Initial Commit

2024-08-25 18:33:44 +02:00
commit 2fbe224e8b
5 changed files with 323 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
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+++ b/Cargo.lock
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--- a/Cargo.toml
+++ b/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "heartbeat"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+serialport = "4.5.0"
--- a/src/main.rs
+++ b/src/main.rs
@@ -0,0 +1,61 @@
+use serialport::{available_ports, SerialPortType};
+
+fn main() {
+    match available_ports() {
+        Ok(ports) => {
+            match ports.len() {
+                0 => println!("No ports found."),
+                1 => println!("Found 1 port:"),
+                n => println!("Found {} ports:", n),
+            };
+            for p in ports {
+                println!("  {}", p.port_name);
+                match p.port_type {
+                    SerialPortType::UsbPort(info) => {
+                        println!("    Type: USB");
+                        println!("    VID:{:04x} PID:{:04x}", info.vid, info.pid);
+                        println!(
+                            "     Serial Number: {}",
+                            info.serial_number.as_ref().map_or("", String::as_str)
+                        );
+                        println!(
+                            "      Manufacturer: {}",
+                            info.manufacturer.as_ref().map_or("", String::as_str)
+                        );
+                        println!(
+                            "           Product: {}",
+                            info.product.as_ref().map_or("", String::as_str)
+                        );
+                        #[cfg(feature = "usbportinfo-interface")]
+                        println!(
+                            "         Interface: {}",
+                            info.interface
+                                .as_ref()
+                                .map_or("".to_string(), |x| format!("{:02x}", *x))
+                        );
+                    }
+                    SerialPortType::BluetoothPort => {
+                        println!("    Type: Bluetooth");
+                    }
+                    SerialPortType::PciPort => {
+                        println!("    Type: PCI");
+                    }
+                    SerialPortType::Unknown => {
+                        println!("    Type: Unknown");
+                    }
+                }
+            }
+        }
+        Err(e) => {
+            eprintln!("{:?}", e);
+            eprintln!("Error listing serial ports");
+        }
+    }
+}
+
+fn setup(){
+    //TODO find serial port of microcontroller and connect to it
+}
+fn heartbeat(){
+    //TODO send heartbeat every interval, then sleep and repeat
+}
--- a/watchdog.ino
+++ b/watchdog.ino
@@ -0,0 +1,48 @@
+const int MAX_SILENCE_MILLIS = 2000;  
+
+unsigned long startTimeMillis;
+void setup() 
+{
+  Serial.begin(9600);
+  waitForSerial();
+  //NOTE might want to replace this initialization with a check in the first loop, so we dont instantly reboot
+  startTimeMillis = millis(); 
+
+}
+
+void loop() {
+  unsigned long currentTimeMillis = millis();
+  unsigned long tickMillis = currentTimeMillis - startTimeMillis;
+  if (tickMillis > MAX_SILENCE_MILLIS){rst();}
+  if (Serial.available() > 0) { // if something has been written to the serial port
+    startTimeMillis = millis();
+
+
+    int value = Serial.parseInt();
+    
+    if(value > 0)
+    {
+      Serial.print("Number: ");
+      Serial.print(value);
+      Serial.print(", hex: ");
+      Serial.print(value, HEX);
+      Serial.print(", bin: ");
+      Serial.println(value, BIN);
+    }
+  }
+}
+
+
+void rst(){
+  //TODO connect the RST pins on the motherboard
+  Serial.println("Error!");
+  waitForSerial();
+}
+
+/*
+busy wait for first serial signal
+*/
+void waitForSerial(){
+    while(Serial.available() == 0){}
+}
+