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/TFT932x.cpp

Revision:
30:87855d03d91a
Parent:
27:acb2594b8aa4
--- a/Display/TFT932x.cpp	Sat Nov 28 18:37:19 2015 +0000
+++ b/Display/TFT932x.cpp	Sun Nov 29 19:58:47 2015 +0000
@@ -37,6 +37,7 @@
     fastwindowready=false;
     is18bit=false;
     isBGR=false;
+    flipped=0;
   //  cls();
   //  locate(0,0);
 }
@@ -66,6 +67,7 @@
     fastwindowready=false;
     is18bit=false;
     isBGR=false;
+    flipped=0;
   //  cls();
   //  locate(0,0);
 }
@@ -90,6 +92,7 @@
     fastwindowready=false;
     is18bit=false;
     isBGR=false;
+    flipped=0;
   //  locate(0,0);
 }
 // dummy read needed before read gram
@@ -161,29 +164,29 @@
     // ORG bit set for all modes
     {
         case 0:// default, portrait view 0°
-            reg_write(0x0001,0x0100); // S720 to S1
-            reg_write(0x0060,0xA700); // G320 to G1
+            reg_write(0x0001,((flipped&FLIP_X)==0) ? 0x0100:0x0000); // S720toS1 or S1toS720
+            reg_write(0x0060,((flipped&FLIP_Y)==0) ? 0xA700:0x2700); // G320toG1 or G1toG320
             reg_write(0x03, 0x10B0);
             set_width(screensize_X);
             set_height(screensize_Y);
             break;
         case 1:// landscape view +90°
-            reg_write(0x0001,0x0000); // S1 to S720
-            reg_write(0x0060,0xA700); // G320 to G1
+            reg_write(0x0001,((flipped&FLIP_X)==0) ? 0x0000:0x0100); // S1toS720 or S720toS1
+            reg_write(0x0060,((flipped&FLIP_Y)==0) ? 0xA700:0x2700); // G320toG1 or G1toG320
             reg_write(0x03, 0x10B8); // AM=1 increase addr ctr first vertically then horizontally
             set_width(screensize_Y);
             set_height(screensize_X);
             break;
         case 2:// portrait view +180°
-            reg_write(0x0001,0x0000); // S1 to S720
-            reg_write(0x0060,0x2700); // G1 to G320
+            reg_write(0x0001,((flipped&FLIP_X)==0) ? 0x0000:0x0100); // S1toS720 or S720toS1
+            reg_write(0x0060,((flipped&FLIP_Y)==0) ? 0x2700:0xA700); // G1toG320 or G320toG1
             reg_write(0x03, 0x10B0);
             set_width(screensize_X);
             set_height(screensize_Y);
             break;
         case 3:// landscape view -90°
-            reg_write(0x0001,0x0100); // S720 to S1
-            reg_write(0x0060,0x2700); // G1 to G320
+            reg_write(0x0001,((flipped&FLIP_X)==0) ? 0x0100:0x0000); // S720toS1 or S1toS720
+            reg_write(0x0060,((flipped&FLIP_Y)==0) ? 0x2700:0xA700); // G1toG320 or G320toG1
             reg_write(0x03, 0x10B8); // AM=1 increase addr ctr first vertically then horizontally
             set_width(screensize_Y);
             set_height(screensize_X);