经过了一段时间的学习,慢慢的对TFT 有一些些的了解,对于我们这些初学者来说,写驱动那是不可能的事情,唯一能做的就是看得懂驱动是啥、或者是很好的阅读驱动程序即可。如果是应用,那会这些足矣!如果是开发的,那还需要更多的学习和了解。之前群里的Zzz玩过TFT 3.2+mega2560的,只是他时间有点忙吧,没时间出来写测评,我现在能驱动了,就出来说一下是怎么用的吧。欢迎大家一起讨论实验中的问题,毕竟把问题都回答完了就会理解一点的。
介绍
HY-TFT320是一个3.2英寸屏幕的TFT液晶模块,320X240(分辨率),65K色,40引脚接口,而不只是一个LCD的模块,因为它包含触摸功能和SD卡,所以这是一个强大的显示扩展模块。这个TFT的控制IC是SSD1289,它是16位数据接口的,相对比较容易驱动它,我们可以使用STM32、AVR、8051单片机对它进行控制,HY-TFT320里面也包含了一个触摸控制IC(XPT2046),而且触摸接口也是包含在屏幕的40引脚中,其中还含有SD卡相应的接口,所以此块TFT模块功能还算是比较丰富的。
规格:
1、3.2寸彩屏TFT LCD
2、分辨率 320X240
3、65535种颜色(16位)
4、强大的16位控制器(SSD1289)
5、内置视频内存缓冲区
6、集成电阻触摸屏
7、集成SD卡
8、5V操作电压
9、LED背光
应用
数码相框(DPF)
视频终端
测试设备
GPS
游戏机
视频电视和便携式VCD、DVD
引脚定义:
首先所使用的器材:
一个mega 2560
一个mega V4 扩展板
一个 TFT 3.2寸(主控IC是SSD1289 、触控IC是XPT2046)
一条USB线
若干条杜邦线等等
在这里引用一下本链接的学习资料:http://www.geeetech.com/2012/04/ ... -module-to-arduino/
大概的连接方法是这样的:
(LEDK -> GND) only 3.2″ TFT LCD
LEDA -> 5V
VCC -> 5V
RD -> 3.3V
GND -> GND
DB0->DB7 to pin D37->D30
DB8->DB15 to pin D22->D29
RS -> D38
WR -> D39
CS(pin6) -> D40
RSET-> D41
把线连接好以后,需要把这个库文件拷到Arduino IDE libraries 里面!
看一下我们的实物连接图!
下面是主要的代码!因为现在对于我的TFT 3.2寸没有合适的转接板,所以需要我们一条条连连起来,除非需要自己画一个转接板,这样用起来就方便很多很多啊!ARDUINO 代码复制打印
- #include h>
- // Declare which fonts we will be using
- extern uint8_t SmallFont[;
- // Uncomment the next line for the ITDB02 Shield
- //ITDB02 myGLCD(19,18,17,16);
- // Uncomment the next line for the ITDB02 Mega Shield
- ITDB02 myGLCD(38,39,40,41);
- void setup()
- {
- randomSeed(analogRead(0));
- // Setup the LCD
- myGLCD.InitLCD();
- myGLCD.setFont(SmallFont);
- }
- void loop()
- {
- int buf[238;
- int x, x2;
- int y, y2;
- int r;
- // Clear the screen and draw the frame
- myGLCD.clrScr();
- myGLCD.setColor(255, 0, 0);
- myGLCD.fillRect(0, 0, 239, 13);
- myGLCD.setColor(64, 64, 64);
- myGLCD.fillRect(0, 306, 239, 319);
- myGLCD.setColor(255, 255, 255);
- myGLCD.setBackColor(255, 0, 0);
- myGLCD.print("ITDB02 - 240x320 Color Display", CENTER, 1);
- myGLCD.setColor(255, 128, 128);
- myGLCD.setBackColor(64, 64, 64);
- myGLCD.print("H.Karlsen", LEFT, 307);
- myGLCD.print("(C)2010", RIGHT, 307);
- myGLCD.setColor(255,255,0);
- myGLCD.print("Portrait", CENTER, 307);
- myGLCD.setColor(0, 0, 255);
- myGLCD.drawLine(0, 14, 239, 14);
- myGLCD.drawLine(0, 14, 0, 305);
- myGLCD.drawLine(239, 14, 239, 305);
- myGLCD.drawLine(0, 305, 239, 305);
- // Draw crosshairs
- myGLCD.setColor(0, 0, 255);
- myGLCD.setBackColor(0, 0, 0);
- myGLCD.drawLine(119, 15, 119, 304);
- myGLCD.drawLine(1, 159, 238, 159);
- for (int i=9; i<240; i+=10)
- myGLCD.drawLine(i, 157, i, 161);
- for (int i=19; i<300; i+=10)
- myGLCD.drawLine(117, i, 121, i);
- // Draw sin-, cos- and tan-lines
- myGLCD.setColor(0,255,255);
- myGLCD.print("Sin", 5, 15);
- for (int i=1; i<238; i++)
- {
- myGLCD.drawPixel(i,159+(sin(((i*1.51)*3.14)/180)*100));
- }
- myGLCD.setColor(255,0,0);
- myGLCD.print("Cos", 5, 27);
- for (int i=1; i<238; i++)
- {
- myGLCD.drawPixel(i,159+(cos(((i*1.51)*3.14)/180)*100));
- }
- myGLCD.setColor(255,255,0);
- myGLCD.print("Tan", 5, 39);
- for (int i=1; i<238; i++)
- {
- myGLCD.drawPixel(i,159+(tan(((i*1.51)*3.14)/180)));
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(1,15,238,304);
- myGLCD.setColor(0, 0, 255);
- myGLCD.setBackColor(0, 0, 0);
- myGLCD.drawLine(119, 15, 119, 304);
- myGLCD.drawLine(1, 159, 238, 159);
- // Draw a moving sinewave
- x=1;
- for (int i=1; i<6902; i++)
- {
- x++;
- if (x==239)
- x=1;
- if (i>239)
- {
- if ((x==119)||(buf[x-1==159))
- myGLCD.setColor(0,0,255);
- else
- myGLCD.setColor(0,0,0);
- myGLCD.drawPixel(x,buf[x-1);
- }
- myGLCD.setColor(0,255,255);
- y=159+(sin(((i*1.4)*3.14)/180)*(100-(i / 100)));
- myGLCD.drawPixel(x,y);
- buf[x-1=y;
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(1,15,238,304);
- // Draw some filled rectangles
- for (int i=1; i<6; i++)
- {
- switch (i)
- {
- case 1:
- myGLCD.setColor(255,0,255);
- break;
- case 2:
- myGLCD.setColor(255,0,0);
- break;
- case 3:
- myGLCD.setColor(0,255,0);
- break;
- case 4:
- myGLCD.setColor(0,0,255);
- break;
- case 5:
- myGLCD.setColor(255,255,0);
- break;
- }
- myGLCD.fillRect(30+(i*20), 70+(i*20), 90+(i*20), 130+(i*20));
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(1,15,238,304);
- // Draw some filled, rounded rectangles
- for (int i=1; i<6; i++)
- {
- switch (i)
- {
- case 1:
- myGLCD.setColor(255,0,255);
- break;
- case 2:
- myGLCD.setColor(255,0,0);
- break;
- case 3:
- myGLCD.setColor(0,255,0);
- break;
- case 4:
- myGLCD.setColor(0,0,255);
- break;
- case 5:
- myGLCD.setColor(255,255,0);
- break;
- }
- myGLCD.fillRoundRect(150-(i*20),70+(i*20), 210-(i*20), 130+(i*20));
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(1,15,238,304);
- // Draw some filled circles
- for (int i=1; i<6; i++)
- {
- switch (i)
- {
- case 1:
- myGLCD.setColor(255,0,255);
- break;
- case 2:
- myGLCD.setColor(255,0,0);
- break;
- case 3:
- myGLCD.setColor(0,255,0);
- break;
- case 4:
- myGLCD.setColor(0,0,255);
- break;
- case 5:
- myGLCD.setColor(255,255,0);
- break;
- }
- myGLCD.fillCircle(60+(i*20),100+(i*20), 30);
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(1,15,238,304);
- // Draw some lines in a pattern
- myGLCD.setColor (255,0,0);
- for (int i=15; i<304; i+=5)
- {
- myGLCD.drawLine(1, i, (i/1.22)-10, 304);
- }
- myGLCD.setColor (255,0,0);
- for (int i=304; i>15; i-=5)
- {
- myGLCD.drawLine(238, i, (i/1.22)-11, 15);
- }
- myGLCD.setColor (0,255,255);
- for (int i=304; i>15; i-=5)
- {
- myGLCD.drawLine(1, i, 251-(i/1.22), 15);
- }
- myGLCD.setColor (0,255,255);
- for (int i=15; i<304; i+=5)
- {
- myGLCD.drawLine(238, i, 250-(i/1.22), 304);
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(1,15,238,304);
- // Draw some random circles
- for (int i=0; i<100; i++)
- {
- myGLCD.setColor(random(255), random(255), random(255));
- x=32+random(175);
- y=45+random(212);
- r=random(30);
- myGLCD.drawCircle(x, y, r);
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(1,15,238,304);
- // Draw some random rectangles
- for (int i=0; i<100; i++)
- {
- myGLCD.setColor(random(255), random(255), random(255));
- x=2+random(236);
- y=16+random(287);
- x2=2+random(236);
- y2=16+random(287);
- myGLCD.drawRect(x, y, x2, y2);
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(1,15,238,304);
- // Draw some random rounded rectangles
- for (int i=0; i<100; i++)
- {
- myGLCD.setColor(random(255), random(255), random(255));
- x=2+random(236);
- y=16+random(287);
- x2=2+random(236);
- y2=16+random(287);
- myGLCD.drawRoundRect(x, y, x2, y2);
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(2,16,238,304);
- for (int i=0; i<100; i++)
- {
- myGLCD.setColor(random(255), random(255), random(255));
- x=2+random(236);
- y=16+random(289);
- x2=2+random(236);
- y2=16+random(289);
- myGLCD.drawLine(x, y, x2, y2);
- }
- delay(2000);
- myGLCD.setColor(0,0,0);
- myGLCD.fillRect(1,15,238,304);
- for (int i=0; i<10000; i++)
- {
- myGLCD.setColor(random(255), random(255), random(255));
- myGLCD.drawPixel(2+random(236), 16+random(289));
- }
- delay(2000);
- myGLCD.fillScr(0, 0, 255);
- myGLCD.setColor(255, 0, 0);
- myGLCD.fillRoundRect(30, 100, 209, 219);
- myGLCD.setColor(255, 255, 255);
- myGLCD.setBackColor(255, 0, 0);
- myGLCD.print("That's it!", CENTER, 133);
- myGLCD.print("Restarting in a", CENTER, 159);
- myGLCD.print("few seconds...", CENTER, 172);
- myGLCD.setColor(0, 0, 0);
- myGLCD.setBackColor(0, 0, 255);
- myGLCD.print("Runtime: (msecs)", CENTER, 290);
- myGLCD.printNumI(millis(), CENTER, 305);
- delay (10000);
- }
所用到的库文件!
geeetech.com.zip (287.71 KB, 下载次数: 377) |