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/

Files at this revision

API Documentation at this revision

Revision 18:ffa58f1a680a, committed 2015-03-02

Comitter:
Geremia
Date:
Mon Mar 02 10:35:41 2015 +0000
Parent:
16:244f9563ebc1
Child:
19:1bdfb971b2c1
Commit message:
Added LCD ST7565, compatible with UC1701

Changed in this revision

Display/LCD.cpp Show annotated file Show diff for this revision Revisions of this file
Inits/ILI9341.h Show annotated file Show diff for this revision Revisions of this file
Inits/ILI9486.h Show annotated file Show diff for this revision Revisions of this file
Inits/IST3020.cpp Show annotated file Show diff for this revision Revisions of this file
Inits/IST3020.h Show annotated file Show diff for this revision Revisions of this file
Inits/SSD1306.h Show annotated file Show diff for this revision Revisions of this file
Inits/ST7565.cpp Show annotated file Show diff for this revision Revisions of this file
Inits/ST7565.h Show annotated file Show diff for this revision Revisions of this file
Inits/TFT_MIPI.h Show annotated file Show diff for this revision Revisions of this file
Inits/UC1608.h Show annotated file Show diff for this revision Revisions of this file 
--- a/Display/LCD.cpp	Mon Feb 23 23:36:22 2015 +0000
+++ b/Display/LCD.cpp	Mon Mar 02 10:35:41 2015 +0000
@@ -278,7 +278,7 @@
      //   wr_cmd8(0x10|(col_offset>>4));      // set column hi  nibble
         wr_cmd16(setcolcmd);
         wr_cmd8(0xB0|(page+page_offset));      // set page
-        wr_gram(tmp, screensize_X>>1);   // send whole page pixels =0
+        wr_gram(tmp, screensize_X>>1);   // send whole page pixels = background
     }
 }
 int LCD::sizeX()

--- a/Inits/ILI9341.h	Mon Feb 23 23:36:22 2015 +0000
+++ b/Inits/ILI9341.h	Mon Mar 02 10:35:41 2015 +0000
@@ -15,7 +15,7 @@
  public:
 
     /** Create a PAR display interface
-    * @param displayproto only supports PAR_8
+    * @param displayproto PAR_8 or PAR_16
     * @param port GPIO port name to use
     * @param CS pin connected to CS of display
     * @param reset pin connected to RESET of display
@@ -30,7 +30,7 @@
     ILI9341(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name ,const unsigned int LCDSIZE_X = 240, unsigned  int LCDSIZE_Y = 320);
   
     /** Create an SPI display interface
-    * @param displayproto only supports SPI_8
+    * @param displayproto SPI_8 or SPI_16
     * @param Hz SPI speed in Hz
     * @param mosi SPI pin
     * @param miso SPI pin

--- a/Inits/ILI9486.h	Mon Feb 23 23:36:22 2015 +0000
+++ b/Inits/ILI9486.h	Mon Mar 02 10:35:41 2015 +0000
@@ -15,7 +15,7 @@
  public:
 
     /** Create a PAR display interface
-    * @param displayproto only supports PAR_8
+    * @param displayproto PAR_8 or PAR_16
     * @param port GPIO port name to use
     * @param CS pin connected to CS of display
     * @param reset pin connected to RESET of display
@@ -29,7 +29,7 @@
     ILI9486(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name, unsigned int LCDSIZE_X = 320, unsigned  int LCDSIZE_Y = 480);
   
     /** Create an SPI display interface
-    * @param displayproto only supports SPI_8
+    * @param displayproto SPI_8 or SPI_16
     * @param Hz SPI speed in Hz
     * @param mosi SPI pin
     * @param miso SPI pin

--- a/Inits/IST3020.cpp	Mon Feb 23 23:36:22 2015 +0000
+++ b/Inits/IST3020.cpp	Mon Mar 02 10:35:41 2015 +0000
@@ -5,7 +5,7 @@
 #include "Protocols.h"
 #include "IST3020.h"
 
-/*this is a quite standard config, should be compatible with ST7565, except bigger screen and diff resistor ratio value*/
+/*this is a quite standard config, similar to ST7565, except bigger screen and diff resistor ratio value*/
 
 //////////////////////////////////////////////////////////////////////////////////
 // display settings ///////////////////////////////////////////////////////

--- a/Inits/IST3020.h	Mon Feb 23 23:36:22 2015 +0000
+++ b/Inits/IST3020.h	Mon Mar 02 10:35:41 2015 +0000
@@ -29,7 +29,7 @@
     IST3020(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name, unsigned int LCDSIZE_X = 192, unsigned  int LCDSIZE_Y = 64);
   
     /** Create an SPI display interface
-    * @param displayproto only supports SPI_8
+    * @param displayproto SPI_8 or SPI_16
     * @param Hz SPI speed in Hz
     * @param mosi SPI pin
     * @param miso SPI pin

--- a/Inits/SSD1306.h	Mon Feb 23 23:36:22 2015 +0000
+++ b/Inits/SSD1306.h	Mon Mar 02 10:35:41 2015 +0000
@@ -27,7 +27,7 @@
     SSD1306(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name, unsigned int LCDSIZE_X = 128, unsigned  int LCDSIZE_Y = 64);
   
     /** Create an SPI display interface
-    * @param displayproto only supports SPI_8
+    * @param displayproto SPI_8 or SPI_16
     * @param Hz SPI speed in Hz
     * @param mosi SPI pin
     * @param miso SPI pin

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Inits/ST7565.cpp	Mon Mar 02 10:35:41 2015 +0000
@@ -0,0 +1,76 @@
+ /* mbed UniGraphic library - Device specific class
+ * Copyright (c) 2015 Giuliano Dianda
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+#include "Protocols.h"
+#include "ST7565.h"
+
+/*this is a quite standard config for ST7565 and similars, like UC1701*/
+
+//////////////////////////////////////////////////////////////////////////////////
+// display settings ///////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////
+#define IC_X_SEGS    132 // ST7565 SEG has range 0-131 (131-0 if ADC=1), check your datasheet, important for the orientation
+#define IC_Y_COMS    64  // ST7565 COM has range 0-63 (63-0 if SHL=1), check your datasheet, important for the orientation
+// put in constructor
+//#define LCDSIZE_X       128 // display X pixels, ST7565 is advertised as 132x65 but display size could be smaller
+//#define LCDSIZE_Y       64  // display Y pixels, the 65th is for accessing "icons"
+
+
+
+ST7565::ST7565(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name, unsigned int LCDSIZE_X, unsigned  int LCDSIZE_Y)
+    : LCD(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
+{
+    hw_reset();
+    BusEnable(true);
+    init();
+    cls();
+    set_orientation(1);
+    locate(0,0);
+}
+ST7565::ST7565(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name, unsigned int LCDSIZE_X, unsigned  int LCDSIZE_Y)
+    : LCD(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
+{
+    hw_reset();
+    BusEnable(true);
+    init();
+    cls();
+    set_orientation(1);
+    locate(0,0);
+}
+// reset and init the lcd controller
+// init sequence is manufacturer specific
+void ST7565::init()
+{
+    /* Start Initial Sequence ----------------------------------------------------*/
+    
+    wr_cmd8(0xE2);   //  sw reset
+    wait_ms(10);
+    
+    wr_cmd8(0xAE);   //  display off
+    
+    wr_cmd8(0xA2);   //  bias voltage (1/9)
+  //  wr_cmd8(0xA3);   //  bias voltage (1/7)
+
+    //wr_cmd8(0xA0);   // ADC select seg0-seg131
+    wr_cmd8(0xA1);   // ADC select seg223-seg0
+    //wr_cmd8(0xC8);   // SHL select com63-com0
+    wr_cmd8(0xC0);   // SHL select com0-com63
+
+    wr_cmd8(0x2C);   //   Boost ON
+    wait_ms(10);
+    wr_cmd8(0x2E);   //   Voltage Regulator ON
+    wait_ms(10);
+    wr_cmd8(0x2F);   //   Voltage Follower ON
+    wait_ms(10);
+    wr_cmd8(0x20|0x05);   //  Regulor_Resistor_Select resistor ratio 20-27, look at your display specific init code
+    set_contrast(0x20);
+    //wr_cmd8(0x81);   //  set contrast (reference voltage register set)
+    //wr_cmd8(0x15);   //  contrast 00-3F
+    
+    wr_cmd8(0xA4);   //  LCD display ram (EntireDisplayOn disable)
+    wr_cmd8(0x40);   // start line = 0
+    wr_cmd8(0xA6);     // display normal (1 = illuminated)
+    wr_cmd8(0xAF);     // display ON 
+
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Inits/ST7565.h	Mon Mar 02 10:35:41 2015 +0000
@@ -0,0 +1,58 @@
+#ifndef MBED_ST7565_H
+#define MBED_ST7565_H
+
+
+
+#include "mbed.h"
+#include "LCD.h"
+
+/** Class for ST7565 and similar display controllers
+* to be copypasted and adapted for other controllers
+*/
+class ST7565 : public LCD
+{
+ 
+ public:
+
+    /** Create a PAR display interface
+    * @param displayproto only supports PAR_8
+    * @param port GPIO port name to use
+    * @param CS pin connected to CS of display
+    * @param reset pin connected to RESET of display
+    * @param DC pin connected to data/command of display
+    * @param WR pin connected to SDI of display
+    * @param RD pin connected to RS of display
+    * @param name The name used by the parent class to access the interface
+    * @param LCDSIZE_X x size in pixel - optional
+    * @param LCDSIZE_Y y size in pixel - optional
+    */ 
+    ST7565(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name, unsigned int LCDSIZE_X = 132, unsigned  int LCDSIZE_Y = 64);
+  
+    /** Create an SPI display interface
+    * @param displayproto SPI_8 or SPI_16
+    * @param Hz SPI speed in Hz
+    * @param mosi SPI pin
+    * @param miso SPI pin
+    * @param sclk SPI pin
+    * @param CS pin connected to CS of display
+    * @param reset pin connected to RESET of display
+    * @param DC pin connected to data/command of display
+    * @param name The name used by the parent class to access the interface
+    * @param LCDSIZE_X x size in pixel - optional
+    * @param LCDSIZE_Y y size in pixel - optional
+    */ 
+    ST7565(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char* name, unsigned int LCDSIZE_X = 132, unsigned  int LCDSIZE_Y = 64);
+  
+
+  
+protected:
+    
+    
+    /** Init command sequence  
+    */
+    void init();
+
+
+
+};
+#endif
\ No newline at end of file

--- a/Inits/TFT_MIPI.h	Mon Feb 23 23:36:22 2015 +0000
+++ b/Inits/TFT_MIPI.h	Mon Mar 02 10:35:41 2015 +0000
@@ -16,7 +16,7 @@
  public:
 
     /** Create a PAR display interface
-    * @param displayproto only supports PAR_8
+    * @param displayproto PAR_8 or PAR_16
     * @param port GPIO port name to use
     * @param CS pin connected to CS of display
     * @param reset pin connected to RESET of display
@@ -30,7 +30,7 @@
     TFT_MIPI(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name , unsigned int LCDSIZE_X = 320, unsigned  int LCDSIZE_Y = 480);
   
     /** Create an SPI display interface
-    * @param displayproto only supports SPI_8
+    * @param displayproto SPI_8 or SPI_16
     * @param Hz SPI speed in Hz
     * @param mosi SPI pin
     * @param miso SPI pin

--- a/Inits/UC1608.h	Mon Feb 23 23:36:22 2015 +0000
+++ b/Inits/UC1608.h	Mon Mar 02 10:35:41 2015 +0000
@@ -29,7 +29,7 @@
     UC1608(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char* name, unsigned int LCDSIZE_X = 240, unsigned  int LCDSIZE_Y = 120);
   
     /** Create an SPI display interface
-    * @param displayproto only supports SPI_8
+    * @param displayproto SPI_8 or SPI_16
     * @param Hz SPI speed in Hz
     * @param mosi SPI pin
     * @param miso SPI pin