Код: using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
long x = 0, y, btn2 = 0;
byte[] buffer = new byte[1000000];
UInt32 fsize;
static FileStream fsr = new FileStream("D:\\project_name.bin", FileMode.Open, FileAccess.Read);
static FileStream fsw = new FileStream("D:\\update.bin", FileMode.Create, FileAccess.Write);
BinaryWriter bw = new BinaryWriter(fsw);
BinaryReader br = new BinaryReader(fsr);
public Form1()
{
InitializeComponent();
}
private UInt16 crc16(byte[] data_p, UInt32 length)
{
byte i;
UInt16 data_;
UInt16 crc = 0xffff;
UInt32 idx = 0;
if (length == 0)
return ((UInt16)~crc);
do
{
for (i = 0, data_ = (UInt16)((UInt16)0xff & (byte)data_p[idx]);
i < 8;
i++, data_ >>= 1)
{
if (((crc & 0x0001) ^ (data_ & 0x0001)) != 0)
crc = (UInt16)((crc >> 1) ^ 0x8408);
else
crc = (UInt16)(crc >> 1);
}
idx++;
}
while (--length != 0);
crc = (UInt16)~crc;
data_ = crc;
crc = (UInt16)((crc << 8) | (data_ >> 8 & 0xff));
return (crc);
}
private void button1_Click(object sender, EventArgs e)
{
fsize = (UInt32)fsr.Length;
UInt16 crc;
button1.Enabled = false;
button1.Update();
buffer[0] = (byte)'S';
buffer[1] = (byte)'e';
buffer[2] = (byte)'C';
buffer[3] = (byte)'r';
buffer[4] = (byte)'E';
buffer[5] = (byte)'t';
br.Read(buffer, 6, (Int32)fsize);
for (x = 6; x < fsize + 6; x++)
{
buffer[x] += (byte)(x-6);
buffer[x] = (byte)~buffer[x];
buffer[x] = (byte)((byte)(buffer[x] << 4) | (byte)(buffer[x] >> 4));
buffer[x] += (byte)(x-6);
if (x >= 6)
bw.Write(buffer[x]);
}
crc = crc16(buffer, fsize+6);
buffer[fsize + 6] = (byte)(crc);
bw.Write(buffer[fsize + 6]);
buffer[fsize + 6 + 1] = (byte)(crc >> 8);
bw.Write(buffer[fsize + 6 + 1]);
//MessageBox.Show("FILE WRITTEN", "[update.bin]");
br.Close();
bw.Close();
fsr.Close();
fsw.Close();
button1.Text = "FILE [update.bin] WRITTEN!";
button1.Update();
System.Threading.Thread.Sleep(1000);
Form1.ActiveForm.Close();
}
}
} | 
