Hi. I have an OPEN-SMART 3.2" ILI9327 TFT shield with Ardiuino MEGA 2560
I am using Adafriuit GFX and TFT-LCD libraries
Picture:
It is printing out of margins and uncentered in all the 4 rotation positions.
Can I correct this issue by modifying the libraries? I would appreciate if someone could indicate where to start.
Thank you
Here is my testing code:
//Rotation test for 3.2" TFT LCD ILI9327
#include <Adafruit_GFX.h> // https://github.com/adafruit/Adafruit-GFX-Library
#include <Adafruit_TFTLCD.h> // https://github.com/adafruit/TFTLCD-Library
#define LCD_CS A3 // Chip Select
#define LCD_CD A2 // Command/Data
#define LCD_WR A1 // LCD Write
#define LCD_RD A0 // LCD Read
#define LCD_RESET A4
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
int rotation = 0;
Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
void setup(void) {
Serial.begin(9600);
tft.reset();
uint16_t identifier = tft.readID(); // returns 0x9327 for ILI9327 LCD driver
tft.begin(identifier);
}
void testLines() {
tft.setRotation(rotation);
tft.fillScreen(BLACK);
int x1, y1, x2, y2,
w = tft.width(),
h = tft.height();
Serial.print("w="); Serial.print(w); Serial.print(", h="); Serial.println(h);
tft.setCursor(0, 0);
tft.setTextColor(WHITE); tft.setTextSize(3);
tft.println("Rotation test");
tft.print("Rotation = "); tft.println(rotation);
//Draw a rectangle around the screen
tft.drawRect(0, 0, w, h, BLUE);
//Draw crossing lines
tft.drawLine(0, 0, w, h, GREEN);
tft.drawLine(0, w, h, 0, YELLOW);
//Draw a circle at the screen center
tft.fillCircle(w / 2, h / 2, 5, RED);
//Draw a triangle at the screen center
int cx = w / 2, cy = h / 2, i = 30;
tft.drawTriangle(
cx , cy - i, // peak
cx - i, cy + i, // bottom left
cx + i, cy + i, // bottom right
MAGENTA);
}
void loop(void) {
for (rotation = 0; rotation <= 3; rotation++) {
testLines();
delay (10000);
}
}
And the results in all the rotating positions:
