Revision 6:18c7288b5e00, committed 2016-06-14

Comitter:

cstevens

Date:

Tue Jun 14 11:01:24 2016 +0000

Parent:

5:424af4fa03ab

Commit message:

touch nearly working;

Changed in this revision

diff -r 424af4fa03ab -r 18c7288b5e00 main.cpp
--- a/main.cpp	Thu Jun 09 16:19:10 2016 +0000
+++ b/main.cpp	Tue Jun 14 11:01:24 2016 +0000
@@ -9,31 +9,72 @@
 #include "Arial28x28.h"
 #include "font_big.h"
 
- 
+
+Serial pc (USBTX,USBRX);
 
 
 
 
-
-// the display has a backlight switch on board 
-DigitalOut LCD_LED(PTA13);   // may not be needed on mikroelectronika board    
+// the display has a backlight switch on board
+DigitalOut LCD_LED(PTA13);   // may not be needed on mikroelectronika board
 DigitalOut pwr(PTD7); // ditto
 
 // the TFT is connected to SPI pin 5-7
 //SPI_TFT_ILI9341 TFT(p5, p6, p7, p8, p9, p10,"TFT"); // mosi, miso, sclk, cs, reset, dc for lpc1768
 SPI_TFT_ILI9341 TFT(PTD2, PTD3, PTD1, PTD5, PTD0, PTA13,"TFT"); // mosi, miso, sclk, cs, reset, dc for frdmkl25z
-//NB better combination to use a coherent 2x4 block for lcd 
+//NB better combination to use a coherent 2x4 block for lcd
 //   SPI_TFT_ILI9341 TFT(PTD2, PTD3, PTD1, PTA16, PTA17, PTC16,"TFT"); // mosi, miso, sclk, cs, reset, dc for frdmkl25z
-//   DigitalOut LCD_LED(PTC17);  
+//   DigitalOut LCD_LED(PTC17);
+
+
+// Subroutine to read the x location of the touch point
+// need to set x+ to 3V and ground x- then read analogue voltage on ym
+//nb need to add a check for actual touch as opposed to random crap
+int readX()
+{
+    AnalogIn yp(PTB2);
+    AnalogIn ym(PTB3);
+    DigitalOut xp(PTB0);
+    DigitalOut xm(PTB1);
+
+    xp=1; // set positive sdie of x high
+    xm=0;
+    // dont need to do anyhting to set low side as it should be fine.
+    // but do need to disconnect yp
+    //yp.PinMode(PullNone)
+    int xval=(int)ym.read_u16();  // get value
+    return(xval);
+}
+// subroutine to read y values - has different pin functions ..
+int readY()
+{
+    DigitalOut yp(PTB2);
+    DigitalOut ym(PTB3);
+    AnalogIn xp(PTB0);
+    AnalogIn xm(PTB1);
+
+    yp=1; // set positive sdie of x high
+    ym=0;
+    // dont need to do anyhting to set low side as it should be fine.
+    // but do need to disconnect yp
+    //yp.PinMode(PullNone)
+    int yval=(int)xm.read_u16();  // get value
+    return(yval);
+}
+
+
 
 int main()
 {
+    pc.baud(115200);
+
+    int xpos=0,ypos=0,xp=0,yp=0;
     pwr=1;
     wait(0.2);
-    while(1){
+
     int i;
     LCD_LED = 1;            // backlight on
-   
+
     TFT.claim(stdout);        // send stdout to the TFT display
     TFT.set_orientation(1);
     TFT.background(Black);    // set background to black
@@ -47,52 +88,41 @@
 
     TFT.set_font((unsigned char*) Arial12x12);
     TFT.locate(0,0);
-    printf("  Hello Mbed 0");
+    printf(" 0 Hello Mbed 0");
     TFT.set_orientation(1);
     TFT.locate(0,0);
-    printf("  Hello Mbed 1");
+    printf(" 1 Hello Mbed 1");
     TFT.set_orientation(2);
     TFT.locate(0,0);
-    printf("  Hello Mbed 2");
+    printf(" 2 Hello Mbed 2");
     TFT.set_orientation(3);
     TFT.locate(0,0);
-    printf("  Hello Mbed 3");
+    printf(" 3 Hello Mbed 3");
     TFT.set_orientation(3);
     TFT.set_font((unsigned char*) Arial24x23);
     TFT.locate(50,100);
-    TFT.printf("TFT orientation");
+    TFT.printf("TFT orientation 3");
+    TFT.set_orientation(1);
+    for(i=0; i<10; i++) {
+        wait(1);        // wait one seconds
+        TFT.locate(50,160);
+        TFT.printf("count %d",i);
+    }
+    TFT.set_orientation(1);
+    TFT.cls();
+    //   LCD_LED = 1;
+    TFT.circle(120,120,10,0xffff);
+    while(1==1) {
 
-    wait(1);        // wait two seconds
-      TFT.cls();
-           LCD_LED = 1;   
-   TFT.set_font((unsigned char*) Arial12x12);
-    TFT.locate(1,10);
-    TFT.foreground(Green);
-    TFT.printf("Depth          Max Depth   Dive Time");
-    TFT.locate(1,24);
-    TFT.foreground(White);
-    TFT.set_font((unsigned char*) Arial28x28);
-    TFT.printf("32.4m");
-    
-    TFT.locate(130,24);
-    TFT.foreground(White);
-    TFT.set_font((unsigned char*) Arial24x23);
-    TFT.printf("45.6m");
-    TFT.locate(240,24);
-    TFT.printf("37'");
-    
-    TFT.locate(1,70);
-    TFT.set_font((unsigned char*) Arial12x12);
-    TFT.foreground(Green);
-    TFT.printf("ppO2:\nSensor 1     Sensor 2     Sensor 3");
-    
-     TFT.locate(1,100);
-    TFT.foreground(White);
-    TFT.set_font((unsigned char*) Arial28x28);
-    TFT.printf("1.21   1.21   1.21");
-    wait(10);
-    
-   
+        xpos=readX();
+        ypos=readY();
+        pc.printf("xpos=%d\t,\typo=%d",xpos,ypos);
+        xp=(240*xpos)/60000;
+        yp=(320*ypos)/60000;
+        pc.printf("\txp=%d\t,\typo=%d\n\r",xp,yp);
+        if(xp>5 && yp>5) TFT.circle(xp,yp,5,Yellow);
+        wait(0.1);
+
     }
-   
+
 }