Diff: SX032QVGA008.h

Revision:

0:7db6d9893ccb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SX032QVGA008.h	Tue Apr 14 05:49:32 2015 +0000
@@ -0,0 +1,95 @@
+/* mbed library for aitendo SX032QVGA08 TFT module with resistive touch panel.
+ * 
+ * Original library is "SpeedStudioTFT" by 2014 Copyright (c) Seeed Technology Inc.
+ * I made by it to the reference.
+ *
+ * (1) Because there was some mistake in the source, I was corrected.
+ * (2) Also, I changed to the source you have to assume FRDM
+ * (3) I changed BackLight is PWM controlled.
+ */
+
+#ifndef SX032QVGA008_H
+#define SX032QVGA008_H
+
+#include "mbed.h"
+#include "SPI_TFT_ILI9341ext.h"
+#ifdef USE_SDCARD
+#include "SDFileSystem.h" // import the SDFileSystem library 
+#endif
+
+struct point {
+    int x;
+    int y;
+};
+
+class SX032QVGA008 : public  
+#ifdef USE_SDCARD
+    SDFileSystem,
+#endif
+    SPI_TFT_ILI9341ext
+{
+public:
+    /** create a TFT with touch object connected to the pins:
+     *
+     * @param pin xp resistiv touch x+
+     * @param pin xm resistiv touch x-
+     * @param pin yp resistiv touch y+
+     * @param pin ym resistiv touch y-
+     * @param mosi,miso,sclk SPI connection to TFT
+     * @param cs pin connected to CS of display
+     * @param rs pin connected to RS(DC) of display
+     * @param reset pin connected to RESET of display
+     * @param backlight pin connected to bkl of display 
+     *  ( You must drive N-MOSFET.pin is connected to NMOS gate terminal.)
+     * @param sdcard_cs pin connected to CS of sdcard
+     * based on my SPI_TFT lib
+     */
+    SX032QVGA008(PinName xp, PinName xm, PinName yp, PinName ym,
+                     PinName mosi, PinName miso, PinName sclk,
+                     PinName csTft, PinName dcTft, PinName resTft, PinName blTft,
+                     PinName csSd);
+
+    /** Backlight PWM controll
+     *
+     * @param duty is PWM duty (0 - 1.0)
+     * period is 0.01 fixed.
+     */
+    void setBacklight(float duty);
+    
+    /** calibrate the touch display
+     *
+     * User is asked to touch on two points on the screen
+     */
+    void calibrate(void);
+
+    /** read x and y coord on screen
+     *
+     * @returns point(x,y)
+     */
+    bool
+    getPixel(point& p);
+
+    /** calculate coord on screen
+    *
+    * @param a_point point(analog x, analog y)
+    * @returns point(pixel x, pixel y)
+    *
+    */
+    point toPixel(point p);
+
+protected:
+    PinName _xm;
+    PinName _ym;
+    PinName _xp;
+    PinName _yp;
+    PwmOut bl;
+
+    typedef enum { YES, MAYBE, NO } TOUCH;
+    TOUCH getTouch(point& p);
+    int readTouch(PinName p, PinName m, PinName a, PinName i);
+
+    int x_off,y_off;
+    int pp_tx,pp_ty;
+};
+
+#endif