SPI Library for 240x320 TFT LCD with ILI9320, ILI9325 and ILI9328 chip

Dependencies:   BurstSPI

Dependents:   KL25Z_ILI9320_Demo Mini-DK

Other LCD drivers

05-30-2014
Device initialization for ILI9325 and ILI9328 has been added to the library.
The library will auto-detect what driver chip is connected (ILI9320, ILI9325 or ILI9328) and use the appropriate init sequence.
Please use the Issues tab to report any problems.

SPI TFT library for LPC1768, LPC11U24 and KL25Z

Loading fonts

When using this libary, don't forget to load the TFT_FONTS library from Peter Drescher at http://mbed.org/users/dreschpe/code/TFT_fonts/

KL25Z : limitations

The filetoflash function (see below) is not available.
Writing to the LCD is a little slower as the KL25Z only supports 8-bit SPI communication.

LPC1768 and LPC11U24 : filetoflash (SD to CPU flash)

This library contains a function to copy an image from the SD card to the CPU flash memory.
It allows you to use an image as background without speed loss when writing other text and graphics.
By default, this option is enabled.
It can be disabled by adding following instruction BEFORE you load the library:

#define NO_FLASH_BUFFER

Since the flash memory has limited write endurance, DO NOT use this feature when you intend to read multiple images from the SD card (eg: when used as a photo frame).

Sample code

#include "mbed.h"

// SPI TFT demo
// NOTES
// - Connect the LCD reset pin to the reset pin of the CPU board or connect a
//   separate reset circuit to the LCD reset pin (pull-up 10k to 3v3 + 100nf capacitor to GND).
// - When using the mbed LPC1768 board, following hardware modifications are needed:
//       Connect the LCD reset pin to the nR input.
//       Connect a 100nF capacitor between the nR input and GND.
//       Connect a pushbutton parallel to the 100nF capacitor.
//   Use the new pushbutton as the reset button (instead of the LPC1768 on-board reset button).
#define NO_FLASH_BUFFER         // Do not use CPU flash for storing bitmaps
#include "SPI_TFT_ILI9320.h"
#include "Arial12x12.h"
#include "Arial24x23.h"
#include "Arial28x28.h"
#include "font_big.h"
SPI_TFT TFT(p11, p12, p13, p14,"TFT");  //mosi, miso, clk, cs

int main (void)
{

    TFT.claim(stdout);        // send stdout to the TFT display
    // Disable stdout buffering, allows us to omit \n with printf.
    // More info at http://www.cplusplus.com/reference/cstdio/setvbuf/
    setvbuf ( stdout , NULL , _IONBF , NULL );
    TFT.background(Black);    // set background to black
    TFT.foreground(White);    // set chars to white
    TFT.cls();                // clear the screen
    TFT.set_font((unsigned char*) Arial12x12);  // select the font

    TFT.locate(0,0);
    printf("ILI9320 SPI TFT library\n");
    printf("Simple demo\n");
}



Demo code LPC1768 (Mini-DK board)

Import programLPC1768_Mini-DK

LPC1768 Mini-DK board with 2.8" SPI TFT and SPI touch


Demo code FRDM-KL25Z board

Import programKL25Z_ILI9320_Demo

KL25Z driving an ILI9320 LCD board with touch panel (HY28A-LCDB SPI)

Committer:
frankvnk
Date:
Fri May 30 13:35:24 2014 +0000
Revision:
4:2519f2e680af
Parent:
0:630b4da97968
Added  ILI9325 and ILI9328 initialization

Who changed what in which revision?

UserRevisionLine numberNew contents of line
frankvnk 0:630b4da97968 1 /* mbed GraphicsDisplay Display Library Base Class
frankvnk 0:630b4da97968 2 * Copyright (c) 2007-2009 sford
frankvnk 0:630b4da97968 3 * Released under the MIT License: http://mbed.org/license/mit
frankvnk 0:630b4da97968 4 *
frankvnk 0:630b4da97968 5 * A library for providing a common base class for Graphics displays
frankvnk 0:630b4da97968 6 * To port a new display, derive from this class and implement
frankvnk 0:630b4da97968 7 * the constructor (setup the display), pixel (put a pixel
frankvnk 0:630b4da97968 8 * at a location), width and height functions. Everything else
frankvnk 0:630b4da97968 9 * (locate, printf, putc, cls, window, putp, fill, blit, blitbit)
frankvnk 0:630b4da97968 10 * will come for free. You can also provide a specialised implementation
frankvnk 0:630b4da97968 11 * of window and putp to speed up the results
frankvnk 0:630b4da97968 12 */
frankvnk 0:630b4da97968 13
frankvnk 0:630b4da97968 14 #ifndef MBED_GRAPHICSDISPLAY_H
frankvnk 0:630b4da97968 15 #define MBED_GRAPHICSDISPLAY_H
frankvnk 0:630b4da97968 16
frankvnk 0:630b4da97968 17 #include "TextDisplay.h"
frankvnk 0:630b4da97968 18
frankvnk 0:630b4da97968 19 class GraphicsDisplay : public TextDisplay {
frankvnk 0:630b4da97968 20
frankvnk 0:630b4da97968 21 public:
frankvnk 0:630b4da97968 22
frankvnk 0:630b4da97968 23 GraphicsDisplay(const char* name);
frankvnk 0:630b4da97968 24
frankvnk 0:630b4da97968 25 virtual void pixel(int x, int y, int colour) = 0;
frankvnk 0:630b4da97968 26 virtual int width() = 0;
frankvnk 0:630b4da97968 27 virtual int height() = 0;
frankvnk 0:630b4da97968 28
frankvnk 0:630b4da97968 29 virtual void window(int x, int y, int w, int h);
frankvnk 0:630b4da97968 30 virtual void putp(int colour);
frankvnk 0:630b4da97968 31
frankvnk 0:630b4da97968 32 virtual void cls();
frankvnk 0:630b4da97968 33 virtual void fill(int x, int y, int w, int h, int colour);
frankvnk 0:630b4da97968 34 virtual void blit(int x, int y, int w, int h, const int *colour);
frankvnk 0:630b4da97968 35 virtual void blitbit(int x, int y, int w, int h, const char* colour);
frankvnk 0:630b4da97968 36
frankvnk 0:630b4da97968 37 virtual void character(int column, int row, int value);
frankvnk 0:630b4da97968 38 virtual int columns();
frankvnk 0:630b4da97968 39 virtual int rows();
frankvnk 0:630b4da97968 40
frankvnk 0:630b4da97968 41 protected:
frankvnk 0:630b4da97968 42
frankvnk 0:630b4da97968 43 // pixel location
frankvnk 0:630b4da97968 44 short _x;
frankvnk 0:630b4da97968 45 short _y;
frankvnk 0:630b4da97968 46
frankvnk 0:630b4da97968 47 // window location
frankvnk 0:630b4da97968 48 short _x1;
frankvnk 0:630b4da97968 49 short _x2;
frankvnk 0:630b4da97968 50 short _y1;
frankvnk 0:630b4da97968 51 short _y2;
frankvnk 0:630b4da97968 52
frankvnk 0:630b4da97968 53 };
frankvnk 0:630b4da97968 54
frankvnk 0:630b4da97968 55 #endif