Oxford CWM Team / Mbed 2 deprecated TFT_Mikroelectronika_IL9341

Library (as yet untested) for use with the Mikroelectronics tft_proto screens

Dependencies:   SPI_TFT_ILI9341 TFT_fonts mbed

Fork of TFT_banggood by chris stevens

main.cpp@6:18c7288b5e00, 2016-06-14 (annotated)

Committer:
cstevens
Date:
Tue Jun 14 11:01:24 2016 +0000
Revision:
6:18c7288b5e00
Parent:
5:424af4fa03ab 
touch nearly working;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cstevens 4:14043cafbec7 1 // example to test the TFT Display from Mikroelectronika
dreschpe 0:7c3b9bfd6ead 2
dreschpe 0:7c3b9bfd6ead 3 #include "stdio.h"
dreschpe 0:7c3b9bfd6ead 4 #include "mbed.h"
dreschpe 0:7c3b9bfd6ead 5 #include "SPI_TFT_ILI9341.h"
dreschpe 0:7c3b9bfd6ead 6 #include "string"
dreschpe 0:7c3b9bfd6ead 7 #include "Arial12x12.h"
dreschpe 0:7c3b9bfd6ead 8 #include "Arial24x23.h"
dreschpe 0:7c3b9bfd6ead 9 #include "Arial28x28.h"
dreschpe 0:7c3b9bfd6ead 10 #include "font_big.h"
cstevens 4:14043cafbec7 11
cstevens 6:18c7288b5e00 12
cstevens 6:18c7288b5e00 13 Serial pc (USBTX,USBRX);
cstevens 4:14043cafbec7 14
dreschpe 0:7c3b9bfd6ead 15
dreschpe 0:7c3b9bfd6ead 16
pegcjs 3:676adf84c914 17
cstevens 6:18c7288b5e00 18 // the display has a backlight switch on board
cstevens 6:18c7288b5e00 19 DigitalOut LCD_LED(PTA13); // may not be needed on mikroelectronika board
cstevens 5:424af4fa03ab 20 DigitalOut pwr(PTD7); // ditto
dreschpe 0:7c3b9bfd6ead 21
dreschpe 0:7c3b9bfd6ead 22 // the TFT is connected to SPI pin 5-7
pegcjs 1:e0479f60cd48 23 //SPI_TFT_ILI9341 TFT(p5, p6, p7, p8, p9, p10,"TFT"); // mosi, miso, sclk, cs, reset, dc for lpc1768
cstevens 5:424af4fa03ab 24 SPI_TFT_ILI9341 TFT(PTD2, PTD3, PTD1, PTD5, PTD0, PTA13,"TFT"); // mosi, miso, sclk, cs, reset, dc for frdmkl25z
cstevens 6:18c7288b5e00 25 //NB better combination to use a coherent 2x4 block for lcd
pegcjs 3:676adf84c914 26 // SPI_TFT_ILI9341 TFT(PTD2, PTD3, PTD1, PTA16, PTA17, PTC16,"TFT"); // mosi, miso, sclk, cs, reset, dc for frdmkl25z
cstevens 6:18c7288b5e00 27 // DigitalOut LCD_LED(PTC17);
cstevens 6:18c7288b5e00 28
cstevens 6:18c7288b5e00 29
cstevens 6:18c7288b5e00 30 // Subroutine to read the x location of the touch point
cstevens 6:18c7288b5e00 31 // need to set x+ to 3V and ground x- then read analogue voltage on ym
cstevens 6:18c7288b5e00 32 //nb need to add a check for actual touch as opposed to random crap
cstevens 6:18c7288b5e00 33 int readX()
cstevens 6:18c7288b5e00 34 {
cstevens 6:18c7288b5e00 35 AnalogIn yp(PTB2);
cstevens 6:18c7288b5e00 36 AnalogIn ym(PTB3);
cstevens 6:18c7288b5e00 37 DigitalOut xp(PTB0);
cstevens 6:18c7288b5e00 38 DigitalOut xm(PTB1);
cstevens 6:18c7288b5e00 39
cstevens 6:18c7288b5e00 40 xp=1; // set positive sdie of x high
cstevens 6:18c7288b5e00 41 xm=0;
cstevens 6:18c7288b5e00 42 // dont need to do anyhting to set low side as it should be fine.
cstevens 6:18c7288b5e00 43 // but do need to disconnect yp
cstevens 6:18c7288b5e00 44 //yp.PinMode(PullNone)
cstevens 6:18c7288b5e00 45 int xval=(int)ym.read_u16(); // get value
cstevens 6:18c7288b5e00 46 return(xval);
cstevens 6:18c7288b5e00 47 }
cstevens 6:18c7288b5e00 48 // subroutine to read y values - has different pin functions ..
cstevens 6:18c7288b5e00 49 int readY()
cstevens 6:18c7288b5e00 50 {
cstevens 6:18c7288b5e00 51 DigitalOut yp(PTB2);
cstevens 6:18c7288b5e00 52 DigitalOut ym(PTB3);
cstevens 6:18c7288b5e00 53 AnalogIn xp(PTB0);
cstevens 6:18c7288b5e00 54 AnalogIn xm(PTB1);
cstevens 6:18c7288b5e00 55
cstevens 6:18c7288b5e00 56 yp=1; // set positive sdie of x high
cstevens 6:18c7288b5e00 57 ym=0;
cstevens 6:18c7288b5e00 58 // dont need to do anyhting to set low side as it should be fine.
cstevens 6:18c7288b5e00 59 // but do need to disconnect yp
cstevens 6:18c7288b5e00 60 //yp.PinMode(PullNone)
cstevens 6:18c7288b5e00 61 int yval=(int)xm.read_u16(); // get value
cstevens 6:18c7288b5e00 62 return(yval);
cstevens 6:18c7288b5e00 63 }
cstevens 6:18c7288b5e00 64
cstevens 6:18c7288b5e00 65
cstevens 4:14043cafbec7 66
dreschpe 0:7c3b9bfd6ead 67 int main()
dreschpe 0:7c3b9bfd6ead 68 {
cstevens 6:18c7288b5e00 69 pc.baud(115200);
cstevens 6:18c7288b5e00 70
cstevens 6:18c7288b5e00 71 int xpos=0,ypos=0,xp=0,yp=0;
pegcjs 3:676adf84c914 72 pwr=1;
pegcjs 3:676adf84c914 73 wait(0.2);
cstevens 6:18c7288b5e00 74
dreschpe 0:7c3b9bfd6ead 75 int i;
pegcjs 2:25bfb21253a6 76 LCD_LED = 1; // backlight on
cstevens 6:18c7288b5e00 77
dreschpe 0:7c3b9bfd6ead 78 TFT.claim(stdout); // send stdout to the TFT display
dreschpe 0:7c3b9bfd6ead 79 TFT.set_orientation(1);
dreschpe 0:7c3b9bfd6ead 80 TFT.background(Black); // set background to black
dreschpe 0:7c3b9bfd6ead 81 TFT.foreground(White); // set chars to white
dreschpe 0:7c3b9bfd6ead 82 TFT.cls(); // clear the screen
dreschpe 0:7c3b9bfd6ead 83
dreschpe 0:7c3b9bfd6ead 84 //first show the 4 directions
dreschpe 0:7c3b9bfd6ead 85 TFT.set_orientation(0);
dreschpe 0:7c3b9bfd6ead 86 TFT.background(Black);
dreschpe 0:7c3b9bfd6ead 87 TFT.cls();
dreschpe 0:7c3b9bfd6ead 88
dreschpe 0:7c3b9bfd6ead 89 TFT.set_font((unsigned char*) Arial12x12);
dreschpe 0:7c3b9bfd6ead 90 TFT.locate(0,0);
cstevens 6:18c7288b5e00 91 printf(" 0 Hello Mbed 0");
dreschpe 0:7c3b9bfd6ead 92 TFT.set_orientation(1);
dreschpe 0:7c3b9bfd6ead 93 TFT.locate(0,0);
cstevens 6:18c7288b5e00 94 printf(" 1 Hello Mbed 1");
dreschpe 0:7c3b9bfd6ead 95 TFT.set_orientation(2);
dreschpe 0:7c3b9bfd6ead 96 TFT.locate(0,0);
cstevens 6:18c7288b5e00 97 printf(" 2 Hello Mbed 2");
dreschpe 0:7c3b9bfd6ead 98 TFT.set_orientation(3);
dreschpe 0:7c3b9bfd6ead 99 TFT.locate(0,0);
cstevens 6:18c7288b5e00 100 printf(" 3 Hello Mbed 3");
pegcjs 1:e0479f60cd48 101 TFT.set_orientation(3);
dreschpe 0:7c3b9bfd6ead 102 TFT.set_font((unsigned char*) Arial24x23);
dreschpe 0:7c3b9bfd6ead 103 TFT.locate(50,100);
cstevens 6:18c7288b5e00 104 TFT.printf("TFT orientation 3");
cstevens 6:18c7288b5e00 105 TFT.set_orientation(1);
cstevens 6:18c7288b5e00 106 for(i=0; i<10; i++) {
cstevens 6:18c7288b5e00 107 wait(1); // wait one seconds
cstevens 6:18c7288b5e00 108 TFT.locate(50,160);
cstevens 6:18c7288b5e00 109 TFT.printf("count %d",i);
cstevens 6:18c7288b5e00 110 }
cstevens 6:18c7288b5e00 111 TFT.set_orientation(1);
cstevens 6:18c7288b5e00 112 TFT.cls();
cstevens 6:18c7288b5e00 113 // LCD_LED = 1;
cstevens 6:18c7288b5e00 114 TFT.circle(120,120,10,0xffff);
cstevens 6:18c7288b5e00 115 while(1==1) {
dreschpe 0:7c3b9bfd6ead 116
cstevens 6:18c7288b5e00 117 xpos=readX();
cstevens 6:18c7288b5e00 118 ypos=readY();
cstevens 6:18c7288b5e00 119 pc.printf("xpos=%d\t,\typo=%d",xpos,ypos);
cstevens 6:18c7288b5e00 120 xp=(240*xpos)/60000;
cstevens 6:18c7288b5e00 121 yp=(320*ypos)/60000;
cstevens 6:18c7288b5e00 122 pc.printf("\txp=%d\t,\typo=%d\n\r",xp,yp);
cstevens 6:18c7288b5e00 123 if(xp>5 && yp>5) TFT.circle(xp,yp,5,Yellow);
cstevens 6:18c7288b5e00 124 wait(0.1);
cstevens 6:18c7288b5e00 125
pegcjs 1:e0479f60cd48 126 }
cstevens 6:18c7288b5e00 127
dreschpe 0:7c3b9bfd6ead 128 }