From b70e9ddb5876baa2265c9d21a36322e99114a3d4 Mon Sep 17 00:00:00 2001
From: mlewis <michael.lewis@erisys.com>
Date: Fri, 10 May 2024 09:47:39 -0400
Subject: [PATCH] .

---
 Arduino-WDT/Arduino-WDT.ino | 131 ++++++++++++++++++++++++++++++++++++
 Desktop/QuitWDT.lnk         | Bin 0 -> 577 bytes
 Desktop/Reboot.lnk          | Bin 0 -> 1243 bytes
 Desktop/TestWDT.lnk         | Bin 0 -> 1250 bytes
 EMSAStartup.py              |   5 ++
 Feed-WDT.py                 | 108 +++++++++++++++++++++++++++++
 QuitWDT.py                  |   6 ++
 Startup/00-Feed-WDT.lnk     | Bin 0 -> 1454 bytes
 Startup/01-SignalVu-PC.lnk  | Bin 0 -> 1726 bytes
 Startup/02-EMSAStartup.lnk  | Bin 0 -> 1460 bytes
 TestWDT.py                  |   6 ++
 port0.py                    |   6 ++
 port1.py                    |   6 ++
 port2.py                    |   6 ++
 port3.py                    |   6 ++
 port4.py                    |   6 ++
 reboot.py                   |  10 +++
 17 files changed, 296 insertions(+)
 create mode 100644 Arduino-WDT/Arduino-WDT.ino
 create mode 100644 Desktop/QuitWDT.lnk
 create mode 100644 Desktop/Reboot.lnk
 create mode 100644 Desktop/TestWDT.lnk
 create mode 100644 EMSAStartup.py
 create mode 100644 Feed-WDT.py
 create mode 100644 QuitWDT.py
 create mode 100644 Startup/00-Feed-WDT.lnk
 create mode 100644 Startup/01-SignalVu-PC.lnk
 create mode 100644 Startup/02-EMSAStartup.lnk
 create mode 100644 TestWDT.py
 create mode 100644 port0.py
 create mode 100644 port1.py
 create mode 100644 port2.py
 create mode 100644 port3.py
 create mode 100644 port4.py
 create mode 100644 reboot.py

diff --git a/Arduino-WDT/Arduino-WDT.ino b/Arduino-WDT/Arduino-WDT.ino
new file mode 100644
index 0000000..210fa92
--- /dev/null
+++ b/Arduino-WDT/Arduino-WDT.ino
@@ -0,0 +1,131 @@
+const int statePin = 3;     // Connect LattePanda's S3 pin to Arduino's D3
+const int resetPin = 4;     // Connect LattePanda's RST pin to Arduino's D4
+const int D10      = 10;
+const int D11      = 11;
+const int D12      = 12;
+ 
+bool          watchdogActive = false;
+unsigned long lastReceivedTime;
+unsigned long currentTime;
+
+bool          lastLEDState = LOW;
+unsigned long lastLEDTime;
+unsigned long currentLEDTime;
+ 
+void setup() 
+{
+  pinMode(LED_BUILTIN, OUTPUT);
+
+  digitalWrite (LED_BUILTIN, LOW);
+  lastLEDTime = millis ();
+  
+  pinMode(statePin, INPUT); // Set as input to read the state pin's level
+  pinMode(resetPin, INPUT); // By default, the RST pin on LattePanda is 3.3V. Initialize Arduino pin as INPUT to match this level.
+
+  pinMode(D10, OUTPUT);
+  pinMode(D11, OUTPUT);
+  pinMode(D12, OUTPUT);
+    
+  Serial.begin(9600);
+}
+ 
+void loop() 
+{ 
+  //-- Check to see if it's time to change the LED state.
+  currentLEDTime = millis ();
+  if (currentLEDTime > lastLEDTime) //-- Check for millis overflow
+  {
+    if (currentLEDTime - lastLEDTime > 1000U)
+    {
+      if (lastLEDState == LOW)
+      {
+        digitalWrite (LED_BUILTIN, HIGH);
+        lastLEDState = HIGH;
+      }
+      else
+      {
+        digitalWrite (LED_BUILTIN, LOW);
+        lastLEDState = LOW;  
+      }
+    
+      lastLEDTime = millis ();
+    }
+  }
+  else
+    lastLEDTime = currentLEDTime;
+     
+  // Check if the watchdog should be activated
+  if (digitalRead (statePin) == HIGH)
+  {
+    if (Serial.available () > 0) 
+    {
+      char receivedChar = Serial.read ();
+      if (receivedChar == 'A') 
+      {
+        watchdogActive = true;
+        lastReceivedTime = millis();
+      }
+      else if (receivedChar == 'Q') 
+      {
+        watchdogActive = false;
+      }
+      else if (receivedChar == '0')
+      {
+        digitalWrite (D10, LOW);
+        digitalWrite (D11, LOW);
+        digitalWrite (D12, LOW);
+      }
+      else if (receivedChar == '1')
+      {
+        digitalWrite (D10, LOW);
+        digitalWrite (D11, LOW);
+        digitalWrite (D12, LOW);
+
+        digitalWrite (D10, HIGH);
+      }
+      else if (receivedChar == '2')
+      {
+        digitalWrite (D10, LOW);
+        digitalWrite (D11, LOW);
+        digitalWrite (D12, LOW);
+
+        digitalWrite (D11, HIGH);
+      }
+      else if (receivedChar == '3')
+      {
+        digitalWrite (D10, LOW);
+        digitalWrite (D11, LOW);
+        digitalWrite (D12, LOW);
+
+        digitalWrite (D10, HIGH);
+        digitalWrite (D11, HIGH);
+      }
+      else if (receivedChar == '4')
+      {
+        digitalWrite (D10, LOW);
+        digitalWrite (D11, LOW);
+        digitalWrite (D12, LOW);
+
+        digitalWrite (D12, HIGH);
+      }
+    }
+  } 
+  else 
+  {
+    watchdogActive = false;
+  }
+
+  // If watchdog is active and 's' character isn't received within 1 minute, reboot LattePanda board
+  currentTime = millis ();
+  if (currentTime > lastReceivedTime) //-- Check for millis overflow and wait for the next cycle if it has
+  {  
+    if (watchdogActive && (currentTime - lastReceivedTime > 60000U))
+    {
+      pinMode(resetPin,OUTPUT);     // Set pin to OUTPUT mode
+      digitalWrite(resetPin, LOW);  // Pull down the RST pin to reboot the LattePanda board
+      delay(50);                    // Maintain a LOW level for 50ms
+      pinMode(resetPin, INPUT);     // Set pin back to INPUT mode to match default 3.3V level of LattePanda's RST pin
+      watchdogActive = false;       // Stop the watchdog function after rebooting the LattePanda board
+    }
+  }
+}
diff --git a/Desktop/QuitWDT.lnk b/Desktop/QuitWDT.lnk
new file mode 100644
index 0000000000000000000000000000000000000000..33d262bc1f6a39f75a67d58d811549faa46fcacb
GIT binary patch
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literal 0
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diff --git a/Desktop/Reboot.lnk b/Desktop/Reboot.lnk
new file mode 100644
index 0000000000000000000000000000000000000000..d0efcfee78ea0fb6f0085b08e407cbbe99f147cd
GIT binary patch
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diff --git a/Desktop/TestWDT.lnk b/Desktop/TestWDT.lnk
new file mode 100644
index 0000000000000000000000000000000000000000..85f0171300ae572e8bb5201e86c58ad628e8b48c
GIT binary patch
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diff --git a/EMSAStartup.py b/EMSAStartup.py
new file mode 100644
index 0000000..8f8e0de
--- /dev/null
+++ b/EMSAStartup.py
@@ -0,0 +1,5 @@
+import os
+import time
+
+time.sleep(30)
+os.system('"C:\\Program Files\\Erisys\\EMSADiagnosticSoftware\\EMSADiagnosticSoftware.exe"')
diff --git a/Feed-WDT.py b/Feed-WDT.py
new file mode 100644
index 0000000..8ac74ce
--- /dev/null
+++ b/Feed-WDT.py
@@ -0,0 +1,108 @@
+import serial
+import serial.tools.list_ports
+import socket
+import sys
+import time
+import traceback
+from threading import Timer
+
+class RepeatedTimer(object):
+    def __init__(self, interval, function, *args, **kwargs):
+        self._timer     = None
+        self.interval   = interval
+        self.function   = function
+        self.args       = args
+        self.kwargs     = kwargs
+        self.is_running = False
+        self.start()
+
+    def _run(self):
+        self.is_running = False
+        self.start()
+        self.function(*self.args, **self.kwargs)
+
+    def start(self):
+        if not self.is_running:
+            self._timer = Timer(self.interval, self._run)
+            self._timer.start()
+            self.is_running = True
+
+    def stop(self):
+        self._timer.cancel()
+        self.is_running = False
+
+def feedWDT (s):
+    sendSerChar (s, b'A')
+
+def sendSerChar (s, c):
+    print ('Sending ' + str (c))
+    s.write(c)
+       
+def find_arduino_leonardo():
+    # Scan for available COM ports
+    ports = serial.tools.list_ports.comports()
+    for port in ports:
+	# Check if "LattePanda Leonardo" is in the description of any found port
+        if "LattePanda Leonardo" in port.description:
+            return port.device
+    return None
+ 
+def main():
+    try:
+        # Locate the Arduino Leonardo on the LattePanda board
+        device = find_arduino_leonardo()
+		
+	# Exit if the device is not found
+        if device is None:
+            print("LattePanda Leonardo device not found. Please check if the device is connected and drivers are installed.")
+            input("Press any key to exit...")
+            sys.exit(1)
+		
+	# Open a Serial connection to the Arduino Leonardo
+        ser = serial.Serial(device, 9600)
+        
+        # Start a repeating timer to feed the watchdog 
+        rt  = RepeatedTimer (30, feedWDT, ser) # it auto-starts, no need of rt.start()
+        
+        # Setup a listening socket
+        s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
+        s.bind (('localhost', 9999))
+        s.listen (5)
+        print ('Server is listening')        
+        
+        while True:
+            print ('Waiting for connection...')
+
+            c, addr = s.accept ()
+
+            print ('Got connection from', addr)
+            
+            data = c.recv (1).decode ('utf-8')
+            if not data:
+                continue
+
+            print ('From online user: ' + data)
+
+            if (data == 'T'):
+                break
+
+            b = bytes (data, 'utf-8')
+            sendSerChar (ser, b)
+            
+            c.close()
+            
+            if (data == 'Q'):
+                break
+
+        RepeatedTimer.stop (rt)
+
+    except Exception as e:
+        # Handle exceptions and print the error message
+        print("An error occurred:")
+        print(str(e))
+        print(traceback.format_exc())
+        input("Press any key to exit...")
+ 
+if __name__ == "__main__":
+    main()
+ 
diff --git a/QuitWDT.py b/QuitWDT.py
new file mode 100644
index 0000000..cd93d0f
--- /dev/null
+++ b/QuitWDT.py
@@ -0,0 +1,6 @@
+import socket
+
+s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
+s.connect (('localhost', 9999))
+s.send (b'Q')
+s.close
\ No newline at end of file
diff --git a/Startup/00-Feed-WDT.lnk b/Startup/00-Feed-WDT.lnk
new file mode 100644
index 0000000000000000000000000000000000000000..49a1d124dafb39e2ccd7127dde703de05c847f3b
GIT binary patch
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diff --git a/Startup/01-SignalVu-PC.lnk b/Startup/01-SignalVu-PC.lnk
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literal 0
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diff --git a/Startup/02-EMSAStartup.lnk b/Startup/02-EMSAStartup.lnk
new file mode 100644
index 0000000000000000000000000000000000000000..3394e84c4ec9c6f3e632dee0662c9d6be1f51248
GIT binary patch
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literal 0
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diff --git a/TestWDT.py b/TestWDT.py
new file mode 100644
index 0000000..17023c3
--- /dev/null
+++ b/TestWDT.py
@@ -0,0 +1,6 @@
+import socket
+
+s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
+s.connect (('localhost', 9999))
+s.send (b'T')
+s.close
diff --git a/port0.py b/port0.py
new file mode 100644
index 0000000..058aa2e
--- /dev/null
+++ b/port0.py
@@ -0,0 +1,6 @@
+import socket
+
+s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
+s.connect (('localhost', 9999))
+s.send (b'0')
+s.close
\ No newline at end of file
diff --git a/port1.py b/port1.py
new file mode 100644
index 0000000..d8d68a7
--- /dev/null
+++ b/port1.py
@@ -0,0 +1,6 @@
+import socket
+
+s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
+s.connect (('localhost', 9999))
+s.send (b'1')
+s.close
\ No newline at end of file
diff --git a/port2.py b/port2.py
new file mode 100644
index 0000000..a3b6fb9
--- /dev/null
+++ b/port2.py
@@ -0,0 +1,6 @@
+import socket
+
+s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
+s.connect (('localhost', 9999))
+s.send (b'2')
+s.close
\ No newline at end of file
diff --git a/port3.py b/port3.py
new file mode 100644
index 0000000..99717c4
--- /dev/null
+++ b/port3.py
@@ -0,0 +1,6 @@
+import socket
+
+s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
+s.connect (('localhost', 9999))
+s.send (b'3')
+s.close
\ No newline at end of file
diff --git a/port4.py b/port4.py
new file mode 100644
index 0000000..49c9fd5
--- /dev/null
+++ b/port4.py
@@ -0,0 +1,6 @@
+import socket
+
+s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
+s.connect (('localhost', 9999))
+s.send (b'4')
+s.close
\ No newline at end of file
diff --git a/reboot.py b/reboot.py
new file mode 100644
index 0000000..cd3c033
--- /dev/null
+++ b/reboot.py
@@ -0,0 +1,10 @@
+import socket
+import os
+
+s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
+s.connect (('localhost', 9999))
+s.send (b'Q')
+s.close
+
+print("REBOOTING")
+os.system("shutdown -t 0 -r -f")