Subversion Repositories group.electronics

Rev

Rev 55 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 55 Rev 58
Line 1... Line 1...
1 
#include <avr/io.h>
 1 
#include <avr/io.h>
2 
#include <stdlib.h>
 2 
#include <stdlib.h>
3 
#include "wire.h"
 3 
#include "wire.h"
4 
#include "lcd.h"
 4 
#include "lcd.h"
5 
#include "petelib.h"
 5 
#include "util.h"
6 
#include <util/delay.h>
 6 
#include <util/delay.h>
7 
 
 7 
 
8 
void lcd_init() {
 8 
void lcd_init() {
9 
	lcd.backlight = LCD_BACKLIGHT;
 9 
	lcd.backlight = LCD_BACKLIGHT;
10 
	lcd.display = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF;
 10 
	lcd.display = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF;
Line 73... Line 73...
73 
}
 73 
}
74 
 
 74 
 
75 
void lcd_overprint_right(char *str, uint8_t len, uint8_t col, uint8_t row) {
 75 
void lcd_overprint_right(char *str, uint8_t len, uint8_t col, uint8_t row) {
76 
	uint8_t c = 1;
 76 
	uint8_t c = 1;
77 
	char* oldstr = str;
 77 
	char* oldstr = str;
78 
        while ((++str)[0] != 0x00)
 78 
	while ((++str)[0] != 0x00)
79 
                c++;
 79 
		c++;
80 
 
 80 
 
81 
	lcd_setCursor(col+1, row);
 81 
	lcd_setCursor(col+1, row);
82 
	uint8_t i = 0;
 82 
	uint8_t i = 0;
83 
	for (i = 0; i<(len-c); i++)
83 
	for (i = 0; i<(len-c); i++)
84 
		lcd_char(0x20);
 84 
		lcd_char(0x20);
Line 86... Line 86...
86 
	for (i = 0; i<c; i++)
86 
	for (i = 0; i<c; i++)
87 
		lcd_char(oldstr[i]);
 87 
		lcd_char(oldstr[i]);
88 
}
 88 
}
89 
 
 89 
 
90 
uint8_t lcd_print(char* str) {
 90 
uint8_t lcd_print(char* str) {
91 
        uint8_t c = 0;
 91 
	uint8_t c = 0;
92 
        while ((str++)[0] != 0x00) {
 92 
	while ((str++)[0] != 0x00) {
93 
                lcd_char((uint8_t) (str-1)[0]);
 93 
		lcd_char((uint8_t) (str-1)[0]);
94 
                c++;
 94 
		c++;
95 
        }
 95 
	}
96 
        return c;
 96 
	return c;
97 
}
 97 
}
98 
 
 98 
 
99 
void lcd_overprint(char * str, uint8_t len, uint8_t col, uint8_t row) {
 99 
void lcd_overprint(char * str, uint8_t len, uint8_t col, uint8_t row) {
100 
        uint8_t i = 0;
 100 
	uint8_t i = 0;
101 
        lcd_setCursor(col, row);
 101 
	lcd_setCursor(col, row);
102 
 
 102 
 
103 
        uint8_t size = lcd_print(str);
 103 
	uint8_t size = lcd_print(str);
104 
        for (i=size; i<=len; i++)
 104 
	for (i=size; i<=len; i++)
105 
                lcd_char(0x20);
 105 
		lcd_char(0x20);
106 
}
 106 
}
107 
 
 107 
 
108 
 
 108 
 
109 
/************************/
 109 
/************************/
110 
/** Helper functions **/
 110 
/** Helper functions **/
Line 135... Line 135...
135 
	lcd.display &= ~LCD_DISPLAYON;
 135 
	lcd.display &= ~LCD_DISPLAYON;
136 
	lcd_command(LCD_DISPLAYCONTROL | lcd.display);
 136 
	lcd_command(LCD_DISPLAYCONTROL | lcd.display);
137 
}
 137 
}
138 
 
 138 
 
139 
void lcd_autocursorLeft(void) {
 139 
void lcd_autocursorLeft(void) {
140 
        lcd.display |= LCD_ENTRYLEFT;
 140 
	lcd.display |= LCD_ENTRYLEFT;
141 
        lcd_command(LCD_ENTRYMODESET | lcd.display);
 141 
	lcd_command(LCD_ENTRYMODESET | lcd.display);
142 
}
 142 
}
143 
 
 143 
 
144 
void lcd_autocursorRight(void) {
 144 
void lcd_autocursorRight(void) {
145 
        lcd.display &= ~LCD_ENTRYLEFT;
 145 
	lcd.display &= ~LCD_ENTRYLEFT;
146 
        lcd_command(LCD_ENTRYMODESET | lcd.display);
 146 
	lcd_command(LCD_ENTRYMODESET | lcd.display);
147 
}
 147 
}
148 
 
 148 
 
149 
void lcd_autoscroll() {
 149 
void lcd_autoscroll() {
150 
        lcd.display |= LCD_ENTRYSHIFTINCREMENT;
 150 
	lcd.display |= LCD_ENTRYSHIFTINCREMENT;
151 
        lcd_command(LCD_ENTRYMODESET | lcd.display);
 151 
	lcd_command(LCD_ENTRYMODESET | lcd.display);
152 
}
 152 
}
153 
 
 153 
 
154 
void lcd_noAutoscroll() {
 154 
void lcd_noAutoscroll() {
155 
        lcd.display &= ~LCD_ENTRYSHIFTINCREMENT;
 155 
	lcd.display &= ~LCD_ENTRYSHIFTINCREMENT;
156 
        lcd_command(LCD_ENTRYMODESET | lcd.display);
 156 
	lcd_command(LCD_ENTRYMODESET | lcd.display);
157 
}
 157 
}
158 
 
 158 
 
159 
void lcd_setCursor(uint8_t col, uint8_t row) {
 159 
void lcd_setCursor(uint8_t col, uint8_t row) {
160 
	uint8_t row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
 160 
	uint8_t row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
161 
	lcd_command(LCD_SETDDRAMADDR | ((col - 1)+ row_offsets[row]));
 161 
	lcd_command(LCD_SETDDRAMADDR | ((col - 1)+ row_offsets[row]));
Line 187... Line 187...
187 
	i2c_endTransmission(1);
 187 
	i2c_endTransmission(1);
188 
	_delay_us(5);
 188 
	_delay_us(5);
189 
}
 189 
}
190 
 
 190 
 
191 
void lcd_createChar(uint8_t location, uint8_t charmap[]) {
 191 
void lcd_createChar(uint8_t location, uint8_t charmap[]) {
192 
        location &= 0x7; // we only have 8 locations 0-7
 192 
	location &= 0x7; // we only have 8 locations 0-7
193 
        lcd_command(LCD_SETCGRAMADDR | (location << 3));
 193 
	lcd_command(LCD_SETCGRAMADDR | (location << 3));
194 
	uint8_t i = 0;
 194 
	uint8_t i = 0;
195 
        for (i=0; i<8; i++) {
 195 
	for (i=0; i<8; i++) {
196 
                lcd_char(charmap[i]);
 196 
		lcd_char(charmap[i]);
197 
        }
 197 
	}
198 
}
 198 
}