PIC18 LaurTec Library
3.3.1
Open Source C Library for PIC18 Microcontrollers based on C18 - XC8 Compilers
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Go to the source code of this file.
Functions | |
void | LCD_enable_pulse (void) |
void | LCD_send_command (unsigned char bit_3, unsigned char bit_2, unsigned char bit_1, unsigned char bit_0) |
void | LCD_home (void) |
void | LCD_shift (unsigned char shift, unsigned char number_of_shift) |
void | LCD_shift_cursor (unsigned char shift, unsigned char number_of_shift) |
void | LCD_goto_line (unsigned char line) |
void | LCD_goto_xy (unsigned char x, unsigned char y) |
void | LCD_write_char (unsigned char value) |
void | LCD_write_message (const rom unsigned char *buffer) |
void | LCD_write_string (unsigned char *buffer) |
void | LCD_write_integer (int value, unsigned char number_of_digits, unsigned char zero_cleaning) |
void | LCD_clear (void) |
void | LCD_cursor (unsigned char active, unsigned char blinking) |
void | LCD_backlight (unsigned char active) |
void | LCD_initialize (unsigned char quartz_frequency) |
#define backlight_LCD LCD_backlight |
Definition at line 358 of file LCD_44780.h.
#define BacklightLCD LCD_backlight |
Definition at line 357 of file LCD_44780.h.
#define BLINKING_OFF 0 |
Definition at line 147 of file LCD_44780.h.
#define BLINKING_ON 1 |
Definition at line 146 of file LCD_44780.h.
#define clear_LCD LCD_clear |
Definition at line 327 of file LCD_44780.h.
#define ClearLCD LCD_clear |
Definition at line 326 of file LCD_44780.h.
#define cursor_LCD LCD_cursor |
Definition at line 343 of file LCD_44780.h.
#define CursorLCD LCD_cursor |
Definition at line 342 of file LCD_44780.h.
#define enable_pulse_LCD LCD_enable_pulse |
Definition at line 167 of file LCD_44780.h.
#define Epulse LCD_enable_pulse |
Definition at line 166 of file LCD_44780.h.
#define goto_line_LCD LCD_goto_line |
Definition at line 238 of file LCD_44780.h.
#define goto_xy_LCD LCD_goto_xy |
Definition at line 252 of file LCD_44780.h.
#define GotoLineLCD LCD_goto_line |
Definition at line 237 of file LCD_44780.h.
#define home_LCD LCD_home |
Definition at line 195 of file LCD_44780.h.
#define HomeLCD LCD_home |
Definition at line 194 of file LCD_44780.h.
#define initialize_LCD LCD_initialize |
Definition at line 372 of file LCD_44780.h.
#define LCD_BLINKING_OFF 0 |
Definition at line 149 of file LCD_44780.h.
#define LCD_BLINKING_ON 1 |
Definition at line 148 of file LCD_44780.h.
#define LCD_D0 PORTDbits.RD4 |
This value are used as default ones
Definition at line 111 of file LCD_44780.h.
#define LCD_D1 PORTDbits.RD5 |
Definition at line 112 of file LCD_44780.h.
#define LCD_D2 PORTDbits.RD6 |
Definition at line 113 of file LCD_44780.h.
#define LCD_D3 PORTDbits.RD7 |
Definition at line 114 of file LCD_44780.h.
#define LCD_E PORTDbits.RD3 |
Definition at line 116 of file LCD_44780.h.
#define LCD_LED PORTCbits.RC1 |
Definition at line 118 of file LCD_44780.h.
#define LCD_LEFT 0 |
Definition at line 129 of file LCD_44780.h.
#define LCD_RIGHT 1 |
Definition at line 130 of file LCD_44780.h.
#define LCD_RS PORTDbits.RD2 |
Definition at line 115 of file LCD_44780.h.
#define LCD_RW PORTDbits.RD1 |
Definition at line 117 of file LCD_44780.h.
#define LCD_TURN_OFF_CURSOR 0 |
Definition at line 144 of file LCD_44780.h.
#define LCD_TURN_OFF_LED 0 |
Definition at line 138 of file LCD_44780.h.
#define LCD_TURN_OFF_LED 0 |
Definition at line 138 of file LCD_44780.h.
#define LCD_TURN_ON_CURSOR 1 |
Definition at line 143 of file LCD_44780.h.
#define LCD_TURN_ON_LED 1 |
Definition at line 137 of file LCD_44780.h.
#define LCD_TURN_ON_LED 1 |
Definition at line 137 of file LCD_44780.h.
#define LCD_ZERO_CLEANING_OFF 0x00 |
Definition at line 154 of file LCD_44780.h.
#define LCD_ZERO_CLEANING_ON 0x01 |
Definition at line 153 of file LCD_44780.h.
#define LEFT 0 |
Definition at line 127 of file LCD_44780.h.
#define OpenLCD LCD_initialize |
Definition at line 371 of file LCD_44780.h.
#define RIGHT 1 |
Definition at line 128 of file LCD_44780.h.
#define send_command_LCD LCD_send_command |
Definition at line 186 of file LCD_44780.h.
#define SendCommand LCD_send_command |
Definition at line 185 of file LCD_44780.h.
#define shift_cursor_LCD LCD_shift_cursor |
Definition at line 226 of file LCD_44780.h.
#define shift_LCD LCD_shift |
Definition at line 210 of file LCD_44780.h.
#define ShiftCursorLCD LCD_shift_cursor |
Definition at line 225 of file LCD_44780.h.
#define ShiftLCD LCD_shift |
Definition at line 209 of file LCD_44780.h.
#define TURN_OFF_CURSOR 0 |
Definition at line 142 of file LCD_44780.h.
#define TURN_OFF_LED_LCD 0 |
Definition at line 133 of file LCD_44780.h.
#define TURN_ON_CURSOR 1 |
Definition at line 141 of file LCD_44780.h.
#define TURN_ON_LED_LCD 1 |
Definition at line 132 of file LCD_44780.h.
#define write_char_LCD LCD_write_char |
Definition at line 264 of file LCD_44780.h.
#define write_integer_LCD LCD_write_integer |
Definition at line 318 of file LCD_44780.h.
#define write_message_LCD LCD_write_message |
Definition at line 285 of file LCD_44780.h.
#define write_string_LCD LCD_write_string |
Definition at line 298 of file LCD_44780.h.
#define WriteCharLCD LCD_write_char |
Definition at line 263 of file LCD_44780.h.
#define WriteIntLCD LCD_write_integer |
Definition at line 317 of file LCD_44780.h.
#define WriteStringLCD LCD_write_message |
Definition at line 284 of file LCD_44780.h.
#define WriteVarLCD LCD_write_string |
Definition at line 297 of file LCD_44780.h.
#define ZERO_CLEANING_OFF 0x00 |
Definition at line 152 of file LCD_44780.h.
#define ZERO_CLEANING_ON 0x01 |
Definition at line 151 of file LCD_44780.h.
void LCD_backlight | ( | unsigned char | active | ) |
This function controls the backligth LED.
active | Activate the LED backlight [LCD_TURN_ON_LED, LCD_TURN_OFF_LED] |
blinking | Let the cursor blink [LCD_BLINKING_ON, LCD_BLINKING_OFF] |
Definition at line 275 of file LCD_44780.c.
void LCD_clear | ( | void | ) |
This Function cleans the LCD display.
Definition at line 257 of file LCD_44780.c.
void LCD_cursor | ( | unsigned char | active, |
unsigned char | blinking | ||
) |
This function controls the cursor option (blinking, active)
active | Activate the cursor, showing it or not [LCD_TURN_ON_CURSOR, LCD_TURN_OFF_CURSOR] |
blinking | Let the cursor blink [LCD_BLINKING_ON, LCD_BLINKING_OFF] |
Definition at line 266 of file LCD_44780.c.
void LCD_enable_pulse | ( | void | ) |
This function generates the Enable pulse.
Definition at line 49 of file LCD_44780.c.
void LCD_goto_line | ( | unsigned char | line | ) |
This function locates the LCD cursor on the selected line.
line | Specify the number of the line [1,2,3,4] |
Definition at line 111 of file LCD_44780.c.
References LCD_send_command().
void LCD_goto_xy | ( | unsigned char | x, |
unsigned char | y | ||
) |
This function locates the LCD cursor to an arbitrary X Y location. Y represents the line number from top.
x | It Specifies horizontal position |
y | It Specifies vertical position (line number) |
Definition at line 136 of file LCD_44780.c.
References LCD_goto_line(), LCD_shift_cursor(), and RIGHT.
void LCD_home | ( | void | ) |
This function locates the cursor at home location. First line first character.
Definition at line 74 of file LCD_44780.c.
void LCD_initialize | ( | unsigned char | quartz_frequency | ) |
This function initializes the LCD to work in 4 bit modality.
quartz_frequency | Quartz freq. expressed in MHz used to run the CPU. |
Definition at line 283 of file LCD_44780.c.
void LCD_send_command | ( | unsigned char | bit_3, |
unsigned char | bit_2, | ||
unsigned char | bit_1, | ||
unsigned char | bit_0 | ||
) |
This function generates the Enable pulse.
bit_0 | bit 0 of the data bus (4 bit modality) |
bit_1 | bit 1 of the data bus (4 bit modality) |
bit_2 | bit 2 of the data bus (4 bit modality) |
bit_3 | bit 3 of the data bus (4 bit modality) |
Definition at line 61 of file LCD_44780.c.
References LCD_D0, LCD_D1, LCD_D2, LCD_D3, and LCD_enable_pulse().
void LCD_shift | ( | unsigned char | shift, |
unsigned char | number_of_shift | ||
) |
This function shifts the LCD screen on the left or right.
shift | Specify where the shift should be [LCD_LEFT, LCD_RIGHT]. |
number_of_shift | Specify the number of times the shift is executed. |
Definition at line 84 of file LCD_44780.c.
void LCD_shift_cursor | ( | unsigned char | shift, |
unsigned char | number_of_shift | ||
) |
This function shifts the LCD cursor on the left or right. The position of the cursor is where the next writing will be performed.
shift | Specify where the shift should be [LCD_LEFT, LCD_RIGHT]. |
number_of_shift | Specify the number of times the shift is executed. |
Definition at line 98 of file LCD_44780.c.
void LCD_write_char | ( | unsigned char | value | ) |
This function writes a char to the LCD display. (e.g LCD_write_char ('a'); )
value | Specify the character to be sent [0-128 ASCII code]. |
Definition at line 145 of file LCD_44780.c.
void LCD_write_integer | ( | int | value, |
unsigned char | number_of_digits, | ||
unsigned char | zero_cleaning | ||
) |
This function writes an integer to the LCD display. The integer is converted to string.
value | It is integer that must be written to the LCD display. |
numeber_of_digits | It specifies the number of shown digit [0-5]. 0: Left Justified 1-5: Right Justified with n digit |
zero_cleaning | It specifies whether the left zero must be removed [LCD_ZERO_CLEANING_ON, LCD_ZERO_CLEANING_OFF]. |
void LCD_write_message | ( | const rom unsigned char * | buffer | ) |
This function writes a const string to the LCD display, e.g LCD_write_message("Hello"); .
buffer | Is a const string written in rom (is not an array). |
Definition at line 174 of file LCD_44780.c.
void LCD_write_string | ( | unsigned char * | buffer | ) |
This function writes an array of char to the LCD display, terminated with /0 .
buffer | It is an array of char terminated with /0 . |
Definition at line 194 of file LCD_44780.c.