fix Vcom bug

Author: ShallowGreen123

examples/factory/main/ui.cpp

@@ -2497,7 +2497,7 @@ static void create8(lv_obj_t *parent)
     } 
     else 
     {
-        ui_setting_set_vcom(5000);
+        ui_shutdown_vcom(5000);
 
         lv_obj_t * img = lv_img_create(parent);
         lv_img_set_src(img, &img_start);

examples/factory/main/ui_port.cpp

@@ -20,6 +20,10 @@ void ui_nvs_set_defaulat_param(void)
     epd_vcom_default = nvs_param_get_u16(NVS_ID_EPD_VCOM);
     refresh_mode = nvs_param_get_u8(NVS_ID_REFRESH_MODE);
 
+    printf("ui_setting_backlight = %d\n", ui_setting_backlight );
+    printf("epd_vcom_default = %d\n", epd_vcom_default );
+    printf("refresh_mode = %d\n", refresh_mode );
+
     ui_setting_set_backlight(ui_setting_backlight);
 }
 
@@ -496,6 +500,11 @@ void ui_gps_get_speed(double *speed)
 }
 
 //************************************[ screen 8 ]****************************************** shutdown
+void ui_shutdown_vcom(int v)
+{
+    epd_set_vcom(v);
+}
+
 void ui_shutdown(void)
 {
     PPM.shutdown();

examples/factory/main/ui_port.h

@@ -111,6 +111,7 @@ void ui_gps_get_time(uint8_t *hour, uint8_t *minute, uint8_t *second);
 void ui_gps_get_satellites(uint32_t *vsat);
 void ui_gps_get_speed(double *speed);
 // shutdown
+void ui_shutdown_vcom(int v);
 void ui_shutdown(void);
 
 void ui_sleep(void);