中景园电子0.96OLED显示屏_arduino_IIC_例程+SPI_例程工程源码.zip

中景园电子0.96OLED显示屏_arduino_IIC_例程+SPI_例程工程源码： void Adafruit_SSD1306::startscrolldiagleft(uint8_t start, uint8_t stop){ ssd1306_command(SSD1306_SET_VERTICAL_SCROLL_AREA); ssd1306_command(0X00); ssd1306_command(SSD1306_LCDHEIGHT); ssd1306_command(SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL); ssd1306_command(0X00); ssd1306_command(start); ssd1306_command(0X00); ssd1306_command(stop); ssd1306_command(0X01); ssd1306_command(SSD1306_ACTIVATE_SCROLL); } void Adafruit_SSD1306::stopscroll(void){ ssd1306_command(SSD1306_DEACTIVATE_SCROLL); } void Adafruit_SSD1306::ssd1306_data(uint8_t c) { if (sid != -1) { // SPI //digitalWrite(cs, HIGH); *csport |= cspinmask; //digitalWrite(dc, HIGH); *dcport |= dcpinmask; //digitalWrite(cs, LOW); *csport &= ~cspinmask; fastSPIwrite(c); //digitalWrite(cs, HIGH); *csport |= cspinmask; } else { // I2C uint8_t control = 0x40; // Co = 0, D/C = 1 Wire.beginTransmission(_i2caddr); Wire.write(control); Wire.write(c); Wire.endTransmission(); } } void Adafruit_SSD1306::display(void) { ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0 ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0 ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0 if (sid != -1) { // SPI *csport |= cspinmask; *dcport |= dcpinmask; *csport &= ~cspinmask; for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i++) { fastSPIwrite(buffer[i]); //ssd1306_data(buffer[i]); } // i wonder why we have to do this (check datasheet) if (SSD1306_LCDHEIGHT == 32) { for (uint16_t i=0; i<(SSD1306_LCDWIDTH*SSD1306_LCDHEIGHT/8); i++) { //ssd1306_data(0); fastSPIwrite(0); } } *csport |= cspinmask; } else { // save I2C bitrate uint8_t twbrbackup = TWBR; TWBR = 12; // upgrade to 400KHz! //Serial.println(TWBR, DEC); //Serial.println(TWSR & 0x3, DEC); // I2C