SSD1306 OLED display driver  1.5.6
This library is developed to control SSD1306/SSD1331/SSD1351/IL9163/PCD8554 RGB i2c/spi LED displays
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(lcduint_t x, lcduint_t y, lcduint_t w)
61 {
62  uint8_t rx = w ? (x + w - 1) : (ssd1306_lcd.width - 1);
63  s_column = x;
64  s_page = y;
67  ssd1306_intf.send(SSD1331_COLUMNADDR);
68  ssd1306_intf.send(x);
70  ssd1306_intf.send(SSD1331_ROWADDR);
71  ssd1306_intf.send(y<<3);
72  ssd1306_intf.send(((y<<3) + 7) < ssd1306_lcd.height ? ((y<<3) + 7) : (ssd1306_lcd.height - 1));
74 }
75 
76 static void ssd1331_setBlock2(lcduint_t x, lcduint_t y, lcduint_t w)
77 {
78  uint8_t rx = w ? (x + w - 1) : (ssd1306_lcd.width - 1);
81  ssd1306_intf.send(SSD1331_COLUMNADDR);
82  ssd1306_intf.send(x);
84  ssd1306_intf.send(SSD1331_ROWADDR);
85  ssd1306_intf.send(y);
88 }
89 
90 static void ssd1331_nextPage(void)
91 {
93  ssd1331_setBlock(s_column,s_page+1,0);
94 }
95 
96 static void ssd1331_sendPixels(uint8_t data)
97 {
98  for (uint8_t i=8; i>0; i--)
99  {
100  if ( data & 0x01 )
101  {
102  ssd1306_intf.send( (uint8_t)ssd1306_color );
103  }
104  else
105  {
106  ssd1306_intf.send( 0B00000000 );
107  }
108  data >>= 1;
109  }
110 }
111 
112 static void ssd1331_sendPixelsBuffer(const uint8_t *buffer, uint16_t len)
113 {
114  while(len--)
115  {
116  ssd1331_sendPixels(*buffer);
117  buffer++;
118  }
119 }
120 
122 {
125  ssd1306_intf.send( SSD1331_SEGREMAP );
126  ssd1306_intf.send( 0x00 | 0x20 | 0x10 | 0x02 | mode /* 8-bit rgb color mode */ );
127  ssd1306_intf.stop();
128  if (mode)
129  {
130  ssd1306_lcd.set_block = ssd1331_setBlock;
131  }
132  else
133  {
134  ssd1306_lcd.set_block = ssd1331_setBlock2;
135  }
136 }
137 
139 {
141  ssd1306_lcd.height = 64;
142  ssd1306_lcd.width = 96;
143  ssd1306_lcd.set_block = ssd1331_setBlock;
144  ssd1306_lcd.next_page = ssd1331_nextPage;
145  ssd1306_lcd.send_pixels1 = ssd1331_sendPixels;
146  ssd1306_lcd.send_pixels_buffer1 = ssd1331_sendPixelsBuffer;
149  for( uint8_t i=0; i<sizeof(s_oled96x64_initData); i++)
150  {
151  ssd1306_sendCommand(pgm_read_byte(&s_oled96x64_initData[i]));
152  }
153 }
154 
155 void ssd1331_96x64_spi_init(int8_t rstPin, int8_t cesPin, int8_t dcPin)
156 {
157  if (rstPin >=0)
158  {
159  pinMode(rstPin, OUTPUT);
160  digitalWrite(rstPin, HIGH);
161  /* Wait at least 1ms after VCC is up for LCD */
162  delay(1);
163  /* Perform reset operation of LCD display */
164  digitalWrite(rstPin, LOW);
165  delay(10);
166  digitalWrite(rstPin, HIGH);
167  }
168  ssd1306_spiInit(cesPin, dcPin);
170 }
unsigned int lcduint_t
Definition: io.h:42
void(* send)(uint8_t data)
void(* set_block)(lcduint_t x, lcduint_t y, lcduint_t w)
Sets block in RAM of lcd display controller to write data to.
Definition: lcd_common.h:110
void(* send_pixels8)(uint8_t data)
Sends RGB pixel encoded in 3-3-2 format to OLED driver. Sends RGB pixel encoded in 3-3-2 format to OL...
Definition: lcd_common.h:138
void ssd1331_setMode(lcd_mode_t mode)
Sets GDRAM autoincrement mode.
Definition: oled_ssd1331.c:121
void ssd1306_spiDataMode(uint8_t mode)
Definition: ssd1306_spi.c:54
lcd_mode_t
Definition: lcd_common.h:65
void(* send_pixels_buffer1)(const uint8_t *buffer, uint16_t len)
Definition: lcd_common.h:131
void(* send_pixels1)(uint8_t data)
Definition: lcd_common.h:124
void ssd1306_spiInit(int8_t cesPin, int8_t dcPin)
Definition: ssd1306_spi.c:39
ssd1306_lcd_t ssd1306_lcd
Definition: lcd_common.c:32
ssd1306_interface_t ssd1306_intf
lcduint_t height
Definition: lcd_common.h:93
void ssd1306_sendCommand(uint8_t command)
void(* next_page)(void)
Definition: lcd_common.h:118
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:155
lcduint_t width
Definition: lcd_common.h:90
lcd_type_t type
Definition: lcd_common.h:87
void(* set_mode)(lcd_mode_t mode)
Sets library display mode for direct draw functions.
Definition: lcd_common.h:153
void ssd1331_96x64_init()
Inits 96x64 RGB OLED display (based on SSD1331 controller).
Definition: oled_ssd1331.c:138