SSD1306 OLED display driver  1.4.12
This library is developed to control SSD1306/SSD1331 RGB i2c/spi OLED displays and spi PCD8544 LED display
oled_ssd1331.c
1 /*
2  MIT License
3 
4  Copyright (c) 2018, Alexey Dynda
5 
6  Permission is hereby granted, free of charge, to any person obtaining a copy
7  of this software and associated documentation files (the "Software"), to deal
8  in the Software without restriction, including without limitation the rights
9  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  copies of the Software, and to permit persons to whom the Software is
11  furnished to do so, subject to the following conditions:
12 
13  The above copyright notice and this permission notice shall be included in all
14  copies or substantial portions of the Software.
15 
16  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  SOFTWARE.
23 */
24 
25 #include "oled_ssd1331.h"
26 #include "lcd_common.h"
27 #include "ssd1331_commands.h"
28 #include "intf/ssd1306_interface.h"
29 #include "spi/ssd1306_spi.h"
30 #include "hal/io.h"
31 
32 extern uint16_t ssd1306_color;
33 
34 static const PROGMEM uint8_t s_oled96x64_initData[] =
35 {
36  SSD1331_DISPLAYOFF, // display off
37  SSD1331_SEGREMAP, 0x00 | 0x20 | 0x10 | 0x02 | 0x01, /* 8-bit rgb color mode */
38  SSD1331_SETSTARTLINE, 0x00, // First line to start scanning from
39  SSD1331_SETDISPLAYOFFSET, 0x00, // Set display offset
40  SSD1331_NORMALDISPLAY,
41  SSD1331_SETMULTIPLEX, 63, // Reset to default MUX. See datasheet
42  SSD1331_SETMASTER, 0x8E, // Set master mode
43  SSD1331_POWERMODE, 0x0B, // Disable power-safe mode
44  SSD1331_SETPRECHARGE, 0x31, // Phase 1 and Phase 2 periods
45  SSD1331_CLOCKDIV, 0xF0, // 7:4 = Oscillator Frequency, 3:0 = CLK Div Ratio (A[3:0]+1 = 1..16)
46  SSD1331_PRECHARGEA, 0x64,
47  SSD1331_PRECHARGEB, 0x78,
48  SSD1331_PRECHARGELEVEL, 0x3A,
49  SSD1331_VCOMH, 0x3E,
50  SSD1331_MASTERCURRENT, 0x09,
51  SSD1331_CONTRASTA, 0x91, // RED
52  SSD1331_CONTRASTB, 0x50, // GREEN
53  SSD1331_CONTRASTC, 0x7D, // BLUE
54  SSD1331_DISPLAYON,
55 };
56 
57 static uint8_t s_column;
58 static uint8_t s_page;
59 
60 static void ssd1331_setBlock(uint8_t x, uint8_t y, uint8_t w)
61 {
62  uint8_t rx = w ? (x + w - 1) : (s_displayWidth - 1);
63  s_column = x;
64  s_page = y;
66  ssd1306_sendByte(SSD1331_COLUMNADDR);
69  ssd1306_sendByte(SSD1331_ROWADDR);
70  ssd1306_sendByte(y<<3);
71  ssd1306_sendByte(((y<<3) + 7) < s_displayHeight ? ((y<<3) + 7) : (s_displayHeight - 1));
73 }
74 
75 static void ssd1331_nextPage(void)
76 {
78  ssd1331_setBlock(s_column,s_page+1,0);
79 }
80 
81 static void ssd1331_sendPixels(uint8_t data)
82 {
83  for (uint8_t i=8; i>0; i--)
84  {
85  if ( data & 0x01 )
86  {
87  ssd1306_sendByte( (uint8_t)ssd1306_color );
88  }
89  else
90  {
91  ssd1306_sendByte( 0B00000000 );
92  }
93  data >>= 1;
94  }
95 }
96 
98 {
100  s_displayHeight = 64;
101  s_displayWidth = 96;
102  ssd1306_setRamBlock = ssd1331_setBlock;
103  ssd1306_nextRamPage = ssd1331_nextPage;
104  ssd1306_sendPixels = ssd1331_sendPixels;
105  for( uint8_t i=0; i<sizeof(s_oled96x64_initData); i++)
106  {
107  ssd1306_sendCommand(pgm_read_byte(&s_oled96x64_initData[i]));
108  }
109 }
110 
111 void ssd1331_96x64_spi_init(int8_t rstPin, int8_t cesPin, int8_t dcPin)
112 {
113  if (rstPin >=0)
114  {
115  pinMode(rstPin, OUTPUT);
116  digitalWrite(rstPin, HIGH);
117  /* Wait at least 1ms after VCC is up for LCD */
118  delay(1);
119  /* Perform reset operation of LCD display */
120  digitalWrite(rstPin, LOW);
121  delay(10);
122  digitalWrite(rstPin, HIGH);
123  }
124  ssd1306_spiInit(cesPin, dcPin);
126 }
void ssd1331_96x64_init()
Inits 96x64 RGB OLED display (based on SSD1331 controller).
Definition: oled_ssd1331.c:97
void(* ssd1306_sendByte)(uint8_t data)
void ssd1331_96x64_spi_init(int8_t rstPin, int8_t cesPin, int8_t dcPin)
Inits 96x64 RGB OLED display over spi (based on SSD1331 controller).
Definition: oled_ssd1331.c:111
void ssd1306_sendCommand(uint8_t command)
void(* ssd1306_endTransmission)(void)
void ssd1306_spiDataMode(uint8_t mode)
Definition: ssd1306_spi.c:64
uint8_t g_lcd_type
Definition: ssd1306.c:41
uint8_t s_displayHeight
Definition: ssd1306.c:38
void(* ssd1306_commandStart)(void)
void(* ssd1306_setRamBlock)(uint8_t x, uint8_t y, uint8_t w)
void(* ssd1306_nextRamPage)(void)
void(* ssd1306_sendPixels)(uint8_t data)
void ssd1306_spiInit(int8_t cesPin, int8_t dcPin)
Definition: ssd1306_spi.c:38
uint8_t s_displayWidth
Definition: ssd1306.c:39