diff options
Diffstat (limited to 'libraries/MultiLCD/MultiLCD.cpp')
-rw-r--r-- | libraries/MultiLCD/MultiLCD.cpp | 517 |
1 files changed, 370 insertions, 147 deletions
diff --git a/libraries/MultiLCD/MultiLCD.cpp b/libraries/MultiLCD/MultiLCD.cpp index cff82c2..4cf3dd5 100644 --- a/libraries/MultiLCD/MultiLCD.cpp +++ b/libraries/MultiLCD/MultiLCD.cpp @@ -1,182 +1,405 @@ +/************************************************************************* +* Arduino Text Display Library for Multiple LCDs +* Distributed under GPL v2.0 +* Copyright (c) 2013 Stanley Huang <stanleyhuangyc@live.com> +* All rights reserved. +*************************************************************************/ + #include <Arduino.h> +#include <Wire.h> #include "MultiLCD.h" -const PROGMEM unsigned char font16x16[][32] = { -{0x00,0xE0,0xF8,0xFC,0xFE,0x1E,0x07,0x07,0x07,0x07,0x1E,0xFE,0xFC,0xF8,0xF0,0x00,0x00,0x07,0x0F,0x3F,0x3F,0x7C,0x70,0x70,0x70,0x70,0x7C,0x3F,0x1F,0x1F,0x07,0x00},/*0*/ -{0x00,0x00,0x00,0x06,0x07,0x07,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x7F,0x7F,0x7F,0x00,0x00,0x00,0x00,0x00,0x00},/*1*/ -{0x00,0x38,0x3C,0x3E,0x3E,0x0F,0x07,0x07,0x07,0xCF,0xFF,0xFE,0xFE,0x38,0x00,0x00,0x00,0x40,0x40,0x60,0x70,0x78,0x7C,0x7E,0x7F,0x77,0x73,0x71,0x70,0x70,0x00,0x00},/*2*/ -{0x00,0x18,0x1C,0x1E,0x1E,0x0F,0xC7,0xC7,0xE7,0xFF,0xFE,0xBE,0x9C,0x00,0x00,0x00,0x00,0x0C,0x1C,0x3C,0x3C,0x78,0x70,0x70,0x70,0x79,0x7F,0x3F,0x1F,0x0F,0x00,0x00},/*3*/ -{0x00,0x00,0x80,0xC0,0xE0,0x70,0x38,0x1C,0x1E,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x06,0x07,0x07,0x07,0x06,0x06,0x06,0x06,0x06,0x7F,0x7F,0x7F,0x7F,0x06,0x06,0x00},/*4*/ -{0x00,0x00,0x00,0x00,0xF0,0xFF,0xFF,0xFF,0xE7,0xE7,0xE7,0xE7,0xC7,0x87,0x00,0x00,0x00,0x00,0x38,0x78,0x71,0x70,0x70,0x70,0x70,0x70,0x39,0x3F,0x3F,0x1F,0x0F,0x00},/*5*/ -{0x00,0x80,0xE0,0xF0,0xF8,0xFC,0x7F,0x7F,0x6F,0x67,0xE1,0xE1,0xC0,0x80,0x00,0x00,0x00,0x0F,0x1F,0x3F,0x3F,0x78,0x70,0x70,0x70,0x70,0x78,0x3F,0x3F,0x1F,0x0F,0x00},/*6*/ -{0x00,0x07,0x07,0x07,0x07,0x07,0xC7,0xE7,0xF7,0xFF,0x7F,0x3F,0x1F,0x07,0x03,0x01,0x00,0x20,0x38,0x7C,0x7E,0x3F,0x0F,0x07,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*7*/ -{0x00,0x00,0x00,0x1C,0xBE,0xFE,0xFF,0xE7,0xC3,0xC3,0xE7,0xFF,0xFE,0xBE,0x1C,0x00,0x00,0x00,0x0E,0x3F,0x3F,0x7F,0x71,0x60,0x60,0x60,0x71,0x7F,0x3F,0x3F,0x0F,0x00},/*8*/ -{0x00,0x78,0xFC,0xFE,0xFE,0x8F,0x07,0x07,0x07,0x07,0x8F,0xFE,0xFE,0xFC,0xF8,0x00,0x00,0x00,0x00,0x01,0x43,0x43,0x73,0x7B,0x7F,0x7F,0x1F,0x0F,0x07,0x03,0x00,0x00},/*9*/ -}; - -// The 7-bit ASCII character set... -const PROGMEM unsigned char font5x8[][5] = { - { 0x00, 0x00, 0x00, 0x00, 0x00 }, // 20 space - { 0x00, 0x00, 0x5f, 0x00, 0x00 }, // 21 ! - { 0x00, 0x07, 0x00, 0x07, 0x00 }, // 22 " - { 0x14, 0x7f, 0x14, 0x7f, 0x14 }, // 23 # - { 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, // 24 $ - { 0x23, 0x13, 0x08, 0x64, 0x62 }, // 25 % - { 0x36, 0x49, 0x55, 0x22, 0x50 }, // 26 & - { 0x00, 0x05, 0x03, 0x00, 0x00 }, // 27 ' - { 0x00, 0x1c, 0x22, 0x41, 0x00 }, // 28 ( - { 0x00, 0x41, 0x22, 0x1c, 0x00 }, // 29 ) - { 0x14, 0x08, 0x3e, 0x08, 0x14 }, // 2a * - { 0x08, 0x08, 0x3e, 0x08, 0x08 }, // 2b + - { 0x00, 0x50, 0x30, 0x00, 0x00 }, // 2c , - { 0x08, 0x08, 0x08, 0x08, 0x08 }, // 2d - - { 0x00, 0x60, 0x60, 0x00, 0x00 }, // 2e . - { 0x20, 0x10, 0x08, 0x04, 0x02 }, // 2f / - { 0x3e, 0x51, 0x49, 0x45, 0x3e }, // 30 0 - { 0x00, 0x42, 0x7f, 0x40, 0x00 }, // 31 1 - { 0x42, 0x61, 0x51, 0x49, 0x46 }, // 32 2 - { 0x21, 0x41, 0x45, 0x4b, 0x31 }, // 33 3 - { 0x18, 0x14, 0x12, 0x7f, 0x10 }, // 34 4 - { 0x27, 0x45, 0x45, 0x45, 0x39 }, // 35 5 - { 0x3c, 0x4a, 0x49, 0x49, 0x30 }, // 36 6 - { 0x01, 0x71, 0x09, 0x05, 0x03 }, // 37 7 - { 0x36, 0x49, 0x49, 0x49, 0x36 }, // 38 8 - { 0x06, 0x49, 0x49, 0x29, 0x1e }, // 39 9 - { 0x00, 0x36, 0x36, 0x00, 0x00 }, // 3a : - { 0x00, 0x56, 0x36, 0x00, 0x00 }, // 3b ; - { 0x08, 0x14, 0x22, 0x41, 0x00 }, // 3c < - { 0x14, 0x14, 0x14, 0x14, 0x14 }, // 3d = - { 0x00, 0x41, 0x22, 0x14, 0x08 }, // 3e > - { 0x02, 0x01, 0x51, 0x09, 0x06 }, // 3f ? - { 0x32, 0x49, 0x79, 0x41, 0x3e }, // 40 @ - { 0x7e, 0x11, 0x11, 0x11, 0x7e }, // 41 A - { 0x7f, 0x49, 0x49, 0x49, 0x36 }, // 42 B - { 0x3e, 0x41, 0x41, 0x41, 0x22 }, // 43 C - { 0x7f, 0x41, 0x41, 0x22, 0x1c }, // 44 D - { 0x7f, 0x49, 0x49, 0x49, 0x41 }, // 45 E - { 0x7f, 0x09, 0x09, 0x09, 0x01 }, // 46 F - { 0x3e, 0x41, 0x49, 0x49, 0x7a }, // 47 G - { 0x7f, 0x08, 0x08, 0x08, 0x7f }, // 48 H - { 0x00, 0x41, 0x7f, 0x41, 0x00 }, // 49 I - { 0x20, 0x40, 0x41, 0x3f, 0x01 }, // 4a J - { 0x7f, 0x08, 0x14, 0x22, 0x41 }, // 4b K - { 0x7f, 0x40, 0x40, 0x40, 0x40 }, // 4c L - { 0x7f, 0x02, 0x0c, 0x02, 0x7f }, // 4d M - { 0x7f, 0x04, 0x08, 0x10, 0x7f }, // 4e N - { 0x3e, 0x41, 0x41, 0x41, 0x3e }, // 4f O - { 0x7f, 0x09, 0x09, 0x09, 0x06 }, // 50 P - { 0x3e, 0x41, 0x51, 0x21, 0x5e }, // 51 Q - { 0x7f, 0x09, 0x19, 0x29, 0x46 }, // 52 R - { 0x46, 0x49, 0x49, 0x49, 0x31 }, // 53 S - { 0x01, 0x01, 0x7f, 0x01, 0x01 }, // 54 T - { 0x3f, 0x40, 0x40, 0x40, 0x3f }, // 55 U - { 0x1f, 0x20, 0x40, 0x20, 0x1f }, // 56 V - { 0x3f, 0x40, 0x38, 0x40, 0x3f }, // 57 W - { 0x63, 0x14, 0x08, 0x14, 0x63 }, // 58 X - { 0x07, 0x08, 0x70, 0x08, 0x07 }, // 59 Y - { 0x61, 0x51, 0x49, 0x45, 0x43 }, // 5a Z - { 0x00, 0x7f, 0x41, 0x41, 0x00 }, // 5b [ - { 0x02, 0x04, 0x08, 0x10, 0x20 }, // 5c backslash - { 0x00, 0x41, 0x41, 0x7f, 0x00 }, // 5d ] - { 0x04, 0x02, 0x01, 0x02, 0x04 }, // 5e ^ - { 0x40, 0x40, 0x40, 0x40, 0x40 }, // 5f _ - { 0x00, 0x01, 0x02, 0x04, 0x00 }, // 60 ` - { 0x20, 0x54, 0x54, 0x54, 0x78 }, // 61 a - { 0x7f, 0x48, 0x44, 0x44, 0x38 }, // 62 b - { 0x38, 0x44, 0x44, 0x44, 0x20 }, // 63 c - { 0x38, 0x44, 0x44, 0x48, 0x7f }, // 64 d - { 0x38, 0x54, 0x54, 0x54, 0x18 }, // 65 e - { 0x08, 0x7e, 0x09, 0x01, 0x02 }, // 66 f - { 0x0c, 0x52, 0x52, 0x52, 0x3e }, // 67 g - { 0x7f, 0x08, 0x04, 0x04, 0x78 }, // 68 h - { 0x00, 0x44, 0x7d, 0x40, 0x00 }, // 69 i - { 0x20, 0x40, 0x44, 0x3d, 0x00 }, // 6a j - { 0x7f, 0x10, 0x28, 0x44, 0x00 }, // 6b k - { 0x00, 0x41, 0x7f, 0x40, 0x00 }, // 6c l - { 0x7c, 0x04, 0x18, 0x04, 0x78 }, // 6d m - { 0x7c, 0x08, 0x04, 0x04, 0x78 }, // 6e n - { 0x38, 0x44, 0x44, 0x44, 0x38 }, // 6f o - { 0x7c, 0x14, 0x14, 0x14, 0x08 }, // 70 p - { 0x08, 0x14, 0x14, 0x18, 0x7c }, // 71 q - { 0x7c, 0x08, 0x04, 0x04, 0x08 }, // 72 r - { 0x48, 0x54, 0x54, 0x54, 0x20 }, // 73 s - { 0x04, 0x3f, 0x44, 0x40, 0x20 }, // 74 t - { 0x3c, 0x40, 0x40, 0x20, 0x7c }, // 75 u - { 0x1c, 0x20, 0x40, 0x20, 0x1c }, // 76 v - { 0x3c, 0x40, 0x30, 0x40, 0x3c }, // 77 w - { 0x44, 0x28, 0x10, 0x28, 0x44 }, // 78 x - { 0x0c, 0x50, 0x50, 0x50, 0x3c }, // 79 y - { 0x44, 0x64, 0x54, 0x4c, 0x44 }, // 7a z - { 0x00, 0x08, 0x36, 0x41, 0x00 }, // 7b { - { 0x00, 0x00, 0x7f, 0x00, 0x00 }, // 7c | - { 0x00, 0x41, 0x36, 0x08, 0x00 }, // 7d } - { 0x10, 0x08, 0x08, 0x10, 0x08 }, // 7e ~ - { 0x00, 0x00, 0x00, 0x00, 0x00 } // 7f -}; - -void LCD_OLED::write(char c) -{ - char s[2] = {c}; - ScI2cMxDisplay8x16Str(OLED_ADDRESS, m_line, m_column, s); - m_column += 8; - if (m_column >= 128) { - m_column = 0; - m_line += 2; +void LCD_Common::printInt(unsigned int value, char padding) +{ + unsigned int den = 10000; + for (byte i = 5; i > 0; i--, den /= 10) { + byte v = (byte)(value / den); + value -= v * den; + if (v == 0 && padding) { + if (padding >= i) { + writeDigit(-1); + } + continue; + } + padding = 0; + writeDigit(v); } } -void LCD_OLED::print(const char* s) +void LCD_Common::printLong(unsigned long value, char padding) { - ScI2cMxDisplay8x16Str(OLED_ADDRESS, m_line, m_column, s); - m_column += (strlen(s) << 3); - m_line += (m_column >> 7) << 1; - m_column %= 0x7f; + unsigned long den = 1000000000; + for (byte i = 10; i > 0; i--, den /= 10) { + byte v = (byte)(value / den); + value -= v * den; + if (v == 0 && padding) { + if (padding >= i) { + writeDigit(-1); + } + continue; + } + padding = 0; + writeDigit(v); + } +} + +void LCD_ZTOLED::setCursor(byte column, byte line) +{ + m_column = column; + m_page = line; + ScI2cMxSetLocation(OLED_ADDRESS, m_page, m_column); + delay(1); } -void LCD_OLED::printLarge(const char* s) +size_t LCD_ZTOLED::write(uint8_t c) { - delay(5); - while (*s) { - if (*s >= '0' && *s <= '9') { - char data[32]; - memcpy_P(data, font16x16[*s - '0'], 32); - ScI2cMxDisplayDot16x16(OLED_ADDRESS, m_line, m_column, data); + if (m_font == FONT_SIZE_SMALL) { + if (c <= 0x20 || c >= 0x7f) { + ScI2cMxFillArea(OLED_ADDRESS, m_column, m_column + 5, m_page, m_page, 0); } else { - ScI2cMxFillArea(OLED_ADDRESS, m_line, m_line + 1, m_column, m_column + 16, 0); + setCursor(m_column, m_page); + ScI2cMxDisplayDot(OLED_ADDRESS, font5x8[c - 0x21], 5); } - m_column += 16; + m_column += 6; + } else { + char s[2] = {c}; + ScI2cMxDisplay8x16Str(OLED_ADDRESS, m_page, m_column, s); + m_column += 8; if (m_column >= 128) { m_column = 0; - m_line += 2; + m_page += 2; + } + } + return 1; +} + +/* +void LCD_ZTOLED::print(const char* s) +{ + ScI2cMxDisplay8x16Str(OLED_ADDRESS, m_page, m_column, s); + m_column += (strlen(s) << 3); + m_page += (m_column >> 7) << 1; + m_column %= 0x7f; +} +*/ + +void LCD_ZTOLED::writeDigit(byte n) +{ + if (n > 9) return; + + if (m_font == FONT_SIZE_SMALL) { + setCursor(m_column, m_page); + ScI2cMxDisplayDot(OLED_ADDRESS, font5x8[n + ('0' - 0x21)], 5); + m_column += 6; + } else if (m_font == FONT_SIZE_MEDIUM) { + ScI2cMxDisplayDot(OLED_ADDRESS, digits8x8[n], 8); + m_column += 8; + } else if (m_font == FONT_SIZE_LARGE) { + write('0' + n); + } else { + unsigned char data[32]; + if (n >= 0 && n <= 9) { + memcpy_P(data, digits16x16[n], 32); + } else { + memset(data, 0, sizeof(data)); } - s++; + ScI2cMxDisplayDot16x16(OLED_ADDRESS, m_page, m_column, data); + m_column += 16; } } -void LCD_OLED::clear() +void LCD_ZTOLED::clear() { ScI2cMxFillArea(OLED_ADDRESS, 0, 7, 0, 127, 0); delay(10); setCursor(0, 0); } -void LCD_OLED::begin() +void LCD_ZTOLED::begin() { I2cInit(); ScI2cMxReset(OLED_ADDRESS); delay(10); } -void LCD_PCD8544::printLarge(const char* s) +void LCD_PCD8544::writeDigit(byte n) +{ + if (m_font == FONT_SIZE_SMALL) { + write(n >= 0 && n <= 9 ? '0' + n : ' '); + } else if (m_font == FONT_SIZE_MEDIUM) { + unsigned char data[8]; + if (n >= 0 && n <= 9) { + memcpy_P(data, digits8x8[n], 8); + } else { + memset(data, 0, sizeof(data)); + } + draw8x8(data); + } else { + unsigned char data[32]; + if (n >= 0 && n <= 9) { + memcpy_P(data, digits16x16[n], 32); + } else { + memset(data, 0, sizeof(data)); + } + draw16x16(data); + //column += 16; + } +} + + +void LCD_PCD8544::draw(const unsigned char *data, unsigned char x, unsigned char y, unsigned char width, unsigned char height) { - while (*s) { - if (*s >= '0' && *s <= '9') { - unsigned char data[32]; - memcpy_P(data, font16x16[*s - '0'], 32); - drawBitmap(data, 16, 16); + height >>= 3; + for (unsigned char y = 0; y < height; y++) { + setCursor(x, y); + for (unsigned char x = 0; x < width; x++) { + send(PCD8544_DATA, data[y * width + x]); + } + } +} + +void LCD_SSD1306::setCursor(byte column, byte line) +{ + m_col = column; + m_row = line; + ssd1306_command(0xB0 + m_row);//set page address + ssd1306_command(m_col & 0xf);//set lower column address + ssd1306_command(0x10 | (m_col >> 4));//set higher column address +} + +size_t LCD_SSD1306::write(uint8_t c) +{ + if (m_font == FONT_SIZE_SMALL) { + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + if (c > 0x20 && c < 0x7f) { + c -= 0x21; + for (byte i = 0; i < 5; i++) { + Wire.write(pgm_read_byte_near(&font5x8[c][i])); + } + Wire.write(0); + } else { + for (byte i = 0; i < 6; i++) { + Wire.write(0); + } + } + Wire.endTransmission(); + m_col += 8; + } else { + if (c > 0x20 && c < 0x7f) { + c -= 0x21; + + ssd1306_command(0xB0 + m_row);//set page address + ssd1306_command(m_col & 0xf);//set lower column address + ssd1306_command(0x10 | (m_col >> 4));//set higher column address + + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte i = 0; i <= 14; i += 2) { + Wire.write(pgm_read_byte_near(&font8x16_terminal[c][i])); + } + Wire.endTransmission(); + + ssd1306_command(0xB0 + m_row + 1);//set page address + ssd1306_command(m_col & 0xf);//set lower column address + ssd1306_command(0x10 | (m_col >> 4));//set higher column address + + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte i = 1; i <= 15; i += 2) { + Wire.write(pgm_read_byte_near(&font8x16_terminal[c][i])); + } + Wire.endTransmission(); } else { - column = (column + 16) % 84; + ssd1306_command(0xB0 + m_row);//set page address + ssd1306_command(m_col & 0xf);//set lower column address + ssd1306_command(0x10 | (m_col >> 4));//set higher column address + + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte i = 0; i < 8; i ++) { + Wire.write(0); + } + Wire.endTransmission(); + + ssd1306_command(0xB0 + m_row + 1);//set page address + ssd1306_command(m_col & 0xf);//set lower column address + ssd1306_command(0x10 | (m_col >> 4));//set higher column address + + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte i = 0; i < 8; i ++) { + Wire.write(0); + } + Wire.endTransmission(); + } + m_col += 9; + } + return 1; +} + +void LCD_SSD1306::writeDigit(byte n) +{ + if (n > 9) return; + + uint8_t twbrbackup = TWBR; + TWBR = 18; // upgrade to 400KHz! + if (m_font == FONT_SIZE_SMALL) { + n += '0' - 0x21; + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte i = 0; i < 5; i++) { + Wire.write(pgm_read_byte_near(&font5x8[n][i])); + } + Wire.write(0); + Wire.endTransmission(); + m_col += 6; + } else if (m_font == FONT_SIZE_MEDIUM) { + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte i = 0; i < 8; i++) { + Wire.write(pgm_read_byte_near(&digits8x8[n][i])); + } + Wire.endTransmission(); + m_col += 8; + } else if (m_font == FONT_SIZE_LARGE) { + n += '0' - 0x21; + ssd1306_command(0xB0 + m_row);//set page address + ssd1306_command(m_col & 0xf);//set lower column address + ssd1306_command(0x10 | (m_col >> 4));//set higher column address + + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte i = 0; i <= 14; i += 2) { + Wire.write(pgm_read_byte_near(&font8x16_terminal[n][i])); + } + Wire.endTransmission(); + + ssd1306_command(0xB0 + m_row + 1);//set page address + ssd1306_command(m_col & 0xf);//set lower column address + ssd1306_command(0x10 | (m_col >> 4));//set higher column address + + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte i = 1; i <= 15; i += 2) { + Wire.write(pgm_read_byte_near(&font8x16_terminal[n][i])); + } + Wire.endTransmission(); + m_col += 9; + } else if (m_font == FONT_SIZE_XLARGE) { + byte i; + ssd1306_command(0xB0 + m_row);//set page address + ssd1306_command(m_col & 0xf);//set lower column address + ssd1306_command(0x10 | (m_col >> 4));//set higher column address + + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (i = 0; i < 16; i ++) { + Wire.write(pgm_read_byte_near(&digits16x16[n][i])); + } + Wire.endTransmission(); + + ssd1306_command(0xB0 + m_row + 1);//set page address + ssd1306_command(m_col & 0xf);//set lower column address + ssd1306_command(0x10 | (m_col >> 4));//set higher column address + + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (; i < 32; i ++) { + Wire.write(pgm_read_byte_near(&digits16x16[n][i])); + } + Wire.endTransmission(); + m_col += 16; + } + TWBR = twbrbackup; +} + +void LCD_SSD1306::draw(const PROGMEM byte* buffer, byte x, byte y, byte width, byte height) +{ + ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0 + ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0 + ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0 + + // save I2C bitrate + uint8_t twbrbackup = TWBR; + TWBR = 18; // upgrade to 400KHz! + + 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 + ssd1306_command(0xB0 + i + y);//set page address + ssd1306_command(x & 0xf);//set lower column address + ssd1306_command(0x10 | (x >> 4));//set higher column address + + for(byte j = 0; j < 8; j++){ + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte k = 0; k < width; k++, p++) { + Wire.write(pgm_read_byte_near(p)); + } + Wire.endTransmission(); + } + } + TWBR = twbrbackup; +} + +void LCD_SSD1306::clearLine(byte line) +{ + ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0 + ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0 + ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0 + + // save I2C bitrate + uint8_t twbrbackup = TWBR; + TWBR = 18; // upgrade to 400KHz! + + // send a bunch of data in one xmission + ssd1306_command(0xB0 + line);//set page address + ssd1306_command(0);//set lower column address + ssd1306_command(0x10);//set higher column address + + for(byte j = 0; j < 8; j++){ + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte k = 0; k < 16; k++) { + Wire.write(0); + } + Wire.endTransmission(); + } + + TWBR = twbrbackup; +} + +void LCD_SSD1306::clear(byte x, byte y, byte width, byte height) +{ + ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0 + ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0 + ssd1306_command(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 + ssd1306_command(0xB0 + i + y);//set page address + ssd1306_command(x & 0xf);//set lower column address + ssd1306_command(0x10 | (x >> 4));//set higher column address + + for(byte j = 0; j < 8; j++){ + Wire.beginTransmission(_i2caddr); + Wire.write(0x40); + for (byte k = 0; k < width; k++) { + Wire.write(0); + } + Wire.endTransmission(); } - s++; } + TWBR = twbrbackup; } |