From abe28de02229b5ad11543e0a1dd64e4cd9d6a149 Mon Sep 17 00:00:00 2001
From: SSYYL <1032789891@qq.com>
Date: Mon, 19 Jul 2021 16:51:02 +0800
Subject: [PATCH] Adjust reset timing

---
 Arduino/epd7in5_V2/epd7in5_V2.cpp | 12 ++++++++----
 Arduino/epd7in5_V2/epd7in5_V2.ino |  8 +++++---
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/Arduino/epd7in5_V2/epd7in5_V2.cpp b/Arduino/epd7in5_V2/epd7in5_V2.cpp
index 6913910..fdb1a92 100644
--- a/Arduino/epd7in5_V2/epd7in5_V2.cpp
+++ b/Arduino/epd7in5_V2/epd7in5_V2.cpp
@@ -202,10 +202,12 @@ void Epd::SendData(unsigned char data) {
  */
 void Epd::WaitUntilIdle(void) {
     unsigned char busy;
+    Serial.print("e-Paper Busy\r\n ");
     do{
         SendCommand(0x71);
         busy = DigitalRead(busy_pin);
     }while(busy == 0);
+    Serial.print("e-Paper Busy Release\r\n ");
     DelayMs(20);
 }
 
@@ -215,6 +217,8 @@ void Epd::WaitUntilIdle(void) {
  *          see Epd::Sleep();
  */
 void Epd::Reset(void) {
+    DigitalWrite(reset_pin, HIGH);
+    DelayMs(20); 
     DigitalWrite(reset_pin, LOW);                //module reset    
     DelayMs(4);
     DigitalWrite(reset_pin, HIGH);
@@ -296,10 +300,10 @@ void Epd::Sleep(void) {
 
 void Epd::Clear(void) {
     
-    SendCommand(0x10);
-    for(unsigned long i=0; i<height*width; i++) {
-        SendData(0x00);
-    }
+    // SendCommand(0x10);
+    // for(unsigned long i=0; i<height*width; i++) {
+    //     SendData(0x00);
+    // }
     SendCommand(0x13);
     for(unsigned long i=0; i<height*width; i++)	{
         SendData(0x00);
diff --git a/Arduino/epd7in5_V2/epd7in5_V2.ino b/Arduino/epd7in5_V2/epd7in5_V2.ino
index d83e5c0..74762b2 100644
--- a/Arduino/epd7in5_V2/epd7in5_V2.ino
+++ b/Arduino/epd7in5_V2/epd7in5_V2.ino
@@ -30,17 +30,19 @@
 
 void setup() {
   // put your setup code here, to run once:
-    Serial.begin(9600);
+    Serial.begin(115200);
     Epd epd;
     Serial.print("e-Paper init \r\n ");
     if (epd.Init() != 0) {
         Serial.print("e-Paper init failed\r\n ");
         return;
     }
+    
+    Serial.print("e-Paper Display\r\n ");
+    epd.Displaypart(IMAGE_DATA,250, 200,240,103);
+
     Serial.print("e-Paper Clear\r\n ");
     epd.Clear();
-    
-    epd.Displaypart(IMAGE_DATA,250, 200,240,103);
 }
 
 void loop() {