private string CheckCode(string str)
{
long result = (long)CRC32Helper.GetCRC32Str(str);
string code = CRC32_PREFIX + Convert.ToString(result, 16).ToUpper().PadLeft(8, '0');
return(code);
}
/// <summary>
/// 读Flash完成
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void readSpiBackgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
startAddress = 0;
//判断是否出错
if (e.Error != null)
{
MessageBoxHelper.ShowError(e.Error.Message);
return;
}
//判断用户是否取消了操作
if (e.Cancelled)
{
this.fileTransmitInfoLabel.Text = Resources.ForceProgramDialog_CancelTransmit;
return;
}
this.fileTransmitInfoLabel.Text = Resources.ForceProgramDialog_ReadSpiCompleted;
if (e.Result != null)
{
spiDataCRC32 = CRC32Helper.CalculateCRC32(e.Result.ToString());
if (spiDataCRC32 != fileCRC32)
{
MessageBoxHelper.ShowError(Resources.ForceProgramDialog_CRC32Failed);
}
else
{
MessageBoxHelper.ShowInfo(Resources.ForceProgramDialog_CRC32Success);
}
}
this.startCompareButton.Enabled = true;
this.stopTransmitButton.Enabled = false;
}
public static string GetUniqueString()
{
//24位唯一编码
//string str = CRC32Helper.GetCRC32(Guid.NewGuid().ToString()) + CRC32Helper.GetCRC32(DateTime.Now.ToString()) + CRC32Helper.GetCRC32(r.Next(99999999).ToString());
//if (str.Length < 24) //包含长度小于24位的结果，调整到24位。
// str = GetUniqueString().PadRight(24, str[0]);
//16位唯一编码
string str = CRC32Helper.GetCRC32(Guid.NewGuid().ToString()) + CRC32Helper.GetCRC32((DateTime.Now.Ticks - r.Next(99999999)).ToString());
if (str.Length < 16) //包含长度小于16位的结果，调整到16位。
{
str = GetUniqueString().PadRight(16, str[0]);
}
return(str);
}
/// <summary>
/// 打开bin文件显示在TextBox中
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void openFilebutton_Click(object sender, EventArgs e)
{
//显示打开文件对话框
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
this.fileNameTextBox.Text = openFileDialog1.FileName;
this.checkSumlabel.Text = string.Format("{0:X8}", CRC32Helper.GetFileCRC32(openFileDialog1.FileName));
fileCRC32 = CRC32Helper.GetFileCRC32(this.fileNameTextBox.Text);
using (FileStream stream = File.Open(openFileDialog1.FileName, FileMode.Open, FileAccess.Read, FileShare.Read))
{
BinaryReader binaryReader = new BinaryReader(stream);
byte[] src = binaryReader.ReadBytes((int)stream.Length);
StringBuilder builder = new StringBuilder();
for (uint i = 0; i < src.Length; i += 16)
{
builder.AppendFormat("{0:X8}: ", i);
for (uint j = 0; j < 16; j++)
{
builder.AppendFormat("{0:X2}", src[i + j]);
if (j < 15)
{
builder.Append(" ");
}
}
if (i < src.Length - 16)
{
builder.Append("\r\n");
}
}
this.binSourceFileTextBox.Text = builder.ToString();
}
}
}
public void GetCRC32StringTest()
{
uint result = CRC32Helper.CalculateCRC32("123456789");
Assert.AreEqual(result, 0xCBF43926u);
}
public void GetCRC32ByteTest()
{
uint result = CRC32Helper.CalculateCRC32(new byte[] { 0x68, 0xFF, 0xFF, 0xAB, 0x13, 0x26 });
Assert.AreEqual(result, 0x27CB9B07u);
}
