byte[] StructureToByteArray_ack_msg(ack_msg obj)
{
int len = Marshal.SizeOf(obj);
byte[] arr = new byte[len];
IntPtr ptr = Marshal.AllocHGlobal(len);
Marshal.StructureToPtr(obj, ptr, true);
Marshal.Copy(ptr, arr, 0, len);
Marshal.FreeHGlobal(ptr);
return(arr);
}
byte[] CRC_msg_ack_msg(ack_msg msg, bool bad)
{
byte data_s;
data_s = 3;
int len;
ushort crc;
////////////////////////////////////
//CRC
len = 3 + data_s;
crc = 0xFFFF;
buffer_out = StructureToByteArray_ack_msg(msg);
for (int pos = 0; pos < len; pos++)
{
crc ^= buffer_out[pos]; // XOR byte into least sig. byte of crc
for (int i = 8; i != 0; i--)
{ // Loop over each bit
if ((crc & 0x0001) != 0)
{ // If the LSB is set
crc >>= 1; // Shift right and XOR 0xA001
crc ^= 0xA001;
}
else // Else LSB is not set checkBoxBadCRC1
{
crc >>= 1; // Just shift right
}
}
}
buffer_out[len + 0] = (byte)(crc & 0xFF);
buffer_out[len + 1] = (byte)((crc >> 8) & 0xFF);
if (bad)
{
buffer_out[len + 0] = 0;
buffer_out[len + 1] = 0;
}
len = len + 2;
/////////// end of CRC ///////////////
return(buffer_out);
}
