Diff: main.cpp

Revision:

0:2b1669e97586

Child:

1:47e5fbdb28f1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Dec 28 22:02:36 2014 +0000
@@ -0,0 +1,84 @@
+
+#include "mbed.h"           // tested with v92
+#include "RA8875.h"         // tested with v80
+
+LocalFileSystem local("local");
+RA8875 lcd(p5, p6, p7, p12, NC, "tft");    // MOSI, MISO, SCK, /ChipSelect, /reset, name
+Serial pc(USBTX, USBRX);
+
+extern "C" void mbed_reset();
+
+
+#define min(a,b) ((a<b)?a:b)
+#define max(a,b) ((a>b)?a:b)
+
+bool Intersect(rect_t rect, point_t p)
+{
+    if (p.x >= min(rect.p1.x, rect.p2.x) && p.x <= max(rect.p1.x, rect.p2.x)
+    && p.y >= min(rect.p1.y, rect.p2.y) && p.y <= max(rect.p1.y, rect.p2.y))
+        return true;
+    else
+        return false;
+}
+
+int main()
+{
+    pc.baud(460800);    // I like a snappy terminal, so crank it up!
+    pc.printf("\r\nRA8875 Touch Colors - Build " __DATE__ " " __TIME__ "\r\n");
+ 
+    pc.printf("Turning on display\r\n");
+    lcd.init();
+    lcd.TouchPanelCalibrate("Calibrate the touch panel");
+    lcd.cls();
+    
+    // +----------------------------------------------------+
+    // | (x,y) (xxx,yyy)                     rgb (RR,GG,BB) |
+    // | +------------------------------------------------+ | y =  50
+    // | |                Sample Shown Here               | |
+    // | +------------------------------------------------+ | y =  89
+    // | Red 0 to 255 ------------------------------------+ | y = 100
+    // | |                                                | |
+    // | +------------------------------------------------+ | y = 139
+    // | Grn 0 to 255 ------------------------------------+ | y = 150
+    // | |                                                | |
+    // | +------------------------------------------------+ | y = 189
+    // | Blu 0 to 255 ------------------------------------+ | y = 200
+    // | |                                                | |
+    // | +------------------------------------------------+ | y = 239
+    // +----------------------------------------------------+ y = 271
+    //   10                                             470
+    rect_t RGBList[] = {
+        { 10,100, 470,139 },    // R
+        { 10,150, 470,189 },    // G
+        { 10,200, 470,239 },    // B
+        { 10, 50, 470, 89 }     // This for the Sample
+    };
+    lcd.fillrect(RGBList[0], Red);
+    lcd.fillrect(RGBList[1], Green);
+    lcd.fillrect(RGBList[2], Blue);
+    color_t rgb = Black;
+    uint8_t rgbVal[3] = { 0, 0, 0 };
+    
+    for (;;) {
+        point_t p;
+        
+        if (lcd.TouchPanelReadable(&p)) {
+            lcd.foreground(Blue);
+            lcd.SetTextCursor(10, 15);
+            lcd.printf("(%3d,%3d)", p.x, p.y);
+            
+            for (int i=0; i<3; i++) {
+                if (Intersect(RGBList[i], p)) {
+                    uint8_t mag = (255 * (p.x - RGBList[i].p1.x)) / (RGBList[i].p2.x - RGBList[i].p1.x);
+                    rgbVal[i] = mag;
+                    lcd.SetTextCursor(380, 15);
+                    lcd.foreground(Blue);
+                    lcd.printf("(%02X,%02X,%02X)", rgbVal[0], rgbVal[1], rgbVal[2]);
+                    rgb = RGB(rgbVal[0], rgbVal[1], rgbVal[2]);
+                    lcd.fillrect(RGBList[3], rgb);
+                    break;
+                }
+            }
+        }
+    }
+}