84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/* Arduino SSD1306Ascii Library
|
|
* Copyright (C) 2015 by William Greiman
|
|
*
|
|
* This file is part of the Arduino SSD1306Ascii Library
|
|
*
|
|
* This Library is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This Library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with the Arduino SSD1306Ascii Library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/**
|
|
* @file SSD1306AsciiAvrI2c.h
|
|
* @brief Class for I2C displays using AvrI2c.
|
|
*/
|
|
#ifndef SSD1306AsciiAvrI2c_h
|
|
#define SSD1306AsciiAvrI2c_h
|
|
#include "utility/AvrI2c.h"
|
|
#include "SSD1306Ascii.h"
|
|
/**
|
|
* @class SSD1306AsciiAvrI2c
|
|
* @brief Class for I2C displays on AVR.
|
|
*
|
|
* Uses the AvrI2c class that is smaller and faster than the
|
|
* Wire library.
|
|
*/
|
|
class SSD1306AsciiAvrI2c : public SSD1306Ascii {
|
|
public:
|
|
/**
|
|
* @brief Initialize the display controller.
|
|
*
|
|
* @param[in] dev A device initialization structure.
|
|
* @param[in] i2cAddr The I2C address of the display controller.
|
|
*/
|
|
void begin(const DevType* dev, uint8_t i2cAddr) {
|
|
m_nData = 0;
|
|
m_i2cAddr = i2cAddr;
|
|
|
|
m_i2c.begin(true);
|
|
init(dev);
|
|
}
|
|
/**
|
|
* @brief Initialize the display controller.
|
|
*
|
|
* @param[in] dev A device initialization structure.
|
|
* @param[in] i2cAddr The I2C address of the display controller.
|
|
* @param[in] rst The display controller reset pin.
|
|
*/
|
|
void begin(const DevType* dev, uint8_t i2cAddr, uint8_t rst) {
|
|
oledReset(rst);
|
|
begin(dev, i2cAddr);
|
|
}
|
|
protected:
|
|
void writeDisplay(uint8_t b, uint8_t mode) {
|
|
if ((m_nData && mode == SSD1306_MODE_CMD)) {
|
|
m_i2c.stop();
|
|
m_nData = 0;
|
|
}
|
|
if (m_nData == 0) {
|
|
m_i2c.start((m_i2cAddr << 1) | I2C_WRITE);
|
|
m_i2c.write(mode == SSD1306_MODE_CMD ? 0X00 : 0X40);
|
|
}
|
|
m_i2c.write(b);
|
|
if (mode == SSD1306_MODE_RAM_BUF) {
|
|
m_nData++;
|
|
}else {
|
|
m_i2c.stop();
|
|
m_nData = 0;
|
|
}
|
|
}
|
|
private:
|
|
AvrI2c m_i2c;
|
|
uint8_t m_i2cAddr;
|
|
uint8_t m_nData;
|
|
};
|
|
#endif // SSD1306AsciiAvrI2c_h
|