Update display driver

rgerganov · Jan 4, 2024 · a678ae9 · a678ae9
1 parent 2f8b21a
commit a678ae9
Showing 1 changed file with 104 additions and 4 deletions.
diff --git a/target/src/EPD_3in52_rse.c b/target/src/EPD_3in52_rse.c
@@ -1,6 +1,8 @@
 #include "EPD.h"
 #include "debug.h"
 
+static int lut_flag = 0;
+
 static void EPD_SendCommand(UBYTE Reg)
 {
     DEV_Digital_Write(EPD_CS_PIN, 0);
@@ -39,14 +41,110 @@ static void EPD_Refresh()
     EPD_ReadBusy();
 }
 
+const unsigned char lut_R20_GC[] = {
+  0x01,0x0f,0x0f,0x0f,0x01,0x01,0x01,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+};
+const unsigned char lut_R21_GC[] = {
+  0x01,0x4f,0x8f,0x0f,0x01,0x01,0x01,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+};
+const unsigned char lut_R22_GC[] = {
+  0x01,0x0f,0x8f,0x0f,0x01,0x01,0x01,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+};
+const unsigned char lut_R23_GC[] = {
+  0x01,0x4f,0x8f,0x4f,0x01,0x01,0x01,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+};
+const unsigned char lut_R24_GC[] = {
+  0x01,0x0f,0x8f,0x4f,0x01,0x01,0x01,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+};
+
+static void lut_GC()
+{
+    int count;
+    EPD_SendCommand(0x20); // vcom
+    for (count = 0; count < 56; count++) {
+        EPD_SendData(lut_R20_GC[count]);
+    }
+
+    EPD_SendCommand(0x21); // red not use
+    for (count = 0; count < 56; count++) {
+        EPD_SendData(lut_R21_GC[count]);
+    }
+
+    EPD_SendCommand(0x24); // bb b
+    for (count = 0; count < 56; count++) {
+        EPD_SendData(lut_R24_GC[count]);
+    }
+
+    if (lut_flag == 0) {
+        EPD_SendCommand(0x22); // bw r
+        for (count = 0; count < 56; count++) {
+            EPD_SendData(lut_R22_GC[count]);
+        }
+
+        EPD_SendCommand(0x23); // wb w
+        for (count = 0; count < 56; count++) {
+            EPD_SendData(lut_R23_GC[count]);
+        }
+        lut_flag = 1;
+    } else {
+        EPD_SendCommand(0x22); // bw r
+        for (count = 0; count < 56; count++) {
+            EPD_SendData(lut_R23_GC[count]);
+        }
+
+        EPD_SendCommand(0x23); // wb w
+        for (count = 0; count < 56; count++) {
+            EPD_SendData(lut_R22_GC[count]);
+        }
+        lut_flag = 0;
+    }
+}
+
 void EPD_Init()
 {
+    lut_flag = 0;
     EPD_Reset();
     DEV_Delay_ms(100);
 
     EPD_SendCommand(0x00); // panel setting register
-    EPD_SendData(0x1F);
+    EPD_SendData(0b00111111);
     EPD_SendData(0x0D);
+
     DEV_Delay_ms(10);
 
     EPD_SendCommand(0x01);      // POWER SETTING   PWR
@@ -57,9 +155,9 @@ void EPD_Init()
     EPD_SendData(0x03);         //  OPTEN VDHR[6:0]  VHDR=6.4V
                                 // T_VDS_OFF[1:0] 00=1 frame; 01=2 frame; 10=3 frame; 11=4 frame
     EPD_SendCommand(0x06);      // booster soft start   BTST
-    EPD_SendData(0b00010111);         //  BT_PHA[7:0]
-    EPD_SendData(0b00010111);         //  BT_PHB[7:0]
-    EPD_SendData(0b00010111);         //  x x BT_PHC[5:0]
+    EPD_SendData(0x17);
+    EPD_SendData(0x37);
+    EPD_SendData(0x3D);
 
     EPD_SendCommand(0x82);      // VCOM_DC setting		VDCS
     EPD_SendData(0x07);         // x  VDCS[6:0]	VCOM_DC value= -1.9v    00~3f,0x12=-1.9v
@@ -100,6 +198,7 @@ void EPD_Clear()
         }
     }
     EPD_SendCommand(0x11);
+    lut_GC();
     EPD_Refresh();
 }
 
@@ -123,6 +222,7 @@ void EPD_Display(const UBYTE *blackImage, const UBYTE *redImage)
         }
     }
     EPD_SendCommand(0x11);
+    lut_GC();
     EPD_Refresh();
 }