Add support for ST7789 display (240 x 240)

TFT_Drivers/ST7789_Defines.h

+// Change the width and height if required (defined in portrait mode)
+// or use the constructor to over-ride defaults
+#define TFT_WIDTH  240
+#define TFT_HEIGHT 240
+
+
+// Delay between some initialisation commands
+#define TFT_INIT_DELAY 0x80 // Not used unless commandlist invoked
+
+
+// Generic commands used by TFT_eSPI.cpp
+#define TFT_NOP     0x00
+#define TFT_SWRST   0x01
+
+#define TFT_SLPIN   0x10
+#define TFT_SLPOUT  0x11
+
+#define TFT_NORON   0x13
+
+#define TFT_INVOFF  0x20
+#define TFT_INVON   0x21
+
+#define TFT_DISPOFF 0x28
+#define TFT_DISPON  0x29
+
+#define TFT_CASET   0x2A
+#define TFT_PASET   0x2B
+#define TFT_RAMWR   0x2C
+
+#define TFT_RAMRD   0x2E
+
+#define TFT_MADCTL  0x36
+
+#define TFT_COLMOD  0x3A
+
+#define TFT_MAD_MY  0x80
+#define TFT_MAD_MX  0x40
+#define TFT_MAD_MV  0x20
+#define TFT_MAD_ML  0x10
+#define TFT_MAD_RGB 0x00
+#define TFT_MAD_BGR 0x08
+#define TFT_MAD_MH  0x04
+#define TFT_MAD_SS  0x02
+#define TFT_MAD_GS  0x01
+
+#define TFT_IDXRD   0x00 // ILI9341 only, indexed control register read
+
+

TFT_Drivers/ST7789_Init.h

+
+// This is the command sequence that initialises the ST7789 driver
+
+// Configure ST7789 display
+{
+static const uint8_t PROGMEM
+  st7789[] = {
+    9,
+    TFT_SWRST, TFT_INIT_DELAY, 150,
+    TFT_SLPOUT, TFT_INIT_DELAY, 255,
+    TFT_COLMOD, 1+TFT_INIT_DELAY, 0x55, 10,
+    TFT_MADCTL, 1, 0x00,
+    TFT_CASET, 4, 0x00, 0x00, 0x00, 0xF0,
+    TFT_PASET, 4, 0x00, 0x00, 0x00, 0xF0,
+    TFT_INVON, TFT_INIT_DELAY, 10,
+    TFT_NORON, TFT_INIT_DELAY, 10,
+    TFT_DISPON, TFT_INIT_DELAY, 255
+    };
+
+    commandList(st7789);
+}
+// End of ST7789 display configuration
+
+
+

TFT_Drivers/ST7789_Rotation.h

+  // This is the command sequence that rotates the ST7789 driver coordinate frame
+
+  writecommand(TFT_MADCTL);
+  rotation = m % 4;
+  switch (rotation) {
+   case 0: // Portrait
+     writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_RGB);
+      _width  = TFT_WIDTH;
+      _height = TFT_HEIGHT;
+     break;
+   case 1: // Landscape (Portrait + 90)
+     writedata(TFT_MAD_MV | TFT_MAD_MY | TFT_MAD_RGB);
+      _width  = TFT_HEIGHT;
+      _height = TFT_WIDTH;
+     break;
+   case 2: // Inverter portrait
+     writedata(TFT_MAD_RGB);
+      _width  = TFT_WIDTH;
+      _height = TFT_HEIGHT;
+     break;
+   case 3: // Inverted landscape
+     writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_RGB);
+      _width  = TFT_HEIGHT;
+      _height = TFT_WIDTH;
+     break;
+  }

TFT_eSPI.cpp

@@ -331,6 +331,9 @@ void TFT_eSPI::init(uint8_t tc)
 #elif defined (HX8357D_DRIVER)
     #include "TFT_Drivers/HX8357D_Init.h"
 
+#elif defined (ST7789_DRIVER)
+    #include "TFT_Drivers/ST7789_Init.h"
+
 #endif
 
   spi_end();
@@ -375,6 +378,9 @@ void TFT_eSPI::setRotation(uint8_t m)
 #elif defined (HX8357D_DRIVER)
     #include "TFT_Drivers/HX8357D_Rotation.h"
 
+#elif defined (ST7789_DRIVER)
+    #include "TFT_Drivers/ST7789_Rotation.h"
+
 #endif
 
   delayMicroseconds(10);

User_Setup.h

@@ -23,6 +23,7 @@
 //#define HX8357D_DRIVER
 //#define ILI9481_DRIVER
 //#define ILI9488_DRIVER
+//#define ST7789_DRIVER
 
 // For M5Stack ESP32 module with integrated display ONLY, remove // in line below
 //#define M5STACK

User_Setup_Select.h

@@ -38,6 +38,7 @@
 //#include <User_Setups/Setup15_HX8357D.h>           // Setup file configured for HX8357D (untested)
 //#include <User_Setups/Setup16_ILI9488_Parallel.h>  // Setup file for the ESP32 with parallel bus TFT
 //#include <User_Setups/Setup17_ePaper.h>            // Setup file for any Waveshare ePaper display
+//#include <User_Setups/Setup18_ST7789.h>            // Setup file configured for HX8357D (untested)
 
 //#include <User_Setups/SetupX_Template.h>
 
@@ -82,6 +83,9 @@
 #elif defined (EPD_DRIVER)
      #include "TFT_Drivers/EPD_Defines.h"
      #define  TFT_DRIVER 0xE9D
+#elif defined (ST7789_DRIVER)
+     #include "TFT_Drivers/ST7789_Defines.h"
+     #define  TFT_DRIVER 0x7789
 #elif defined (XYZZY_DRIVER)  // <<<<<<<<<<<<<<<<<<<<<<<< ADD NEW DRIVER HERE
      #include "TFT_Drivers/XYZZY_Defines.h"
      #define  TFT_DRIVER 0x0000