From e71c57108e6dd407c2c6f0361f68150f2ff9aed5 Mon Sep 17 00:00:00 2001
From: wxr <464027401@qq.com>
Date: 星期三, 15 十二月 2021 13:41:16 +0800
Subject: [PATCH] 版本备份

---
 HDL_ON/DAL/DriverLayer/CRC.cs |   84 ++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 84 insertions(+), 0 deletions(-)

diff --git a/HDL_ON/DAL/DriverLayer/CRC.cs b/HDL_ON/DAL/DriverLayer/CRC.cs
new file mode 100644
index 0000000..242ad6f
--- /dev/null
+++ b/HDL_ON/DAL/DriverLayer/CRC.cs
@@ -0,0 +1,84 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace HDL_ON.DriverLayer
+{
+    public class CRC
+    {
+        #region crctab
+        private static ushort[] crctab = new ushort[256]
+        {  
+            0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
+		    0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
+		    0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
+		    0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
+		    0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
+		    0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
+		    0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
+		    0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
+		    0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
+		    0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
+		    0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
+		    0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
+		    0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
+		    0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
+		    0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
+		    0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
+		    0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
+		    0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
+		    0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
+		    0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
+		    0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
+		    0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
+		    0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
+		    0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
+		    0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
+		    0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
+		    0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
+		    0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
+		    0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
+		    0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
+		    0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
+		    0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
+        };
+		#endregion
+
+		/// <summary>
+		/// CRC鏍¢獙鍏紡
+		/// </summary>
+		/// <param name="crc">CRC</param>
+		/// <param name="cp">鍙戦�佺殑鏁版嵁搴忓垪</param>
+		/// <returns>鏂癈RC</returns>
+		private static void xcrc(ref byte height,ref byte low,byte cp)
+        {
+            ushort t2 = 0, t3 = 0, t4 = 0, t5 = 0, t6 = 0;
+			t2 =height;
+			t3 = cp;
+			t4 = (ushort)(low * 256);
+            t5 = (ushort)(t2 ^ t3);
+            t6 = (ushort)(crctab[t5] ^ t4);
+			height = (byte)(t6 / 256);
+			low = (byte)(t6 % 256);
+        }
+
+		/// <summary>
+		/// 娣诲姞CRC鏍¢獙瀛�
+		/// </summary>
+		/// <param name="bufin">淇℃伅涓�</param>
+		/// <param name="n">涓嶅寘鎷牎楠屽瓧鐨勪覆鎬婚暱搴�</param>
+		public static void ConCRC(ref byte[] bufin, byte start, int n)
+        {
+          
+			byte height = 0;
+			byte low = 0;
+            byte i;
+            for (i = start; i < n; i++)
+            {
+				xcrc(ref height,ref low, bufin[i]);
+            }
+			bufin [i] = height;
+			bufin[i + 1] = low;
+        }
+    }
+}
\ No newline at end of file

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