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-rw-r--r--obdlogger/SH1106.cpp399
1 files changed, 399 insertions, 0 deletions
diff --git a/obdlogger/SH1106.cpp b/obdlogger/SH1106.cpp
new file mode 100644
index 0000000..ee93344
--- /dev/null
+++ b/obdlogger/SH1106.cpp
@@ -0,0 +1,399 @@
+#include <Arduino.h>
+#include <Wire.h>
+#include "MicroLCD.h"
+
+#define I2C_ADDR 0x78 >> 1
+
+void LCD_SH1106::WriteCommand(unsigned char ins)
+{
+ Wire.beginTransmission(I2C_ADDR);//0x78 >> 1
+ Wire.write(0x00);//0x00
+ Wire.write(ins);
+ Wire.endTransmission();
+}
+
+void LCD_SH1106::WriteData(unsigned char dat)
+{
+ Wire.beginTransmission(I2C_ADDR);//0x78 >> 1
+ Wire.write(0x40);//0x40
+ Wire.write(dat);
+ Wire.endTransmission();
+}
+
+void LCD_SH1106::setCursor(unsigned char x, unsigned char y)
+{
+ m_col = x + 2;
+ m_row = y;
+ WriteCommand(0xb0 + m_row);
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+}
+
+void LCD_SH1106::clear(byte x, byte y, byte width, byte height)
+{
+ WriteCommand(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0
+ WriteCommand(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0
+ WriteCommand(SSD1306_SETSTARTLINE | 0x0); // line #0
+
+ // save I2C bitrate
+ uint8_t twbrbackup = TWBR;
+ TWBR = 18; // upgrade to 400KHz!
+
+ height >>= 3;
+ width >>= 3;
+ y >>= 3;
+ for (byte i = 0; i < height; i++) {
+ // send a bunch of data in one xmission
+ WriteCommand(0xB0 + i + y);//set page address
+ WriteCommand((x + 2) & 0xf);//set lower column address
+ WriteCommand(0x10 | (x >> 4));//set higher column address
+
+ for(byte j = 0; j < 8; j++){
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte k = 0; k < width; k++) {
+ Wire.write(0);
+ }
+ Wire.endTransmission();
+ }
+ }
+
+ setCursor(0, 0);
+ TWBR = twbrbackup;
+}
+
+size_t LCD_SH1106::write(uint8_t c)
+{
+ if (c == '\n') {
+ setCursor(0, m_row + ((m_font == FONT_SIZE_SMALL) ? 1 : 2));
+ return 1;
+ } else if (c == '\r') {
+ m_col = 0;
+ return 1;
+ }
+
+ uint8_t twbrbackup = TWBR;
+ TWBR = 18; // upgrade to 400KHz!
+#ifndef MEMORY_SAVING
+ if (m_font == FONT_SIZE_SMALL) {
+#endif
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ if (c > 0x20 && c < 0x7f) {
+ c -= 0x21;
+ for (byte i = 0; i < 5; i++) {
+ byte d = pgm_read_byte(&font5x8[c][i]);
+ Wire.write(d);
+ if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+ }
+ Wire.write(0);
+ } else {
+ for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 11 : 6; i > 0; i--) {
+ Wire.write(0);
+ }
+ }
+ Wire.endTransmission();
+ m_col += (m_flags & FLAG_PIXEL_DOUBLE_H) ? 11 : 6;
+ if (m_col >= 128) {
+ m_col = 0;
+ m_row ++;
+ }
+#ifndef MEMORY_SAVING
+ } else {
+ if (c > 0x20 && c < 0x7f) {
+ c -= 0x21;
+
+ WriteCommand(0xB0 + m_row);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte i = 0; i <= 14; i += 2) {
+ byte d = pgm_read_byte(&font8x16_terminal[c][i]);
+ Wire.write(d);
+ if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+ }
+ Wire.endTransmission();
+
+ WriteCommand(0xB0 + m_row + 1);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte i = 1; i <= 15; i += 2) {
+ byte d = pgm_read_byte(&font8x16_terminal[c][i]);
+ Wire.write(d);
+ if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+ }
+ Wire.endTransmission();
+ } else {
+ WriteCommand(0xB0 + m_row);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 16 : 8; i > 0; i--) {
+ Wire.write(0);
+ }
+ Wire.endTransmission();
+
+ WriteCommand(0xB0 + m_row + 1);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 16 : 8; i > 0; i--) {
+ Wire.write(0);
+ }
+ Wire.endTransmission();
+ }
+ m_col += (m_flags & FLAG_PIXEL_DOUBLE_H) ? 17 : 9;
+ if (m_col >= 128) {
+ m_col = 0;
+ m_row += 2;
+ }
+ }
+#endif
+ TWBR = twbrbackup;
+ return 1;
+}
+
+void LCD_SH1106::writeDigit(byte n)
+{
+ uint8_t twbrbackup = TWBR;
+ TWBR = 18; // upgrade to 400KHz!
+
+ if (m_font == FONT_SIZE_SMALL) {
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ if (n <= 9) {
+ n += '0' - 0x21;
+ for (byte i = 0; i < 5; i++) {
+ Wire.write(pgm_read_byte(&font5x8[n][i]));
+ }
+ Wire.write(0);
+ } else {
+ for (byte i = 0; i < 6; i++) {
+ Wire.write(0);
+ }
+ }
+ Wire.endTransmission();
+ m_col += 6;
+ } else if (m_font == FONT_SIZE_MEDIUM) {
+ write(n <= 9 ? ('0' + n) : ' ');
+#ifndef MEMORY_SAVING
+ } else if (m_font == FONT_SIZE_LARGE) {
+ if (n <= 9) {
+ byte i;
+ WriteCommand(0xB0 + m_row);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (i = 0; i < 16; i ++) {
+ byte d = pgm_read_byte(&digits16x16[n][i]);
+ Wire.write(d);
+ if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+ }
+ Wire.endTransmission();
+
+ WriteCommand(0xB0 + m_row + 1);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (; i < 32; i ++) {
+ byte d = pgm_read_byte(&digits16x16[n][i]);
+ Wire.write(d);
+ if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+ }
+ Wire.endTransmission();
+ } else {
+ WriteCommand(0xB0 + m_row);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+ Wire.write(0);
+ }
+ Wire.endTransmission();
+
+ WriteCommand(0xB0 + m_row + 1);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+ Wire.write(0);
+ }
+ Wire.endTransmission();
+ }
+ m_col += (m_flags & FLAG_PIXEL_DOUBLE_H) ? 30 : 16;
+#endif
+ } else {
+ if (n <= 9) {
+ byte i;
+ WriteCommand(0xB0 + m_row);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (i = 0; i < 16; i ++) {
+ byte d = pgm_read_byte(&digits16x24[n][i * 3]);
+ Wire.write(d);
+ if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+ }
+ Wire.endTransmission();
+
+ WriteCommand(0xB0 + m_row + 1);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (i = 0; i < 16; i ++) {
+ byte d = pgm_read_byte(&digits16x24[n][i * 3 + 1]);
+ Wire.write(d);
+ if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+ }
+ Wire.endTransmission();
+
+ WriteCommand(0xB0 + m_row + 2);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (i = 0; i < 16; i ++) {
+ byte d = pgm_read_byte(&digits16x24[n][i * 3 + 2]);
+ Wire.write(d);
+ if (m_flags & FLAG_PIXEL_DOUBLE_H) Wire.write(d);
+ }
+ Wire.endTransmission();
+ } else {
+ WriteCommand(0xB0 + m_row);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+ Wire.write(0);
+ }
+ Wire.endTransmission();
+
+ WriteCommand(0xB0 + m_row + 1);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+ Wire.write(0);
+ }
+ Wire.endTransmission();
+
+ WriteCommand(0xB0 + m_row + 2);//set page address
+ WriteCommand(m_col & 0xf);//set lower column address
+ WriteCommand(0x10 | (m_col >> 4));//set higher column address
+
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte i = (m_flags & FLAG_PIXEL_DOUBLE_H) ? 32 : 16; i > 0; i--) {
+ Wire.write(0);
+ }
+ Wire.endTransmission();
+ }
+ m_col += (m_flags & FLAG_PIXEL_DOUBLE_H) ? 30 : 16;
+ }
+ TWBR = twbrbackup;
+}
+
+void LCD_SH1106::draw(const PROGMEM byte* buffer, byte x, byte y, byte width, byte height)
+{
+ uint8_t twbrbackup = TWBR;
+ TWBR = 18; // upgrade to 400KHz!
+
+ WriteCommand(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0
+ WriteCommand(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0
+ WriteCommand(SSD1306_SETSTARTLINE | 0x0); // line #0
+
+ const PROGMEM byte *p = buffer;
+ height >>= 3;
+ width >>= 3;
+ y >>= 3;
+ for (byte i = 0; i < height; i++) {
+ // send a bunch of data in one xmission
+ WriteCommand(0xB0 + i + y);//set page address
+ WriteCommand(x & 0xf);//set lower column address
+ WriteCommand(0x10 | (x >> 4));//set higher column address
+
+ for(byte j = 0; j < 8; j++){
+ Wire.beginTransmission(I2C_ADDR);
+ Wire.write(0x40);
+ for (byte k = 0; k < width; k++, p++) {
+ Wire.write(pgm_read_byte(p));
+ }
+ Wire.endTransmission();
+ }
+ }
+ TWBR = twbrbackup;
+}
+
+void LCD_SH1106::begin()
+{
+ Wire.begin();
+
+ WriteCommand(0xAE); /*display off*/
+
+ WriteCommand(0x02); /*set lower column address*/
+ WriteCommand(0x10); /*set higher column address*/
+
+ WriteCommand(0x40); /*set display start line*/
+
+ WriteCommand(0xB0); /*set page address*/
+
+ WriteCommand(0x81); /*contract control*/
+ WriteCommand(0x80); /*128*/
+
+ WriteCommand(0xA1); /*set segment remap*/
+
+ WriteCommand(0xA6); /*normal / reverse*/
+
+ WriteCommand(0xA8); /*multiplex ratio*/
+ WriteCommand(0x3F); /*duty = 1/32*/
+
+ WriteCommand(0xad); /*set charge pump enable*/
+ WriteCommand(0x8b); /*external VCC */
+
+ WriteCommand(0x30); /*0X30---0X33 set VPP 9V liangdu!!!!*/
+
+ WriteCommand(0xC8); /*Com scan direction*/
+
+ WriteCommand(0xD3); /*set display offset*/
+ WriteCommand(0x00); /* 0x20 */
+
+ WriteCommand(0xD5); /*set osc division*/
+ WriteCommand(0x80);
+
+ WriteCommand(0xD9); /*set pre-charge period*/
+ WriteCommand(0x1f); /*0x22*/
+
+ WriteCommand(0xDA); /*set COM pins*/
+ WriteCommand(0x12);
+
+ WriteCommand(0xdb); /*set vcomh*/
+ WriteCommand(0x40);
+
+ WriteCommand(0xAF); /*display ON*/
+}
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