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
|
/*
* Copyright 2021 Daniel Friesel
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#ifndef SSD1306_H
#define SSD1306_H
#define SSD1306_SET_CONTRAST 0x81
#define SSD1306_SET_ENTIRE_ON 0xa4
#define SSD1306_SET_NORM_INV 0xa6
#define SSD1306_SET_DISP 0xae
#define SSD1306_SET_MEM_ADDR 0x20
#define SSD1306_SET_COL_ADDR 0x21
#define SSD1306_SET_PAGE_ADDR 0x22
#define SSD1306_SET_DISP_START_LINE 0x40
#define SSD1306_SET_SEG_REMAP 0xa0
#define SSD1306_SET_MUX_RATIO 0xa8
#define SSD1306_SET_COM_OUT_DIR 0xc0
#define SSD1306_SET_DISP_OFFSET 0xd3
#define SSD1306_SET_COM_PIN_CFG 0xda
#define SSD1306_SET_DISP_CLK_DIV 0xd5
#define SSD1306_SET_PRECHARGE 0xd9
#define SSD1306_SET_VCOM_DESEL 0xdb
#define SSD1306_SET_CHARGE_PUMP 0x8d
#include <stdint.h>
#include <stddef.h>
class SSD1306 {
private:
const uint8_t width = SSD1306_WIDTH;
const uint8_t height = SSD1306_HEIGHT;
SSD1306(const SSD1306 ©);
unsigned char const address = 0x3c;
unsigned char txbuf[130];
unsigned char rxbuf[2];
const unsigned char init1[6] = {
SSD1306_SET_DISP | 0x00,
SSD1306_SET_MEM_ADDR, 0x00,
SSD1306_SET_DISP_START_LINE | 0x00,
SSD1306_SET_SEG_REMAP | 0x01,
SSD1306_SET_MUX_RATIO
};
// height
const unsigned char init2[4] = {
SSD1306_SET_COM_OUT_DIR | 0x08,
SSD1306_SET_DISP_OFFSET, 0x00,
SSD1306_SET_COM_PIN_CFG
};
// height == 32? 0x02 : 0x12
const unsigned char init3[13] = {
SSD1306_SET_DISP_CLK_DIV, 0x80,
SSD1306_SET_PRECHARGE, 0xf1,
SSD1306_SET_VCOM_DESEL, 0x30,
SSD1306_SET_CONTRAST, 0xff,
SSD1306_SET_ENTIRE_ON,
SSD1306_SET_NORM_INV,
SSD1306_SET_CHARGE_PUMP, 0x14,
SSD1306_SET_DISP | 0x01
};
void writeCommand(uint8_t command);
void writeData(unsigned char* data);
public:
SSD1306() {}
void init();
void showImage(unsigned char* data, uint16_t length);
};
extern SSD1306 ssd1306;
#endif
|
