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Pixels_ILI9341.h
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Pixels_ILI9341.h
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/*
Pixels. Graphics library for TFT displays.
Copyright (C) 2012-2013 Igor Repinetski
The code is written in C/C++ for Arduino and can be easily ported to any microcontroller by rewritting the low level pin access functions.
Text output methods of the library rely on Pixelmeister's font data format. See: http://pd4ml.com/pixelmeister
This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
This library includes some code portions and algoritmic ideas derived from works of
- Andreas Schiffler -- aschiffler at ferzkopp dot net (SDL_gfx Project)
- K. Townsend http://microBuilder.eu (lpc1343codebase Project)
*/
/*
Pixels port to ILI9341 controller, SPI mode (ElecFreaks TFT2.2SP Shield)
SPI is in bit banging mode, as the shield does not connect the hardware SPI (SCL=13, SDA=11)
to the display controller
*/
#include "Pixels.h"
#ifndef PIXELS_ILI9341_H
#define PIXELS_ILI9341_H
#define PIXELS_MAIN
#if defined(PIXELS_ANTIALIASING_H)
#define PixelsBase PixelsAntialiased
#endif
class Pixels : public PixelsBase
#if defined(PIXELS_SPISW_H)
, public SPIsw
#elif defined(PIXELS_SPIHW_H)
, public SPIhw
#elif defined(PIXELS_PPI8_H)
, public PPI8
#elif defined(PIXELS_PPI16_H)
, public PPI16
#endif
{
protected:
void deviceWriteData(uint8_t high, uint8_t low) {
writeData(high, low);
}
void setRegion(int16_t x1, int16_t y1, int16_t x2, int16_t y2);
void quickFill(int b, int16_t x1, int16_t y1, int16_t x2, int16_t y2);
void setFillDirection(uint8_t direction);
void scrollCmd();
public:
Pixels() : PixelsBase(240, 320) { // ElecFreaks TFT2.2SP shield as default
scrollSupported = true;
setSpiPins(4, 3, 7, 5, 6); // dummy code in PPI case
setPpiPins(38, 39, 40, 41, 0); // dummy code in SPI case
}
Pixels(uint16_t width, uint16_t height) : PixelsBase(width, height) {
scrollSupported = true;
setSpiPins(4, 3, 7, 5, 6); // dummy code in PPI case
setPpiPins(38, 39, 40, 41, 0); // dummy code in SPI case
}
void init();
};
#if defined(PIXELS_ANTIALIASING_H)
#undef PixelsBase
#endif
void Pixels::init()
{
initInterface();
chipSelect();
writeCmd(0xCB);
writeData(0x39);
writeData(0x2C);
writeData(0x00);
writeData(0x34);
writeData(0x02);
writeCmd(0xCF);
writeData(0x00);
writeData(0XC1);
writeData(0X30);
writeCmd(0xE8);
writeData(0x85);
writeData(0x00);
writeData(0x78);
writeCmd(0xEA);
writeData(0x00);
writeData(0x00);
writeCmd(0xED);
writeData(0x64);
writeData(0x03);
writeData(0X12);
writeData(0X81);
writeCmd(0xF7);
writeData(0x20);
writeCmd(0xC0); //Power control
writeData(0x23); //VRH[5:0]
writeCmd(0xC1); //Power control
writeData(0x10); //SAP[2:0];BT[3:0]
writeCmd(0xC5); //VCM control
writeData(0x3e); //Contrast
writeData(0x28);
writeCmd(0xC7); //VCM control2
writeData(0x86); //--
writeCmd(0x36); // Memory Access Control
writeData(0x48); //C8 //48 68竖屏//28 E8 横屏
writeCmd(0x3A);
writeData(0x55);
writeCmd(0xB1);
writeData(0x00);
writeData(0x18);
writeCmd(0xB6); // Display Function Control
writeData(0x08);
writeData(0x82);
writeData(0x27);
/*
writeCmd(0xF2); // 3Gamma Function Disable
writeData(0x00);
writeCmd(0x26); //Gamma curve selected
writeData(0x01);
writeCmd(0xE0); //Set Gamma
writeData(0x0F);
writeData(0x31);
writeData(0x2B);
writeData(0x0C);
writeData(0x0E);
writeData(0x08);
writeData(0x4E);
writeData(0xF1);
writeData(0x37);
writeData(0x07);
writeData(0x10);
writeData(0x03);
writeData(0x0E);
writeData(0x09);
writeData(0x00);
writeCmd(0XE1); //Set Gamma
writeData(0x00);
writeData(0x0E);
writeData(0x14);
writeData(0x03);
writeData(0x11);
writeData(0x07);
writeData(0x31);
writeData(0xC1);
writeData(0x48);
writeData(0x08);
writeData(0x0F);
writeData(0x0C);
writeData(0x31);
writeData(0x36);
writeData(0x0F);
*/
writeCmd(0x11); //Exit Sleep
delay(120);
writeCmd(0x29); //Display on
writeCmd(0x2c);
chipDeselect();
}
void Pixels::scrollCmd()
{
chipSelect();
writeCmd(0x37);
writeData(highByte(currentScroll));
writeData(lowByte(currentScroll));
chipDeselect();
}
void Pixels::setFillDirection(uint8_t direction)
{
fillDirection = direction;
}
void Pixels::quickFill(int color, int16_t x1, int16_t y1, int16_t x2, int16_t y2)
{
chipSelect();
setRegion(x1, y1, x2, y2);
int32_t counter = (int32_t)(x2 - x1 + 1) * (y2 - y1 + 1);
registerSelect();
uint8_t lo = lowByte(color);
uint8_t hi = highByte(color);
for (int16_t i = 0; i < counter / 20; i++)
{
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
writeData(hi); writeData(lo);
}
for (int32_t i = 0; i < counter % 20; i++)
{
writeData(hi); writeData(lo);
}
chipDeselect();
}
void Pixels::setRegion(int16_t x1, int16_t y1, int16_t x2, int16_t y2)
{
if (orientation != PORTRAIT)
{
int16_t buf;
switch (orientation)
{
case LANDSCAPE:
buf = x1;
x1 = deviceWidth - y1 - 1;
y1 = buf;
buf = x2;
x2 = deviceWidth - y2 - 1;
y2 = buf;
break;
case PORTRAIT_FLIP:
y1 = deviceHeight - y1 - 1;
y2 = deviceHeight - y2 - 1;
x1 = deviceWidth - x1 - 1;
x2 = deviceWidth - x2 - 1;
break;
case LANDSCAPE_FLIP:
buf = y1;
y1 = deviceHeight - x1 - 1;
x1 = buf;
buf = y2;
y2 = deviceHeight - x2 - 1;
x2 = buf;
break;
}
if (x2 < x1)
{
swap(x1, x2);
}
if (y2 < y1)
{
swap(y1, y2);
}
}
writeCmd(0x2a);
writeData(x1 >> 8);
writeData(x1);
writeData(x2 >> 8);
writeData(x2);
writeCmd(0x2b);
writeData(y1 >> 8);
writeData(y1);
writeData(y2 >> 8);
writeData(y2);
writeCmd(0x2c);
}
#endif