Add support for ST7735 128x128 display

May not cater for 128x128 ST7735 displays with different RGB and offset
configurations.

TFT_Drivers/ST7735_Defines.h

@@ -14,6 +14,7 @@
 #define INITR_BLACKTAB  0x2
 #define INITR_GREENTAB2 0x3 // Use if you get random pixels on two edges of green tab display
 #define INITR_GREENTAB3 0x4 // Use if you get random pixels on edge(s) of 128x128 screen
+#define INITR_GREENTAB128 0x5 // Use if you only get part of 128x128 screen in rotation 0 & 1
 #define INITB           0xB
 
 
@@ -23,13 +24,20 @@
   
 #elif defined (ST7735_GREENTAB)
   #define TAB_COLOUR INITR_GREENTAB
+  #define CGRAM_OFFSET
   
 #elif defined (ST7735_GREENTAB2)
   #define TAB_COLOUR INITR_GREENTAB2
+  #define CGRAM_OFFSET
 
 #elif defined (ST7735_GREENTAB3)
   #define TAB_COLOUR INITR_GREENTAB3
+  #define CGRAM_OFFSET
 
+#elif defined (ST7735_GREENTAB128)
+  #define TAB_COLOUR INITR_GREENTAB128
+  #define CGRAM_OFFSET
+ 
 #elif defined (ST6635_REDTAB)
   #define TAB_COLOUR INITR_REDTAB
   

TFT_Drivers/ST7735_Init.h

@@ -169,6 +169,12 @@
          colstart = 2;
          rowstart = 3;
        }
+       else if (tabcolor == INITR_GREENTAB128)
+       {
+         commandList(Rcmd2green);
+         colstart = 0;
+         rowstart = 32;
+       }
        else if (tabcolor == INITR_REDTAB)
        {
          commandList(Rcmd2red);

TFT_Drivers/ST7735_Rotation.h

@@ -16,6 +16,10 @@
        writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_BGR);
        colstart = 2;
        rowstart = 3;
+     } else if(tabcolor == INITR_GREENTAB128) {
+       writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_MH | TFT_MAD_BGR);
+       colstart = 0;
+       rowstart = 32;
 	 } else {
        writedata(TFT_MAD_MX | TFT_MAD_MY | TFT_MAD_BGR);
      }
@@ -33,7 +37,11 @@
        writedata(TFT_MAD_MY | TFT_MAD_MV | TFT_MAD_BGR);
        colstart = 3;
        rowstart = 2;
-	 } else {
+     } else if(tabcolor == INITR_GREENTAB128) {
+       writedata(TFT_MAD_MV | TFT_MAD_MY | TFT_MAD_BGR);
+       colstart = 32;
+       rowstart = 0;
+	   } else {
        writedata(TFT_MAD_MY | TFT_MAD_MV | TFT_MAD_BGR);
      }
       _width  = TFT_HEIGHT;
@@ -50,7 +58,11 @@
        writedata(TFT_MAD_BGR);
        colstart = 2;
        rowstart = 1;
-     } else {
+     } else if(tabcolor == INITR_GREENTAB128) {
+       writedata(TFT_MAD_BGR);
+       colstart = 0;
+       rowstart = 0;
+	   } else {
        writedata(TFT_MAD_BGR);
      }
       _width  = TFT_WIDTH;
@@ -67,6 +79,10 @@
        writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_BGR);
        colstart = 1;
        rowstart = 2;
+     } else if(tabcolor == INITR_GREENTAB128) {
+       writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_BGR);
+       colstart = 0;
+       rowstart = 0;
 	   } else {
        writedata(TFT_MAD_MX | TFT_MAD_MV | TFT_MAD_BGR);
      }

TFT_eSPI.cpp

@@ -151,12 +151,12 @@ void TFT_eSPI::begin(void)
 void TFT_eSPI::init(void)
 {
 #ifdef TFT_CS
-  csport    = portOutputRegister(digitalPinToPort(TFT_CS));
+  //csport    = portOutputRegister(digitalPinToPort(TFT_CS));
   cspinmask = (uint32_t) digitalPinToBitMask(TFT_CS);
 #endif
 
 #ifdef TFT_DC
-  dcport    = portOutputRegister(digitalPinToPort(TFT_DC));
+  //dcport    = portOutputRegister(digitalPinToPort(TFT_DC));
   dcpinmask = (uint32_t) digitalPinToBitMask(TFT_DC);
 #endif
   
@@ -1476,7 +1476,7 @@ inline void TFT_eSPI::setAddrWindow(int32_t xs, int32_t ys, int32_t xe, int32_t
   addr_col = 0xFFFF;
   addr_row = 0xFFFF;
   
-#if defined (ST7735_DRIVER) && (defined (ST7735_GREENTAB) || defined (ST7735_GREENTAB2) || defined (ST7735_GREENTAB3))
+#ifdef CGRAM_OFFSET
   xs+=colstart;
   xe+=colstart;
   ys+=rowstart;
@@ -1504,21 +1504,6 @@ inline void TFT_eSPI::setAddrWindow(int32_t xs, int32_t ys, int32_t xe, int32_t
   SPI1CMD |= SPIBUSY;
   while(SPI1CMD & SPIBUSY) {}
 
-  // This proves we can only change the byte level bit SPI register read-out order, not the actual byte order
-  // So we can't use this method to avoid coordinate byte order swapping! 
-  //uint32_t x = (xs << 16) | xe;
-  // Swap bits in 32 bit word end for end
-  //x = (((x & 0xAAAAAAAA) >> 1) | ((x & 0x55555555) << 1));
-  //x = (((x & 0xCCCCCCCC) >> 2) | ((x & 0x33333333) << 2));
-  //x = (((x & 0xF0F0F0F0) >> 4) | ((x & 0x0F0F0F0F) << 4));
-  //x = (((x & 0xFF00FF00) >> 8) | ((x & 0x00FF00FF) << 8));
-  //x = (x >> 16) | (x << 16);
-  //SPI1W0 = x;
-  //SPI1C |= (SPICWBO | SPICRBO);  // LSB first
-  //SPI1CMD |= SPIBUSY;
-  //while(SPI1CMD & SPIBUSY) {}
-  //SPI1C &= ~(SPICWBO | SPICRBO); // MSB first = default
-
   // Row addr set
   DC_C;
 
@@ -1690,7 +1675,7 @@ inline void TFT_eSPI::setAddrWindow(int32_t x0, int32_t y0, int32_t x1, int32_t
   addr_col = 0xFFFF;
   addr_row = 0xFFFF;
 
-#if defined (ST7735_DRIVER) && (defined (ST7735_GREENTAB) || defined (ST7735_GREENTAB2) || defined (ST7735_GREENTAB3))
+#ifdef CGRAM_OFFSET
   x0+=colstart;
   x1+=colstart;
   y0+=rowstart;
@@ -1746,7 +1731,7 @@ void TFT_eSPI::readAddrWindow(int32_t xs, int32_t ys, int32_t xe, int32_t ye)
   addr_col = 0xFFFF;
   addr_row = 0xFFFF;
   
-#if defined (ST7735_DRIVER) && (defined (ST7735_GREENTAB) || defined (ST7735_GREENTAB2) || defined (ST7735_GREENTAB3))
+#ifdef CGRAM_OFFSET
   xs+=colstart;
   xe+=colstart;
   ys+=rowstart;
@@ -1812,7 +1797,7 @@ void TFT_eSPI::readAddrWindow(int32_t x0, int32_t y0, int32_t x1, int32_t y1)
   addr_col = 0xFFFF;
   addr_row = 0xFFFF;
 
-#if defined (ST7735_DRIVER) && (defined (ST7735_GREENTAB) || defined (ST7735_GREENTAB2) || defined (ST7735_GREENTAB3))
+#ifdef CGRAM_OFFSET
   x0+=colstart;
   x1+=colstart;
   y0+=rowstart;
@@ -1861,7 +1846,7 @@ void TFT_eSPI::drawPixel(uint32_t x, uint32_t y, uint32_t color)
   // Faster range checking, possible because x and y are unsigned
   if ((x >= _width) || (y >= _height)) return;
   
-#if defined (ST7735_DRIVER) && (defined (ST7735_GREENTAB) || defined (ST7735_GREENTAB2) || defined (ST7735_GREENTAB3))
+#ifdef CGRAM_OFFSET
   x+=colstart;
   y+=rowstart;
 #endif
@@ -2043,7 +2028,7 @@ void TFT_eSPI::drawPixel(uint32_t x, uint32_t y, uint32_t color)
   if ((x >= _width) || (y >= _height)) return;
   spi_begin();
 
-#if defined (ST7735_DRIVER) && (defined (ST7735_GREENTAB) || defined (ST7735_GREENTAB2) || defined (ST7735_GREENTAB3))
+#ifdef CGRAM_OFFSET
   x+=colstart;
   y+=rowstart;
 #endif

User_Setup.h

@@ -31,6 +31,7 @@
 //#define ST7735_GREENTAB
 //#define ST7735_GREENTAB2
 //#define ST7735_GREENTAB3
+//#define ST7735_GREENTAB128 // For 128 x 128 display
 //#define ST7735_REDTAB
 //#define ST7735_BLACKTAB
 
@@ -52,7 +53,7 @@
 // Display LED       to NodeMCU pin VIN (or 5V, see below)
 // Display SCK       to NodeMCU pin D5
 // Display SDI/MOSI  to NodeMCU pin D7
-// Display DC (or AO)to NodeMCU pin D3
+// Display DC (RS/AO)to NodeMCU pin D3
 // Display RESET     to NodeMCU pin D4 (or RST, see below)
 // Display CS        to NodeMCU pin D8 (or GND, see below)
 // Display GND       to NodeMCU pin GND (0V)
@@ -60,6 +61,8 @@
 //
 // The TFT RESET pin can be connected to the NodeMCU RST pin or 3.3V to free up a control pin
 //
+// The DC (Data Command) pin may be labell AO or RS (Register Select)
+//
 // With some displays such as the ILI9341 the TFT CS pin can be connected to GND if no more
 // SPI deivces (e.g. an SD Card) are connected, in this case comment out the #define TFT_CS
 // line below so it is NOT defined. Other displays such at the ST7735 require the TFT CS pin
@@ -146,8 +149,8 @@
 // #define SPI_FREQUENCY   5000000
 // #define SPI_FREQUENCY  10000000
 // #define SPI_FREQUENCY  20000000
- #define SPI_FREQUENCY  27000000 // Actually sets it to 26.67MHz = 80/3
+// #define SPI_FREQUENCY  27000000 // Actually sets it to 26.67MHz = 80/3
-// #define SPI_FREQUENCY  40000000 // Maximum to use SPIFFS
+ #define SPI_FREQUENCY  40000000 // Maximum to use SPIFFS
 // #define SPI_FREQUENCY  80000000
 
 

User_Setup_Select.h

@@ -24,6 +24,7 @@
 //#include <User_Setups/Setup4_S6D02A1.h>  // Setup file configured for my S6D02A1
 //#include <User_Setups/Setup5_RPi_ILI9486.h>     // Setup file configured for my stock RPi TFT
 //#include <User_Setups/Setup6_RPi_Wr_ILI9486.h>  // Setup file configured for my modified RPi TFT
+//#include <User_Setups/Setup7_ST7735_128x128.h>  // Setup file configured for my ST7735 128x128 display
 
 //#include <User_Setups/SetupX_Template.h> // Setup file template for copying/editting
 
@@ -32,7 +33,7 @@
 /////////////////////////////////////////////////////////////////////////////////////
 //                                                                                 //
 //     DON'T TINKER WITH ANY OF THE FOLLOWING LINES, THESE ADD THE TFT DRIVERS     //
-//                     THEY ARE HERE FOR BODMER'S CONVENIENCE!                     //
+//       AND ESP8266 PIN DEFINITONS THEY ARE HERE FOR BODMER'S CONVENIENCE!        //
 //                                                                                 //
 /////////////////////////////////////////////////////////////////////////////////////
 

library.json

@@ -1,6 +1,6 @@
 {
   "name": "TFT_eSPI",
-  "version": "0.16.3",
+  "version": "0.16.4",
   "keywords": "TFT, ESP8266, NodeMCU, ILI9341, ST7735, ILI9163, S6D02A1, ILI9486",
   "description": "A TFT SPI graphics library for ESP8266",
   "repository":

library.properties

@@ -1,5 +1,5 @@
 name=TFT_eSPI
-version=0.16.3
+version=0.16.4
 author=Bodmer
 maintainer=Bodmer
 sentence=A fast TFT library for ESP8266 processors and the Arduino IDE