prj1.lst

网卡驱动程序

(0039) void UART1_PutChar(unsigned char c)  //字符输出函数
(0040) {
(0041)    while (!(UCSR1A&(1 << UDRE1)));   //判断上次发送有没有完成
_UART1_PutChar:
  c                    --> R16
     189 9020 009B LDS	R2,0x009B
     18B FE25      SBRS	R2,5
     18C CFFC      RJMP	_UART1_PutChar
(0042)    UDR1 = c;
     18D 9300 009C STS	0x009C,R16
     18F 9508      RET
_UART1_Puts:
  s                    --> R10
     190 92AA      ST	R10,-Y
     191 92BA      ST	R11,-Y
     192 0158      MOVW	R10,R16
(0043) }
(0044) 
(0045) void UART1_Puts(unsigned char *s)
(0046) {
     193 C004      RJMP	0x0198
(0047)    while (*s)
(0048)    {
(0049)       UART1_PutChar(*s++);
     194 01F5      MOVW	R30,R10
     195 9101      LD	R16,Z+
     196 015F      MOVW	R10,R30
     197 DFF1      RCALL	_UART1_PutChar
     198 01F5      MOVW	R30,R10
     199 8020      LDD	R2,Z+0
     19A 2022      TST	R2
     19B F7C1      BNE	0x0194
     19C 90B9      LD	R11,Y+
     19D 90A9      LD	R10,Y+
     19E 9508      RET
_UART1_PutBytes:
  i                    --> R10
  ilen                 --> R14
  s                    --> R12
     19F 940E 0349 CALL	push_xgset00FC
     1A1 2EE2      MOV	R14,R18
     1A2 0168      MOVW	R12,R16
(0050)    }
(0051) }
(0052) 
(0053) //串口输出字节
(0054) void UART1_PutBytes(unsigned char *s, unsigned char ilen)
(0055) {
(0056) unsigned char i;
(0057) 
(0058)    for(i=0;i<ilen;i++)
     1A3 24AA      CLR	R10
     1A4 C005      RJMP	0x01AA
(0059)    {
(0060)       UART1_PutChar(*s++);
     1A5 01F6      MOVW	R30,R12
     1A6 9101      LD	R16,Z+
     1A7 016F      MOVW	R12,R30
     1A8 DFE0      RCALL	_UART1_PutChar
     1A9 94A3      INC	R10
     1AA 14AE      CP	R10,R14
     1AB F3C8      BCS	0x01A5
     1AC 940C 033E JMP	pop_xgset00FC
FILE: E:\__test\_RTL8019_M128_struct_Test\Lcd7920.c
(0001) //本程序测试通过     --2007.11.27
(0002) 
(0003) //本程序是7920的LM3037的液晶驱动程序
(0004) //汉字2x9
(0005) //可显示图形
(0006) //ATMEGA16, 内部晶振8M  （也可用于外部7.3728MHz晶振）
(0007) //使用串行传输 （2线）
(0008) 
(0009) #include "Lcd7920.h"
(0010) 
(0011) #define LINEWIDTH 18  //行宽
(0012) #define LINES 2       //行数
(0013) 
(0014) //LCD初始化
(0015) void LCD_Init(void)
(0016) {
(0017) 	Delay_nms(100);
_LCD_Init:
     1AE E604      LDI	R16,0x64
     1AF E010      LDI	R17,0
     1B0 940E 02F1 CALL	_Delay_nms
(0018) 
(0019)  	//端口初始化
(0020) 	LCD_CONTROL_DDR=0xFF; 
     1B2 EF8F      LDI	R24,0xFF
     1B3 BB84      OUT	0x14,R24
(0021) 
(0022) 	CLRBIT(LCD_CONTROL_PORT,E);
     1B4 98AB      CBI	0x15,3
(0023) 	CLRBIT(LCD_CONTROL_PORT,RW);
     1B5 98AA      CBI	0x15,2
(0024) 	Delay_nms(1);
     1B6 E001      LDI	R16,1
     1B7 E010      LDI	R17,0
     1B8 940E 02F1 CALL	_Delay_nms
(0025) 	
(0026) 	LCD_WriteCmd(0x20);    // 8bit I/F, basic command, graphic off
     1BA E200      LDI	R16,0x20
     1BB D021      RCALL	_LCD_WriteCmd
(0027) 	LCD_WriteCmd(0x20);    // 8bit I/F, basic command, graphic off
     1BC E200      LDI	R16,0x20
     1BD D01F      RCALL	_LCD_WriteCmd
(0028) 	LCD_WriteCmd(0x0C);    // display on
     1BE E00C      LDI	R16,0xC
     1BF D01D      RCALL	_LCD_WriteCmd
(0029) 	LCD_WriteCmd(0x06);    // cursor right shift
     1C0 E006      LDI	R16,6
     1C1 D01B      RCALL	_LCD_WriteCmd
(0030) 	
(0031) 	LCD_Clear();    // cursor right shift	
     1C2 D001      RCALL	_LCD_Clear
     1C3 9508      RET
(0032) }
(0033) 
(0034) 
(0035) //LCD清屏
(0036) void  LCD_Clear(void)
(0037) {
(0038)    LCD_WriteCmd(0x01);
_LCD_Clear:
     1C4 E001      LDI	R16,1
     1C5 D017      RCALL	_LCD_WriteCmd
(0039)    Delay_nms(1);        //发清屏命令后，一定要加这个延时，不然后面马上写字符串到LCD会出现错误
     1C6 E001      LDI	R16,1
     1C7 E010      LDI	R17,0
     1C8 940E 02F1 CALL	_Delay_nms
     1CA 9508      RET
(0040) }
(0041) 
(0042) 
(0043) //状态检查函数,判断是否处于忙状态   //--保留
(0044) void  LCD_CheckState(void)      
(0045) {
_LCD_CheckState:
     1CB 9508      RET
_LCD_Send:
  i                    --> R20
  senddata             --> R16
     1CC 934A      ST	R20,-Y
(0046) /*   unsigned char dat;
(0047)    CLRBIT(LCD_CONTROL_PORT,RS);  //RS=0
(0048)    //SETBIT(LCD_CONTROL_PORT,RW);  //RW=1
(0049)    LCD_DATA_DDR=0x00;			// portA as input
(0050)    do
(0051)    {
(0052)       SETBIT(LCD_CONTROL_PORT,E);
(0053)       NOP();
(0054)       CLRBIT(LCD_CONTROL_PORT,E);
(0055)    }
(0056)    while (LCD_DATA_PIN&0x80);
(0057)    */
(0058) }
(0059) 
(0060) 
(0061) //对LCD写入数据的时序协议处理
(0062) void LCD_Send(unsigned char senddata)   
(0063) {
(0064)    unsigned char i;
(0065) 
(0066)    for(i=0;i<8;i++)
     1CD 2744      CLR	R20
     1CE C00A      RJMP	0x01D9
(0067)    {
(0068)       if((senddata)&0x80)
     1CF FF07      SBRS	R16,7
     1D0 C002      RJMP	0x01D3
(0069)       {
(0070)          //D_OUT=1	   ;	
(0071)          SETBIT(LCD_CONTROL_PORT,RW);	
     1D1 9AAA      SBI	0x15,2
(0072)       }
     1D2 C001      RJMP	0x01D4
(0073)       else
(0074)       {
(0075)          //D_OUT=0;	
(0076)          CLRBIT(LCD_CONTROL_PORT,RW);		
     1D3 98AA      CBI	0x15,2
(0077)       }
(0078) 		
(0079)       //SCK=1;
(0080)       SETBIT(LCD_CONTROL_PORT,E);	
     1D4 9AAB      SBI	0x15,3
(0081)       NOP();
     1D5 0000      NOP
(0082)       //SCK=0;
(0083)       CLRBIT(LCD_CONTROL_PORT,E);	
     1D6 98AB      CBI	0x15,3
(0084) 		
(0085)       senddata<<=1;
     1D7 0F00      LSL	R16
     1D8 9543      INC	R20
     1D9 3048      CPI	R20,0x8
     1DA F3A0      BCS	0x01CF
     1DB 9149      LD	R20,Y+
     1DC 9508      RET
_LCD_WriteCmd:
  scmd                 --> R20
     1DD 934A      ST	R20,-Y
     1DE 2F40      MOV	R20,R16
(0086)    }
(0087) }
(0088) 
(0089) //写一个命令到LCD
(0090) void LCD_WriteCmd(unsigned char scmd)  
(0091) {
(0092)    LCD_Send(0xf8);
     1DF EF08      LDI	R16,0xF8
     1E0 DFEB      RCALL	_LCD_Send
(0093)    LCD_Send(scmd&0xf0);
     1E1 2F04      MOV	R16,R20
     1E2 7F00      ANDI	R16,0xF0
     1E3 DFE8      RCALL	_LCD_Send
(0094)    LCD_Send(scmd<<4);	
     1E4 2F04      MOV	R16,R20
     1E5 700F      ANDI	R16,0xF
     1E6 9502      SWAP	R16
     1E7 DFE4      RCALL	_LCD_Send
(0095)    Delay_nus(20);
     1E8 E104      LDI	R16,0x14
     1E9 E010      LDI	R17,0
     1EA 940E 02D0 CALL	_Delay_nus
     1EC 9149      LD	R20,Y+
     1ED 9508      RET
_LCD_WriteData:
  DData                --> R20
     1EE 934A      ST	R20,-Y
     1EF 2F40      MOV	R20,R16
(0096) }
(0097) 
(0098) ////写一个数据到LCD
(0099) void LCD_WriteData(unsigned char DData)  
(0100) {
(0101)    LCD_Send(0xfa);
     1F0 EF0A      LDI	R16,0xFA
     1F1 DFDA      RCALL	_LCD_Send
(0102)    LCD_Send(DData&0xf0);
     1F2 2F04      MOV	R16,R20
     1F3 7F00      ANDI	R16,0xF0
     1F4 DFD7      RCALL	_LCD_Send
(0103)    LCD_Send(DData<<4);	
     1F5 2F04      MOV	R16,R20
     1F6 700F      ANDI	R16,0xF
     1F7 9502      SWAP	R16
     1F8 DFD3      RCALL	_LCD_Send
(0104)    Delay_nus(20);
     1F9 E104      LDI	R16,0x14
     1FA E010      LDI	R17,0
     1FB 940E 02D0 CALL	_Delay_nus
     1FD 9149      LD	R20,Y+
     1FE 9508      RET
_LCD_Set_xy:
  i                    --> R20
  X                    --> R22
  Y                    --> R10
     1FF 940E 035A CALL	push_xgsetF00C
     201 2F62      MOV	R22,R18
     202 2EA0      MOV	R10,R16
(0105) }
(0106) 
(0107) //设置光标位置,先Y坐标后X坐标
(0108) void LCD_Set_xy(unsigned char Y, unsigned char X)
(0109) {
(0110)     unsigned char i=0x00;
     203 2744      CLR	R20
(0111)     switch(Y & 0x0f)   //确定行号
     204 2D8A      MOV	R24,R10
     205 2799      CLR	R25
     206 708F      ANDI	R24,0xF
     207 7090      ANDI	R25,0
     208 015C      MOVW	R10,R24
     209 3080      CPI	R24,0
     20A 0789      CPC	R24,R25
     20B F069      BEQ	0x0219
     20C 3081      CPI	R24,1
     20D E0E0      LDI	R30,0
     20E 079E      CPC	R25,R30
     20F F059      BEQ	0x021B
     210 3082      CPI	R24,2
     211 E0E0      LDI	R30,0
     212 079E      CPC	R25,R30
     213 F049      BEQ	0x021D
     214 3083      CPI	R24,3
     215 E0E0      LDI	R30,0
     216 079E      CPC	R25,R30
     217 F039      BEQ	0x021F
     218 C007      RJMP	0x0220
(0112)     {
(0113) 	case 0x00:
(0114) 		i=0x80;
     219 E840      LDI	R20,0x80
(0115) 		break;
     21A C005      RJMP	0x0220
(0116) 	case 0x01: 
(0117) 		i=0x90; 
     21B E940      LDI	R20,0x90
(0118) 		break;
     21C C003      RJMP	0x0220
(0119) 	case 0x02: 
(0120) 		i=0x88;
     21D E848      LDI	R20,0x88
(0121) 		break;
     21E C001      RJMP	0x0220
(0122) 	case 0x03:
(0123) 		i=0x98;
     21F E948      LDI	R20,0x98
(0124) 		break;
(0125) 	default : 
(0126) 		break;
(0127)     }
(0128)     i = (X & 0x0f)|i; //确定列号
     220 2F86      MOV	R24,R22
     221 708F      ANDI	R24,0xF
     222 2B48      OR	R20,R24
(0129)    LCD_WriteCmd(i);
     223 2F04      MOV	R16,R20
     224 DFB8      RCALL	_LCD_WriteCmd
     225 940C 0361 JMP	pop_xgsetF00C
_LCD_WriteChar:
  c1                   --> Y,+2
  Y                    --> R12
  X                    --> R10
     227 92AA      ST	R10,-Y
     228 92CA      ST	R12,-Y
     229 2EC2      MOV	R12,R18
     22A 2EA0      MOV	R10,R16
(0130) 	
(0131) }
(0132) 
(0133) //写一个字符到LCD
(0134) void LCD_WriteChar(unsigned char X,unsigned char Y,unsigned char c1)
(0135) {
(0136) //从显示屏指定的行(Y),列(X)的位置写入字符
(0137) 
(0138)    LCD_WriteCmd(0x34);        // 8bit I/F, basic command
     22B E304      LDI	R16,0x34
     22C DFB0      RCALL	_LCD_WriteCmd
(0139)    LCD_WriteCmd(0x30);        // 8bit I/F, basic command, graphic off
     22D E300      LDI	R16,0x30
     22E DFAE      RCALL	_LCD_WriteCmd
(0140)    
(0141)    LCD_Set_xy(X,Y);   
     22F 2D2C      MOV	R18,R12
     230 2D0A      MOV	R16,R10
     231 DFCD      RCALL	_LCD_Set_xy
(0142)    LCD_WriteData(c1);
     232 810A      LDD	R16,Y+2
     233 DFBA      RCALL	_LCD_WriteData
(0143)    
(0144)    Delay_nms(1); //2006.11.19
     234 E001      LDI	R16,1
     235 E010      LDI	R17,0
     236 940E 02F1 CALL	_Delay_nms
     238 90C9      LD	R12,Y+
     239 90A9      LD	R10,Y+
     23A 9508      RET
_LCD_WriteStr:
  pstr                 --> R22
  j                    --> R20
  pstr1                --> Y,+8
  Y                    --> R12
  X                    --> R10
     23B 940E 0368 CALL	push_xgsetF03C
     23D 2EC2      MOV	R12,R18
     23E 2EA0      MOV	R10,R16
(0145) }
(0146) 
(0147) //指定光标位置，写字符串到LCD显示
(0148) void LCD_WriteStr(unsigned char X,unsigned char Y,unsigned char *pstr1)
(0149) {
(0150) //从显示屏指定的行(Y),列(X)的位置写入字符串
(0151) unsigned char j;
(0152) unsigned char *pstr = pstr1;
     23F 8568      LDD	R22,Y+8
     240 8579      LDD	R23,Y+9
(0153) 
(0154)    LCD_WriteCmd(0x34);        // 8bit I/F, basic command
     241 E304      LDI	R16,0x34
     242 DF9A      RCALL	_LCD_WriteCmd
(0155)    LCD_WriteCmd(0x30);        // 8bit I/F, basic command, graphic off
     243 E300      LDI	R16,0x30
     244 DF98      RCALL	_LCD_WriteCmd
(0156) 
(0157)    LCD_Set_xy(Y,X);
     245 2D2A      MOV	R18,R10
     246 2D0C      MOV	R16,R12
     247 DFB7      RCALL	_LCD_Set_xy
(0158) 	 
(0159)    j=Y * LINEWIDTH + X;
     248 E182      LDI	R24,0x12
     249 9D8C      MUL	R24,R12
     24A 2D40      MOV	R20,R0
     24B 0D4A      ADD	R20,R10
     24C C025      RJMP	0x0272
(0160)    while (*pstr && j< (LINEWIDTH * LINES))
(0161)    {
(0162)       if (j%LINEWIDTH==0)         //判断是否换行
     24D E112      LDI	R17,0x12
     24E 2F04      MOV	R16,R20
     24F 940E 0326 CALL	mod8u
     251 2300      TST	R16
     252 F431      BNE	0x0259
(0163)       {
(0164)          LCD_Set_xy(j/LINEWIDTH,0);   //如换行, 则光标移动到行首
     253 2722      CLR	R18
     254 E112      LDI	R17,0x12
     255 2F04      MOV	R16,R20
     256 940E 0328 CALL	div8u
     258 DFA6      RCALL	_LCD_Set_xy
(0165)       }
(0166) 		 
(0167)       //避免最后一格写半个汉字, 把汉字写到下一行
(0168)       if (((j+1)%2==0) && *pstr>127 && *(pstr-1)<128) 
     259 E012      LDI	R17,2
     25A 2F04      MOV	R16,R20
     25B 5F0F      SUBI	R16,0xFF
     25C 940E 0326 CALL	mod8u
     25E 2300      TST	R16
     25F F469      BNE	0x026D
     260 E78F      LDI	R24,0x7F
     261 01FB      MOVW	R30,R22
     262 8020      LDD	R2,Z+0
     263 1582      CP	R24,R2
     264 F440      BCC	0x026D