	R24,2
    009E 8399      STD	Y+1,R25
    009F 8388      STD	Y+0,R24
    00A0 E021      LDI	R18,1
    00A1 E100      LDI	R16,0x10
    00A2 E010      LDI	R17,0
    00A3 DFB6      RCALL	_eprom_read
(0074) 	PORTB = ~temp;				/*顯示記錄*/
    00A4 802A      LDD	R2,Y+2
    00A5 9420      COM	R2
    00A6 BA28      OUT	0x18,R2
(0075) 	temp ++;				/*刷新記錄*/
    00A7 818A      LDD	R24,Y+2
    00A8 5F8F      SUBI	R24,0xFF
    00A9 838A      STD	Y+2,R24
(0076) 	eprom_write(0x10, 0x01, &temp);		/*寫入記錄*/
    00AA 01CE      MOVW	R24,R28
    00AB 9602      ADIW	R24,2
    00AC 8399      STD	Y+1,R25
    00AD 8388      STD	Y+0,R24
    00AE E021      LDI	R18,1
    00AF E100      LDI	R16,0x10
    00B0 E010      LDI	R17,0
    00B1 DFC2      RCALL	_eprom_write
(0077) 	
(0078) 	while (1) {
FILE: <library>
    00B2 CFFF      RJMP	0x00B2
    00B3 9623      ADIW	R28,3
    00B4 9508      RET
pop_gset2:
    00B5 E0E2      LDI	R30,2
    00B6 940C00C4  JMP	pop
push_gset5:
    00B8 92FA      ST	R15,-Y
    00B9 92EA      ST	R14,-Y
push_gset4:
    00BA 92DA      ST	R13,-Y
    00BB 92CA      ST	R12,-Y
push_gset3:
    00BC 92BA      ST	R11,-Y
    00BD 92AA      ST	R10,-Y
push_gset2:
    00BE 937A      ST	R23,-Y
    00BF 936A      ST	R22,-Y
push_gset1:
    00C0 935A      ST	R21,-Y
    00C1 934A      ST	R20,-Y
    00C2 9508      RET
pop_gset1:
    00C3 E0E1      LDI	R30,1
pop:
    00C4 9149      LD	R20,Y+
    00C5 9159      LD	R21,Y+
    00C6 FDE0      SBRC	R30,0
    00C7 9508      RET
    00C8 9169      LD	R22,Y+
    00C9 9179      LD	R23,Y+
    00CA FDE1      SBRC	R30,1
    00CB 9508      RET
    00CC 90A9      LD	R10,Y+
    00CD 90B9      LD	R11,Y+
    00CE FDE2      SBRC	R30,2
    00CF 9508      RET
    00D0 90C9      LD	R12,Y+
    00D1 90D9      LD	R13,Y+
    00D2 FDE3      SBRC	R30,3
    00D3 9508      RET
    00D4 90E9      LD	R14,Y+
    00D5 90F9      LD	R15,Y+
    00D6 9508      RET