Diff: touch.cpp

Revision:

0:42ec9a44bc24

Child:

1:33506fcfdd95

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/touch.cpp	Mon Jan 07 06:40:27 2019 +0000
@@ -0,0 +1,55 @@
+#include "touch.h"
+#include "mbed.h"
+
+TouchScreen::TouchScreen(PinName xp, PinName yp, PinName xm, PinName ym) {
+    PinName _yp = yp;
+    PinName _xm = xm;
+    PinName _ym = ym;
+    PinName _xp = xp;
+}
+
+/*Point TouchScreen::getPoint(Point p){
+    int z = 0;
+    int y2 = readTouch(_xp,_xm,_yp,_ym);
+    int x2 = readTouch(_yp,_ym,_xm,_xp);
+    int y1 = readTouch(_xp,_xm,_ym,_yp);
+    int x1 = readTouch(_yp,_ym,_xp,_xm);
+    int z2 = readTouch(_ym,_xp,_yp,_xm);
+    int z1 = readTouch(_ym,_xp,_xm,_yp);
+
+    if (z1!=0){
+        z = RXPLATE*x2/Q*(z2/z1-1);
+    }else{
+        z = 0;
+    }
+    p.x = x2;
+    p.y = y2;
+    p.z = z;
+    return p;
+}*/
+
+
+
+int TouchScreen::readTouch(PinName n, PinName m, PinName a, PinName i){
+    
+    DigitalOut _n(n);
+    _n = 1;
+    DigitalOut _m(m);
+    _m = 0;
+    AnalogIn   _a(a);
+    AnalogIn   _i(i);
+    wait_us(10);
+    return _a.read_u16();
+}
+
+
+
+/*bool TouchScreen::isTouching(void){
+    Point p = getPoint(p);
+    if(p.z > PRESSURE)return 1;
+    else return 0;
+}*/
+
+int map(int value, int fromSource, int toSource, int fromTarget, int toTarget){
+        return (value - fromSource) / (toSource - fromSource) * (toTarget - fromTarget) + fromTarget;
+}
\ No newline at end of file