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
|
#include <display.h>
#include <clock.h>
#include <gpio.h>
#include <stdint.h>
#define LCD_RD GPIO_PORT(A, 0)
#define LCD_WR GPIO_PORT(A, 1)
#define LCD_RS GPIO_PORT(A, 4)
#define LCD_CS GPIO_PORT(B, 0)
#define LCD_RST GPIO_PORT(C, 1)
#define LCD_D0 GPIO_PORT(A, 9)
#define LCD_D1 GPIO_PORT(C, 7)
#define LCD_D2 GPIO_PORT(A, 10)
#define LCD_D3 GPIO_PORT(B, 3)
#define LCD_D4 GPIO_PORT(B, 5)
#define LCD_D5 GPIO_PORT(B, 4)
#define LCD_D6 GPIO_PORT(B, 10)
#define LCD_D7 GPIO_PORT(A, 8)
// bbbbbggg gggrrrrr
// 00000000
uint16_t dsp_color(uint8_t r, uint8_t g, uint8_t b)
{
r &= 0x1F;
g &= 0x3F;
b &= 0x1F;
uint16_t c = (b << 11) | (g << 5) | r;
return c;
}
void dsp_write_data(uint8_t data)
{
gpio_dout(LCD_D0, data & 0x01);
gpio_dout(LCD_D1, data & 0x02);
gpio_dout(LCD_D2, data & 0x04);
gpio_dout(LCD_D3, data & 0x08);
gpio_dout(LCD_D4, data & 0x10);
gpio_dout(LCD_D5, data & 0x20);
gpio_dout(LCD_D6, data & 0x40);
gpio_dout(LCD_D7, data & 0x80);
gpio_dout(LCD_WR, 0);
gpio_dout(LCD_WR, 1);
}
void dsp_write_cmd(uint8_t data)
{
gpio_dout(LCD_RS, 0);
dsp_write_data(data);
gpio_dout(LCD_RS, 1);
}
void dsp_set_addr(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
{
dsp_write_cmd(0x2A);
dsp_write_data(x1 >> 8);
dsp_write_data(x1 & 0xFF);
dsp_write_data(x2 >> 8);
dsp_write_data(x2 & 0xFF);
dsp_write_cmd(0x2B);
dsp_write_data(y1 >> 8);
dsp_write_data(y1 & 0xFF);
dsp_write_data(y2 >> 8);
dsp_write_data(y2 & 0xFF);
dsp_write_cmd(0x2C); // begin writing
}
void dsp_init(void)
{
gpio_mode(LCD_CS, OUTPUT);
gpio_mode(LCD_RS, OUTPUT);
gpio_mode(LCD_RD, OUTPUT);
gpio_mode(LCD_WR, OUTPUT);
gpio_mode(LCD_RST, OUTPUT);
gpio_mode(LCD_D0, OUTPUT);
gpio_mode(LCD_D1, OUTPUT);
gpio_mode(LCD_D2, OUTPUT);
gpio_mode(LCD_D3, OUTPUT);
gpio_mode(LCD_D4, OUTPUT);
gpio_mode(LCD_D5, OUTPUT);
gpio_mode(LCD_D6, OUTPUT);
gpio_mode(LCD_D7, OUTPUT);
gpio_speed(LCD_CS, LOW);
gpio_speed(LCD_RS, LOW);
gpio_speed(LCD_RD, LOW);
gpio_speed(LCD_WR, LOW);
gpio_speed(LCD_RST, LOW);
gpio_speed(LCD_D0, LOW);
gpio_speed(LCD_D1, LOW);
gpio_speed(LCD_D2, LOW);
gpio_speed(LCD_D3, LOW);
gpio_speed(LCD_D4, LOW);
gpio_speed(LCD_D5, LOW);
gpio_speed(LCD_D6, LOW);
gpio_speed(LCD_D7, LOW);
gpio_dout(LCD_CS, 0);
gpio_dout(LCD_RS, 1);
gpio_dout(LCD_RD, 1);
gpio_dout(LCD_WR, 1);
gpio_dout(LCD_RST, 1);
gpio_dout(LCD_D0, 0);
gpio_dout(LCD_D1, 0);
gpio_dout(LCD_D2, 0);
gpio_dout(LCD_D3, 0);
gpio_dout(LCD_D4, 0);
gpio_dout(LCD_D5, 0);
gpio_dout(LCD_D6, 0);
gpio_dout(LCD_D7, 0);
delay(50);
gpio_dout(LCD_RST, 0);
delay(15);
gpio_dout(LCD_RST, 1);
delay(15);
dsp_write_cmd(0x01); // soft reset
delay(50);
dsp_write_cmd(0xD0); // power setting
dsp_write_data(0x07);
dsp_write_data(0x42);
dsp_write_data(0x18);
dsp_write_cmd(0xD1); // vcom control
dsp_write_data(0x00);
dsp_write_data(0x07);
dsp_write_data(0x10);
dsp_write_cmd(0xD2); // power for normal mode
dsp_write_data(0x01);
dsp_write_data(0x02);
dsp_write_cmd(0xD3);
dsp_write_data(0x01);
dsp_write_data(0x02);
dsp_write_cmd(0xD4);
dsp_write_data(0x01);
dsp_write_data(0x02);
dsp_write_cmd(0xC0); // panel driving setting
dsp_write_data(0x10);
dsp_write_data(0x3B);
dsp_write_data(0x00);
dsp_write_data(0x02);
dsp_write_data(0x11);
dsp_write_cmd(0xC5); // frame rate/inversion ctl
dsp_write_data(0x03);
// backlight
dsp_write_cmd(0x55);
dsp_write_data(0x01);
dsp_write_cmd(0x53);
dsp_write_data(0x2C);
dsp_write_cmd(0x51);
dsp_write_data(0x01);
dsp_write_cmd(0x36); // rot. and stuff
dsp_write_data(0x41);
dsp_write_cmd(0x3A); // set pixel format
dsp_write_data(0x65);
dsp_write_cmd(0x11);
delay(150);
dsp_write_cmd(0x29); // set display on
delay(500);
/*dsp_write_cmd(0x33); // set scroll area
dsp_write_data(0x00);
dsp_write_data(0x00);
dsp_write_data(LCD_HEIGHT >> 8);
dsp_write_data((LCD_HEIGHT & 0xFF) - 1);
dsp_write_data(0x00);
dsp_write_data(0x00);
dsp_write_cmd(0x37);
dsp_write_data(0x00);
dsp_write_data(0x00);*/
dsp_set_addr(0, 0, LCD_WIDTH, LCD_HEIGHT);
}
|
