DWZB_Agv_Agreement/DWZB_Agv_Agreement/Agv_Agreement/DataHandleHelper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DWZB_Agv_Agreement.Agv_Agreement
{
    public static class DataHandleHelper
    {
        public static bool Verify_PackageHeadCRC(byte[] btArr)
        {
            try
            {
                byte[] pckHead = new byte[9];
                Array.Copy(btArr, pckHead, pckHead.Length);
                byte[] pckHeadCRC = new byte[8];
                Array.Copy(pckHead, pckHeadCRC, pckHeadCRC.Length);
                if (Get_CustomCRC(pckHeadCRC) == pckHead[^1])
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch
            {
                return false;
            }
        }

        public static bool Verify_DataMsgCRC(byte[] btArr)
        {
            try
            {
                byte[] pckHead = new byte[9];
                Array.Copy(btArr, pckHead, pckHead.Length);
                byte[] dataLenBt = new byte[4];
                Array.Copy(btArr, 2, dataLenBt, 0, dataLenBt.Length);
                Array.Reverse(dataLenBt);
                int dataLen = BitConverter.ToInt32(dataLenBt, 0);
                byte[] dataBtArr = new byte[dataLen];
                Array.Copy(btArr, 9, dataBtArr, 0, dataLen);
                if (Get_CustomCRC(dataBtArr) == pckHead[^2])
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch
            {
                return false;
            }
        }

        public static byte Get_CustomCRC(byte[] dataBtArr)
        {
            int data_Xor = 0;
            for (int i = 0; i < dataBtArr.Length; i++)
            {
                data_Xor ^= dataBtArr[i];
            }
            return Convert.ToByte(data_Xor);
        }

        public static byte[] ReverseBtyArr(byte[] btArr)
        {
            Array.Reverse(btArr);
            return btArr;
        }

    }
}