add sd card read and delete commands

.gitignore

@@ -0,0 +1,3 @@
+logdata_visualization/logs/*
+*.sync-conflict*
+*.FCStd1

controller_teensy/include/logging.h

@@ -10,9 +10,16 @@
 boolean datalogging=true;
 String datalogging_filename="UNKNOWN.txt";
 
+bool serialCommandEcho_Enabled=true;
+
 bool initLogging();
 void loggingLoop(unsigned long loopmillis,ESCSerialComm& escFront, ESCSerialComm& escRear);
 void writeLogComment(unsigned long time, String msg);
+void printFileListing();
+void printDirectory(File dir, int numTabs,String parent);
+void printFile(String filename);
+void removeFile(String filename);
+void serialCommandLoop();
 
 
 bool initLogging() {
@@ -33,7 +40,7 @@ bool initLogging() {
           sprintf(buffer, "%04d", filenumber);
           datalogging_filename="LOG_"+String(buffer)+".TXT";
           while(SD.exists(datalogging_filename.c_str()) && filenumber<10000) {
-              Serial.print(datalogging_filename); Serial.println(" exists");
+              //Serial.print(datalogging_filename); Serial.println(" exists");
               filenumber++;
               sprintf(buffer, "%04d", filenumber);
               datalogging_filename="LOG_"+String(buffer)+".TXT";
@@ -227,4 +234,152 @@ void resetTrip() {
   }
 }
 
+
+
+
+void serialCommandLoop() {
+  #define MAX_MESSAGE_LENGTH 80
+
+  uint8_t timeoutcounter=MAX_MESSAGE_LENGTH;
+  
+  while (Serial.available() > 0 && timeoutcounter>0)
+  {
+    timeoutcounter--;
+    
+    static char message[MAX_MESSAGE_LENGTH];
+    static unsigned int message_pos = 0;
+    
+    char inByte = Serial.read();
+    if (inByte == '\r') {
+      break; //ignore CR
+    }
+    
+    
+    if ( inByte != '\n' && (message_pos < MAX_MESSAGE_LENGTH - 1) )
+    {
+      
+      message[message_pos] = inByte;
+      message_pos++;
+    }
+    
+    else
+    {
+      message[message_pos] = '\0';
+      
+      
+      String smessage=String(message);
+
+      if(smessage.equals("echo off")) {
+        serialCommandEcho_Enabled=false;
+      }else if(smessage.equals("echo on")) {
+        serialCommandEcho_Enabled=true;
+      }
+
+      if (serialCommandEcho_Enabled) { //Echo Command
+        Serial.print("$"); Serial.println(message);
+      }
+
+      //Handle Commands
+      if(smessage.equals("test")) {
+        Serial.println("OK");
+      }else if(smessage.equals("ls")) {
+        printFileListing();
+      }else if(smessage.startsWith("cat")) {
+        printFile(smessage.substring(4));
+      }else if(smessage.startsWith("rm")) {
+        removeFile(smessage.substring(3));
+      }else if(smessage.equals("log off")) {
+        datalogging=false;
+        Serial.print("Log disabled: "); Serial.println(datalogging_filename);
+      }else if(smessage.equals("log on")) {
+        datalogging=true;
+        Serial.print("Log enabled: "); Serial.println(datalogging_filename);
+      }
+      
+      message_pos = 0;
+    }
+  }
+}
+
+void printFileListing() {
+  File root;
+  root = SD.open("/");
+
+  printDirectory(root, 0,"");
+}
+
+void printDirectory(File dir, int numTabs,String parent) {
+  bool printSize=false;
+  bool printFullDirectoryNames=true;
+
+  while (true) {
+
+    File entry =  dir.openNextFile();
+    if (! entry) {
+      // no more files
+      break;
+    }
+    if (!printFullDirectoryNames) {
+      for (uint8_t i = 0; i < numTabs; i++) {
+        Serial.print('\t');
+      }
+      
+    }
+
+    if (!entry.isDirectory() || !printFullDirectoryNames) {
+      Serial.print(parent+entry.name());
+    }
+    
+    if (entry.isDirectory()) {
+      if (!printFullDirectoryNames) {
+        Serial.println("/");
+      }
+      printDirectory(entry, numTabs + 1,parent+entry.name()+"/");
+    } else {
+      if (printSize) {
+        // files have sizes, directories do not
+        Serial.print("\t\t");
+        Serial.print(entry.size(), DEC);
+      }
+      Serial.println();
+    }
+    entry.close();
+  }
+}
+
+
+void printFile(String filename) {
+
+  File dataFile = SD.open(filename.c_str(), FILE_READ);
+
+  
+
+  // if the file is available, write to it:
+  if (dataFile) {
+    while (dataFile.available()) {
+      Serial.write(dataFile.read());
+    }
+    dataFile.close();
+  }
+  // if the file isn't open, pop up an error:
+  else {
+    Serial.print("error opening "); Serial.println(filename);
+  }
+  
+}
+
+
+void removeFile(String filename) {
+
+  SD.remove(filename.c_str());
+  if (SD.exists(filename.c_str())) {
+    Serial.println("File still exists");
+  } else {
+    Serial.println("OK");
+  }
+
+}
+
+
+
 #endif

controller_teensy/src/main.cpp

@@ -163,6 +163,8 @@ void setup()
   led_simpeProgress(15,true);
   
   led_simpleProgressWait(); //wait longer if any errors were displayed with led_simpeProgress()
+
+  Serial.println("Ready");
 }
 
 
@@ -360,6 +362,10 @@ void loop() {
     
   }
 
+
+  serialCommandLoop();
+  
+
   looptime_duration=max(looptime_duration,millis()-loopmillis);
 
 }

logdata_visualization/copyLogsFromBobbycar.py

@@ -0,0 +1,111 @@
+
+import serial
+import os
+
+serialport = serial.Serial(port='/dev/ttyACM0', baudrate=115200, timeout=0.1)
+
+def establish_connection():
+
+    serialport.write("\n".encode())
+    
+
+    serialport.write("echo off\n".encode())
+    while len(serialport.readline())>0:
+        continue
+    
+
+    serialport.write("test\n".encode())
+    response = serialport.readline()
+    hrresponse=response.rstrip().decode('ascii')
+    if hrresponse != "OK":
+        print("Unexpected test response:"+str(response))
+        exit()
+
+def get_filenames():
+
+    filenames=[]
+
+    serialport.write("ls\n".encode())
+    while True:            
+            response = serialport.readline()
+            hrresponse=response.rstrip().decode('ascii')
+            if(len(response))>0:
+                #print(hrresponse)
+                filenames.append(hrresponse)
+                
+            else:
+                break
+
+    return filenames
+
+
+def copy_file(source,destination):
+    os.makedirs(os.path.dirname(writefilename), exist_ok=True)
+        
+    with open(writefilename, 'wb') as writer:
+        serialport.write(("cat "+filename+"\n").encode())
+                    
+        while True:
+            
+            response = serialport.readline()
+            hrresponse=response.rstrip().decode('ascii')
+            if(len(response))>0:
+                #print(hrresponse)
+                writer.write(response)
+                
+            else:
+                break
+
+
+def log_off():
+    serialport.write(("log off\n").encode())
+    response = serialport.readline()
+    hrresponse=response.rstrip().decode('ascii')
+    if (not hrresponse.startswith("Log disabled")):
+        print("Unexpected response:"+str(response))
+        exit()
+
+def delete_file(filename):       
+    
+    
+    serialport.write(("rm "+filename+"\n").encode())
+    response = serialport.readline()
+    hrresponse=response.rstrip().decode('ascii')
+    if hrresponse != "OK":
+        print("Unexpected response:"+str(response))
+        exit()
+
+
+if serialport.isOpen():
+    
+    establish_connection()
+    
+
+
+    #Get File List
+    filenames=get_filenames()
+
+
+    #Copy all Files    
+    for filename in filenames:
+        print("Reading file "+filename)
+        writefilename='sdcard/'+filename
+        copy_file(filename,writefilename)
+    
+
+    #Delete all files
+    '''
+    log_off()
+    for filename in filenames:
+        delete_file(filename)
+    '''
+
+    
+
+
+serialport.write("echo on\n".encode())
+
+
+    
+
+serialport.close()