📄 485.lst
字号:
__start:
__text_start:
0059 EFCF LDI R28,0xFF
005A E1D0 LDI R29,0x10
005B BFCD OUT 0x3D,R28
005C BFDE OUT 0x3E,R29
005D 51C0 SUBI R28,0x10
005E 40D0 SBCI R29,0
005F EA0A LDI R16,0xAA
0060 8308 STD Y+0,R16
0061 2400 CLR R0
0062 E2E5 LDI R30,0x25
0063 E0F1 LDI R31,1
0064 E011 LDI R17,1
0065 33EA CPI R30,0x3A
0066 07F1 CPC R31,R17
0067 F011 BEQ 0x006A
0068 9201 ST R0,Z+
0069 CFFB RJMP 0x0065
006A 8300 STD Z+0,R16
006B E8EC LDI R30,0x8C
006C E0F0 LDI R31,0
006D E0A0 LDI R26,0
006E E0B1 LDI R27,1
006F E010 LDI R17,0
0070 3BE1 CPI R30,0xB1
0071 07F1 CPC R31,R17
0072 F021 BEQ 0x0077
0073 95C8 LPM
0074 9631 ADIW R30,1
0075 920D ST R0,X+
0076 CFF9 RJMP 0x0070
0077 940E02C2 CALL _main
_exit:
0079 CFFF RJMP _exit
FILE: D:\mojinpan\485\485_master\delay.h
(0001) /*-----------------------------------------------------------------------
(0002) 延时函数
(0003) 编译器：ICC-AVR v6.31A
(0004) 目标芯片 : M16
(0005) 时钟: 8.0000Mhz
(0006) -----------------------------------------------------------------------*/
(0007) #ifndef __delay_h
(0008) #define __delay_h
(0009) void delay_nus(unsigned int n);
(0010) void delay_nms(unsigned int n);
(0011) void delay_1us(void);
(0012) void delay_1ms(void) ;
(0013)
(0014) void delay_1us(void) //1us延时函数
(0015) {
(0016) asm("nop");
_delay_1us:
007A 0000 NOP
007B 9508 RET
_delay_nus:
i --> R20
n --> R22
007C 940E035D CALL push_gset2
007E 01B8 MOVW R22,R16
(0017) }
(0018)
(0019) void delay_nus(unsigned int n) //N us延时函数
(0020) {
(0021) unsigned int i=0;
007F 2744 CLR R20
0080 2755 CLR R21
(0022) for (i=0;i<n;i++)
0081 C003 RJMP 0x0085
(0023) delay_1us();
0082 DFF7 RCALL _delay_1us
0083 5F4F SUBI R20,0xFF
0084 4F5F SBCI R21,0xFF
0085 1746 CP R20,R22
0086 0757 CPC R21,R23
0087 F3D0 BCS 0x0082
0088 940E0351 CALL pop_gset2
008A 9508 RET
(0024) }
(0025)
(0026) void delay_1ms(void) //1ms延时函数
(0027) {
(0028) unsigned int i;
(0029) for (i=0;i<1140;i++);
_delay_1ms:
i --> R16
008B 2700 CLR R16
008C 2711 CLR R17
008D C002 RJMP 0x0090
008E 5F0F SUBI R16,0xFF
008F 4F1F SBCI R17,0xFF
0090 3704 CPI R16,0x74
0091 E0E4 LDI R30,4
0092 071E CPC R17,R30
0093 F3D0 BCS 0x008E
0094 9508 RET
_delay_nms:
i --> R20
n --> R22
0095 940E035D CALL push_gset2
0097 01B8 MOVW R22,R16
(0030) }
(0031)
(0032) void delay_nms(unsigned int n) //N ms延时函数
(0033) {
(0034) unsigned int i=0;
0098 2744 CLR R20
0099 2755 CLR R21
(0035) for (i=0;i<n;i++)
009A C003 RJMP 0x009E
(0036) delay_1ms();
009B DFEF RCALL _delay_1ms
009C 5F4F SUBI R20,0xFF
009D 4F5F SBCI R21,0xFF
009E 1746 CP R20,R22
009F 0757 CPC R21,R23
00A0 F3D0 BCS 0x009B
00A1 940E0351 CALL pop_gset2
00A3 9508 RET
FILE: D:\mojinpan\485\485_master\1602.h
(0001)
(0002) /* 用法：
(0003) LCD_init();
(0004) LCD_write_string(列,行,"字符串");
(0005) LCD_write_char(列,行,'字符');
(0006) ---------------------------------------------------------------
(0007) 下面是AVR与LCD连接信息
(0008) PC4 ->RS
(0009) PC5 ->EN
(0010) 地 ->RW
(0011) PC0 ->D4
(0012) PC1 ->D5
(0013) PC2 ->D6
(0014) PC3 ->D7
(0015) 要使用本驱动，改变下面配置信息即可
(0016) -----------------------------------------------------------------*/
(0017) #define LCD_EN_PORT PORTC //以下2个要设为同一个口
(0018) #define LCD_EN_DDR DDRC
(0019) #define LCD_RS_PORT PORTC //以下2个要设为同一个口
(0020) #define LCD_RS_DDR DDRC
(0021) #define LCD_DATA_PORT PORTC //以下3个要设为同一个口
(0022) #define LCD_DATA_DDR DDRC //默认情况下连线必须使用高四位端口,如果不是请注意修改
(0023) #define LCD_DATA_PIN PINC
(0024) #define LCD_RS (1<<PC4) //0x10 portC4 out
(0025) #define LCD_EN (1<<PC5) //0x20 portC5 out
(0026) #define LCD_DATA ((1<<PC0)|(1<<PC1)|(1<<PC2)|(1<<PC3)) //0xf0 portC 0/1/2/3 out
(0027) /*--------------------------------------------------------------------------------------------------
(0028) 函数说明
(0029) --------------------------------------------------------------------------------------------------*/
(0030) void LCD_init(void);
(0031) void LCD_en_write(void);
(0032) void LCD_write_command(unsigned char command) ;
(0033) void LCD_write_data(unsigned char data);
(0034) void LCD_set_xy (unsigned char x, unsigned char y);
(0035) void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s);
(0036) void LCD_write_char(unsigned char X,unsigned char Y,unsigned char data);
(0037)
(0038) //-----------------------------------------------------------------------------------------
(0039)
(0040) #include <macros.h>
(0041) #include "delay.h"
(0042)
(0043) void LCD_init(void) //液晶初始化
(0044) {
(0045) LCD_DATA_DDR|=LCD_DATA; //数据口方向为输出
_LCD_init:
00A4 B384 IN R24,0x14
00A5 608F ORI R24,0xF
00A6 BB84 OUT 0x14,R24
(0046) LCD_EN_DDR|=LCD_EN; //设置EN方向为输出
00A7 9AA5 SBI 0x14,5
(0047) LCD_RS_DDR|=LCD_RS; //设置RS方向为输出
00A8 9AA4 SBI 0x14,4
(0048) LCD_write_command(0x28);
00A9 E208 LDI R16,0x28
00AA D014 RCALL _LCD_write_command
(0049) LCD_en_write();
00AB D00D RCALL _LCD_en_write
(0050) delay_nus(40);
00AC E208 LDI R16,0x28
00AD E010 LDI R17,0
00AE DFCD RCALL _delay_nus
(0051) LCD_write_command(0x28); //4位显示
00AF E208 LDI R16,0x28
00B0 D00E RCALL _LCD_write_command
(0052) LCD_write_command(0x0c); //显示开
00B1 E00C LDI R16,0xC
00B2 D00C RCALL _LCD_write_command
(0053) LCD_write_command(0x01); //清屏
00B3 E001 LDI R16,1
00B4 D00A RCALL _LCD_write_command
(0054) delay_nms(2);
00B5 E002 LDI R16,2
00B6 E010 LDI R17,0
00B7 DFDD RCALL _delay_nms
00B8 9508 RET
(0055)
(0056)
(0057)
(0058) }
(0059)
(0060) void LCD_en_write(void) //液晶使能
(0061) {
(0062) LCD_EN_PORT|=LCD_EN;
_LCD_en_write:
00B9 9AAD SBI 0x15,5
(0063) delay_nus(1);
00BA E001 LDI R16,1
00BB E010 LDI R17,0
00BC DFBF RCALL _delay_nus
(0064) LCD_EN_PORT&=~LCD_EN;
00BD 98AD CBI 0x15,5
00BE 9508 RET
_LCD_write_command:
command --> R20
00BF 940E035F CALL push_gset1
00C1 2F40 MOV R20,R16
(0065) }
(0066)
(0067) void LCD_write_command(unsigned char command) //写指令
(0068) {
(0069) /* //连线为高4位的写法
(0070) delay_nus(16);
(0071) LCD_RS_PORT&=~LCD_RS; //RS=0
(0072) LCD_DATA_PORT&=0X0f; //清高四位
(0073) LCD_DATA_PORT|=command&0xf0; //写高四位
(0074) LCD_en_write();
(0075) command=command<<4; //低四位移到高四位
(0076) LCD_DATA_PORT&=0x0f; //清高四位
(0077) LCD_DATA_PORT|=command&0xf0; //写低四位
(0078) LCD_en_write();
(0079) */
(0080)
(0081) //连线为低四位的写法
(0082) delay_nus(16);
00C2 E100 LDI R16,0x10
00C3 E010 LDI R17,0
00C4 DFB7 RCALL _delay_nus
(0083) LCD_RS_PORT&=~LCD_RS; //RS=0
00C5 98AC CBI 0x15,4
(0084) LCD_DATA_PORT&=0xf0; //清高四位
00C6 B385 IN R24,0x15
00C7 7F80 ANDI R24,0xF0
00C8 BB85 OUT 0x15,R24
(0085) LCD_DATA_PORT|=(command>>4)&0x0f; //写高四位
00C9 2F84 MOV R24,R20
00CA 9582 SWAP R24
00CB 708F ANDI R24,0xF
00CC 708F ANDI R24,0xF
00CD B225 IN R2,0x15
00CE 2A28 OR R2,R24
00CF BA25 OUT 0x15,R2
(0086) LCD_en_write();
00D0 DFE8 RCALL _LCD_en_write
(0087) LCD_DATA_PORT&=0xf0; //清高四位
00D1 B385 IN R24,0x15
00D2 7F80 ANDI R24,0xF0
00D3 BB85 OUT 0x15,R24
(0088) LCD_DATA_PORT|=command&0x0f; //写低四位
00D4 2F84 MOV R24,R20
00D5 708F ANDI R24,0xF
00D6 B225 IN R2,0x15
00D7 2A28 OR R2,R24
00D8 BA25 OUT 0x15,R2
(0089) LCD_en_write();
00D9 DFDF RCALL _LCD_en_write
00DA 940E0362 CALL pop_gset1
00DC 9508 RET
_LCD_write_data:
data --> R20
00DD 940E035F CALL push_gset1
00DF 2F40 MOV R20,R16
(0090)
(0091)
(0092) }
(0093)
(0094) void LCD_write_data(unsigned char data) //写数据
(0095) {
(0096) /* //连线为高4位的写法
(0097) delay_nus(16);
(0098) LCD_RS_PORT|=LCD_RS; //RS=1
(0099) LCD_DATA_PORT&=0X0f; //清高四位
(0100) LCD_DATA_PORT|=data&0xf0; //写高四位
(0101) LCD_en_write();
(0102) data=data<<4; //低四位移到高四位
(0103) LCD_DATA_PORT&=0X0f; //清高四位
(0104) LCD_DATA_PORT|=data&0xf0; //写低四位
(0105) LCD_en_write();
(0106) */
(0107)
(0108) //连线为低四位的写法
(0109) delay_nus(16);
00E0 E100 LDI R16,0x10
00E1 E010 LDI R17,0
00E2 DF99 RCALL _delay_nus
(0110) LCD_RS_PORT|=LCD_RS; //RS=1
00E3 9AAC SBI 0x15,4
(0111) LCD_DATA_PORT&=0Xf0; //清高四位
00E4 B385 IN R24,0x15
00E5 7F80 ANDI R24,0xF0
00E6 BB85 OUT 0x15,R24
(0112) LCD_DATA_PORT|=(data>>4)&0x0f; //写高四位
00E7 2F84 MOV R24,R20
00E8 9582 SWAP R24
00E9 708F ANDI R24,0xF
00EA 708F ANDI R24,0xF
00EB B225 IN R2,0x15
00EC 2A28 OR R2,R24
00ED BA25 OUT 0x15,R2
(0113) LCD_en_write();
00EE DFCA RCALL _LCD_en_write
(0114)
(0115) LCD_DATA_PORT&=0Xf0; //清高四位
00EF B385 IN R24,0x15
00F0 7F80 ANDI R24,0xF0
00F1 BB85 OUT 0x15,R24
(0116) LCD_DATA_PORT|=data&0x0f; //写低四位
00F2 2F84 MOV R24,R20
00F3 708F ANDI R24,0xF
00F4 B225 IN R2,0x15
00F5 2A28 OR R2,R24
00F6 BA25 OUT 0x15,R2
(0117) LCD_en_write();
00F7 DFC1 RCALL _LCD_en_write
00F8 940E0362 CALL pop_gset1
00FA 9508 RET
_LCD_set_xy:
address --> R20
y --> R20
x --> R22
00FB 940E035D CALL push_gset2
00FD 2F42 MOV R20,R18
00FE 2F60 MOV R22,R16
(0118)
(0119)
(0120) }
(0121)
(0122)
(0123) void LCD_set_xy( unsigned char x, unsigned char y ) //写地址函数
(0124) {
(0125) unsigned char address;
(0126) if (y == 0) address = 0x80 + x;
00FF 2344 TST R20
0100 F419 BNE 0x0104
0101 2F46 MOV R20,R22
0102 5840 SUBI R20,0x80
0103 C002 RJMP 0x0106
(0127) else address = 0xc0 + x;
0104 2F46 MOV R20,R22
0105 5440 SUBI R20,0x40
(0128) LCD_write_command( address);
0106 2F04 MOV R16,R20
0107 DFB7 RCALL _LCD_write_command
0108 940E0351 CALL pop_gset2
010A 9508 RET
_LCD_write_string:
s --> R20
Y --> R10
X --> R22
010B 940E035B CALL push_gset3
010D 2EA2 MOV R10,R18
010E 2F60 MOV R22,R16
010F 814E LDD R20,Y+6
0110 815F LDD R21,Y+7
(0129) }
(0130)
(0131) void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s) //列x=0~15,行y=0,1
(0132) {
(0133) LCD_set_xy( X, Y ); //写地址
0111 2D2A MOV R18,R10
0112 2F06 MOV R16,R22
0113 DFE7 RCALL _LCD_set_xy
0114 C005 RJMP 0x011A
(0134) while (*s) // 写显示字符
(0135) {
(0136) LCD_write_data( *s );
0115 01FA MOVW R30,R20
0116 8100 LDD R16,Z+0
0117 DFC5 RCALL _LCD_write_data
(0137) s ++;
0118 5F4F SUBI R20,0xFF
0119 4F5F SBCI R21,0xFF
011A 01FA MOVW R30,R20
011B 8020 LDD R2,Z+0
011C 2022 TST R2
011D F7B9 BNE 0x0115
011E 940E0354 CALL pop_gset3
0120 9508 RET
_LCD_write_char:
data --> Y+4
Y --> R22
X --> R20
0121 940E035D CALL push_gset2
0123 2F62 MOV R22,R18
0124 2F40 MOV R20,R16
(0138) }
(0139)
(0140) }
(0141)
(0142) void LCD_write_char(unsigned char X,unsigned char Y,unsigned char data) //列x=0~15,行y=0,1
(0143) {
(0144) LCD_set_xy( X, Y ); //写地址
0125 2F26 MOV R18,R22
0126 2F04 MOV R16,R20
0127 DFD3 RCALL _LCD_set_xy
(0145) LCD_write_data( data);
0128 810C LDD R16,Y+4
0129 DFB3 RCALL _LCD_write_data
012A 940E0351 CALL pop_gset2
012C 9508 RET
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