add 4inch epd 4 grayscale.

STM32/STM32-F103ZET6/User/Examples/EPD_4in2_test.c

@@ -29,11 +29,14 @@
 ******************************************************************************/
 #include "EPD_Test.h"
 #include "EPD_4in2.h"
+#include <string.h>
 
 int EPD_4in2_test(void)
 {
     printf("EPD_4IN2_test Demo\r\n");
-    DEV_Module_Init();
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
 
     printf("e-Paper Init and Clear...\r\n");
     EPD_4IN2_Init();
@@ -50,8 +53,7 @@ int EPD_4in2_test(void)
     }
     printf("Paint_NewImage\r\n");
     Paint_NewImage(BlackImage, EPD_4IN2_WIDTH, EPD_4IN2_HEIGHT, 0, WHITE);
-
-
+    
 #if 1   // show image for array   
     printf("show image for array\r\n");
     Paint_SelectImage(BlackImage);
@@ -89,17 +91,95 @@ int EPD_4in2_test(void)
 
     printf("EPD_Display\r\n");
     EPD_4IN2_Display(BlackImage);
-    DEV_Delay_ms(2000);
+	DEV_Delay_ms(2000);
+#endif
+	printf("Support for partial refresh, but the refresh effect is not good, but it is not recommended\r\n");
+#if 0
+	printf("Partial refresh\r\n");
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 20;
+	for (;;) {
+		sPaint_time.Sec = sPaint_time.Sec + 1;
+		if (sPaint_time.Sec == 60) {
+			sPaint_time.Min = sPaint_time.Min + 1;
+			sPaint_time.Sec = 0;
+			if (sPaint_time.Min == 60) {
+				sPaint_time.Hour =  sPaint_time.Hour + 1;
+				sPaint_time.Min = 0;
+				if (sPaint_time.Hour == 24) {
+					sPaint_time.Hour = 0;
+					sPaint_time.Min = 0;
+					sPaint_time.Sec = 0;
+				}
+			}
+		}
+		Paint_ClearWindows(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, WHITE);
+		Paint_DrawTime(150, 80, &sPaint_time, &Font20, WHITE, BLACK);
+		EPD_4IN2_PartialDisplay(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, BlackImage);
+		DEV_Delay_ms(500);//Analog clock 1s
+		num = num - 1;
+		if(num == 0) {
+			break;
+		}
+    }
 #endif
 
-    printf("Clear...\r\n");
-    EPD_4IN2_Clear();
+	EPD_4IN2_Init_4Gray();
+	printf("show Gray------------------------\r\n");
+	free(BlackImage);
+	BlackImage = NULL;
+	Imagesize = ((EPD_4IN2_WIDTH % 8 == 0)? (EPD_4IN2_WIDTH / 4 ): (EPD_4IN2_WIDTH / 4 + 1)) * EPD_4IN2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+	Paint_NewImage(BlackImage, EPD_4IN2_WIDTH, EPD_4IN2_HEIGHT, 0, WHITE);
+	Paint_SetScale(4);
+	Paint_Clear(WHITE);
+	
+	Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(140, 0, "ÄãºÃabc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(140, 40, "ÄãºÃabc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(140, 80, "ÄãºÃabc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(140, 120, "ÄãºÃabc", &Font12CN, GRAY4, GRAY1);
+	
+    Paint_DrawString_CN(220, 0, "΢ѩµç×Ó", &Font24CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(220, 40, "΢ѩµç×Ó", &Font24CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(220, 80, "΢ѩµç×Ó", &Font24CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(220, 120, "΢ѩµç×Ó", &Font24CN, GRAY4, GRAY1);
+	
+	EPD_4IN2_4GrayDisplay(BlackImage);
+	DEV_Delay_ms(500);
+	
+	Paint_Clear(WHITE);
+  EPD_4IN2_4GrayDisplay(gImage_4in2_4Gray);
+	DEV_Delay_ms(2000);
 
+	
+	EPD_4IN2_Clear();
+	
     printf("Goto Sleep...\r\n");
     EPD_4IN2_Sleep();
     free(BlackImage);
     BlackImage = NULL;
-
+	
     // close 5V
     printf("close 5V, Module enters 0 power consumption ...\r\n");
     DEV_Module_Exit();

STM32/STM32-F103ZET6/User/Examples/ImageData.h

@@ -57,6 +57,7 @@ extern const unsigned char gImage_2in13c_y[];
 extern const unsigned char gImage_2in13d[];
 
 extern const unsigned char gImage_4in2[];
+extern const unsigned char gImage_4in2_4Gray[];
 extern const unsigned char gImage_4in2bc_b[];
 extern const unsigned char gImage_4in2bc_ry[];