Cypress Semiconductor CY8C21534 Spezifikationen PDF herunterladen (Seite 64)

Appendix 2

14(15)

// Adds file type to file name

file += ".jpg";

// Opens file access stream

FileStream data = new FileStream(file, FileMode.Open, FileAccess.Read);

// Opens file

FileInfo info = new FileInfo(file);

int len = (int)info.Length;

// Retrieves file size

byte[] bLen = BitConverter.GetBytes(len);

// Sends file size, bytes

writer.Write(bLen, 0, 4);

writer.Flush();

// Sends number of sectors in file

bLen = BitConverter.GetBytes((len / 512) + 1);

writer.Write(bLen);

writer.Write(0);

writer.Flush();

// Displays status

listBox1.Items.Add(" File size sent");

byte[] data2 = new byte[len];

int count = 0, total = 0;

count = data.Read(data2, 0, len);

// Scans incoming bytes, waits for byte 0x53 'S', when schedules MCU is ready for raw

// data

while (sendChar != 0x53)

{

sendChar = reader.ReadChar();

}

// Displays status

listBox1.Items.Add("Sending file...");

// Sends raw data of file

while (total != len)

{

writer.Write(data2, 0, count);

total += count;

}

// Finishes sending data and closes connection, program starts over

writer.Flush();

listBox1.Items.Add(" File sent.");

reader.Close();

writer.Close();

socketStream.Close();

connection.Close();

listBox1.Items.Add("Disconnected.");

listBox1.Items.Add("");

server.Stop();

RunServer();

}

catch(Exception)

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