public BCP_FrameHandler(BCPHeader head, byte length_H, byte length_L) //无数据，但数据长度由用户指定
{
CRC16 crc6_modbus = new CRC16();
this.bcp_ProcessedFrame = new byte[14];
this.bcp_ProcessedFrame[0] = head.Frame_Head;
this.bcp_ProcessedFrame[1] = head.Protocal_Num;
this.bcp_ProcessedFrame[2] = head.Version_Num;
this.bcp_ProcessedFrame[3] = head.Target_Addr;
this.bcp_ProcessedFrame[4] = head.Source_Addr;
this.bcp_ProcessedFrame[5] = head.Port_Num;
this.bcp_ProcessedFrame[6] = head.Control_Code;
this.bcp_ProcessedFrame[7] = 0x00; //保留
this.bcp_ProcessedFrame[8] = head.StartReg_Addr_L;
this.bcp_ProcessedFrame[9] = head.StartReg_Addr_H;
this.bcp_ProcessedFrame[10] = length_L; //数据长度由用户指定
this.bcp_ProcessedFrame[11] = length_H;
byte[] arrayForCRC = new byte[this.bcp_ProcessedFrame.Length - 2]; //不包括 CRC_L，CRC_H
for (int i = 0; i < arrayForCRC.Length; i++)
{
arrayForCRC[i] = this.bcp_ProcessedFrame[i];
}
crc6_modbus.CRC16_modbus(arrayForCRC, arrayForCRC.Length); //计算出CRC校验码
this.bcp_ProcessedFrame[this.bcp_ProcessedFrame.Length - 2] = crc6_modbus.getCRC16_L();
this.bcp_ProcessedFrame[this.bcp_ProcessedFrame.Length - 1] = crc6_modbus.getCRC16_H();
}
public bool enterData(BCPHeader h, byte length_H, byte length_L)
{
BCP_FrameHandler bcp_frame = new BCP_FrameHandler(h, length_H, length_L);
bcp_frame.getBCP_Frame(ref this.IAP_frame); //将结果复制出来
this.currentCRC[0] = this.IAP_frame[this.IAP_frame.Length - 2];
this.currentCRC[1] = this.IAP_frame[this.IAP_frame.Length - 1];
return(true);
}
/*重新载入第一帧*/
public bool reloadFirstFrame(byte targetAddr, byte srcAddr)
{
if (this.config_data == null)
{
return(false);
}
setCurrentFrameNum(0);
if (this.currentFrameNum == totalFrameNum)
{
return(false);
}
int leftBytesNum = this.config_data.Length - this.currentFrameNum * frameDataSize; //剩余的字节数
byte[] rawData = null;
if (leftBytesNum < frameDataSize)
{
rawData = new byte[leftBytesNum];
for (int i = 0; i < leftBytesNum; i++)
{
rawData[i] = this.config_data[currentFrameNum * frameDataSize + i];
}
}
else
{
rawData = new byte[frameDataSize];
this.currentFrame.IAP_frame = new byte[frameDataSize]; //下一帧满2k
for (int i = 0; i < 1024; i++)
{
rawData[i] = this.config_data[currentFrameNum * frameDataSize + i];
}
}
BCPHeader h = new BCPHeader();
h.Frame_Head = 0x7e;
h.Protocal_Num = 0x00;
h.Version_Num = 0x00;
h.Target_Addr = targetAddr;
h.Source_Addr = srcAddr;
h.Port_Num = 0x00;
h.Control_Code = 0x11;
h.StartReg_Addr_L = (byte)((this.currentFrameNum + 1) & 0x0f);
h.StartReg_Addr_H = (byte)((this.currentFrameNum + 1) & 0xf0);
this.currentFrame.enterData(h, rawData);
currentFrameNum++; //当前帧数加1
return(true);
}
/*获取下一帧*/
public bool loadNextFrame(byte targetAddr, byte srcAddr)
{
if (this.config_data == null)
{
return(false);
}
if (this.currentFrameNum == totalFrameNum)
{
return(false);
}
int leftBytesNum = this.config_data.Length - this.currentFrameNum * frameDataSize; //剩余的字节数
byte[] rawData = null; //需要传送的裸数据
if (leftBytesNum < frameDataSize) //下一帧的大小不足文本框中设定的一帧的大小
{
rawData = new byte[leftBytesNum];
for (int i = 0; i < leftBytesNum; i++)
{
rawData[i] = this.config_data[currentFrameNum * frameDataSize + i];
}
}
else
{
rawData = new byte[frameDataSize];
this.currentFrame.IAP_frame = new byte[frameDataSize]; //下一帧的大小为文本框中设定的一帧的大小
for (int i = 0; i < frameDataSize; i++)
{
rawData[i] = this.config_data[currentFrameNum * frameDataSize + i];
}
}
BCPHeader h = new BCPHeader();
h.Frame_Head = 0x7e;
h.Protocal_Num = 0x00;
h.Version_Num = 0x00;
h.Target_Addr = targetAddr;
h.Source_Addr = srcAddr;
h.Port_Num = 0x00;
h.Control_Code = 0x11;
h.StartReg_Addr_L = (byte)((this.currentFrameNum + 1) & 0x00ff);
h.StartReg_Addr_H = (byte)(((this.currentFrameNum + 1) & 0xff00) >> 8);
this.currentFrame.enterData(h, rawData); //将数据按照BCP协议写入一帧
currentFrameNum++; //当前帧数加1
return(true);
}
public BCP_FrameHandler(BCPHeader head, byte[] data) //数据长度自动计算
{
CRC16 crc6_modbus = new CRC16();
if (data == null) //不携带数据
{
this.bcp_ProcessedFrame = new byte[14];
this.bcp_ProcessedFrame[0] = head.Frame_Head;
this.bcp_ProcessedFrame[1] = head.Protocal_Num;
this.bcp_ProcessedFrame[2] = head.Version_Num;
this.bcp_ProcessedFrame[3] = head.Target_Addr;
this.bcp_ProcessedFrame[4] = head.Source_Addr;
this.bcp_ProcessedFrame[5] = head.Port_Num;
this.bcp_ProcessedFrame[6] = head.Control_Code;
this.bcp_ProcessedFrame[7] = 0x00; //保留
this.bcp_ProcessedFrame[8] = head.StartReg_Addr_L;
this.bcp_ProcessedFrame[9] = head.StartReg_Addr_H;
this.bcp_ProcessedFrame[10] = 0x00; //数据长度为0
this.bcp_ProcessedFrame[11] = 0x00;
byte[] arrayForCRC = new byte[this.bcp_ProcessedFrame.Length - 2]; //不包括 CRC_L，CRC_H
for (int i = 0; i < arrayForCRC.Length; i++)
{
arrayForCRC[i] = this.bcp_ProcessedFrame[i];
}
crc6_modbus.CRC16_modbus(arrayForCRC, arrayForCRC.Length); //计算出CRC校验码
this.bcp_ProcessedFrame[12] = crc6_modbus.getCRC16_L();
this.bcp_ProcessedFrame[13] = crc6_modbus.getCRC16_H();
}
else
{
this.bcp_ProcessedFrame = new byte[14 + data.Length];
this.bcp_ProcessedFrame[0] = head.Frame_Head;
this.bcp_ProcessedFrame[1] = head.Protocal_Num;
this.bcp_ProcessedFrame[2] = head.Version_Num;
this.bcp_ProcessedFrame[3] = head.Target_Addr;
this.bcp_ProcessedFrame[4] = head.Source_Addr;
this.bcp_ProcessedFrame[5] = head.Port_Num;
this.bcp_ProcessedFrame[6] = head.Control_Code;
this.bcp_ProcessedFrame[7] = 0x00; //保留
this.bcp_ProcessedFrame[8] = head.StartReg_Addr_L;
this.bcp_ProcessedFrame[9] = head.StartReg_Addr_H;
int data_length = data.Length;
this.bcp_ProcessedFrame[10] = (byte)(data_length); //数据长度L
this.bcp_ProcessedFrame[11] = (byte)(data_length >> 8); //数据长度H
for (int i = 0; i < data.Length; i++) //载入数据
{
this.bcp_ProcessedFrame[12 + i] = data[i];
}
byte[] arrayForCRC = new byte[this.bcp_ProcessedFrame.Length - 2]; //不包括 CRC_L，CRC_H
for (int i = 0; i < arrayForCRC.Length; i++)
{
arrayForCRC[i] = this.bcp_ProcessedFrame[i];
}
crc6_modbus.CRC16_modbus(arrayForCRC, arrayForCRC.Length); //计算出CRC校验码
this.bcp_ProcessedFrame[this.bcp_ProcessedFrame.Length - 2] = crc6_modbus.getCRC16_L();
this.bcp_ProcessedFrame[this.bcp_ProcessedFrame.Length - 1] = crc6_modbus.getCRC16_H();
}
}
