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/SPI8.h

Revision:
5:b222a9461d6b
Parent:
4:12ba0ecc2c1f
Child:
6:8356d48a07db
--- a/Protocols/SPI8.h	Sun Feb 15 20:06:07 2015 +0000
+++ b/Protocols/SPI8.h	Mon Feb 16 00:52:24 2015 +0000
@@ -72,6 +72,19 @@
     */   
     virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
     
+    /** Read 4x8bit data from display controller (with dummy cycle)
+    *
+    * @returns data as uint
+    *
+    */ 
+    virtual unsigned int rd_data32_wdummy();
+    
+    /** Read 16bit pixeldata from display controller (with dummy cycle)
+    *
+    * @returns 16bit color
+    */ 
+    virtual unsigned short rd_gram();
+    
     /** HW reset sequence (without display init commands)   
     */
     virtual void hw_reset();