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: Protocols/Protocols.h

Revision:
11:b842b8e332cb
Parent:
7:bb0383b91104
Child:
20:14daa48ffd4c
--- a/Protocols/Protocols.h	Thu Feb 19 00:33:27 2015 +0000
+++ b/Protocols/Protocols.h	Fri Feb 20 21:32:25 2015 +0000
@@ -10,7 +10,7 @@
 
 #include "mbed.h"
 
-#define RGB18to16(r,g,b)  (((r&0xF8)<<8)|((g&0xFC)<<3)|((b&0xF8)>>3)) //5 red | 6 green | 5 blue
+#define RGB24to16(r,g,b)  (((r&0xF8)<<8)|((g&0xFC)<<3)|((b&0xF8)>>3)) //5 red | 6 green | 5 blue
 #define BGR2RGB(color) (((color&0x1F)<<11) | (color&0x7E0) | ((color&0xF800)>>11))
 
 //#define USE_CS
@@ -84,9 +84,10 @@
     
     /** Read 16bit pixeldata from display controller (with dummy cycle)
     *
+    * @param convert true/false. Convert 18bit to 16bit, some controllers returns 18bit
     * @returns 16bit color
     */ 
-    virtual unsigned short rd_gram() = 0;
+    virtual unsigned short rd_gram(bool convert) = 0;
     
     /** Read 4x8bit register data (with dummy cycle)
     * @param reg the register to read