E3 Designers / LCD

Baseline for testing

LCD.h@1:0f1dffc6103a, 2019-09-12 (annotated)

Committer:
foxbrianr
Date:
Thu Sep 12 11:27:29 2019 +0000
Revision:
1:0f1dffc6103a
Parent:
0:c428f1d60316
Child:
2:73721d9e0056
beta1;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
foxbrianr 0:c428f1d60316 1
foxbrianr 0:c428f1d60316 2 #ifndef _LCD_
foxbrianr 0:c428f1d60316 3 #define _LCD_
foxbrianr 0:c428f1d60316 4
foxbrianr 0:c428f1d60316 5 #include "mbed.h"
foxbrianr 0:c428f1d60316 6
foxbrianr 0:c428f1d60316 7 /*
foxbrianr 0:c428f1d60316 8 * LCD commands.
foxbrianr 0:c428f1d60316 9 */
foxbrianr 0:c428f1d60316 10 // Clear display:
foxbrianr 0:c428f1d60316 11 #define LCD_CLEAR (1 << 0)
foxbrianr 0:c428f1d60316 12
foxbrianr 0:c428f1d60316 13 // return cursor and LCD to home position:
foxbrianr 0:c428f1d60316 14 #define LCD_HOME (1 << 1)
foxbrianr 0:c428f1d60316 15
foxbrianr 0:c428f1d60316 16 // set cursor move direction:
foxbrianr 0:c428f1d60316 17 #define LCD_MOVEDIR (1 << 2)
foxbrianr 0:c428f1d60316 18 // shift display when byte written to display
foxbrianr 0:c428f1d60316 19 #define LCD_MOVEDIR_SHIFT (1 << 0)
foxbrianr 0:c428f1d60316 20 // increment the cursor after each byte written:
foxbrianr 0:c428f1d60316 21 #define LCD_MOVEDIR_ID (1 << 1)
foxbrianr 0:c428f1d60316 22
foxbrianr 0:c428f1d60316 23 // Enable display/cursor:
foxbrianr 0:c428f1d60316 24 #define LCD_DISPEN (1 << 3)
foxbrianr 0:c428f1d60316 25 // turn cursor blink on:
foxbrianr 0:c428f1d60316 26 #define LCD_DISPEN_BLINK (1 << 0)
foxbrianr 0:c428f1d60316 27 // turn cursor on:
foxbrianr 0:c428f1d60316 28 #define LCD_DISPEN_CURSOR (1 << 1)
foxbrianr 0:c428f1d60316 29 // turn display on:
foxbrianr 0:c428f1d60316 30 #define LCD_DISPEN_DISP (1 << 2)
foxbrianr 0:c428f1d60316 31
foxbrianr 0:c428f1d60316 32 // move cursor/shift display:
foxbrianr 0:c428f1d60316 33 #define LCD_MCSD (1 << 4)
foxbrianr 0:c428f1d60316 34 // direction of shift (right if set):
foxbrianr 0:c428f1d60316 35 #define LCD_MCSD_RL (1 << 2)
foxbrianr 0:c428f1d60316 36 // turn on display shift:
foxbrianr 0:c428f1d60316 37 #define LCD_MCSD_SC (1 << 3)
foxbrianr 0:c428f1d60316 38
foxbrianr 0:c428f1d60316 39 // set interface length:
foxbrianr 0:c428f1d60316 40 #define LCD_SETIFLEN (1 << 5)
foxbrianr 0:c428f1d60316 41 // set character font 5x10 (1) or 5x7 (0)
foxbrianr 0:c428f1d60316 42 #define LCD_SETIFLEN_F (1 << 2)
foxbrianr 0:c428f1d60316 43 // set # of display lines 1 if 0, 2 if 1:
foxbrianr 0:c428f1d60316 44 #define LCD_SETIFLEN_N (1 << 3)
foxbrianr 0:c428f1d60316 45 // set interface length 8 bits if 1, 4 bits if 0
foxbrianr 0:c428f1d60316 46 #define LCD_SETIFLEN_DL (1 << 4)
foxbrianr 0:c428f1d60316 47
foxbrianr 0:c428f1d60316 48 // move cursor into CGRAM:
foxbrianr 0:c428f1d60316 49 #define LCD_MOVERAM (1 << 6)
foxbrianr 0:c428f1d60316 50
foxbrianr 0:c428f1d60316 51 // Move cursor to display:
foxbrianr 0:c428f1d60316 52 #define LCD_MOVEDISPLAY (1 << 7)
foxbrianr 0:c428f1d60316 53 #define LCD_DATAREAD 0x00
foxbrianr 0:c428f1d60316 54 #define LCD_DATAWRITE 0xFF
foxbrianr 0:c428f1d60316 55 #define LCD_READ 1
foxbrianr 0:c428f1d60316 56 #define LCD_WRITE 0
foxbrianr 0:c428f1d60316 57 #define LCD_HIGH 1
foxbrianr 0:c428f1d60316 58 #define LCD_LOW 0
foxbrianr 0:c428f1d60316 59
foxbrianr 0:c428f1d60316 60 #define LCD_RS_COMMANDREGISTERS 0
foxbrianr 0:c428f1d60316 61 #define LCD_RS_DATAREGISTERS 1
foxbrianr 0:c428f1d60316 62
foxbrianr 0:c428f1d60316 63 #define LCD_wakeUp 0x30 //
foxbrianr 0:c428f1d60316 64 #define LCD_functionSet 0x28 // Sets the interface data type to 4 bits, 2 lines, and font size 5x8. 0x28 = 0010 1000
foxbrianr 0:c428f1d60316 65 #define LCD_returnHome 0x02 // Sets the cursor to the beginning of the screen. 0x02 = 0000 0010
foxbrianr 0:c428f1d60316 66 #define LCD_setCursor 0x10 // Sets cursor moving and display shift, and direction without changing DDRAM data. 0x10 = 0001 0000
foxbrianr 0:c428f1d60316 67 #define LCD_setDisplayOn 0x0C // Sets Entire Display on, Display on, Cursor on. 0x0C = 0000 1011
foxbrianr 0:c428f1d60316 68 #define LCD_setDisplayEdit 0x0E // Sets Entire Display on, Display on, Cursor on. 0x0C = 0000 1011
foxbrianr 0:c428f1d60316 69 #define LCD_setDisplayBlink 0x0F// Sets Entire Display on, Display on, Cursor on. 0x0C = 0000 1011
foxbrianr 0:c428f1d60316 70 #define LCD_setDisplayOff 0x08 // Sets Entire Display off, Display on, Cursor on. 0x0C = 0000 1000
foxbrianr 0:c428f1d60316 71 #define LCD_entryModeSet 0x06 // Sets Entry Mode. 0x06 = 0000 0110
foxbrianr 0:c428f1d60316 72 #define LCD_cursorModeSet 0x06 // Sets Entry Mode. 0x06 = 0000 0110
foxbrianr 0:c428f1d60316 73 #define LCD_clearDisplay 0x01 // Resets the whole display to blank
foxbrianr 0:c428f1d60316 74
foxbrianr 0:c428f1d60316 75
foxbrianr 0:c428f1d60316 76
foxbrianr 0:c428f1d60316 77 class LCD
foxbrianr 0:c428f1d60316 78 {
foxbrianr 1:0f1dffc6103a 79 public:
foxbrianr 1:0f1dffc6103a 80
foxbrianr 1:0f1dffc6103a 81 LCD();
foxbrianr 0:c428f1d60316 82
foxbrianr 1:0f1dffc6103a 83 virtual ~LCD();
foxbrianr 1:0f1dffc6103a 84
foxbrianr 1:0f1dffc6103a 85 void init(void) ;
foxbrianr 1:0f1dffc6103a 86
foxbrianr 1:0f1dffc6103a 87 void display(char *show);
foxbrianr 1:0f1dffc6103a 88
foxbrianr 1:0f1dffc6103a 89 void cls();
foxbrianr 1:0f1dffc6103a 90
foxbrianr 1:0f1dffc6103a 91 void locate(int row, int column);
foxbrianr 1:0f1dffc6103a 92
foxbrianr 1:0f1dffc6103a 93 void putc(const char c);
foxbrianr 1:0f1dffc6103a 94
foxbrianr 1:0f1dffc6103a 95 void printf(const char* fmt, ...);
foxbrianr 1:0f1dffc6103a 96
foxbrianr 1:0f1dffc6103a 97 int rows()
foxbrianr 1:0f1dffc6103a 98 {
foxbrianr 1:0f1dffc6103a 99 return 4;
foxbrianr 1:0f1dffc6103a 100 }
foxbrianr 1:0f1dffc6103a 101
foxbrianr 1:0f1dffc6103a 102 int columns()
foxbrianr 1:0f1dffc6103a 103 {
foxbrianr 1:0f1dffc6103a 104 return 40;
foxbrianr 1:0f1dffc6103a 105 }
foxbrianr 1:0f1dffc6103a 106
foxbrianr 1:0f1dffc6103a 107 private:
foxbrianr 1:0f1dffc6103a 108 void setCursorMode (int mode);
foxbrianr 1:0f1dffc6103a 109
foxbrianr 1:0f1dffc6103a 110 void clear(int e1,int e2);
foxbrianr 1:0f1dffc6103a 111
foxbrianr 1:0f1dffc6103a 112 void writeByte1(int value);
foxbrianr 1:0f1dffc6103a 113 void writeByte2(int value);
foxbrianr 1:0f1dffc6103a 114
foxbrianr 1:0f1dffc6103a 115 void command1(char i) ;
foxbrianr 1:0f1dffc6103a 116 void command2(char i) ;
foxbrianr 1:0f1dffc6103a 117
foxbrianr 1:0f1dffc6103a 118 void writedata1(char i) ;
foxbrianr 1:0f1dffc6103a 119 void writedata2(char i) ;
foxbrianr 1:0f1dffc6103a 120
foxbrianr 1:0f1dffc6103a 121 void nextline1();
foxbrianr 1:0f1dffc6103a 122 void nextline2();
foxbrianr 1:0f1dffc6103a 123
foxbrianr 1:0f1dffc6103a 124 int isBusy(int e1,int e2);
foxbrianr 1:0f1dffc6103a 125
foxbrianr 1:0f1dffc6103a 126 int isBusy1(void);
foxbrianr 1:0f1dffc6103a 127 int isBusy2(void);
foxbrianr 1:0f1dffc6103a 128
foxbrianr 1:0f1dffc6103a 129 void waitBusy();
foxbrianr 1:0f1dffc6103a 130
foxbrianr 1:0f1dffc6103a 131 void write(const char* text);
foxbrianr 1:0f1dffc6103a 132 void writeLine(int line, const char* text );
foxbrianr 1:0f1dffc6103a 133 void writeCharacter(const char c, int row, int column);
foxbrianr 1:0f1dffc6103a 134 void writeCharacters(const char* text, int row, int column);
foxbrianr 1:0f1dffc6103a 135
foxbrianr 1:0f1dffc6103a 136 void writeCommand(char value,int e1,int e2);
foxbrianr 1:0f1dffc6103a 137 void writeChar (char value,int e1,int e2);
foxbrianr 1:0f1dffc6103a 138 void writeData (char value,int e1,int e2);
foxbrianr 1:0f1dffc6103a 139
foxbrianr 1:0f1dffc6103a 140 int address(int row, int column);
foxbrianr 1:0f1dffc6103a 141
foxbrianr 1:0f1dffc6103a 142 void character (int row, int column, char c);
foxbrianr 1:0f1dffc6103a 143
foxbrianr 1:0f1dffc6103a 144 DigitalInOut LCD_E1;
foxbrianr 1:0f1dffc6103a 145 DigitalInOut LCD_E2;
foxbrianr 1:0f1dffc6103a 146 DigitalInOut LCD_RS;
foxbrianr 1:0f1dffc6103a 147 DigitalInOut LCD_RW;
foxbrianr 1:0f1dffc6103a 148
foxbrianr 1:0f1dffc6103a 149 BusInOut LCD_DATA;
foxbrianr 1:0f1dffc6103a 150
foxbrianr 1:0f1dffc6103a 151 Mutex mutex;
foxbrianr 1:0f1dffc6103a 152
foxbrianr 1:0f1dffc6103a 153 int _row;
foxbrianr 1:0f1dffc6103a 154 int _column;
foxbrianr 1:0f1dffc6103a 155 char isOutput;
foxbrianr 0:c428f1d60316 156
foxbrianr 0:c428f1d60316 157 };
foxbrianr 0:c428f1d60316 158
foxbrianr 0:c428f1d60316 159 #endif