Nutthaya Hankla / LCD4884

LCD4884

Dependents:   15A-ClassProjectFinal_masterfull-pae-za-leng

Fork of LCD4884 by Dan Ghiciulescu

LCD4884.cpp@1:480f22b7e9ae, 2015-12-09 (annotated)

Committer:
pppartyn
Date:
Wed Dec 09 06:34:57 2015 +0000
Revision:
1:480f22b7e9ae
Parent:
0:28f3c9274ea7 
15A-ClassProject-pae-za-leng

Who changed what in which revision?

UserRevisionLine numberNew contents of line
COX 0:28f3c9274ea7 1 /*
COX 0:28f3c9274ea7 2 Modified by COX
COX 0:28f3c9274ea7 3 version 0.1
COX 0:28f3c9274ea7 4
COX 0:28f3c9274ea7 5 Editor : COX
COX 0:28f3c9274ea7 6 Date : 06.03.2013
COX 0:28f3c9274ea7 7
COX 0:28f3c9274ea7 8 *
COX 0:28f3c9274ea7 9 * Update DFRobot source to work on FRDM KL25Z
COX 0:28f3c9274ea7 10 *
COX 0:28f3c9274ea7 11 */
COX 0:28f3c9274ea7 12
COX 0:28f3c9274ea7 13 #include "LCD4884.h"
COX 0:28f3c9274ea7 14 #include "font_6x8.h"
COX 0:28f3c9274ea7 15 #include "font_big.h"
COX 0:28f3c9274ea7 16
pppartyn 1:480f22b7e9ae 17 DigitalOut SpiClk(D13); //2- Serial Clock(Master Output)
pppartyn 1:480f22b7e9ae 18 DigitalOut SpiMosi(D3); //3- Master Output,Slave Input
pppartyn 1:480f22b7e9ae 19 DigitalOut LcdDC(D4); //4- Data/Command(command active low)
pppartyn 1:480f22b7e9ae 20 DigitalOut SpiCS(D5); //5- Chip Select,Slave Transmit Enable(active low,Master Output)
pppartyn 1:480f22b7e9ae 21 DigitalOut LcdRst(D6); //6- One Reset button
pppartyn 1:480f22b7e9ae 22 PwmOut LcdBl(D7); //7- LCD backlight
COX 0:28f3c9274ea7 23
COX 0:28f3c9274ea7 24 LCD4884::LCD4884()
COX 0:28f3c9274ea7 25 {};
COX 0:28f3c9274ea7 26
COX 0:28f3c9274ea7 27 /******************************************************************/
COX 0:28f3c9274ea7 28 void LCD4884::backlight(float dat)
COX 0:28f3c9274ea7 29 {
COX 0:28f3c9274ea7 30 LcdBl = dat;
COX 0:28f3c9274ea7 31 }
COX 0:28f3c9274ea7 32
COX 0:28f3c9274ea7 33 /******************************************************************/
COX 0:28f3c9274ea7 34 void LCD4884::LCD_init(void)
COX 0:28f3c9274ea7 35 {
COX 0:28f3c9274ea7 36 /* pin intializer */
COX 0:28f3c9274ea7 37 SpiClk = LOW;
COX 0:28f3c9274ea7 38 SpiMosi = LOW;
COX 0:28f3c9274ea7 39 SpiCS = LOW;
COX 0:28f3c9274ea7 40 LcdDC = LOW;
COX 0:28f3c9274ea7 41 LcdBl = LOW;
COX 0:28f3c9274ea7 42
COX 0:28f3c9274ea7 43 LcdRst = LOW;
COX 0:28f3c9274ea7 44 wait(ONE_US);
COX 0:28f3c9274ea7 45 LcdRst = HIGH;
COX 0:28f3c9274ea7 46
COX 0:28f3c9274ea7 47 SpiCS = LOW; //Chip Select, Slave Transmit Enable(active low, Master Output)
COX 0:28f3c9274ea7 48 wait(ONE_US);
COX 0:28f3c9274ea7 49 SpiCS = HIGH;
COX 0:28f3c9274ea7 50 wait(ONE_US);
COX 0:28f3c9274ea7 51 LcdBl = LCD_INITIAL_BRIGHTNESS;
COX 0:28f3c9274ea7 52
COX 0:28f3c9274ea7 53 //data_type=0, all are command bytes
COX 0:28f3c9274ea7 54 LCD_write_byte(0x21, 0); //Function Set:0 0 1 0 0 PD V H=0010 0001;PD=0,V=0,H=1;
COX 0:28f3c9274ea7 55 LCD_write_byte(0xc0, 0); //Set Vop:1 Vop6 Vop5 Vop4 Vop3 Vop2 Vop1 Vop0=1100 0000
COX 0:28f3c9274ea7 56 LCD_write_byte(0x06, 0); //Set Temperature Coefficient:0 0 0 0 0 1 Tc1 Tc0=0000 0110;Tc1=1,Tc0=0(Vlcd temperature coefficient 2)
COX 0:28f3c9274ea7 57 LCD_write_byte(0x13, 0); //Set Bias System (BSx):0 0 0 1 0 BS2 BS1 BS0=0001 0011;BS2=0, BS1=1, BS0=1==>N=4,MUX RATE=1:48
COX 0:28f3c9274ea7 58
COX 0:28f3c9274ea7 59 LCD_write_byte(0x20, 0);//Function Set:0 0 1 0 0 PD V H=0010 0000;PD=0,V=0,H=0;
COX 0:28f3c9274ea7 60 LCD_clear();
COX 0:28f3c9274ea7 61 LCD_write_byte(0x0c, 0);//Display Control: 0 0 0 0 1 D 0 E=0000 1100 ;D=1,E=0:normal mode
COX 0:28f3c9274ea7 62
COX 0:28f3c9274ea7 63 SpiCS = LOW;
COX 0:28f3c9274ea7 64 }
COX 0:28f3c9274ea7 65
COX 0:28f3c9274ea7 66 /******************************************************************/
COX 0:28f3c9274ea7 67 void LCD4884::LCD_write_byte(unsigned char dat, unsigned char dat_type)
COX 0:28f3c9274ea7 68 {
COX 0:28f3c9274ea7 69 unsigned int i;
COX 0:28f3c9274ea7 70 SpiCS = LOW; //Chip Enable:Active LOW
COX 0:28f3c9274ea7 71
COX 0:28f3c9274ea7 72 if (dat_type == 0)
COX 0:28f3c9274ea7 73 LcdDC = LOW; // D/C=0:the current data byte is interpreted as command byte
COX 0:28f3c9274ea7 74 else
COX 0:28f3c9274ea7 75 LcdDC = HIGH; // D/C=1:write data to display RAM
COX 0:28f3c9274ea7 76
COX 0:28f3c9274ea7 77 for(i=0;i<8;i++)
COX 0:28f3c9274ea7 78 {
COX 0:28f3c9274ea7 79 if(dat&0x80) //1000 0000
COX 0:28f3c9274ea7 80 {
COX 0:28f3c9274ea7 81 SpiMosi = HIGH;
COX 0:28f3c9274ea7 82 }
COX 0:28f3c9274ea7 83 else
COX 0:28f3c9274ea7 84 {
COX 0:28f3c9274ea7 85 SpiMosi = LOW;
COX 0:28f3c9274ea7 86 }
COX 0:28f3c9274ea7 87 SpiClk = LOW;
COX 0:28f3c9274ea7 88 dat = dat << 1;
COX 0:28f3c9274ea7 89 SpiClk = HIGH;
COX 0:28f3c9274ea7 90 }
COX 0:28f3c9274ea7 91 SpiCS = HIGH;
COX 0:28f3c9274ea7 92 }
COX 0:28f3c9274ea7 93
COX 0:28f3c9274ea7 94 /******************************************************************/
COX 0:28f3c9274ea7 95 void LCD4884::LCD_draw_bmp_pixel(unsigned char X,unsigned char Y,unsigned char *map,
COX 0:28f3c9274ea7 96 unsigned char Pix_x,unsigned char Pix_y)
COX 0:28f3c9274ea7 97 {
COX 0:28f3c9274ea7 98 unsigned int i,n;
COX 0:28f3c9274ea7 99 unsigned char row;
COX 0:28f3c9274ea7 100
COX 0:28f3c9274ea7 101 if (Pix_y%8==0)
COX 0:28f3c9274ea7 102 row=Pix_y/8; //row from 1 to 6;Pix_y from R0 to R47
COX 0:28f3c9274ea7 103 else
COX 0:28f3c9274ea7 104 row=Pix_y/8+1; //Quotient+1
COX 0:28f3c9274ea7 105
COX 0:28f3c9274ea7 106 for (n=0;n<row;n++)
COX 0:28f3c9274ea7 107 {
COX 0:28f3c9274ea7 108 LCD_set_XY(X,Y);
COX 0:28f3c9274ea7 109 for(i=0; i<Pix_x; i++)
COX 0:28f3c9274ea7 110 {
COX 0:28f3c9274ea7 111 LCD_write_byte(map[i+n*Pix_x], 1); // D/C=1:write data to display RAM
COX 0:28f3c9274ea7 112 }
COX 0:28f3c9274ea7 113 Y++;
COX 0:28f3c9274ea7 114 }
COX 0:28f3c9274ea7 115 }
COX 0:28f3c9274ea7 116
COX 0:28f3c9274ea7 117 /**************************************************************************************/
COX 0:28f3c9274ea7 118 void LCD4884::LCD_write_string(unsigned char X,unsigned char Y,char *s, char mode)
COX 0:28f3c9274ea7 119 {
COX 0:28f3c9274ea7 120 LCD_set_XY(X,Y);
COX 0:28f3c9274ea7 121 while (*s)
COX 0:28f3c9274ea7 122 {
COX 0:28f3c9274ea7 123 LCD_write_char(*s, mode);
COX 0:28f3c9274ea7 124 s++;
COX 0:28f3c9274ea7 125 }
COX 0:28f3c9274ea7 126 }
COX 0:28f3c9274ea7 127
COX 0:28f3c9274ea7 128 /**************************************************************************************/
COX 0:28f3c9274ea7 129 void LCD4884::LCD_prop_write_string(unsigned char X,unsigned char Y,char *s, char mode)
COX 0:28f3c9274ea7 130 {
COX 0:28f3c9274ea7 131 LCD_set_XY(X,Y);
COX 0:28f3c9274ea7 132 while (*s)
COX 0:28f3c9274ea7 133 {
COX 0:28f3c9274ea7 134 LCD_prop_write_char(*s, mode);
COX 0:28f3c9274ea7 135 s++;
COX 0:28f3c9274ea7 136 }
COX 0:28f3c9274ea7 137 }
COX 0:28f3c9274ea7 138
COX 0:28f3c9274ea7 139 /*************************************************************************************/
COX 0:28f3c9274ea7 140 void LCD4884::LCD_write_chinese(unsigned char X, unsigned char Y,unsigned char *c,unsigned char ch_with,unsigned char num,unsigned char line,unsigned char row)
COX 0:28f3c9274ea7 141 {
COX 0:28f3c9274ea7 142 unsigned char i,n;
COX 0:28f3c9274ea7 143 LCD_set_XY(X,Y);
COX 0:28f3c9274ea7 144 for (i=0;i<num;)
COX 0:28f3c9274ea7 145 {
COX 0:28f3c9274ea7 146 for (n=0; n<ch_with*2; n++)
COX 0:28f3c9274ea7 147 {
COX 0:28f3c9274ea7 148 if (n==ch_with)
COX 0:28f3c9274ea7 149 {
COX 0:28f3c9274ea7 150 if (i==0)
COX 0:28f3c9274ea7 151 LCD_set_XY(X,Y+1);
COX 0:28f3c9274ea7 152 else
COX 0:28f3c9274ea7 153 LCD_set_XY((X+(ch_with+row)*i),Y+1);
COX 0:28f3c9274ea7 154 }
COX 0:28f3c9274ea7 155 LCD_write_byte(c[(i*ch_with*2)+n],1);
COX 0:28f3c9274ea7 156 }
COX 0:28f3c9274ea7 157 i++;
COX 0:28f3c9274ea7 158 LCD_set_XY((X+(ch_with+row)*i),Y);
COX 0:28f3c9274ea7 159 }
COX 0:28f3c9274ea7 160 }
COX 0:28f3c9274ea7 161
COX 0:28f3c9274ea7 162
COX 0:28f3c9274ea7 163 /******************************************************************/
COX 0:28f3c9274ea7 164 void LCD4884::LCD_write_string_big ( unsigned char X,unsigned char Y, char *string, char mode )
COX 0:28f3c9274ea7 165 {
COX 0:28f3c9274ea7 166 while ( *string )
COX 0:28f3c9274ea7 167 {
COX 0:28f3c9274ea7 168 LCD_write_char_big( X, Y, *string , mode );
COX 0:28f3c9274ea7 169
COX 0:28f3c9274ea7 170 if(*string++ == '.')
COX 0:28f3c9274ea7 171 X += 5;
COX 0:28f3c9274ea7 172 else
COX 0:28f3c9274ea7 173 X += 12;
COX 0:28f3c9274ea7 174 }
COX 0:28f3c9274ea7 175 }
COX 0:28f3c9274ea7 176
COX 0:28f3c9274ea7 177 /******************************************************************/
COX 0:28f3c9274ea7 178 /* write char in big font */
COX 0:28f3c9274ea7 179 void LCD4884::LCD_write_char_big (unsigned char X,unsigned char Y, unsigned char ch, char mode)
COX 0:28f3c9274ea7 180 {
COX 0:28f3c9274ea7 181 unsigned char i, j;
COX 0:28f3c9274ea7 182 unsigned char *pFont;
COX 0:28f3c9274ea7 183 unsigned char ch_dat;
COX 0:28f3c9274ea7 184
COX 0:28f3c9274ea7 185 pFont = (unsigned char *) big_number;
COX 0:28f3c9274ea7 186
COX 0:28f3c9274ea7 187 if(ch == '.')
COX 0:28f3c9274ea7 188 ch = 10;
COX 0:28f3c9274ea7 189 else if (ch == '+')
COX 0:28f3c9274ea7 190 ch = 11;
COX 0:28f3c9274ea7 191 else if (ch == '-')
COX 0:28f3c9274ea7 192 ch = 12;
COX 0:28f3c9274ea7 193 else
COX 0:28f3c9274ea7 194 ch = ch & 0x0f;
COX 0:28f3c9274ea7 195
COX 0:28f3c9274ea7 196 for(i=0;i<3;i++)
COX 0:28f3c9274ea7 197 {
COX 0:28f3c9274ea7 198 LCD_set_XY ( X, Y+i);
COX 0:28f3c9274ea7 199
COX 0:28f3c9274ea7 200 for(j=0; j<16; j++)
COX 0:28f3c9274ea7 201 {
COX 0:28f3c9274ea7 202 ch_dat = *(pFont+ch*48 + i*16 +j);
COX 0:28f3c9274ea7 203 LCD_write_byte( (mode == MENU_NORMAL)? ch_dat : (ch_dat^0xff), 1);
COX 0:28f3c9274ea7 204 }
COX 0:28f3c9274ea7 205 }
COX 0:28f3c9274ea7 206 }
COX 0:28f3c9274ea7 207
COX 0:28f3c9274ea7 208 /******************************************************************/
COX 0:28f3c9274ea7 209 void LCD4884::LCD_write_char(unsigned char c, char mode)
COX 0:28f3c9274ea7 210 {
COX 0:28f3c9274ea7 211 unsigned char line;
COX 0:28f3c9274ea7 212 unsigned char *pFont;
COX 0:28f3c9274ea7 213 unsigned char ch;
COX 0:28f3c9274ea7 214
COX 0:28f3c9274ea7 215 pFont = (unsigned char *)font6_8; //pointer *pFont points at font6_8[][6]
COX 0:28f3c9274ea7 216 c -= 32; // the ASCII of "SP" is 32
COX 0:28f3c9274ea7 217
COX 0:28f3c9274ea7 218 for (line=0; line<6; line++)
COX 0:28f3c9274ea7 219 {
COX 0:28f3c9274ea7 220 ch = *(pFont+c*6+line); //read c from the font6_8[][6] (the detail information is in the "font6x8.h")
COX 0:28f3c9274ea7 221 LCD_write_byte( (mode==MENU_NORMAL)? ch: (ch^ 0xff) , 1); //MENU_NORMAL=0,True:return ch;False:return ch
COX 0:28f3c9274ea7 222 }
COX 0:28f3c9274ea7 223 }
COX 0:28f3c9274ea7 224
COX 0:28f3c9274ea7 225 /*******************************************************************/
COX 0:28f3c9274ea7 226 unsigned char LCD4884::LCD_prop_write_char(unsigned char c, char mode)
COX 0:28f3c9274ea7 227 {
COX 0:28f3c9274ea7 228 int line, line_s=0, line_e=2;
COX 0:28f3c9274ea7 229 unsigned char *pFont;
COX 0:28f3c9274ea7 230 unsigned char ch;
COX 0:28f3c9274ea7 231
COX 0:28f3c9274ea7 232 pFont = (unsigned char *)font6_8;
COX 0:28f3c9274ea7 233 if (c -= 32)
COX 0:28f3c9274ea7 234 {
COX 0:28f3c9274ea7 235 for (line_s=0; line_s<6; line_s++)
COX 0:28f3c9274ea7 236 {
COX 0:28f3c9274ea7 237 if(*(pFont+c*6+line_s))
COX 0:28f3c9274ea7 238 break;
COX 0:28f3c9274ea7 239 }
COX 0:28f3c9274ea7 240 for (line_e=5; line_e<0; line_e--)
COX 0:28f3c9274ea7 241 {
COX 0:28f3c9274ea7 242 if(*(pFont+c*6+line_e))
COX 0:28f3c9274ea7 243 break;
COX 0:28f3c9274ea7 244 }
COX 0:28f3c9274ea7 245 }
COX 0:28f3c9274ea7 246 for (line=line_s; line<line_e+1; line++)
COX 0:28f3c9274ea7 247 {
COX 0:28f3c9274ea7 248 ch = *(pFont+c*6+line);
COX 0:28f3c9274ea7 249 LCD_write_byte( (mode==MENU_NORMAL)? ch: (ch^ 0xff) , 1);
COX 0:28f3c9274ea7 250 }
COX 0:28f3c9274ea7 251 LCD_write_byte( (mode==MENU_NORMAL)? 0:0xff, 1);
COX 0:28f3c9274ea7 252 return ((unsigned char)(line_e+2 - line_s));
COX 0:28f3c9274ea7 253 }
COX 0:28f3c9274ea7 254
COX 0:28f3c9274ea7 255 /******************************************************************/
COX 0:28f3c9274ea7 256 void LCD4884::LCD_set_XY(unsigned char X, unsigned char Y)
COX 0:28f3c9274ea7 257 {
COX 0:28f3c9274ea7 258 LCD_write_byte(0x40 | Y, 0); // column
COX 0:28f3c9274ea7 259 LCD_write_byte(0x80 | X, 0); // row
COX 0:28f3c9274ea7 260 }
COX 0:28f3c9274ea7 261
COX 0:28f3c9274ea7 262 /******************************************************************/
COX 0:28f3c9274ea7 263 void LCD4884::LCD_clear(void)
COX 0:28f3c9274ea7 264 {
COX 0:28f3c9274ea7 265 unsigned int i;
COX 0:28f3c9274ea7 266
COX 0:28f3c9274ea7 267 LCD_write_byte(0x0c, 0);
COX 0:28f3c9274ea7 268 LCD_write_byte(0x80, 0);
COX 0:28f3c9274ea7 269
COX 0:28f3c9274ea7 270 for (i=0; i<504; i++) //6*84
COX 0:28f3c9274ea7 271 {
COX 0:28f3c9274ea7 272 LCD_write_byte(0, 1);
COX 0:28f3c9274ea7 273 }
COX 0:28f3c9274ea7 274 }
COX 0:28f3c9274ea7 275