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- /***************************************************
- This is an example sketch for the Adafruit 2.2" SPI display.
- This library works with the Adafruit 2.2" TFT Breakout w/SD card
- ----> http://www.adafruit.com/products/1480
- Check out the links above for our tutorials and wiring diagrams
- These displays use SPI to communicate, 4 or 5 pins are required to
- interface (RST is optional)
- Adafruit invests time and resources providing this open source code,
- please support Adafruit and open-source hardware by purchasing
- products from Adafruit!
- Written by Limor Fried/Ladyada for Adafruit Industries.
- MIT license, all text above must be included in any redistribution
- ****************************************************/
- #include "SPI.h"
- #include "Adafruit_GFX.h"
- #include "Adafruit_ILI9340.h"
- #if defined(__SAM3X8E__)
- #undef __FlashStringHelper::F(string_literal)
- #define F(string_literal) string_literal
- #endif
- // These are the pins used for the UNO
- // for Due/Mega/Leonardo use the hardware SPI pins (which are different)
- #define _sclk 3
- #define _miso 1
- #define _mosi 4
- #define _cs 10
- #define _rst 5
- #define _dc 2
- // Using software SPI is really not suggested, its incredibly slow
- //Adafruit_ILI9340 tft = Adafruit_ILI9340(_cs, _dc, _mosi, _sclk, _rst, _miso);
- // Use hardware SPI
- Adafruit_ILI9340 tft = Adafruit_ILI9340(_cs, _dc, _rst);
- void setup() {
- Serial.begin(9600);
- Serial.println("Adafruit 2.2\" SPI TFT Test!");
- tft.begin();
- Serial.println(F("Benchmark Time (microseconds)"));
- Serial.print(F("Screen fill "));
- Serial.println(testFillScreen());
- delay(500);
- Serial.print(F("Text "));
- Serial.println(testText());
- delay(3000);
- Serial.print(F("Lines "));
- Serial.println(testLines(ILI9340_CYAN));
- delay(500);
- Serial.print(F("Horiz/Vert Lines "));
- Serial.println(testFastLines(ILI9340_RED, ILI9340_BLUE));
- delay(500);
- Serial.print(F("Rectangles (outline) "));
- Serial.println(testRects(ILI9340_GREEN));
- delay(500);
- Serial.print(F("Rectangles (filled) "));
- Serial.println(testFilledRects(ILI9340_YELLOW, ILI9340_MAGENTA));
- delay(500);
- Serial.print(F("Circles (filled) "));
- Serial.println(testFilledCircles(10, ILI9340_MAGENTA));
- Serial.print(F("Circles (outline) "));
- Serial.println(testCircles(10, ILI9340_WHITE));
- delay(500);
- Serial.print(F("Triangles (outline) "));
- Serial.println(testTriangles());
- delay(500);
- Serial.print(F("Triangles (filled) "));
- Serial.println(testFilledTriangles());
- delay(500);
- Serial.print(F("Rounded rects (outline) "));
- Serial.println(testRoundRects());
- delay(500);
- Serial.print(F("Rounded rects (filled) "));
- Serial.println(testFilledRoundRects());
- delay(500);
- Serial.println(F("Done!"));
- }
- void loop(void) {
- for(uint8_t rotation=0; rotation<4; rotation++) {
- tft.setRotation(rotation);
- testText();
- delay(2000);
- }
- }
- unsigned long testFillScreen() {
- unsigned long start = micros();
- tft.fillScreen(ILI9340_BLACK);
- tft.fillScreen(ILI9340_RED);
- tft.fillScreen(ILI9340_GREEN);
- tft.fillScreen(ILI9340_BLUE);
- tft.fillScreen(ILI9340_BLACK);
- return micros() - start;
- }
- unsigned long testText() {
- tft.fillScreen(ILI9340_BLACK);
- unsigned long start = micros();
- tft.setCursor(0, 0);
- tft.setTextColor(ILI9340_WHITE); tft.setTextSize(1);
- tft.println("Hello World!");
- tft.setTextColor(ILI9340_YELLOW); tft.setTextSize(2);
- tft.println(1234.56);
- tft.setTextColor(ILI9340_RED); tft.setTextSize(3);
- tft.println(0xDEADBEEF, HEX);
- tft.println();
- tft.setTextColor(ILI9340_GREEN);
- tft.setTextSize(5);
- tft.println("Groop");
- tft.setTextSize(2);
- tft.println("I implore thee,");
- tft.setTextSize(1);
- tft.println("my foonting turlingdromes.");
- tft.println("And hooptiously drangle me");
- tft.println("with crinkly bindlewurdles,");
- tft.println("Or I will rend thee");
- tft.println("in the gobberwarts");
- tft.println("with my blurglecruncheon,");
- tft.println("see if I don't!");
- return micros() - start;
- }
- unsigned long testLines(uint16_t color) {
- unsigned long start, t;
- int x1, y1, x2, y2,
- w = tft.width(),
- h = tft.height();
- tft.fillScreen(ILI9340_BLACK);
- x1 = y1 = 0;
- y2 = h - 1;
- start = micros();
- for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = w - 1;
- for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
- t = micros() - start; // fillScreen doesn't count against timing
- tft.fillScreen(ILI9340_BLACK);
- x1 = w - 1;
- y1 = 0;
- y2 = h - 1;
- start = micros();
- for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = 0;
- for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
- t += micros() - start;
- tft.fillScreen(ILI9340_BLACK);
- x1 = 0;
- y1 = h - 1;
- y2 = 0;
- start = micros();
- for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = w - 1;
- for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
- t += micros() - start;
- tft.fillScreen(ILI9340_BLACK);
- x1 = w - 1;
- y1 = h - 1;
- y2 = 0;
- start = micros();
- for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
- x2 = 0;
- for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
- return micros() - start;
- }
- unsigned long testFastLines(uint16_t color1, uint16_t color2) {
- unsigned long start;
- int x, y, w = tft.width(), h = tft.height();
- tft.fillScreen(ILI9340_BLACK);
- start = micros();
- for(y=0; y<h; y+=5) tft.drawFastHLine(0, y, w, color1);
- for(x=0; x<w; x+=5) tft.drawFastVLine(x, 0, h, color2);
- return micros() - start;
- }
- unsigned long testRects(uint16_t color) {
- unsigned long start;
- int n, i, i2,
- cx = tft.width() / 2,
- cy = tft.height() / 2;
- tft.fillScreen(ILI9340_BLACK);
- n = min(tft.width(), tft.height());
- start = micros();
- for(i=2; i<n; i+=6) {
- i2 = i / 2;
- tft.drawRect(cx-i2, cy-i2, i, i, color);
- }
- return micros() - start;
- }
- unsigned long testFilledRects(uint16_t color1, uint16_t color2) {
- unsigned long start, t = 0;
- int n, i, i2,
- cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
- tft.fillScreen(ILI9340_BLACK);
- n = min(tft.width(), tft.height());
- for(i=n; i>0; i-=6) {
- i2 = i / 2;
- start = micros();
- tft.fillRect(cx-i2, cy-i2, i, i, color1);
- t += micros() - start;
- // Outlines are not included in timing results
- tft.drawRect(cx-i2, cy-i2, i, i, color2);
- }
- return t;
- }
- unsigned long testFilledCircles(uint8_t radius, uint16_t color) {
- unsigned long start;
- int x, y, w = tft.width(), h = tft.height(), r2 = radius * 2;
- tft.fillScreen(ILI9340_BLACK);
- start = micros();
- for(x=radius; x<w; x+=r2) {
- for(y=radius; y<h; y+=r2) {
- tft.fillCircle(x, y, radius, color);
- }
- }
- return micros() - start;
- }
- unsigned long testCircles(uint8_t radius, uint16_t color) {
- unsigned long start;
- int x, y, r2 = radius * 2,
- w = tft.width() + radius,
- h = tft.height() + radius;
- // Screen is not cleared for this one -- this is
- // intentional and does not affect the reported time.
- start = micros();
- for(x=0; x<w; x+=r2) {
- for(y=0; y<h; y+=r2) {
- tft.drawCircle(x, y, radius, color);
- }
- }
- return micros() - start;
- }
- unsigned long testTriangles() {
- unsigned long start;
- int n, i, cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
- tft.fillScreen(ILI9340_BLACK);
- n = min(cx, cy);
- start = micros();
- for(i=0; i<n; i+=5) {
- tft.drawTriangle(
- cx , cy - i, // peak
- cx - i, cy + i, // bottom left
- cx + i, cy + i, // bottom right
- tft.Color565(0, 0, i));
- }
- return micros() - start;
- }
- unsigned long testFilledTriangles() {
- unsigned long start, t = 0;
- int i, cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
- tft.fillScreen(ILI9340_BLACK);
- start = micros();
- for(i=min(cx,cy); i>10; i-=5) {
- start = micros();
- tft.fillTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
- tft.Color565(0, i, i));
- t += micros() - start;
- tft.drawTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
- tft.Color565(i, i, 0));
- }
- return t;
- }
- unsigned long testRoundRects() {
- unsigned long start;
- int w, i, i2,
- cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
- tft.fillScreen(ILI9340_BLACK);
- w = min(tft.width(), tft.height());
- start = micros();
- for(i=0; i<w; i+=6) {
- i2 = i / 2;
- tft.drawRoundRect(cx-i2, cy-i2, i, i, i/8, tft.Color565(i, 0, 0));
- }
- return micros() - start;
- }
- unsigned long testFilledRoundRects() {
- unsigned long start;
- int i, i2,
- cx = tft.width() / 2 - 1,
- cy = tft.height() / 2 - 1;
- tft.fillScreen(ILI9340_BLACK);
- start = micros();
- for(i=min(tft.width(), tft.height()); i>20; i-=6) {
- i2 = i / 2;
- tft.fillRoundRect(cx-i2, cy-i2, i, i, i/8, tft.Color565(0, i, 0));
- }
- return micros() - start;
- }
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