Jeff Lewis / Mbed 2 deprecated Paint_9341

Paint for the FRDM-KL25Z

Dependencies:   mbed TFT_fonts SPI_TFT_ILI9341

main.cpp@5:80791250acb2, 2019-01-10 (annotated)

Committer:
ecowboy
Date:
Thu Jan 10 04:31:29 2019 +0000
Revision:
5:80791250acb2
Parent:
4:87b40e5986e7
Child:
6:13d0de9e679c
Final

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ecowboy 0:42ec9a44bc24 1 #include "mbed.h"
ecowboy 3:1396bac4ae71 2 #include "SPI_TFT_ILI9341.h"
ecowboy 3:1396bac4ae71 3 #include "Arial12x12.h"
ecowboy 0:42ec9a44bc24 4 #include "BMP565.h"
ecowboy 0:42ec9a44bc24 5 #include "stdio.h"
ecowboy 0:42ec9a44bc24 6 #include "touch.h"
ecowboy 0:42ec9a44bc24 7
ecowboy 0:42ec9a44bc24 8
ecowboy 3:1396bac4ae71 9 #define PIN_XP PTB3
ecowboy 5:80791250acb2 10 #define PIN_XM PTB1
ecowboy 5:80791250acb2 11 #define PIN_YP PTB2
ecowboy 3:1396bac4ae71 12 #define PIN_YM PTB0
ecowboy 3:1396bac4ae71 13 #define PIN_MOSI PTD2
ecowboy 3:1396bac4ae71 14 #define PIN_MISO PTD3
ecowboy 3:1396bac4ae71 15 #define PIN_SCLK PTD1
ecowboy 3:1396bac4ae71 16 #define PIN_CS_TFT PTA5
ecowboy 3:1396bac4ae71 17 #define PIN_DC_TFT PTC8
ecowboy 3:1396bac4ae71 18 #define PIN_BL_TFT PTC9
ecowboy 3:1396bac4ae71 19 #define PIN_CS_SD PTA4
ecowboy 0:42ec9a44bc24 20
ecowboy 0:42ec9a44bc24 21
ecowboy 3:1396bac4ae71 22 SPI_TFT_ILI9341 TFT(PIN_MOSI, PIN_MISO, PIN_SCLK, PIN_CS_TFT, PIN_BL_TFT, PIN_DC_TFT, "TFT");
ecowboy 3:1396bac4ae71 23 TouchScreen tft(PIN_XP, PIN_YP, PIN_XM, PIN_YM); //init TouchScreen port pins
ecowboy 0:42ec9a44bc24 24
ecowboy 0:42ec9a44bc24 25
ecowboy 0:42ec9a44bc24 26 // Paint application - Demonstate both TFT and Touch Screen
ecowboy 3:1396bac4ae71 27 int ColorPaletteHigh = 15;
ecowboy 0:42ec9a44bc24 28 int color = White; //Paint brush color
ecowboy 3:1396bac4ae71 29 unsigned int colors[16] = {Red, Green, Blue, Cyan, Yellow, Purple, Pink, Black, Orange, Brown, BlueGreen, White, LightPink, DarkGrey, DarkGreen, Mustard};
ecowboy 0:42ec9a44bc24 30
ecowboy 3:1396bac4ae71 31 int RXPLATE = 350;
ecowboy 3:1396bac4ae71 32 int Q = 1024; //10 bit TSC Resolution
ecowboy 0:42ec9a44bc24 33
ecowboy 1:33506fcfdd95 34 struct point
ecowboy 1:33506fcfdd95 35 {
ecowboy 1:33506fcfdd95 36 int x;
ecowboy 1:33506fcfdd95 37 int y;
ecowboy 1:33506fcfdd95 38 int z;
ecowboy 1:33506fcfdd95 39 };
ecowboy 1:33506fcfdd95 40
ecowboy 1:33506fcfdd95 41 typedef struct point Point;
ecowboy 1:33506fcfdd95 42
ecowboy 1:33506fcfdd95 43
ecowboy 1:33506fcfdd95 44 Point point(int xx, int yy, int zz){
ecowboy 1:33506fcfdd95 45 Point p;
ecowboy 1:33506fcfdd95 46 p.x = xx;
ecowboy 1:33506fcfdd95 47 p.y = yy;
ecowboy 1:33506fcfdd95 48 p.z = zz;
ecowboy 1:33506fcfdd95 49 return p;
ecowboy 3:1396bac4ae71 50 }
ecowboy 3:1396bac4ae71 51
ecowboy 3:1396bac4ae71 52
ecowboy 1:33506fcfdd95 53 Point getPoint(){
ecowboy 3:1396bac4ae71 54
ecowboy 3:1396bac4ae71 55 float z;
ecowboy 5:80791250acb2 56 int y2 = tft.readTouch(PTB3,PTB1,PTB2,PTB0); //a(analog),i(analog),n(digital),m(digital)
ecowboy 5:80791250acb2 57 int x2 = tft.readTouch(PTB2,PTB0,PTB3,PTB1);
ecowboy 5:80791250acb2 58 int z2 = tft.readTouch(PTB0,PTB3,PTB2,PTB1);
ecowboy 5:80791250acb2 59 int z1 = tft.readTouch(PTB3,PTB0,PTB2,PTB1);
ecowboy 3:1396bac4ae71 60
ecowboy 1:33506fcfdd95 61 if (z1!=0){
ecowboy 3:1396bac4ae71 62 z = (float)z2/(float)z1;
ecowboy 1:33506fcfdd95 63 }else{
ecowboy 1:33506fcfdd95 64 z = 0;
ecowboy 1:33506fcfdd95 65 }
ecowboy 1:33506fcfdd95 66 int x = x2;
ecowboy 1:33506fcfdd95 67 int y = y2;
ecowboy 1:33506fcfdd95 68 return point(x,y,z);
ecowboy 1:33506fcfdd95 69 }
ecowboy 3:1396bac4ae71 70
ecowboy 5:80791250acb2 71
ecowboy 0:42ec9a44bc24 72 int main(){
ecowboy 0:42ec9a44bc24 73 TFT.claim(stdout); // send stdout to the TFT display
ecowboy 0:42ec9a44bc24 74 TFT.set_orientation(0);
ecowboy 0:42ec9a44bc24 75 //TFT.Bitmap(28,90,265,65,p1);
ecowboy 0:42ec9a44bc24 76 //wait(1);
ecowboy 0:42ec9a44bc24 77 //TFT.cls();
ecowboy 0:42ec9a44bc24 78 TFT.set_font((unsigned char*) Arial12x12);
ecowboy 0:42ec9a44bc24 79 TFT.foreground(Cyan); // set chars to Cyan
ecowboy 3:1396bac4ae71 80 TFT.background(Purple); // set background to Purple
ecowboy 0:42ec9a44bc24 81 TFT.locate(80,90);
ecowboy 0:42ec9a44bc24 82 //printf("Initializing z...\r\n");
ecowboy 3:1396bac4ae71 83 for(int i = 0; i<16; i++){
ecowboy 3:1396bac4ae71 84 TFT.fillrect(i*15, 0, 15*(i+1), ColorPaletteHigh, colors[i]);
ecowboy 0:42ec9a44bc24 85 }
ecowboy 3:1396bac4ae71 86 float TS_MINX = 5500;
ecowboy 3:1396bac4ae71 87 float TS_MAXX = 58100;
ecowboy 3:1396bac4ae71 88 float TS_MINY = 4700;
ecowboy 3:1396bac4ae71 89 float TS_MAXY = 57600;
ecowboy 3:1396bac4ae71 90 int PRESSURE = 200;
ecowboy 0:42ec9a44bc24 91 while(1){
ecowboy 0:42ec9a44bc24 92 // a point object holds x y and z coordinates.
ecowboy 3:1396bac4ae71 93 //TFT.BusEnable(false);
ecowboy 2:fe018965e46c 94 Point p = getPoint();
ecowboy 3:1396bac4ae71 95 //TFT.BusEnable(true);
ecowboy 0:42ec9a44bc24 96 //map the ADC value read to into pixel co-ordinates
ecowboy 2:fe018965e46c 97 p.x = map(p.x, TS_MINX, TS_MAXX, 0, 240);
ecowboy 2:fe018965e46c 98 p.y = map(p.y, TS_MINY, TS_MAXY, 0, 320);
ecowboy 3:1396bac4ae71 99 p.z = p.x * RXPLATE / Q * (p.z -1);
ecowboy 0:42ec9a44bc24 100 // we have some minimum pressure we consider 'valid'
ecowboy 0:42ec9a44bc24 101 // pressure of 0 means no pressing!
ecowboy 3:1396bac4ae71 102 /*TFT.locate(60,90);
ecowboy 2:fe018965e46c 103 printf("x = %d \r\n", p.x);
ecowboy 2:fe018965e46c 104 TFT.locate(60,110);
ecowboy 2:fe018965e46c 105 printf("y = %d \r\n", p.y);
ecowboy 2:fe018965e46c 106 TFT.locate(60,130);
ecowboy 2:fe018965e46c 107 printf("z = %d \r\n", p.z);
ecowboy 3:1396bac4ae71 108 //TFT.locate(60,170);*/
ecowboy 3:1396bac4ae71 109 //printf("Initializing z...%d \r\n",zx);
ecowboy 3:1396bac4ae71 110 if (p.z > 40 && p.z < PRESSURE) {
ecowboy 0:42ec9a44bc24 111 // Detect paint brush color change
ecowboy 3:1396bac4ae71 112 if(int(p.y) < ColorPaletteHigh+2){
ecowboy 3:1396bac4ae71 113 color = colors[int(p.x)/15];
ecowboy 0:42ec9a44bc24 114 }else{
ecowboy 3:1396bac4ae71 115 TFT.fillcircle(int(p.x),int(p.y),2,color);
ecowboy 0:42ec9a44bc24 116 }
ecowboy 2:fe018965e46c 117 }
ecowboy 0:42ec9a44bc24 118 }
ecowboy 0:42ec9a44bc24 119 }