/// <summary>
/// 启动升级固件
/// </summary>
/// <param name="socket"></param>
/// <param name="ep"></param>
public static byte[] getFirmwareUpdate()
{
try
{
//创建包头
StructHeader header = new StructHeader
{
// 包头
HEAD = GSMCMDEnum.frameHead,
//启动固件升级
CMD = GSMCMDEnum.firmwareUpdate,
//帧长度
LEN = 17
};
//转换大小端
header.LEN = BytesArrayHelper.SwapUInt16(header.LEN);
//通信地址
byte[] comAddr = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
header.COMADDR = comAddr;
//源类型
header.SRC = 0xE1;
//目标类型
header.DEST = 0xA1;
//数据域
byte[] dataBytes = { 0xff };
//转换包头
byte[] headerBytes = StructToBytes(header);
//创建总包bytes
byte[] sendBytes = new byte[17];
//拷贝Header
Array.Copy(headerBytes, 0, sendBytes, 0, headerBytes.Length);
//拷贝xxTea
Array.Copy(dataBytes, 0, sendBytes, headerBytes.Length, dataBytes.Length);
//crc
ushort crc = Crc16.GetCRC16(sendBytes, sendBytes.Length - 5);
// 创建2字节byte数组用于存放校验位
byte[] Check_Arr = new byte[2];
// 获取校验位高8位
Check_Arr[1] = Convert.ToByte(crc >> 8);
// 获取校验位低8位
Check_Arr[0] = Convert.ToByte(crc & 0xFF);
//拷贝crc
Array.Copy(Check_Arr, 0, sendBytes, sendBytes.Length - 5, 2);
//包尾
// sendBytes[sendBytes.Length - 1] = 0x16;
sendBytes[sendBytes.Length - 3] = 0x2d;
sendBytes[sendBytes.Length - 2] = 0x2d;
sendBytes[sendBytes.Length - 1] = 0x45;
//返回数据
return(sendBytes);
}
catch (Exception)
{
return(null);
}
}
/// <summary>
/// 获取固件包
/// </summary>
/// <param name="reportBuffer">串口上报的数据，用于解析请求的index</param>
/// <returns></returns>
public static byte[] getFirmwarePag(byte[] reportBuffer)
{
try
{
//转读固件包结构
ReadUpdateP readPag = (ReadUpdateP)BytesToStruct(reportBuffer, typeof(ReadUpdateP));
//获取Index
int index = readPag.index;
//Index 赋值
Frm_Main.packetIndex = index + 1;
//取升级固件包
Dstruct dataSt = Frm_Main.DataPacks[index];
byte[] data = StructToBytes(dataSt);
//升级包数据域
Updatestruct upStruct = new Updatestruct();
//创建包头
StructHeader header = new StructHeader();
// 添加包头
header.HEAD = GSMCMDEnum.frameHead;
//通信地址
byte[] comAddr = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
header.COMADDR = comAddr;
//源类型
header.SRC = 0xE1;
//目标类型
header.DEST = 0xA1;
//命令码
header.CMD = GSMCMDEnum.ackFirmware;
//帧长度
header.LEN = 14 + 256 + 2 + 3;
//转换大小端
header.LEN = BytesArrayHelper.SwapUInt16(header.LEN);
//升级包编号
upStruct.index = (byte)index;
//固件总长度
UInt16 fileLength = (UInt16)Frm_Main.fileLenth;
//转换大端
fileLength = BytesArrayHelper.SwapUInt16(fileLength);
//设置总长度
upStruct.fileLength = fileLength;
//升级包
upStruct.dPack = data;
//数据域
byte[] dataBytes = new byte[259];
//赋值固件包数据
dataBytes = StructToBytes(upStruct);
//转换包头
byte[] headerBytes = StructToBytes(header);
//创建总包bytes
byte[] sendBytes = new byte[headerBytes.Length + dataBytes.Length + 2 + 3];
//拷贝Header
Array.Copy(headerBytes, 0, sendBytes, 0, headerBytes.Length);
//拷贝xxTea
Array.Copy(dataBytes, 0, sendBytes, headerBytes.Length, dataBytes.Length);
//crc
UInt16 crc = Crc16.GetCRC16(sendBytes, sendBytes.Length - 5);
// 创建2字节byte数组用于存放校验位
byte[] Check_Arr = new byte[2];
// 获取校验位高8位
Check_Arr[1] = Convert.ToByte(crc >> 8);
// 获取校验位低8位
Check_Arr[0] = Convert.ToByte(crc & 0xFF);
//拷贝crc
Array.Copy(Check_Arr, 0, sendBytes, sendBytes.Length - 5, 2);
//包尾
sendBytes[sendBytes.Length - 3] = 0x2d;
sendBytes[sendBytes.Length - 2] = 0x2d;
sendBytes[sendBytes.Length - 1] = 0x45;
//返回数据
return(sendBytes);
}
catch (Exception)
{
//若发送报错则关闭套接字
return(null);
}
}