public void WriteDataflash(Dataflash dataflash, BackgroundWorker worker = null)
{
var checksumBytes = BitConverter.GetBytes(dataflash.Data.Sum(x => x));
var rawData = new byte[dataflash.Data.Length + checksumBytes.Length];
Buffer.BlockCopy(checksumBytes, 0, rawData, 0, checksumBytes.Length);
Buffer.BlockCopy(dataflash.Data, 0, rawData, checksumBytes.Length, dataflash.Data.Length);
using (var stream = OpenDeviceStream())
{
Write(stream, CreateCommand(Commands.WriteDataflash, 0, DataflashLength));
Write(stream, rawData, worker);
}
}
public Dataflash Read(byte[] dataflashBytes)
{
if (dataflashBytes == null)
{
throw new ArgumentNullException("dataflashBytes");
}
using (var br = new BinaryReader(new MemoryStream(dataflashBytes)))
{
var result = new Dataflash();
RecursiveRead(result, br);
return(result);
}
}
public void Write(Dataflash dataflash, byte[] dataflashBytes)
{
if (dataflash == null)
{
throw new ArgumentNullException("dataflash");
}
if (dataflashBytes == null)
{
throw new ArgumentNullException("dataflashBytes");
}
using (var bw = new BinaryWriter(new MemoryStream(dataflashBytes)))
{
RecursiveWrite(dataflash, bw);
}
}
private void WriteDataflashButton_Click(object sender, EventArgs e)
{
string fileName;
using (var op = new OpenFileDialog { Title = @"Select dataflash file ...", Filter = Consts.DataFlashFilter })
{
if (op.ShowDialog() != DialogResult.OK) return;
fileName = op.FileName;
}
try
{
var data = File.ReadAllBytes(fileName);
if (data.Length != 2044)
{
InfoBox.Show("Seems that the dataflash file has the wrong format.");
return;
}
var dataflash = new Dataflash { Data = data };
m_worker.RunWorkerAsync(new AsyncProcessWrapper(worker => WriteDataflashAsyncWorker(worker, dataflash)));
}
catch (Exception ex)
{
InfoBox.Show("An error occured during dataflash reading.\n" + ex.Message);
}
}
private void WriteDataflashAsyncWorker(BackgroundWorker worker, Dataflash dataflash)
{
try
{
UpdateUI(() => UpdateStatusLabel.Text = @"Writing dataflash...");
m_updater.WriteDataflash(dataflash, worker);
UpdateUI(() =>
{
UpdateStatusLabel.Text = @"Dataflash was successfully written.";
worker.ReportProgress(0);
});
}
catch (Exception ex)
{
InfoBox.Show("An exception occured during dataflash reading.\n" + ex.Message);
}
}
public void WriteDataflash(Dataflash dataflash, BackgroundWorker worker = null)
{
var checksumBytes = BitConverter.GetBytes(dataflash.Data.Sum(x => x));
var rawData = new byte[dataflash.Data.Length + checksumBytes.Length];
Buffer.BlockCopy(checksumBytes, 0, rawData, 0, checksumBytes.Length);
Buffer.BlockCopy(dataflash.Data, 0, rawData, checksumBytes.Length, dataflash.Data.Length);
using (var stream = OpenDeviceStream())
{
Write(stream, CreateCommand(Commands.WriteDataflash, 0, DataflashLength));
Write(stream, rawData, worker);
}
}
