Sample TFT to KL25Z program.

Dependencies:   SPI_STMPE610 TFT_fonts UniGraphic mbed

Fork of TFT_test_frdm-kl25z by Motoo Tanaka

Files at this revision

API Documentation at this revision

Comitter:
Sustainable
Date:
Tue Feb 13 20:21:30 2018 +0000
Parent:
4:8c3681dc676f
Commit message:
Basic TFT to KL25Z board. Shows how to use colors and circles to create buttons. Also displays the x,y data after each touch.

Changed in this revision

MMA8451Q.lib Show diff for this revision Revisions of this file
SPI_STMPE610.lib Show annotated file Show diff for this revision Revisions of this file
TFT_fonts.lib Show annotated file Show diff for this revision Revisions of this file
TSI.lib Show diff for this revision Revisions of this file
UniGraphic.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
maze.cpp Show diff for this revision Revisions of this file
maze.h Show diff for this revision Revisions of this file
diff -r 8c3681dc676f -r 449dc35a29bd MMA8451Q.lib
--- a/MMA8451Q.lib	Sat Aug 08 12:27:57 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-http://mbed.org/users/emilmont/code/MMA8451Q/#c4d879a39775
diff -r 8c3681dc676f -r 449dc35a29bd SPI_STMPE610.lib
--- a/SPI_STMPE610.lib	Sat Aug 08 12:27:57 2015 +0000
+++ b/SPI_STMPE610.lib	Tue Feb 13 20:21:30 2018 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/Rhyme/code/SPI_STMPE610/#a012c1710119
+http://mbed.org/users/Rhyme/code/SPI_STMPE610/#09fece599665
diff -r 8c3681dc676f -r 449dc35a29bd TFT_fonts.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_fonts.lib	Tue Feb 13 20:21:30 2018 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/Sustainable/code/TFT_fonts/#ff8951994cec
diff -r 8c3681dc676f -r 449dc35a29bd TSI.lib
--- a/TSI.lib	Sat Aug 08 12:27:57 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-http://mbed.org/users/emilmont/code/TSI/#507b1f67804b
diff -r 8c3681dc676f -r 449dc35a29bd UniGraphic.lib
--- a/UniGraphic.lib	Sat Aug 08 12:27:57 2015 +0000
+++ b/UniGraphic.lib	Tue Feb 13 20:21:30 2018 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/teams/GraphicsDisplay/code/UniGraphic/#1bdfb971b2c1
+http://mbed.org/teams/GraphicsDisplay/code/UniGraphic/#9cd6227dc7a6
diff -r 8c3681dc676f -r 449dc35a29bd main.cpp
--- a/main.cpp	Sat Aug 08 12:27:57 2015 +0000
+++ b/main.cpp	Tue Feb 13 20:21:30 2018 +0000
@@ -1,401 +1,194 @@
-/* mbed main.cpp to test adafruit 2.8" TFT LCD shiled w Touchscreen
- * Copyright (c) 2014 Motoo Tanaka @ Design Methodology Lab
+/*******************************************************************
+ * TFT Sample program for STEM project
+ * By Henry Foley, Feb 2017
  *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
+ * Hardware: Freedom KL25Z uC development board with a TFT 2.8"
+ * resistive touch display shield from Adafruit (1651).
+ *
  */
- 
- /* 
-  * Note: This program is derived from the SeeeStudioTFTv2 program.
-  * Although both program share same ILI9341 TFT driver,
-  * the touch sensor was not same with the Display I purchased from Akizuki.
-  * http://akizukidenshi.com/catalog/g/gM-07747/
-  * The touch sensor on the display is STMPE610,
-  * so I hacked the minimum spi driver for it (polling mode only).
-  */
 
 #include "mbed.h"
-#include "MMA8451Q.h"
-#include "TSISensor.h"
-#include <math.h>
 #include "ILI9341.h"
 #include "SPI_STMPE610.h"
 #include "Arial12x12.h"
 #include "Arial24x23.h"
 #include "Arial28x28.h"
-#include "Arial43x48_numb.h"
-
+#include "Verdana22x21-16.h"
 
 #define PIN_XP          PTB3
 #define PIN_XM          PTB1
 #define PIN_YP          PTB2
 #define PIN_YM          PTB0
 #define PIN_MOSI        PTD2
-#define PIN_MISO        PTD3 
-#define PIN_SCLK        PTD1 
-#define PIN_CS_TFT      PTD0 
-#define PIN_DC_TFT      PTD5 
-#define PIN_BL_TFT      PTC9 
-#define PIN_CS_SD       PTA4 
+#define PIN_MISO        PTD3
+#define PIN_SCLK        PTD1
+#define PIN_CS_TFT      PTD0
+#define PIN_DC_TFT      PTD5
+#define PIN_BL_TFT      PTC9
+#define PIN_CS_SD       PTA4
 #define PIN_CS_TSC      PTA13
-#define PIN_TSC_INTR    PTC9
-#define PIN_RESET_TFT   PTB10
+#define PIN_RESET_TFT   PTB10  
 
-#define MMA8451_I2C_ADDRESS (0x1d<<1)
-MMA8451Q *acc = 0 ;
-TSISensor tsi;
+
 
 DigitalOut backlight(PTA12) ;
-ILI9341 TFT(SPI_8, 10000000, 
-    PIN_MOSI, PIN_MISO,  PIN_SCLK, 
-    PIN_CS_TFT, PIN_RESET_TFT, PIN_DC_TFT, "Adafruit2.8") ;
+
 SPI_STMPE610 TSC(PIN_MOSI, PIN_MISO, PIN_SCLK, PIN_CS_TSC) ;
 
-DigitalIn pinD7(PTC9) ;
+ILI9341 TFT(SPI_8, 10000000,
+            PIN_MOSI, PIN_MISO,  PIN_SCLK,
+            PIN_CS_TFT, PIN_RESET_TFT, PIN_DC_TFT, "Adafruit2.8") ;
+            
+void initTFT(void);
+void drawScreen(void);
+uint16_t map(uint16_t, uint16_t, uint16_t, uint16_t, uint16_t);
+void display_xy(void);
+
+int main()
+{
+    static uint16_t x, y, z ;
+    uint16_t temp_x;
+    int touched = 0;
+
+    initTFT() ;
 
-int page = 0 ;
-int numPage = 5 ;
-
-extern void doMaze(void) ;
+    drawScreen();
+     
+    while(true)
+    {
+        touched = TSC.getRAWPoint(&x, &y, &z);
+        
+        if(touched)  // any touch
+        {
+                
+            // scale the raw values to match the screen orentation and 320(x = horiz) 240(y = vert) size, 0,0 = upper left corner
+            temp_x = x;
+            x = map(y,180, 3800,0,320);
+            y = map(temp_x,3800,280,0,240);
+            if( (x > 0 && x < 320) && ( y > 0 && y < 240 ))  // if valid values
+            {
+                drawScreen();
+                
+                TFT.BusEnable(true) ;
+                TFT.background(Blue);
+                wait(0.2);
+                TFT.foreground(White);
+                TFT.locate(120, 160);
+                TFT.printf("x%3d", x);
+                TFT.locate(120, 190);
+                TFT.printf("y%3d", y);                
+                TFT.BusEnable(false) ;
+                wait(0.5); // to reduce mutiple hits from one touch
+            }
+        
+        } 
+    }
+} // end of main()
 
 void initTFT(void)
 {
     //Configure the display driver
     TFT.BusEnable(true) ;
-    TFT.FastWindow(true) ;
-    TFT.background(Black);
+    TFT.set_orientation(1);
+    backlight = 1 ;
+    TFT.background(Blue);
+    wait(0.2);
     TFT.foreground(White);
-    wait(0.01) ;
+    wait(0.2);
     TFT.cls();
+    wait(0.2);
+    TFT.set_font((unsigned char*) Arial28x28);
+    wait(0.2);
+    TFT.locate(15, 10);
+    TFT.printf("  TFT Test  ");
+    TFT.locate(15, 100);
+    TFT.BusEnable(false);
+    wait(5);
+}
+
+
+void drawScreen(void)
+{
+    TFT.BusEnable(true);
+    TFT.foreground(White);  // Set default text colors
+    TFT.background(Blue);
+    TFT.cls();              // wipe the screen clean and set bg colors
+    wait(0.1);
+
+    TFT.foreground(Black);
+    TFT.set_font((unsigned char*) Arial24x23);
+    TFT.fillcircle(  60, 175, 50, Yellow);
+    TFT.background(Yellow) ;
+    TFT.locate(25, 160);
+    TFT.printf(" A ");
+
+    TFT.fillcircle( 160, 105, 50, Cyan);
+    TFT.background(Cyan) ;
+    TFT.locate(127, 92);
+    TFT.printf(" B ");
+
+    TFT.fillcircle( 260, 175, 50, Green);
+    TFT.background(Green) ;
+    TFT.locate(222, 160);
+    TFT.printf("  C  ");
+    
+    TFT.fillcircle( 60, 60, 50, Orange);
+    TFT.background(Orange) ;
+    TFT.locate(15, 50);
+    TFT.printf("  D  ");
+    
+    TFT.fillcircle( 260, 60, 50, GreenYellow);
+    TFT.background(GreenYellow) ;
+    TFT.locate(225, 50);
+    TFT.printf("  E  ");   
+
     TFT.BusEnable(false) ;
 }
 
-void screen1(void) // Welcome Screen
-{
-    TFT.BusEnable(true) ;
-    backlight = 0 ;
-    TFT.background(White) ;
-    wait(0.1) ;
-    TFT.cls() ;
-    wait(0.1) ;
-    
-    TFT.set_font((unsigned char*) Arial24x23);
-    TFT.foreground(Red) ;
-    TFT.locate(80, 40) ;
-    TFT.printf("MBED") ;
-    TFT.foreground(Blue);
-    TFT.locate(60, 80) ;
-    TFT.printf("2.8\"TFT") ; 
-    TFT.locate(40, 120) ;
-    TFT.printf("with touch") ;
-    TFT.foreground(Black);
-    TFT.set_font((unsigned char*) Arial12x12);
-    TFT.foreground(Blue) ;
-    TFT.locate(30, 180) ;
-    TFT.printf("This program is running on") ;
-    TFT.locate(30, 200) ;
-    TFT.printf("freescale FRDM-KL25Z with") ;
-    TFT.locate(30, 220) ;
-    TFT.printf("a program developed in mbed") ;
-    TFT.foreground(Green) ;
-    TFT.locate(30, 260) ;
-    TFT.printf("To advance demo page, touch") ;
-    TFT.locate(30, 280) ;
-    TFT.printf("and hold right side of screen") ;
-    TFT.locate(30, 300) ;
-    TFT.printf("until the next screen starts") ;
-    TFT.BusEnable(false) ;
-    backlight = 1 ;
-}
-
-void screen2(void) // Graphics
+// mapping function to change the orentation of the screen to horizontal
+uint16_t map(uint16_t x, uint16_t in_min, uint16_t in_max, uint16_t out_min, uint16_t out_max)
 {
-    //Draw some graphics
-    int i, x[2], y[2] ;
-    backlight = 0 ;
-    TFT.BusEnable(true) ;
-    TFT.background(Black);
-    wait(0.1) ;
-    TFT.foreground(White);
-    wait(0.1) ;
-    TFT.cls() ;
-    wait(0.1) ;
-    TFT.set_font((unsigned char*) Arial12x12);
-    TFT.locate(90,0);
-    TFT.printf("Graphics");
-    
-    x[0] = 25 ; x[1] = 224 ;
-    y[0] = 20 ; y[1] = 219 ;
-    for (i = 20 ; i < 220 ; i += 10) {
-        TFT.line(i+5, y[0], i+5, y[1], Blue) ;
-        TFT.line(x[0], i, x[1], i, Blue) ;
-    }
-    TFT.line(125, y[0], 125, y[1], Green) ;
-    TFT.line(x[0], 120, x[1], 120, Green) ;
-    TFT.rect(x[0],y[0], x[1], y[1], Green) ;
-    TFT.locate(10, 20) ;
-    TFT.printf("V") ;
-    TFT.locate(0, 115) ;
-    TFT.printf("0.0") ;
-    TFT.locate(115, 225) ;
-    TFT.printf("0.0") ;
-    TFT.locate(215, 225) ;
-    TFT.printf("T") ;
-
-    double s;
-    for (int i = x[0]; i < 225; i++) {
-        s = 40 * sin((long double)i / 20);
-        TFT.pixel(i, 120 + (int)s, White);
-    }
-    
-    TFT.fillrect(10, 240, 229, 309, White) ;
-    TFT.rect(10, 240, 229, 309, Red) ;
-    TFT.rect(11, 241, 228, 308, Red) ;
-    
-    TFT.background(White) ;
-    TFT.foreground(Black) ;
-    TFT.locate(20, 250) ;
-    TFT.printf("With QVGA resolution") ;
-    TFT.locate(20, 270) ;
-    TFT.printf("simple graphics drawing") ;
-    TFT.locate(20, 290) ;
-    TFT.printf("capability is provided") ;
-    TFT.BusEnable(false) ;
-    backlight = 1 ;
-}    
-
-double clip(double src)
-{
-    double value ;
-    value = src ;
-    if (value < 0.0) {
-        value = 0.0 ;
-    } else if (value > 2.0) {
-        value = 2.0 ;
-    }
-    return( value ) ;
+    return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
 }
 
-void screen3(void)
+// Code used to debug screen orentation and touch pad
+void display_xy(void)
 {
-    int t = 0 ;
-    int pt = 0 ; // previous t 
-    int i, x, y ;
-    unsigned int data[3] ; // for x, y, z 
-    unsigned int prev[3] ;
-    unsigned short signalHeight = 39 ;
-    unsigned short xoffset = 30 ;
-    unsigned short yoffset = 120 ;
-    unsigned short zoffset = 210 ;
-    unsigned short paneX[2] = {20, 235} ;
-    unsigned short paneH = 81 ;
- 
-    backlight = 1 ;
-    TFT.BusEnable(true) ;
-    TFT.background(Black) ;
-    TFT.foreground(White) ;
-//    TFT.cls() ;
+    static uint16_t x, y, z ;
+    uint16_t temp_x;
+    int touched = 0;
+
+    while(true) {
+        touched = TSC.getRAWPoint(&x, &y, &z);
 
+        x = x & 0x7f;
+        y = y & 0x7f;
+        
+        if(x) { // any touch
+            wait(0.5);
+            TFT.BusEnable(true);
+            TFT.locate(5, 40);
+            TFT.printf("x= %5d x=%4X", x, x);
+            TFT.locate(5, 80);
+            TFT.printf("y= %5d y=%4X", y, y);
+ //           TFT.locate(5, 120);
+ //           TFT.printf("raw z%6d  z%4X", z, z);           
+
+            // scale the raw values to match the screen orentation and 320(x = horiz) 240(y = vert) size
+            // 0,0 = upper left corner
+            temp_x = x;
+            x = map(y,180, 3800,0,320);              // TFT.set_orientation(1);
+            y = map(temp_x,3800,280,0,240);
+
+//          x = map(y,3800, 180,0,320);              // TFT.set_orientation(3);
+//          y = map(temp_x,280,3800,0,240);
+
+            TFT.locate(5, 120);
+            TFT.printf("map x%5d y%5d", x, y);
  
-    TFT.fillrect(paneX[0], xoffset, paneX[1], xoffset+paneH, Black) ;
-    TFT.fillrect(paneX[0], yoffset, paneX[1], yoffset+paneH, Black) ;
-    TFT.fillrect(paneX[0], zoffset, paneX[1], zoffset+paneH, Black) ;
-    TFT.fillrect(paneX[0], xoffset, paneX[1], xoffset+paneH, Black) ;
-    for (i = 0 ; i < 10 ; i++ ) {
-        y = i * 8 ;
-        TFT.line(paneX[0], xoffset + y, paneX[1], xoffset + y, Blue) ;
-        TFT.line(paneX[0], yoffset + y, paneX[1], yoffset + y, Blue) ;
-        TFT.line(paneX[0], zoffset + y, paneX[1], zoffset + y, Blue) ;
-    }
-    for (x = 30 ; x < paneX[1] ; x += 10 ) {
-        TFT.line(x, xoffset, x, xoffset+paneH, Blue) ;
-        TFT.line(x, yoffset, x, yoffset+paneH, Blue) ;
-        TFT.line(x, zoffset, x, zoffset+paneH, Blue) ;
-    } 
-    TFT.rect(paneX[0], xoffset, paneX[1], xoffset+paneH, White) ;
-    TFT.rect(paneX[0], yoffset, paneX[1], yoffset+paneH, White) ;
-    TFT.rect(paneX[0], zoffset, paneX[1], zoffset+paneH, White) ;
-    TFT.set_font((unsigned char*) Arial12x12);
-    TFT.locate(5, xoffset+30) ;
-    TFT.printf("X") ;
-    TFT.locate(5, yoffset+30) ;
-    TFT.printf("Y") ;
-    TFT.locate(5, zoffset+30) ;
-    TFT.printf("Z") ;
-    TFT.locate(50, 10) ;
-    TFT.printf("Xtrinsic Accelerometer") ;
-    TFT.locate(90, 300) ;
-    TFT.printf("MMA8451Q") ;
-    
-    prev[0] = xoffset + (signalHeight * clip((1.0 + acc->getAccX()))) ;
-    prev[1] = yoffset + (signalHeight * clip((1.0 + acc->getAccY()))) ;
-    prev[2] = zoffset + (signalHeight * clip((1.0 + acc->getAccZ()))) ;
-    pt = paneX[0] ;
-    backlight = 1 ;
-    for(t = 21 ; t < paneX[1] ; t++) {
-        data[0] = xoffset + (signalHeight * clip((1.0 + acc->getAccX()))) ;
-        data[1] = yoffset + (signalHeight * clip((1.0 + acc->getAccY()))) ;
-        data[2] = zoffset + (signalHeight * clip((1.0 + acc->getAccZ()))) ;
-        TFT.line(pt, prev[0], t, data[0], Red) ;
-        TFT.line(pt, prev[1], t, data[1], Green) ;
-        TFT.line(pt, prev[2], t, data[2], Yellow) ;
-        prev[0] = data[0] ;
-        prev[1] = data[1] ;
-        prev[2] = data[2] ;
-        pt = t ;
-        wait(0.01) ;
-    }
-    TFT.BusEnable(false) ;
-}
-
-void screen4(void)
-{
-    int dx, px ;
-    float delta = 0.0 ;
-    dx = 0 ;
-    px = 0 ;
-    backlight = 0 ;
-    TFT.BusEnable(true) ;
-    TFT.background(Black);
-    wait(0.1) ;
-    TFT.foreground(White);
-    wait(0.1) ;
-    TFT.cls() ;
-    wait(0.1) ;
-
-    TFT.set_font((unsigned char*) Arial12x12);
-    TFT.foreground(Blue) ;
-    TFT.locate(60, 10) ;
-    TFT.printf("<< TSI demo >>") ;
-    TFT.locate(30, 280) ;
-    TFT.printf("Use FRDM touch slider") ;
-    TFT.locate(30, 300) ;
-    TFT.printf("Touch right edge to end") ;
-    
-    TFT.fillcircle(120, 160, 100, Green) ;
-    TFT.fillcircle(60, 160, 50, Black) ;
-    TFT.fillcircle(60, 160, 45, White) ;
-    TFT.fillcircle(180, 160, 50, Black) ;
-    TFT.fillcircle(180, 160, 45, White) ;
-    TFT.fillcircle(60, 160, 5, Black) ;
-    TFT.fillcircle(180, 160, 5, Black) ;
-    backlight = 1 ;
-
-    while(dx < 38) {
-      delta = (80.0 * (tsi.readPercentage()-0.5)) ;
-      dx = (int)(delta + 0.5) ;
-      TFT.fillcircle(60+px, 160, 5, White) ;
-      TFT.fillcircle(180+px, 160, 5, White) ;
-      TFT.fillcircle(60+dx, 160, 5, Black) ;
-      TFT.fillcircle(180+dx, 160, 5, Black) ;
-      px = dx ;
-      wait(0.1) ;
-    }
-    TFT.fillcircle(60+px, 160, 5, White) ;
-    TFT.fillcircle(180+px, 160, 5, White) ;
-    TFT.line(15, 160, 105, 160, Black) ;
-    TFT.line(135, 160, 225, 160, Black) ;
-    TFT.foreground(Yellow) ;
-    TFT.locate(30, 300) ;
-//    TFT.printf("Use FRDM touch slider") ;
-    TFT.printf("       Wake Up!          ") ;
-    TFT.locate(5, 300) ;
-    TFT.printf("<< Prev") ;
-    TFT.locate(180, 300) ;
-    TFT.printf("Next >>") ;
-    TFT.BusEnable(false) ;
-}
-
-void incPage(void)
-{
-    page++ ;
-    if (page >= numPage) {
-        page = 0 ;
+            TFT.BusEnable(false);
+            wait(0.5);
+        }
     }
 }
-
-void decPage(void) 
-{
-    page-- ;
-    if (page < 0) {
-        page = numPage - 1 ;
-    }
-}
-    
-int main()
-{
-    uint16_t x, y, z ;
-    int prevPage = 99 ;
-    bool waitTouch = false ;
-    
-    acc = new MMA8451Q(PTE25, PTE24, MMA8451_I2C_ADDRESS) ;
-    
-    initTFT() ;
-    
- //   screen0() ;
-        
-    printf("Program Started!\n\r") ;
-    
-    for(;;) {
-//        printf("TFT width = %d, height = %d\n\r", TFT.width(), TFT.height()) ;
-        switch(page) {
-        case 0:
-            if (prevPage != page) {
-                screen1() ;
-            }
-            waitTouch = true ;
-            break ;
-        case 1:
-            if (prevPage != page) {
-                screen2() ; 
-            }
-            waitTouch = true ;
-            break ;
-        case 2:
-            if (prevPage != page) {
-                TFT.BusEnable(true) ;
-                TFT.background(Black) ;
-                TFT.foreground(White) ;
-                TFT.cls() ;
-                TFT.BusEnable(false) ;
-            }
-            screen3() ; 
-            waitTouch = false ;
-            break ;
-        case 3:
-//            if (prevPage != page) {
-                screen4() ;
-                waitTouch = true ;
-//            }
-            break ;
-        case 4:
-//            if (prevPage != page) {
-                doMaze() ;
-                waitTouch = true ;
-//            }
-            break ;
-        default:
-            page = 0 ; 
-            break ;
-        }
-        prevPage = page ;
-
-        do {
-            TSC.getRAWPoint(&x, &y, &z) ;
-            if ((x != 0)||(y != 0) || (z != 0)) {
-                if (x < 1000) { // left
-                    decPage() ;
-                } else if (x > 3000) { // right
-                    incPage() ;
-                }
-                waitTouch = false ;
-            }
-        } while(waitTouch != false) ;
-//        wait(1) ;
-    }
-}
+    
\ No newline at end of file
diff -r 8c3681dc676f -r 449dc35a29bd maze.cpp
--- a/maze.cpp	Sat Aug 08 12:27:57 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,255 +0,0 @@
-/** maze_vt100 a simple maze using UniGraphic and MMA8451Q libraries
- */
-#include "mbed.h"
-#include "MMA8451Q.h"
-#include <ILI9341.h>
-#include "Arial12x12.h"
-#include "Arial24x23.h"
-#include "Arial28x28.h"
-#include "Arial43x48_numb.h"
-#include "maze.h"
-
-#define CELL_W  10
-#define CELL_H  10
-#define CELL_S   5
-#define CELL_R   4
-#define LEFT_OFFSET 20
-#define TOP_OFFSET 20
-
-#define DIR_STAY  0
-#define DIR_UP    1
-#define DIR_DOWN  2
-#define DIR_RIGHT 3 
-#define DIR_LEFT  4
-
-#define MMA8451_I2C_ADDRESS (0x1D<<1)
-
-typedef struct _pos {
-    int x ;
-    int y ;
-} pos_type ;
-
-extern MMA8451Q *acc ;
-extern ILI9341 TFT ;
-extern DigitalOut backlight ;
-float threshold = 0.2 ;
-
-/** Check if two pos_type values are same
- * @param pos_type a
- * @param pos_type b
- * @returns if a and b are same position
- */
-bool isSame(pos_type a, pos_type b)
-{
-    return((a.x == b.x)&&(a.y == b.y)) ;
-}
-
-/** Draw the maze defined in the "maze.h"
- * @param pos_type *current actually the start point
- * @param pos_type *goal the position of the goal
- * @note those params are actually returned by this function
- */
-void drawTFTMaze(pos_type *current, pos_type *goal)
-{
-    int x, y, i, j ;
-    TFT.BusEnable(true) ;
-    
-    backlight = 0 ;
-    TFT.foreground(White) ;
-    TFT.background(Black) ;
-    TFT.cls() ;
-    for (j = 0 ; j < MAZE_H ; j++ ) {
-        for (i = 0 ; i < MAZE_W ; i++ ) {
-            x = i * CELL_W + LEFT_OFFSET ;
-            y = j * CELL_H + TOP_OFFSET ;
-            switch(maze[j][i]) {
-            case 0: // path
-                TFT.fillrect(x, y, x+CELL_W-1, y+CELL_H-1, Black) ;
-                break ;
-            case 1: // wall
-                TFT.fillrect(x, y, x+CELL_W-1, y+CELL_H-1, DarkGrey) ;
-                break ;
-            case 2: // Start point
-                TFT.fillcircle(x+CELL_S, y+CELL_S, CELL_R, Green) ;
-                current->x = i ;
-                current->y = j ;
-                break ;
-            case 3: // Goal
-                TFT.fillcircle(x+CELL_S, y+CELL_S, CELL_R, Red) ;
-                goal->x = i ;
-                goal->y = j ;
-                break ;
-            default: // should not be here
-                break ;
-            }
-        }
-    }
-    backlight = 1 ;
-    TFT.BusEnable(false) ;
-}
-
-/** Filter out too little move 
- * @param float in returned value from the acc
- * @returns float result filtered value of in
- */
-float filterVal(float in)
-{
-    float result = 0.0 ;
-    if ((-threshold > in)||(in > threshold)) {
-        result = in ;
-    }
-    return( result ) ;
-}
-
-/** Decide which direction to go
- * @param float res[] acc value of x, y 
- * @returns int direction to move 
- */
-int getDirection(float res[])
-{
-    float dx, dy ;
-    int direction = DIR_STAY ;
-    dx = filterVal(res[0]) ;
-    dy = filterVal(res[1]) ;
-
-    if ((dx*dx) > (dy*dy)) { // holizontal move
-        if (dx > 0.0) {
-            direction = DIR_DOWN ;
-        } else if (dx < 0.0) {
-            direction = DIR_UP ;
-        }
-    } else { // vertical move
-        if (dy > 0.0) {
-            direction = DIR_RIGHT ;
-        } else if (dy < 0.0) {
-            direction = DIR_LEFT ;
-        }
-    }
-    return(direction) ;
-}
-
-/** Get next positon to move to
- * @param pos_type current where we are now
- * @param int direction which way we'd like to move
- * @returns the candidate positon for the next move
- */
-pos_type getNext(pos_type current, int direction) 
-{
-    pos_type next = current ;
-    switch(direction) {
-    case DIR_STAY: 
-        break ;
-    case DIR_UP: 
-        if (next.y > 0) { 
-            next.y-- ; 
-        }  
-        break ;
-    case DIR_DOWN: 
-        if (next.y < (MAZE_H - 1)) { 
-            next.y++ ; 
-        } 
-        break ;
-    case DIR_RIGHT: 
-        if (next.x < (MAZE_W - 1)) { 
-            next.x++ ; 
-        } 
-        break ;
-    case DIR_LEFT: 
-        if (next.x > 0) { 
-            next.x-- ; 
-        } 
-        break ;
-    default: 
-        break ;
-    }
-    return( next ) ;
-}
-
-/** Notice of the goal
- */
-void showGoal(void)
-{
-    int x0, y0, x1, y1 ;
-    x0 = ((MAZE_W/2)-4) * CELL_W + LEFT_OFFSET ;
-    y0 = ((MAZE_H/2)-1) * CELL_H + TOP_OFFSET ;
-    x1 = ((MAZE_W/2)+4) * CELL_W + LEFT_OFFSET ;
-    y1 = ((MAZE_H/2)+1) * CELL_H + TOP_OFFSET ;
-
-    TFT.BusEnable(true) ;
-//    TFT.set_font((unsigned char*) Arial12x12);
-    TFT.set_font((unsigned char*) Terminal6x8) ;
-    TFT.fillrect(x0, y0, x1, y1, Blue) ;
-    TFT.rect(x0,y0,x1,y1, Yellow) ;
-    TFT.foreground(Red) ;
-    TFT.background(Blue) ;
-    x0 = ((MAZE_W/2) - 2) * CELL_W + LEFT_OFFSET ;
-    y0 = (MAZE_H/2) * CELL_H - 3 + TOP_OFFSET ;
-    TFT.locate(x0, y0) ;
-    TFT.printf("G O A L") ;
-    TFT.foreground(Yellow) ;
-    TFT.background(Black) ;
-    TFT.locate(30, 300) ;
-//    TFT.printf("Use FRDM touch slider") ;
-    TFT.printf("           Retry!      ") ;
-    TFT.locate(5, 300) ;
-    TFT.printf("<< Prev") ;
-    TFT.locate(180, 300) ;
-    TFT.printf("Next >>") ;
-    TFT.BusEnable(false) ;
-}
-
-/** Check if we can move to the next position
- * @param pos_type next the position we'd like to move next
- * @returns if the position is empty (movable)
- */
-bool checkMove(pos_type next) 
-{
-    bool result = false ;
-    
-    switch(maze[next.y][next.x]) {
-    case POS_PATH:
-    case POS_GOAL:
-        result = true ;
-        break ;
-    case POS_START:
-    case POS_WALL:
-    default:
-        result = false ;
-        break ;
-    } 
-    return( result ) ;
-}
-
-/** main a simple maze program
- */
-void doMaze(void) 
-{
-    float res[3] ;
-    pos_type current, next, goal ;
-    int direction = DIR_STAY ;
-    int x, y ;
-    
-    drawTFTMaze(&current, &goal) ;
-    
-    for (;;) {
-        acc->getAccAllAxis(res) ;
-        direction = getDirection(res) ;
-        next = getNext(current, direction) ;
-        if ((!isSame(current, next)) && checkMove(next)) {
-           TFT.BusEnable(true) ;
-           x = current.x * CELL_W + LEFT_OFFSET ;
-           y = current.y * CELL_H + TOP_OFFSET ;
-           TFT.fillrect(x, y, x+CELL_W-1, y+CELL_H-1, Black) ;
-           x = next.x * CELL_W + LEFT_OFFSET ;
-           y = next.y * CELL_H + TOP_OFFSET ;
-           TFT.fillcircle(x+CELL_S, y+CELL_S, CELL_R, Green) ; 
-           TFT.BusEnable(false) ;
-           current = next ;
-           if (isSame(next, goal)) {
-             break ; // goal in!
-           }
-        }
-        wait(0.1) ;
-    }
-    showGoal() ;
-}
diff -r 8c3681dc676f -r 449dc35a29bd maze.h
--- a/maze.h	Sat Aug 08 12:27:57 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,36 +0,0 @@
-#ifndef _MAZE_H_
-#define _MAZE_H_ defined
-
-#define MAZE_W 20
-#define MAZE_H 20
-
-#define POS_PATH  0
-#define POS_WALL  1
-#define POS_START 2
-#define POS_GOAL  3
-
-uint8_t maze[MAZE_H][MAZE_W] = {
- {1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1},
- {1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
- {1,0,1,0,1,0,1,1,1,1,0,1,1,1,1,1,1,1,0,1},
- {1,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,1,1,0,1},
- {1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,0,1,1,0,1},
- {1,0,0,0,1,0,1,0,1,0,0,0,0,0,1,0,1,1,0,1},
- {1,0,1,1,1,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1},
- {1,0,1,0,0,0,1,0,1,1,0,1,0,1,0,0,1,1,0,1},
- {1,0,1,0,1,1,1,0,0,1,0,1,0,1,0,1,1,1,0,1},
- {1,0,1,0,1,1,1,1,1,1,0,1,0,1,0,0,0,1,0,1},
- {1,0,0,0,0,0,0,0,0,0,0,1,0,1,1,1,0,1,0,1},
- {1,0,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,0,1},
- {1,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1},
- {1,0,1,0,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1},
- {1,0,1,0,1,0,0,0,1,0,0,0,0,0,0,1,1,1,1,1},
- {1,0,1,0,1,1,1,0,1,0,1,1,1,1,1,1,1,1,1,1},
- {1,0,1,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,1},
- {1,0,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,0,1},
- {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1},
- {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,3,1}
-} ;      
-
-extern void doMaze(void) ;
-#endif // _MAZE_H_
\ No newline at end of file