Now its sending the resolution to the display

Author: Lisandro

src/drivers/Adafruit_UC8151D.cpp

@@ -2,7 +2,6 @@
 #include "Adafruit_EPD.h"
 
 #define EPD_RAM_BW 0x10
-
 #define BUSY_WAIT 500
 
 /**************************************************************************/
@@ -25,7 +24,10 @@ Adafruit_UC8151D::Adafruit_UC8151D(int width, int height, int16_t SID,
                                    int16_t CS, int16_t SRCS, int16_t MISO,
                                    int16_t BUSY)
     : Adafruit_EPD(width, height, SID, SCLK, DC, RST, CS, SRCS, MISO, BUSY) {
-
+  
+  horizontalResolution = width;
+  verticalResolution  = height;    
+  
   if ((width % 8) != 0) {
     width += 8 - (width % 8);
   }
@@ -62,6 +64,9 @@ Adafruit_UC8151D::Adafruit_UC8151D(int width, int height, int16_t DC,
                                    int16_t BUSY, SPIClass *spi)
     : Adafruit_EPD(width, height, DC, RST, CS, SRCS, BUSY, spi) {
 
+  horizontalResolution = width;
+  verticalResolution  = height;  
+
   if ((height % 8) != 0) {
     height += 8 - (height % 8);
   }
@@ -138,6 +143,7 @@ void Adafruit_UC8151D::powerUp() {
     init_code = _epd_init_code;
   }
   EPD_commandList(init_code);
+  sendResolution();
 
   if (_epd_lut_code) {
     EPD_commandList(_epd_lut_code);
@@ -195,6 +201,21 @@ void Adafruit_UC8151D::setRAMAddress(uint16_t x, uint16_t y) {
   (void)y;
 }
 
+/**************************************************************************/
+/*!
+    @brief Sends the resolution to the EPD
+*/
+/**************************************************************************/
+void Adafruit_UC8151D::sendResolution()
+{
+  const uint8_t uc8151d_resolution_init_code[] {
+    UC8151D_TRES, 3, verticalResolution, 
+    (uint8_t)((horizontalResolution & 0xFF00) >> 8), 
+    (uint8_t)(horizontalResolution & 0x00FF),
+    0xFE};
+  EPD_commandList(uc8151d_resolution_init_code);
+}
+
 /**************************************************************************/
 /*!
     @brief Transfer the data stored in the buffer(s) to the display

src/drivers/Adafruit_UC8151D.h

@@ -26,7 +26,7 @@
 #define UC8151D_PBC 0x44
 #define UC8151D_CDI 0x50
 #define UC8151D_LPD 0x51
-#define UC8151D_TRES 0x65
+#define UC8151D_TRES 0x61
 #define UC8151D_GSST 0x70
 #define UC8151D_REV 0x70
 #define UC8151D_FLG 0x71
@@ -57,7 +57,6 @@ const uint8_t uc8151d_trifull_init_code[] {
   UC8151D_PON, 0,
     0xFF, 10,
     UC8151D_PSR, 2, 0x0F, 0x89,
-    0x61, 3, 0x80, 0x01, 0x28,
     UC8151D_CDI, 1, 0x77,
     0xFE};
 
@@ -69,7 +68,6 @@ const uint8_t uc8151d_partial_init_code[] {
     0xFF, 10,
     UC8151D_PSR, 1, 0xBF,  //LUT from OTP 128x296
     UC8151D_PLL, 1, 0x3C,  // 3A 100HZ   29 150Hz 39 200HZ 31 171HZ
-    0x61, 3, 0x80, 0x01, 0x28, //resolution setting  
     UC8151D_VDCS, 1, 0x12,    //vcom_DC setting
     UC8151D_CDI, 1, 0x47,
     0xFE};
@@ -149,9 +147,12 @@ class Adafruit_UC8151D : public Adafruit_EPD {
   void displayPartial(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);
 
 protected:
+  uint8_t verticalResolution;      
+  uint16_t horizontalResolution;     
   uint8_t writeRAMCommand(uint8_t index);
   void setRAMAddress(uint16_t x, uint16_t y);
   void busy_wait();
+  void sendResolution();
 };
 
 #endif