framework-arduinoteensy-cxx20/libraries/RA8875/Examples/_DUE/scroll/scroll.ino

/*
Basic Scroll example
 Works with Arduino 1.0.6 IDE, Arduino 1.6.x IDE
*/


#include <SPI.h>
#include <RA8875.h>


#define RA8875_CS 10

#define RA8875_RESET 9//any pin or nothing!

RA8875 tft = RA8875(RA8875_CS, RA8875_RESET);


void setup()
{
  Serial.begin(9600);
  //while (!Serial) {;}
  Serial.println("RA8875 start");
  //initialization routine
  tft.begin(RA8875_800x480);
  //tft.setRotation(1);

  tft.println("Once upon a midnight dreary, while I pondered, weak and weary,");
  tft.println("Over many a quaint and curious volume of forgotten lore,");
  tft.println("While I nodded, nearly napping, suddenly there came a tapping,");
  tft.println("As of some one gently rapping, rapping at my chamber door.");
  tft.println("'Tis some visitor,' I muttered, 'tapping at my chamber door Only this, and nothing more.'");
  tft.println("");
  tft.println("Ah, distinctly I remember it was in the bleak December,");
  tft.println("And each separate dying ember wrought its ghost upon the floor.");
  tft.println("Eagerly I wished the morrow;- vainly I had sought to borrow");
  tft.println("From my books surcease of sorrow- sorrow for the lost Lenore-");
  tft.println("For the rare and radiant maiden whom the angels name Lenore-");
  tft.println("Nameless here for evermore.");
}



void loop()
{
  tft.setScrollWindow(0, tft.width() - 1, 0, 80);	//Specifies scrolling activity area
  uint16_t i;
  for (i = 0; i < 80; i++) {
    tft.scroll(0, i);
    delay(10);
  }
  delay(500);
  for (i = 79; i > 0; i--) {
    tft.scroll(0, i);
    delay(10);
  }
  delay(500);
  for (i = 0; i < tft.width(); i++) {
    tft.scroll(i, 0);
    delay(5);
  }
  delay(500);
  for (i = tft.width() - 1; i > 0; i--) {
    tft.scroll(i, 0);
    delay(5);
  }
  delay(500);
}