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1 //器件：LCM2401282ZK 2 //控制器：T6963C 3 //日期：2009.06.15 4 #include <msp430x14x.h> 5 #include "LCM2401282ZK.h" 6 //============================控制线定义======================================== 7 #define WR1 BIT3 // WR1 = P5.3 8 #define RD1 BIT2 // RD1 = P5.2 9 #define CE BIT1 // CE = P5.1 10 #define CD BIT6 // CD = P3.6 11 #define FS BIT0 // FS = P5.0 12 #define RST BIT7 // RST = P3.7 正常情况下，5个低电平信号实现复位，然后高电平进入正常工作状态 13 #define WR1_0 P5OUT &= ~WR1 14 #define WR1_1 P5OUT |= WR1 15 #define RD1_0 P5OUT &= ~RD1 16 #define RD1_1 P5OUT |= RD1 17 #define CE_0 P5OUT &= ~CE 18 #define CE_1 P5OUT |= CE 19 #define CD_0 P3OUT &= ~CD 20 #define CD_1 P3OUT |= CD 21 #define FS_0 P5OUT &= ~FS 22 #define FS_1 P5OUT |= FS 23 #define RST_0 P3OUT &= ~RST 24 #define RST_1 P3OUT |= RST // 控制线输出高、低电平定义 25 unsigned char cradd1,cradd2,dat2,dat0,com,ctrlcode; 26 unsigned char urow,ucol,h; 27 unsigned char STA; //用于存放p4口的状态 28 //============================================================================== 29 // 定义的汉字字库 30 //============================================================================== 31 const unsigned char hztab_bzj[175][32]={ 32 };// 这里自己定义字库 33 //==============================小延时========================================== 34 void short_delay(unsigned int i) 35 { 36 unsigned int j; 37 for(j=0;j<=i;j++); 38 } 39 //==============================延时ms级======================================== 40 void delayms(unsigned char tickms) 41 { 42 unsigned int count,i; 43 _NOP(); 44 _NOP(); 45 _NOP(); 46 for(i=tickms;i>0;i--) 47 { for(count=0;count<4000;count++) {;} 48 _NOP(); 49 } 50 } 51 //==============================写显示数据子程序（左）========================== 52 void wrdata(unsigned char dat0) 53 { 54 unsigned char cradd1; 55 CD_1; 56 CE_0; 57 do 58 { 59 P4DIR=0xff; //P4口设置为输出 60 P4OUT=0xff; 61 RD1_0; 62 P4DIR=0x00; //P4口设置为输入 63 cradd1=P4IN; 64 RD1_1; 65 } 66 while((cradd1&0x03)==0) ; 67 P4DIR=0xff; //P4口设置为输出 68 P4OUT=0xff; 69 CD_0; 70 P4OUT=dat0; 71 WR1_0; 72 WR1_1; 73 } 74 //==============================/* 写指令代码子程序（左）*/===================== 75 void wrctrl0(unsigned char com) 76 { 77 unsigned char cradd1; 78 CD_1; 79 CE_0; 80 do 81 { 82 P4DIR=0xff; //P4口设置为输出 83 P4OUT=0xff; 84 RD1_0; 85 P4DIR=0x00; //P4口设置为输入 86 cradd1=P4IN; 87 RD1_1; 88 } 89 while((cradd1&0x03)==0); 90 P4DIR=0xff; //P4口设置为输出 91 P4OUT=0xff; 92 CD_1; 93 P4OUT=com; 94 WR1_0; 95 WR1_1; 96 } 97 void wrctrl(unsigned char dat1,unsigned char dat2,unsigned char ctrlcode) 98 { 99 wrdata(dat1); 100 _NOP(); 101 _NOP(); 102 _NOP(); 103 wrdata(dat2); 104 _NOP(); 105 _NOP(); 106 _NOP(); 107 wrctrl0(ctrlcode); 108 } 109 //==============================清屏============================================ 110 void clrc(void) 111 { unsigned char i,j; 112 wrctrl(0x00,0x00,0x24); 113 wrctrl0(0xb0); 114 for(i=0;i<64;i++) 115 { 116 for(j=0;j<30;j++) 117 { 118 wrdata(0x10); 119 } 120 } 121 } 122 //==============================清寄存器======================================== 123 void clrg(void) 124 { unsigned char i,j; 125 wrctrl(0x00,0x08,0x42); 126 wrctrl(0x1e,0x00,0x43); 127 wrctrl(0x00,0x08,0x24); 128 wrctrl0(0xb0); 129 for(i=0;i<128;i++) 130 { 131 for(j=0;j<30;j++) 132 { 133 wrdata(0x00); 134 } 135 } 136 wrctrl0(0xb2); 137 } 138 //============================================================================== 139 void allon(void) 140 { unsigned char i,j; 141 wrctrl(0x00,0x08,0x42); 142 wrctrl(0x1e,0x00,0x43); 143 wrctrl(0x00,0x08,0x24); 144 wrctrl0(0xb0); 145 for(i=0;i<64;i++) 146 { 147 for(j=0;j<30;j++) 148 { 149 wrdata(0xff); 150 } 151 } 152 wrctrl0(0xb2); 153 } 154 //============================================================================== 155 void stripe(void) 156 { unsigned char i,j; 157 wrctrl(0x00,0x08,0x42); 158 wrctrl(0x1e,0x00,0x43); 159 wrctrl(0x00,0x08,0x24); 160 wrctrl0(0xb0); 161 for(i=0;i<64;i++) 162 { 163 for(j=0;j<30;j++) 164 { 165 wrdata(0xaa); 166 } 167 } 168 wrctrl0(0xb2); 169 } 170 //============================================================================== 171 void stripe1(void) 172 { unsigned char i,j; 173 wrctrl(0x00,0x08,0x42); 174 wrctrl(0x1e,0x00,0x43); 175 wrctrl(0x00,0x08,0x24); 176 wrctrl0(0xb0); 177 for(i=0;i<64;i++) 178 { 179 for(j=0;j<30;j++) 180 { 181 wrdata(0x55); 182 } 183 } 184 wrctrl0(0xb2); 185 } 186 //==============================/* 设置当前地址*/=============================== 187 void fnSetPos(unsigned char urow, unsigned char ucol) 188 { 189 unsigned int iPos; 190 iPos = urow * 30 + ucol; 191 wrctrl(iPos & 0xFF,iPos / 256+0x08,0x24); 192 } 193 //==============================/*写汉字子程序*/================================ 194 void wrhz_lcd(unsigned char h,unsigned char urow,unsigned char ucol) 195 { unsigned char dat10; 196 unsigned int i,j,k; 197 wrctrl(0x00,0x08,0x42); 198 wrctrl(0x1e,0x00,0x43); 199 wrctrl(0x00,0x08,0x24); 200 fnSetPos(urow, ucol); 201 k=0; 202 for(i=0;i<16;i++) 203 { wrctrl0(0xb0); 204 for(j=0;j<2;j++) 205 { 206 dat10= hztab_bzj[h][k]; 207 wrdata(dat10); 208 k++; 209 } 210 wrctrl0(0xb2); 211 fnSetPos(urow+(i+1), ucol); 212 } 213 } 214 //2009.07.06 evening 215 //============================================================================== 216 //==============================读液晶状态字到STA===============================1 217 //功能：用于往液晶写数据或命令之前判断忙闲 218 void read_sta(void) 219 { 220 P4DIR=0x00; //P4数据输入，由液晶到430，不需要电平的转换，因为是3.3V的液晶模块 221 CD_1; //命令方式 222 RD1_0; //read 223 STA=P4IN; //读回状态 224 RD1_1; //cancel read 225 P4DIR=0xff; //P4口设置为数据输出模式，由430到液晶 226 } 227 //==============================判断位S1,S0函数（读写指令和读写数据状态）=======2 228 void ST1(void) 229 { 230 do 231 { 232 read_sta(); 233 } 234 while((STA&0x03)!=0x03); //0000 0011---忙：1 闲：0 235 } 236 //==============================判断位S2函数（数据自动读状态）==================3 237 void ST2(void) 238 { 239 do 240 { 241 read_sta(); 242 } 243 while((STA&0x04)!=0x04); //0000 0100---忙：1 闲：0 244 } 245 //==============================判断位S3函数（数据自动写状态）==================4 246 void ST3(void) 247 { 248 do 249 { 250 read_sta(); 251 } 252 while((STA&0x08)!=0x08); //0000 1000---忙：1 闲：0 253 } 254 //==============================/*写入数据字节 */ ==============================5 255 //one byte 256 void write_data(unsigned char Byte ) 257 { 258 ST1(); //读完状态后，设置为输出模式---这里是正确的 259 P4OUT = Byte; 260 CD_0; //数据方式 261 WR1_0; // write 262 WR1_1; 263 } 264 //==============================/*自动写入数据字节 */ ==========================6 265 //不用判断状态标志位 266 void autowrite_data(unsigned char Byte ) 267 { 268 P4OUT = Byte; 269 CD_0; //数据方式 270 WR1_0; // write 271 WR1_1; 272 } 273 //==============================/*写入命令字 */ ================================7 274 void write_cmd(unsigned char cmd ) 275 { 276 ST1(); 277 P4OUT = cmd ; 278 CD_1; //命令方式 279 WR1_0; // write 280 WR1_1; 281 } 282 //==============================/*写只有一个参数的命令 */ =====================8 283 void write_onepara(unsigned char dat1,unsigned char command ) 284 { 285 write_data(dat1); 286 write_cmd(command); 287 } 288 //==============================/*写含有二个参数的命令 */ =====================9 289 void write_doublepara(unsigned char dat1,unsigned char dat2,unsigned char command ) 290 { 291 write_data(dat1); 292 write_data(dat2); 293 write_cmd(command); 294 } 295 //==============================/*清显示缓冲的函数 */ ========================10 296 void CLEAR_RAM( void ) 297 { 298 int i; 299 write_doublepara(0x00,0x00,0x24); /* 设置显示RAM 首地址 */ 300 //24H Address Pointer Set D1:Low ADRS D2:High ADRS 301 //the address pointer se command is used to indicate the start address for writing(or reading) to external RAM. 302 write_cmd(0xb0); /* 设置自动写方式 */ 303 //b0H Data auto write set 304 //Note:Status check for auto mode(STA2,STA3)should be checked between each data. 305 for(i=0;i<8192;i++) /* 清8K=8192存储器 */ 306 { 307 ST3(); /* 判状态位S3 */ 308 write_data(0x00); /* 写入数据 */ 309 } 310 write_cmd(0xb2); /* 设置自动写结束指令 */ 311 //b2H Auto reset 312 // Auto reset should be peRFormed after checking STA3=1(STA2=1). 313 } 314 //==============================/*对液晶屏的一些初始设置函数 */ ==============11 315 void LcdIni( void ) 316 { 317 write_doublepara(0x00,0x00,0x40); /*设文本显示区域首地址*/ 318 //40H Text home address set D1:Low address D2:High address 319 //The starting address of external display RAM for Text display is defined by this command. 320 //The text home address shows the left end and most upper position. 321 write_doublepara(0x20,0x00,0x41); /*设文本显示区域宽度*/ 322 //显示区域宽度为32.。需要说明的是为了计算地址的方便，设置显示区域的宽度为20H 323 //41H Text area set D1:Columns(列) D2:00H 324 //---------------------------宽度根据实际情况来改变吧！！！2009.07.06 325 /* 326 ------------------------------------------------------------------------ 327 TH | | TH+CL 328 ------------------------------------------------------------------------ 329 TH+TA | | TH+TA+CL 330 ------------------------------------------------------------------------ 331 (TH+TA)+TA | | TH+2TA+CL 332 ------------------------------------------------------------------------ 333 TH:Text home address 334 TA:Text area number(columns) 335 CL:Columns are fixed by hardware.(pin-programmable) 336 */ 337 //write_doublepara(0x03,0x00,0x22); /* 设置CGRAM偏置地址 */ 338 //22H Function:Offset Register Set D1:Data D2:00H 339 //The offset register is used to determine external character generator RAM area. 340 //The upper 5bit(ad15-ad11)are determined by offset register. 341 write_doublepara(0x00,0x08,0x42); /*设图形显示区域首地址*/ 342 //42H Graphic home address set D1:Low address D2:High address 343 write_doublepara(0x20,0x00,0x43); /*设图形显示区域宽度*/ 344 //0x1e-ox20 345 //43H Graphic area set D1:Columns D2:00H 346 /* 347 ------------------------------------------------------------------------ 348 GH | | GH+CL 349 ------------------------------------------------------------------------ 350 GH+GA | | GH+GA+CL 351 ------------------------------------------------------------------------ 352 (GH+GA)+GA | | GH+2GA+CL 353 ------------------------------------------------------------------------ 354 GH:Graphic home address 355 GA:Graphic area number(columns) 356 CL:Columns are fixed by hardware.(pin-programmable) 357 */ 358 write_cmd(0xa0); /*光标形状设置*/ 359 write_doublepara(0x00,0x00,0x21); /* 设置光标位置*/ 360 /* 361 1010 0000 | 1 line cursor 362 1010 0001 | 2 line cursor 363 …… | …… 364 10100111 | 8 lines cursor,选择为最大的光标 365 when cursor display is ON,this command selects the cursor pattern form 1 366 line to 8 lines.the cursor address is defined by cursor pointer set command. 367 */ 368 //write_doublepara(0x08,0x08,0x21); /* 设置光标 位置*/ 369 //21H Cursor Pointer Set X ADRS Y ADRS 370 //X ADRS----=00H~4FH (Lower 7bits are valid) 371 //Y ADRS----=00H~1FH (Lower 5bits are valid) 372 //The cursor position is moved only by this command. 373 write_cmd(0x80); /*显示方式设置逻辑"或"合成, 内部字符发生器有效*/ 374 /* Mode Set 375 ------------------------------------------------------------------------ 376 Code | Function 377 1000x000 | "OR" Mode 378 1000x001 | "EXOR" Mode 379 1000x011 | "AND" Mode 380 1000x100 | "TEXT ATTRIBUTE" Mode 381 10000xxx | Internal Charater Generator Mode 382 10001xxx | External …… 383 ------------------------------------------------------------------------ 384 When internal character generator mode is selected,character code 00 385 -7FH are selected from built-in character generator ROM.The character code 386 80H-FFH are automatically selected external character generator RAM. 387 */ 388 //write_cmd(0x9c); /*显示开关设置---开本和开图形显示*/ 389 write_cmd(0x9f); 390 /* Display Set 391 ------------------------------------------------------------------------ 392 Code | Function 393 10010000 | Display off 394 1001xx10 | Cursor on,blink off 395 1001xx11 | Cursor on,blink on 396 100101xx | Text on,graphic off 397 100110xx | Text off,graphic on 398 100111xx | Text on,graphic on 399 ------------------------------------------------------------------------ 400 1 0 0 1 d3 d2 d1 d0 401 |d0:Cursor blink on:1,off:0 402 |d1:Cursor display on:1,off:0 403 |d2:Text display on:1,off:0 404 |d3:Graphic display on:1,off:0 405 Note:It is necessary to turn on "Text display" and "Graphic display" in 406 following case. 407 1)Combination of text/graphic display; 408 2)Attribute function; 409 */ 410 /*初始化完成后，开文本和图形显示。此时调整对比度电压，显示屏上将因显示存 411 储器上电时的随机数据而显示出随机的图形和字符。以此可以验证接口电路和驱动 412 程序的正确性。*/ 413 //CLEAR_RAM(); 414 } 415 //==============================西文字符写入函数================================ 416 //x_asx:0~29; y_asc:0~15 417 void write_asc(unsigned char x_asc,unsigned char y_asc,unsigned char code_asc) 418 { 419 unsigned int address; 420 address=y_asc*32+x_asc; 421 write_doublepara((unsigned char)(address),(unsigned char)(address>>8),0x24); 422 //设置显示存储器地址 423 write_onepara(code_asc,0xc4); 424 //装入字符代码，写入数据，地址不变 425 } 426 //==============================汉字写入函数（正显）============================ 427 //x_hz:0-29; y_hz:0-127 428 void write_hz1(unsigned char x_hz,unsigned char y_hz,unsigned char code_hz) 429 { 430 unsigned char i_hz; 431 unsigned int address,addr_hz; 432 address=y_hz*32+x_hz+0x0800; //计算显示存储器的地址 433 //addr_hz=code_hz*32; //计算汉字字模地址（cctab的下标）由32改为16 434 addr_hz=0; 435 for(i_hz=0;i_hz<16;i_hz++) //计数值16 436 { 437 write_doublepara((unsigned char)(address),(unsigned char)(address>>8),0x24); 438 //设置显示存储器地址 439 write_onepara(hztab_bzj[code_hz][addr_hz],0xc0); //写入汉字字模左部 440 write_onepara(hztab_bzj[code_hz][16+addr_hz++],0xc0);//写入汉字字模右部 441 address+=32;//修改显示存储器地址，显示下一列（共16列） 442 } 443 } 444 //==============================汉字写入函数（反显）============================ 445 void write_hz2(unsigned char x_hz,unsigned char y_hz,unsigned char code_hz) 446 { 447 unsigned char i_hz; 448 unsigned int address,addr_hz; 449 address=y_hz*32+x_hz+0x0800; //计算显示存储器的地址 450 //addr_hz=code_hz*32; //计算汉字字模地址（cctab的下标）由32改为16 451 addr_hz=0; 452 for(i_hz=0;i_hz<16;i_hz++) //计数值16 453 { 454 write_doublepara((unsigned char)(address),(unsigned char)(address>>8),0x24); 455 //设置显示存储器地址 456 write_onepara((255-hztab_bzj[code_hz][addr_hz]),0xc0);//写入汉字字模左部 457 write_onepara((255-hztab_bzj[code_hz][16+addr_hz++]),0xc0);//写入汉字字模右部 458 address+=32;//修改显示存储器地址，显示下一列（共16列） 459 } 460 } 461 //================================显示一个点函数================================ 462 //x:0-239; y:0-127(消除点) 128-255（显示点） 463 void write_point(unsigned char x,unsigned char y) 464 { 465 unsigned char x_pt,y_pt; 466 unsigned int address; 467 x_pt=x; 468 y_pt=y; 469 address=(y_pt&0x7f)*32+x_pt/8+0x0800;//计算显示存储器地址 470 write_doublepara((unsigned char)(address),(unsigned char)(address>>8),0x24); 471 //设置显示存储器地址 472 x_pt=(~(x_pt%8))&0x07; 473 y_pt=((y_pt&0x80)>>4)|0xf0; 474 write_cmd(x_pt|y_pt);//写入数据 475 } 476 //===================================显示矩形框================================= 477 //x:0-239,y:0-127 478 void rectangle(unsigned char xstar,unsigned char xend,unsigned char ystar,unsigned char yend) 479 { 480 unsigned char i; 481 ystar+=128; 482 yend+=128; //显示点 483 for(i=xstar;i<=xend;i++) 484 { 485 write_point(i,ystar); 486 write_point(i,yend); 487 } 488 for(i=ystar;i<=yend;i++) 489 { 490 write_point(xstar,i); 491 write_point(xend,i); 492 } 493 } 494 //========================================擦除矩形框============================ 495 void clr_rectangle(unsigned char xstar,unsigned char xend,unsigned char ystar,unsigned char yend) 496 { 497 unsigned char i; 498 for(i=xstar;i<=xend;i++) 499 { 500 write_point(i,ystar); 501 write_point(i,yend); 502 } 503 for(i=ystar;i<=yend;i++) 504 { 505 write_point(xstar,i); 506 write_point(xend,i); 507 } 508 } 509 //==============================================================================1400
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