-
Notifications
You must be signed in to change notification settings - Fork 0
/
LCD_HD44780.c
207 lines (179 loc) · 3.81 KB
/
LCD_HD44780.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
// Áèáëèîòåêà äëÿ ðàáîòû ñ LCD HD44780 äèñïîååì
#include "LCD_HD44780.h"
/////////////////////////////////////////
void LCD_init()
{
_delay_ms(40);//
DDR_DATA |= 0xF0;//ïîðòû íà
PORT_DATA |= 0xF0;//âûõîä
DDR_SIG |= (ON<<E)|(ON<<RW)|(ON<<RS);//óïðàâëÿþùèå ïîðòû
PORT_SIG |= (ON<<E)|(ON<<RS);//íà âûõîä
PORT_SIG &= ~(ON<<RW);//ïîðò ÷òåíèÿ/çàïèñè íà íà çàïèñü
_delay_ms(40);
LCD_write(BUS_LINE,RS_COM);//2 ëèíèè äàííûõ, 4 áèòà øèíà
LCD_write(BUS_LINE,RS_COM);
LCD_write(BUS_LINE,RS_COM);
LCD_write(BUS_LINE,RS_COM);
LCD_write(0x01,RS_COM);//î÷èñòêà ýêðàíà
LCD_write(0x06,RS_COM);//èíêðåìåíò àäðåñà ýêðàí íå äâèæåòñÿ
LCD_write(0x0C,RS_COM);//âêëþ÷èòü äèñïëåé
}
void LCD_write(uint8_t data, uint8_t BIT_RS)
{
_delay_ms(40);
// LCD_read_BF();
DDR_DATA |= 0xF0;//ïîðò äàííûõ
PORT_DATA |= 0xF0;//íà âûõîä
PORT_SIG &= ~(ON<<RW);
if(BIT_RS == RS_COM)// åñëè 0
{
PORT_SIG &= ~(ON<<RS);//òî Êîìàíäà
}
else PORT_SIG|= (ON<<RS);// èíà÷å 1 òî äàííûå
uint8_t tmp = data;//ñîõðîíèëè äàííûå âî âðåìåííîì
uint8_t temp = PORT_DATA & 0x0F;//
temp |= (data &0xF0);// îáðåçàëè ìëàäùóþ òåòðàäó äàííûõ
PORT_DATA = temp;//âûñòâàëè òåòðàäó â ïîðò
PORT_SIG|= (ON<<E);//ñòðîá ââåðõ
_delay_ms(2);
PORT_SIG &= ~(ON<<E);//ñòðîá âíèç ñòàðøàÿ òåòðàäà íà äèñïëåé
temp = PORT_DATA & 0x0F;
temp|= (tmp<<4);// îáðåçàëè ñòàðøóþ òåòðàäó
PORT_DATA = temp;//âûñòàâèëè ìëàäøóþ òåòðàäó â ïîðò
PORT_SIG|= (ON<<E);//ñòðîá ââåðõ
_delay_ms(2);
PORT_SIG &= ~(ON<<E);//ñòðîá âíèç ìëàäøàÿ òåòðàäà óøëà íà äèñïëåé
// _delay_ms(40);
}
void LCD_write_adress(uint8_t data, uint8_t adress)
{
_delay_ms(40);
// LCD_read_BF();
LCD_write(adress, RS_COM);
DDR_DATA |= 0xF0;
PORT_DATA |= 0xF0;
PORT_SIG &= ~(ON<<RW);
PORT_SIG|= (ON<<RS);// èíà÷å 1 òî äàííûå
uint8_t tmp = data;
uint8_t temp = PORT_DATA & 0x0F;
temp |= (data &0xF0);
PORT_DATA = temp;
PORT_SIG|= (ON<<E);
_delay_ms(2);
PORT_SIG &= ~(ON<<E);
temp = PORT_DATA & 0x0F;
temp|= (tmp<<4);
PORT_DATA = temp;
PORT_SIG|= (ON<<E);
_delay_ms(2);
PORT_SIG &= ~(ON<<E);
_delay_ms(40);
}
void LCD_write_str(int8_t *string)
{
while(*string)
{
LCD_write(*string,RS_DATA);
string++;
}
}
void line_wrapping(int8_t number)
{
if(number == 1)
{
LCD_write(FIRS_LINE,RS_COM);
}
else
LCD_write(SEC_LINE,RS_COM);
}
void clean_display()
{
LCD_write(0x01,RS_COM);
}
void kursor_adress(uint8_t adress)
{
LCD_write(adress, RS_COM);
}
void LCD_alignment(int16_t str, uint8_t adress)
{
uint8_t buffer[] = {' ',' ',' ',' '};
itoa(str, buffer, 10);
if (str < 0)
{
if (str > (-10))
{
kursor_adress(adress);
LCD_write_str(buffer);
LCD_write_str(" ");
}
else if (str > (-100))
{
kursor_adress(adress);
LCD_write_str(buffer);
LCD_write_str(" ");
}
else if (str >(-1000))
{
kursor_adress(adress);
LCD_write_str(buffer);
LCD_write_str(" ");
}
else if (str <=(-1000))
{
kursor_adress(adress);
LCD_write_str(buffer);
LCD_write_str(" ");
}
}
else
{
if (str < 10)
{
kursor_adress(adress);
LCD_write_str(buffer);
LCD_write_str(" ");
}
else if (str < 100)
{
kursor_adress(adress);
LCD_write_str(buffer);
LCD_write_str(" ");
}
else if (str < 1000)
{
kursor_adress(adress);
LCD_write_str(buffer);
LCD_write_str(" ");
}
else if (str >= 1000)
{
kursor_adress(adress);
LCD_write_str(buffer);
LCD_write_str(" ");
}
}
}
/*
void LCD_read_BF()
{
uint8_t tmp = 0;
uint8_t data = 0;
DDR_DATA &= 0x0F;
PORT_DATA |= 0xF0;
PORT_SIG |= (ON<<RW);
PORT_SIG &= ~(ON<<RS);
do{
PORT_SIG|= (ON<<E);
_delay_ms(10);
data = PIN_DATA & 0xF0;
PORT_SIG &= ~(ON<<E);
tmp = data;
PORT_SIG|= (ON<<E);
_delay_ms(10);
data = PIN_DATA & 0xF0;
PORT_SIG &= ~(ON<<E);
data = data>>4;
tmp|=data;
}while((tmp &(1<<BF))!=0);
}
*/