Laurens Tromp / charLCD

General purpose character LCD library. I found the TextLCD library had too many constraints and it didn\\\\\\\'t supply acces to all functions in the HD44780 chipset, so i decided to write my own character lcd library.

charLcd.cpp@2:18f6402fd025, 2011-04-07 (annotated)

Committer:
lktromp
Date:
Thu Apr 07 11:29:55 2011 +0000
Revision:
2:18f6402fd025
Parent:
1:1349bedd5793 
Little bit further

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lktromp 1:1349bedd5793 1 #include "mbed.h"
lktromp 1:1349bedd5793 2 #include "charLcd.h"
lktromp 1:1349bedd5793 3 #include "hd44780.h"
lktromp 1:1349bedd5793 4 #include "main.h"
lktromp 1:1349bedd5793 5 Serial pc(USBTX, USBRX);
lktromp 1:1349bedd5793 6 #define DEBUG
lktromp 1:1349bedd5793 7
lktromp 2:18f6402fd025 8 /** LCD constructor
lktromp 2:18f6402fd025 9 *
lktromp 2:18f6402fd025 10 * More details about the function goes here
lktromp 2:18f6402fd025 11 * and here
lktromp 2:18f6402fd025 12 *
lktromp 2:18f6402fd025 13 * @param x a variable used by foo
lktromp 2:18f6402fd025 14 * @returns something magical done with x
lktromp 2:18f6402fd025 15 */
lktromp 2:18f6402fd025 16 //constructor for 4-bit lcd control
lktromp 1:1349bedd5793 17 charLcd::charLcd(PinName rs, PinName en, PinName rw, PinName d4, PinName d5, PinName d6, PinName d7, LCDType type)
lktromp 1:1349bedd5793 18 : cl_rs(rs), cl_rw(rw), cl_en(en), cl_charLcdData(d7, d6, d5, d4) {
lktromp 1:1349bedd5793 19 pc.baud(115200);
lktromp 1:1349bedd5793 20 #ifdef DEBUG
lktromp 1:1349bedd5793 21 pc.printf("LCD 4bit init\r\n");
lktromp 1:1349bedd5793 22 #endif //DEBUG
lktromp 1:1349bedd5793 23 charLcdResetLCD();
lktromp 1:1349bedd5793 24 }
lktromp 1:1349bedd5793 25
lktromp 2:18f6402fd025 26 /** LCD constructor
lktromp 2:18f6402fd025 27 *
lktromp 2:18f6402fd025 28 * More details about the function goes here
lktromp 2:18f6402fd025 29 * and here
lktromp 2:18f6402fd025 30 *
lktromp 2:18f6402fd025 31 * @param x a variable used by foo
lktromp 2:18f6402fd025 32 * @returns something magical done with x
lktromp 2:18f6402fd025 33 */
lktromp 2:18f6402fd025 34 //constructor for 8-bit lcd control
lktromp 1:1349bedd5793 35 charLcd::charLcd(PinName rs, PinName en, PinName rw, PinName d0, PinName d1, PinName d2, PinName d3, PinName d4, PinName d5,
lktromp 1:1349bedd5793 36 PinName d6, PinName d7, LCDType type)
lktromp 1:1349bedd5793 37 : cl_rs(rs), cl_rw(rw), cl_en(en), cl_charLcdData(d7, d6, d5, d4, d3, d2, d1, d0) {
lktromp 1:1349bedd5793 38
lktromp 1:1349bedd5793 39 pc.baud(115200);
lktromp 1:1349bedd5793 40 #ifdef DEBUG
lktromp 1:1349bedd5793 41 pc.printf("LCD 8-bit init\r\n");
lktromp 1:1349bedd5793 42 #endif //DEBUG
lktromp 1:1349bedd5793 43 charLcdResetLCD();
lktromp 1:1349bedd5793 44
lktromp 1:1349bedd5793 45 }
lktromp 1:1349bedd5793 46
lktromp 1:1349bedd5793 47
lktromp 2:18f6402fd025 48 /** LCD constructor
lktromp 2:18f6402fd025 49 *
lktromp 2:18f6402fd025 50 * More details about the function goes here
lktromp 2:18f6402fd025 51 * and here
lktromp 2:18f6402fd025 52 *
lktromp 2:18f6402fd025 53 * @param x a variable used by foo
lktromp 2:18f6402fd025 54 * @returns something magical done with x
lktromp 2:18f6402fd025 55 */
lktromp 1:1349bedd5793 56 void charLcd::charLcdResetLCD(void) {
lktromp 2:18f6402fd025 57 cl_charLcdData.output();
lktromp 2:18f6402fd025 58 cl_charLcdData = 0x00;
lktromp 1:1349bedd5793 59 cl_en = 1;
lktromp 1:1349bedd5793 60 cl_rs = 0; // command mode
lktromp 1:1349bedd5793 61 cl_rw = 0;
lktromp 2:18f6402fd025 62 wait_ms(10); // Wait 15ms to ensure powered up
lktromp 2:18f6402fd025 63 //charLcdFunctionSet(0,1,0);
lktromp 2:18f6402fd025 64 //wait_ms(5); // Wait 15ms to ensure powered up
lktromp 2:18f6402fd025 65 //charLcdFunctionSet(0,1,0);
lktromp 2:18f6402fd025 66 //wait_us(100); // Wait 15ms to ensure powered up
lktromp 2:18f6402fd025 67 //charLcdFunctionSet(0,1,0);
lktromp 2:18f6402fd025 68 //wait_us(100); // Wait 15ms to ensure powered up
lktromp 2:18f6402fd025 69 //charLcdFunctionSet(0,1,0);
lktromp 2:18f6402fd025 70 //charLcdDisplayOn(0);
lktromp 2:18f6402fd025 71 while (1) {
lktromp 2:18f6402fd025 72 charLcdClear();
lktromp 2:18f6402fd025 73 wait_ms(500);
lktromp 2:18f6402fd025 74 cl_charLcdData = 0x00;
lktromp 2:18f6402fd025 75 wait_ms(500);
lktromp 2:18f6402fd025 76 }
lktromp 2:18f6402fd025 77 charLcdEntryMode(shift_inc);
lktromp 2:18f6402fd025 78 wait_ms(20); // Wait 15ms to ensure powered up
lktromp 1:1349bedd5793 79 charLcdFunctionSet(0,1,0);
lktromp 2:18f6402fd025 80 wait_ms(20); // Wait 15ms to ensure powered up
lktromp 1:1349bedd5793 81 charLcdDisplayOn(1);
lktromp 1:1349bedd5793 82 wait_ms(20); // Wait 15ms to ensure powered up
lktromp 1:1349bedd5793 83 charLcdCursor(1, 1);
lktromp 1:1349bedd5793 84 wait_ms(20); // Wait 15ms to ensure powered up
lktromp 2:18f6402fd025 85 charLcdEntryMode(shift_inc);
lktromp 1:1349bedd5793 86 }
lktromp 1:1349bedd5793 87
lktromp 2:18f6402fd025 88 /** LCD constructor
lktromp 2:18f6402fd025 89 *
lktromp 2:18f6402fd025 90 * More details about the function goes here
lktromp 2:18f6402fd025 91 * and here
lktromp 2:18f6402fd025 92 *
lktromp 2:18f6402fd025 93 * @param x a variable used by foo
lktromp 2:18f6402fd025 94 * @returns something magical done with x
lktromp 2:18f6402fd025 95 */
lktromp 1:1349bedd5793 96 void charLcd::charLcdClear (void){
lktromp 1:1349bedd5793 97 #ifdef DEBUG
lktromp 1:1349bedd5793 98 pc.printf("LCD Clear\r\n");
lktromp 1:1349bedd5793 99 #endif //DEBUG
lktromp 1:1349bedd5793 100 charLcdSendCommand(LCD_CLEAR);
lktromp 1:1349bedd5793 101 }
lktromp 2:18f6402fd025 102
lktromp 2:18f6402fd025 103 /** LCD constructor
lktromp 2:18f6402fd025 104 *
lktromp 2:18f6402fd025 105 * More details about the function goes here
lktromp 2:18f6402fd025 106 * and here
lktromp 2:18f6402fd025 107 *
lktromp 2:18f6402fd025 108 * @param x a variable used by foo
lktromp 2:18f6402fd025 109 * @returns something magical done with x
lktromp 2:18f6402fd025 110 */
lktromp 1:1349bedd5793 111 void charLcd::charLcdReturnHome(){
lktromp 1:1349bedd5793 112 #ifdef DEBUG
lktromp 1:1349bedd5793 113 pc.printf("LCD Home\r\n");
lktromp 1:1349bedd5793 114 #endif //DEBUG
lktromp 1:1349bedd5793 115 charLcdSendCommand(LCD_HOME);
lktromp 1:1349bedd5793 116 }
lktromp 1:1349bedd5793 117
lktromp 2:18f6402fd025 118 /** LCD constructor
lktromp 2:18f6402fd025 119 *
lktromp 2:18f6402fd025 120 * More details about the function goes here
lktromp 2:18f6402fd025 121 * and here
lktromp 2:18f6402fd025 122 *
lktromp 2:18f6402fd025 123 * @param x a variable used by foo
lktromp 2:18f6402fd025 124 * @returns something magical done with x
lktromp 2:18f6402fd025 125 */
lktromp 2:18f6402fd025 126 //void charLcd::charLcdEntryMode(uint8 increment, uint8 shift){
lktromp 2:18f6402fd025 127 void charLcd::charLcdEntryMode(t_charlcd_entry_mode entrymode) {
lktromp 1:1349bedd5793 128 uint8 cmd = LCD_ENTRY_MODE;
lktromp 2:18f6402fd025 129
lktromp 2:18f6402fd025 130 switch(entrymode) {
lktromp 2:18f6402fd025 131 case shift_inc: {cmd |= (LCD_ENTRY_SHIFT | LCD_ENTRY_INC); break;};
lktromp 2:18f6402fd025 132 case shift_dec: {cmd |= (LCD_ENTRY_SHIFT | LCD_ENTRY_DEC );break;};
lktromp 2:18f6402fd025 133 case noshift_inc: {cmd |= (LCD_ENTRY_STAT | LCD_ENTRY_INC); break;};
lktromp 2:18f6402fd025 134 case noshift_dec: {cmd |= (LCD_ENTRY_STAT | LCD_ENTRY_DEC); break;};
lktromp 2:18f6402fd025 135 }
lktromp 2:18f6402fd025 136 /*
lktromp 1:1349bedd5793 137 if (increment == 0x00){
lktromp 1:1349bedd5793 138 cmd |= LCD_ENTRY_DEC;
lktromp 1:1349bedd5793 139 #ifdef DEBUG
lktromp 1:1349bedd5793 140 pc.printf("LCD Entry Mode decrement\r\n");
lktromp 1:1349bedd5793 141 #endif //DEBUG
lktromp 1:1349bedd5793 142 } else {
lktromp 1:1349bedd5793 143 cmd |= LCD_ENTRY_INC;
lktromp 1:1349bedd5793 144 #ifdef DEBUG
lktromp 1:1349bedd5793 145 pc.printf("LCD Entry Mode Increment\r\n");
lktromp 1:1349bedd5793 146 #endif //DEBUG
lktromp 1:1349bedd5793 147 }
lktromp 1:1349bedd5793 148 if (shift == 0x00){
lktromp 2:18f6402fd025 149 cmd |= LCD_ENTRY_STAT;
lktromp 1:1349bedd5793 150 #ifdef DEBUG
lktromp 1:1349bedd5793 151 pc.printf("LCD Entry Mode Static\r\n");
lktromp 2:18f6402fd025 152 #endif //DEBUG
lktromp 2:18f6402fd025 153
lktromp 1:1349bedd5793 154
lktromp 1:1349bedd5793 155 } else {
lktromp 1:1349bedd5793 156 cmd |=LCD_ENTRY_SHIFT;
lktromp 1:1349bedd5793 157 #ifdef DEBUG
lktromp 1:1349bedd5793 158 pc.printf("LCD Entry Mode Shift\r\n");
lktromp 1:1349bedd5793 159 #endif //DEBUG
lktromp 2:18f6402fd025 160 } */
lktromp 1:1349bedd5793 161 charLcdSendCommand(cmd);
lktromp 1:1349bedd5793 162
lktromp 1:1349bedd5793 163 }
lktromp 1:1349bedd5793 164
lktromp 2:18f6402fd025 165 /** LCD constructor
lktromp 2:18f6402fd025 166 *
lktromp 2:18f6402fd025 167 * More details about the function goes here
lktromp 2:18f6402fd025 168 * and here
lktromp 2:18f6402fd025 169 *
lktromp 2:18f6402fd025 170 * @param x a variable used by foo
lktromp 2:18f6402fd025 171 * @returns something magical done with x
lktromp 2:18f6402fd025 172 */
lktromp 1:1349bedd5793 173 void charLcd::charLcdDisplayOn(uint8 on){
lktromp 1:1349bedd5793 174 uint8 cmd = LCD_DISPLAY_CTR;
lktromp 1:1349bedd5793 175 if (on == 0x00){
lktromp 1:1349bedd5793 176 cmd |= LCD_DISP_OFF;
lktromp 1:1349bedd5793 177 #ifdef DEBUG
lktromp 1:1349bedd5793 178 pc.printf("LCD Display Control Display off\r\n");
lktromp 1:1349bedd5793 179 #endif //DEBUG
lktromp 1:1349bedd5793 180 } else {
lktromp 1:1349bedd5793 181 cmd |= LCD_DISP_ON;
lktromp 1:1349bedd5793 182 #ifdef DEBUG
lktromp 1:1349bedd5793 183 pc.printf("LCD Display Control Display on\r\n");
lktromp 1:1349bedd5793 184 #endif //DEBUG
lktromp 1:1349bedd5793 185 }
lktromp 1:1349bedd5793 186 charLcdSendCommand(cmd);
lktromp 1:1349bedd5793 187 }
lktromp 1:1349bedd5793 188
lktromp 2:18f6402fd025 189 /** LCD constructor
lktromp 2:18f6402fd025 190 *
lktromp 2:18f6402fd025 191 * More details about the function goes here
lktromp 2:18f6402fd025 192 * and here
lktromp 2:18f6402fd025 193 *
lktromp 2:18f6402fd025 194 * @param x a variable used by foo
lktromp 2:18f6402fd025 195 * @returns something magical done with x
lktromp 2:18f6402fd025 196 */
lktromp 1:1349bedd5793 197 void charLcd::charLcdCursor(uint8 cursor, uint8 blink){
lktromp 1:1349bedd5793 198 uint8 cmd = LCD_DISPLAY_CTR;
lktromp 1:1349bedd5793 199 if (cursor == 0x00){
lktromp 1:1349bedd5793 200 cmd |= LCD_CURSOR_OFF;
lktromp 1:1349bedd5793 201 #ifdef DEBUG
lktromp 1:1349bedd5793 202 pc.printf("LCD Display Control Cursor off\r\n");
lktromp 1:1349bedd5793 203 #endif //DEBUG
lktromp 1:1349bedd5793 204 } else {
lktromp 1:1349bedd5793 205 cmd |= LCD_CURSOR_ON;
lktromp 1:1349bedd5793 206 #ifdef DEBUG
lktromp 1:1349bedd5793 207 pc.printf("LCD Display Control Cursor on\r\n");
lktromp 1:1349bedd5793 208 #endif //DEBUG
lktromp 1:1349bedd5793 209 }
lktromp 1:1349bedd5793 210 if (blink == 0x00){
lktromp 1:1349bedd5793 211 cmd |= LCD_BLINK_OFF;
lktromp 1:1349bedd5793 212 #ifdef DEBUG
lktromp 1:1349bedd5793 213 pc.printf("LCD Display Control Cursor Blink off\r\n");
lktromp 1:1349bedd5793 214 #endif //DEBUG
lktromp 1:1349bedd5793 215 } else {
lktromp 1:1349bedd5793 216 cmd |=LCD_BLINK_ON;
lktromp 1:1349bedd5793 217 #ifdef DEBUG
lktromp 1:1349bedd5793 218 pc.printf("LCD Display Control Cursor Blink on\r\n");
lktromp 1:1349bedd5793 219 #endif //DEBUG
lktromp 1:1349bedd5793 220 }
lktromp 1:1349bedd5793 221 charLcdSendCommand(cmd);
lktromp 1:1349bedd5793 222 }
lktromp 1:1349bedd5793 223
lktromp 2:18f6402fd025 224 /** LCD constructor
lktromp 2:18f6402fd025 225 *
lktromp 2:18f6402fd025 226 * More details about the function goes here
lktromp 2:18f6402fd025 227 * and here
lktromp 2:18f6402fd025 228 *
lktromp 2:18f6402fd025 229 * @param x a variable used by foo
lktromp 2:18f6402fd025 230 * @returns something magical done with x
lktromp 2:18f6402fd025 231 */
lktromp 1:1349bedd5793 232 void charLcd::charLcdShift(uint8 left, uint8 cursor){
lktromp 1:1349bedd5793 233 uint8 cmd = LCD_SHIFT;
lktromp 1:1349bedd5793 234 if (left == 0x00){
lktromp 1:1349bedd5793 235 cmd |= LCD_SHIFT_LEFT;
lktromp 1:1349bedd5793 236 #ifdef DEBUG
lktromp 1:1349bedd5793 237 pc.printf("LCD Shift Control Shift Left\r\n");
lktromp 1:1349bedd5793 238 #endif //DEBUG
lktromp 1:1349bedd5793 239 } else {
lktromp 1:1349bedd5793 240 cmd |= LCD_SHIFT_RIGHT;
lktromp 1:1349bedd5793 241 #ifdef DEBUG
lktromp 1:1349bedd5793 242 pc.printf("LCD Display Control Shift Right\r\n");
lktromp 1:1349bedd5793 243 #endif //DEBUG
lktromp 1:1349bedd5793 244 }
lktromp 1:1349bedd5793 245 if (cursor == 0x00){
lktromp 1:1349bedd5793 246 cmd |= LCD_SHIFT_DISP;
lktromp 1:1349bedd5793 247 #ifdef DEBUG
lktromp 1:1349bedd5793 248 pc.printf("LCD Display Control Shift Display\r\n");
lktromp 1:1349bedd5793 249 #endif //DEBUG
lktromp 1:1349bedd5793 250 } else {
lktromp 1:1349bedd5793 251 cmd |= LCD_SHIFT_CURS;
lktromp 1:1349bedd5793 252 #ifdef DEBUG
lktromp 1:1349bedd5793 253 pc.printf("LCD Display Control Shift Cursor\r\n");
lktromp 1:1349bedd5793 254 #endif //DEBUG
lktromp 1:1349bedd5793 255 }
lktromp 1:1349bedd5793 256 charLcdSendCommand(cmd);
lktromp 1:1349bedd5793 257 }
lktromp 1:1349bedd5793 258
lktromp 2:18f6402fd025 259 /** LCD constructor
lktromp 2:18f6402fd025 260 *
lktromp 2:18f6402fd025 261 * More details about the function goes here
lktromp 2:18f6402fd025 262 * and here
lktromp 2:18f6402fd025 263 *
lktromp 2:18f6402fd025 264 * @param x a variable used by foo
lktromp 2:18f6402fd025 265 * @returns something magical done with x
lktromp 2:18f6402fd025 266 */
lktromp 1:1349bedd5793 267 void charLcd::charLcdFunctionSet(uint8 dots, uint8 lines, uint8 bits){
lktromp 1:1349bedd5793 268 uint8 cmd = LCD_FUNCTION;
lktromp 1:1349bedd5793 269 if (dots == 0x00){
lktromp 1:1349bedd5793 270 cmd |= LCD_FUNC_5x8;
lktromp 1:1349bedd5793 271 #ifdef DEBUG
lktromp 1:1349bedd5793 272 pc.printf("LCD Display Function Control 5x8\r\n");
lktromp 1:1349bedd5793 273 #endif //DEBUG
lktromp 1:1349bedd5793 274 } else {
lktromp 1:1349bedd5793 275 cmd |= LCD_FUNC_5x10;
lktromp 1:1349bedd5793 276 #ifdef DEBUG
lktromp 1:1349bedd5793 277 pc.printf("LCD Display Function Control 5x10\r\n");
lktromp 1:1349bedd5793 278 #endif //DEBUG
lktromp 1:1349bedd5793 279 }
lktromp 1:1349bedd5793 280 if (lines == 0x00){
lktromp 1:1349bedd5793 281 cmd |= LCD_FUNC_1LINES;
lktromp 1:1349bedd5793 282 #ifdef DEBUG
lktromp 1:1349bedd5793 283 pc.printf("LCD Display Function Control 1 Line\r\n");
lktromp 1:1349bedd5793 284 #endif //DEBUG
lktromp 1:1349bedd5793 285 } else {
lktromp 1:1349bedd5793 286 cmd |= LCD_FUNC_2LINES;
lktromp 1:1349bedd5793 287 #ifdef DEBUG
lktromp 1:1349bedd5793 288 pc.printf("LCD Display Function Control 2 Lines\r\n");
lktromp 1:1349bedd5793 289 #endif //DEBUG
lktromp 1:1349bedd5793 290 }
lktromp 1:1349bedd5793 291 if (bits == 0x00){
lktromp 1:1349bedd5793 292 cmd |= LCD_FUNC_8BIT;
lktromp 1:1349bedd5793 293 #ifdef DEBUG
lktromp 1:1349bedd5793 294 pc.printf("LCD Display Function Control 8 BIT\r\n");
lktromp 1:1349bedd5793 295 #endif //DEBUG
lktromp 1:1349bedd5793 296 } else {
lktromp 1:1349bedd5793 297 cmd |= LCD_FUNC_4BIT;
lktromp 1:1349bedd5793 298 #ifdef DEBUG
lktromp 1:1349bedd5793 299 pc.printf("LCD Display Function Control 4 BIT\r\n");
lktromp 1:1349bedd5793 300 #endif //DEBUG
lktromp 1:1349bedd5793 301 }
lktromp 1:1349bedd5793 302 charLcdSendCommand(cmd);
lktromp 1:1349bedd5793 303 //#define LCD_FUNCTION 0x20
lktromp 1:1349bedd5793 304 //#define LCD_FUNC_5x10 0x04
lktromp 1:1349bedd5793 305 //#define LCD_FUNC_5x8 0x00
lktromp 1:1349bedd5793 306 //#define LCD_FUNC_2LINES 0x08
lktromp 1:1349bedd5793 307 //#define LCD_FUNC_1LINES 0x00
lktromp 1:1349bedd5793 308 //#define LCD_FUNC_8BIT 0x10
lktromp 1:1349bedd5793 309 //#define LCD_FUNC_4BIT 0x00
lktromp 1:1349bedd5793 310 }
lktromp 1:1349bedd5793 311
lktromp 2:18f6402fd025 312 /** LCD constructor
lktromp 2:18f6402fd025 313 *
lktromp 2:18f6402fd025 314 * More details about the function goes here
lktromp 2:18f6402fd025 315 * and here
lktromp 2:18f6402fd025 316 *
lktromp 2:18f6402fd025 317 * @param x a variable used by foo
lktromp 2:18f6402fd025 318 * @returns something magical done with x
lktromp 2:18f6402fd025 319 */
lktromp 1:1349bedd5793 320 void charLcd::charLcdSetCGRAMaddress(uint8 adr) {
lktromp 1:1349bedd5793 321 charLcdSendCommand(LCD_SET_CGRAM & adr);
lktromp 1:1349bedd5793 322 }
lktromp 1:1349bedd5793 323
lktromp 2:18f6402fd025 324 /** LCD constructor
lktromp 2:18f6402fd025 325 *
lktromp 2:18f6402fd025 326 * More details about the function goes here
lktromp 2:18f6402fd025 327 * and here
lktromp 2:18f6402fd025 328 *
lktromp 2:18f6402fd025 329 * @param x a variable used by foo
lktromp 2:18f6402fd025 330 * @returns something magical done with x
lktromp 2:18f6402fd025 331 */
lktromp 1:1349bedd5793 332 void charLcd::charLcdSetDDRAMaddress(uint8 adr) {
lktromp 1:1349bedd5793 333 charLcdSendCommand(LCD_SET_DDRAM & adr);
lktromp 1:1349bedd5793 334 }
lktromp 1:1349bedd5793 335
lktromp 2:18f6402fd025 336 /** LCD constructor
lktromp 2:18f6402fd025 337 *
lktromp 2:18f6402fd025 338 * More details about the function goes here
lktromp 2:18f6402fd025 339 * and here
lktromp 2:18f6402fd025 340 *
lktromp 2:18f6402fd025 341 * @param x a variable used by foo
lktromp 2:18f6402fd025 342 * @returns something magical done with x
lktromp 2:18f6402fd025 343 */
lktromp 1:1349bedd5793 344 uint8 charLcd::charLcdReadBusyFlag() {
lktromp 1:1349bedd5793 345 return 0x00;
lktromp 1:1349bedd5793 346 }
lktromp 1:1349bedd5793 347
lktromp 2:18f6402fd025 348 /** LCD constructor
lktromp 2:18f6402fd025 349 *
lktromp 2:18f6402fd025 350 * More details about the function goes here
lktromp 2:18f6402fd025 351 * and here
lktromp 2:18f6402fd025 352 *
lktromp 2:18f6402fd025 353 * @param x a variable used by foo
lktromp 2:18f6402fd025 354 * @returns something magical done with x
lktromp 2:18f6402fd025 355 */
lktromp 1:1349bedd5793 356 void charLcd::charLcdWriteData(uint8 dat){
lktromp 1:1349bedd5793 357 cl_rs = 1;
lktromp 2:18f6402fd025 358 cl_rw = 1;
lktromp 1:1349bedd5793 359 charLcdWriteByte(dat);
lktromp 1:1349bedd5793 360 }
lktromp 1:1349bedd5793 361
lktromp 2:18f6402fd025 362 /** LCD constructor
lktromp 2:18f6402fd025 363 *
lktromp 2:18f6402fd025 364 * More details about the function goes here
lktromp 2:18f6402fd025 365 * and here
lktromp 2:18f6402fd025 366 *
lktromp 2:18f6402fd025 367 * @param x a variable used by foo
lktromp 2:18f6402fd025 368 * @returns something magical done with x
lktromp 2:18f6402fd025 369 */
lktromp 1:1349bedd5793 370 uint8 charLcd::charLcdReadData(){
lktromp 1:1349bedd5793 371 cl_rs = 0;
lktromp 2:18f6402fd025 372 cl_rw = 0;
lktromp 1:1349bedd5793 373 return 0x00;
lktromp 1:1349bedd5793 374 }
lktromp 2:18f6402fd025 375
lktromp 2:18f6402fd025 376 /** LCD constructor
lktromp 2:18f6402fd025 377 *
lktromp 2:18f6402fd025 378 * More details about the function goes here
lktromp 2:18f6402fd025 379 * and here
lktromp 2:18f6402fd025 380 *
lktromp 2:18f6402fd025 381 * @param x a variable used by foo
lktromp 2:18f6402fd025 382 * @returns something magical done with x
lktromp 2:18f6402fd025 383 */
lktromp 1:1349bedd5793 384 void charLcd::charLcdSendCommand(uint8 cmd) {
lktromp 1:1349bedd5793 385 cl_rs = 0;
lktromp 2:18f6402fd025 386 cl_rw = 0;
lktromp 1:1349bedd5793 387 charLcdWriteByte(cmd);
lktromp 1:1349bedd5793 388 }
lktromp 1:1349bedd5793 389
lktromp 2:18f6402fd025 390 /** LCD constructor
lktromp 2:18f6402fd025 391 *
lktromp 2:18f6402fd025 392 * More details about the function goes here
lktromp 2:18f6402fd025 393 * and here
lktromp 2:18f6402fd025 394 *
lktromp 2:18f6402fd025 395 * @param x a variable used by foo
lktromp 2:18f6402fd025 396 * @returns something magical done with x
lktromp 2:18f6402fd025 397 */
lktromp 1:1349bedd5793 398 void charLcd::charLcdWriteByte(uint8 byte) {
lktromp 1:1349bedd5793 399 cl_charLcdData = byte;
lktromp 1:1349bedd5793 400 pc.printf("Write %#X to LCD\r\n", byte);
lktromp 2:18f6402fd025 401 wait_us(500); // setup time
lktromp 1:1349bedd5793 402 cl_en = 0;
lktromp 2:18f6402fd025 403 wait_us(500); //hold time
lktromp 1:1349bedd5793 404 cl_en = 1;
lktromp 1:1349bedd5793 405 }