Karl Zweimüller / UniGraphic

UniGraphic-Fork for ST7920-LCD-controller and SH1106. Tested with 128x64 LCD with SPI and 128x64-OLED with IIC

Dependents:   UniGraphic-St7920-Test AfficheurUTILECO

Fork of UniGraphic by GraphicsDisplay

Fork of the UniGraphic-Library for monochrome LCDs with ST7920 controller and 128x64-IIC-OLED-Display with SH1106-Controller

/media/uploads/charly/20170522_210344.jpg

/media/uploads/charly/20180425_230623.jpg

Had to adapt LCD for following reasons:

  • Give access to screenbuffer buffer[] to parent class
  • pixel() and pixel_read() as they are hardware-dependent
  • added reset-pin to IIC-Interface

GraphicDisplay:: sends buffer to LCD when auto_update is set to true.

Testprogram for ST7920 can be found here:

https://developer.mbed.org/users/charly/code/UniGraphic-St7920-Test/

Diff: Display/TFT.h

Revision:
11:b842b8e332cb
Parent:
10:668cf78ff93a
Child:
20:14daa48ffd4c
--- a/Display/TFT.h	Thu Feb 19 00:33:27 2015 +0000
+++ b/Display/TFT.h	Fri Feb 20 21:32:25 2015 +0000
@@ -208,6 +208,7 @@
     
     /** Read 16bit pixeldata from display controller (with dummy cycle)
     *
+    * @note autoconverts 18to16bit based on display identify info
     * @returns 16bit color
     */ 
     virtual unsigned short rd_gram();
@@ -231,13 +232,18 @@
     */
     void hw_reset();
     
+    /** Try to get read gram pixel format, could be 16bit or 18bit, RGB or BGR
+    * autoset internal flags so pixelread() will always return correct value.
+    */
+    virtual void auto_gram_read_format();
+    
     /** Try to identify display ID
     * @note support ILI9341,94xx, MIPI standard. May be be overridden in Init class for other specific IC
     */
     virtual void identify();
     
     unsigned int scrollbugfix;
-    bool mipistd;
+    
     
     
 private:
@@ -259,6 +265,9 @@
     bool useNOP;
     bool usefastwindow;
     bool fastwindowready;
+    bool mipistd;
+    bool is18bit;
+    bool isBGR;
     
 };