DBCExample

using jnsoft.Comm.CAN;
using System;
using System.Linq;
using System.Windows.Forms;

namespace jnsoft.DBC.Examples
{
  /// <summary>
  /// ASAP2ibrary DBC handling demonstration.
  ///
  /// - Loading an DBC file
  /// - Register to receive CAN frames on a kvaser (as an example) CAN hardware.
  /// - Print a first valid signal while receiving CAN frames.
  ///
  /// Usage: DBCExample DBCFile.dbc
  /// </summary>
  class Program
  {
    static DBCFile mDBCFile;
    static int Main(string[] args)
    {
      var orgColor = Console.ForegroundColor;
      try
      {
        Console.ForegroundColor = ConsoleColor.White;
        if (args.Length != 1)
        { // no args -> present usage
          Console.WriteLine($"{Application.ProductName}({Application.ProductVersion})");
          Console.WriteLine("Read a DBC file, interprete values received from the CAN Bus and print them...");
          Console.WriteLine("Required input: a DBC file");
          Console.WriteLine($"Usage: {Application.ProductName} DBCFile.dbc");
          return -1;
        }

        // Open the DBC file
        mDBCFile = DBCFile.open(args[0]);

        // Create a CAN provider on Port 0 with 1 Mit/s and
        ICANProvider canProvider = new Comm.CAN.Kvaser.KvaserCAN();
        canProvider.open(new CANConfiguration(0, CANBaudrate._1MBit));

        // register to receive any CAN frame from the CAN BUS.
        canProvider.registerClient((o, e) => { mDBCFile.onCANReceived(e.Frame); });

        // Get a DBC source with at least one valid CAN message defined
        var source = mDBCFile.Sources.Values.FirstOrDefault(s => s.Messages.Count > 0 && s.Messages.FirstOrDefault(x => x.IsValid) != null);

        // Get a message defined with a valid CAN Id and at least one signal defined
        var message = source.Messages.FirstOrDefault(m => m.IsValid && m.Signals.Count > 0);

        // Get a signal with the message
        var signal = message?.Signals.FirstOrDefault();

        if (signal != null)
        {
          // signal is valid
          Console.WriteLine($"Press ESC to quit, any other key to refresh current values...");
          Console.ForegroundColor = ConsoleColor.Green;

          int count = 0;
          do
          { // refresh signal data
            var strId = CANProvider.toCANIDString(message.ID);
            var time = message.LastUpdate;
            var strValue = signal.toStringValue();
            Console.Write($"\rRequest {count++}: Time:{time:HH:mm:ss} Source:{source} Message:{message.Name}({strId}) Signal:{signal.Name} Value={strValue}");
          } while (Console.ReadKey(true).Key != ConsoleKey.Escape);

          return 0;
        }
      }
      catch (Exception ex)
      {
        Console.ForegroundColor = ConsoleColor.Red;
        Console.WriteLine($"Something failed, file or signal not found or unsupported!\nDetails:\n{ex.Message}");
      }
      finally { Console.ForegroundColor = orgColor; }
      return -1;
    }
  }
}