燒寫Flash小工具C#上位機源碼

ID:162777 · 發表于 2018-7-12 11:56

燒寫Flash小工具資料包：

燒寫Flash小工具上位機運行界面：

全部資料51hei下載地址：

燒寫Flash小工具.rar (5.09 MB, 下載次數: 116)

C#源碼：

/*
* MODBUS協議
*
* 介紹：
* 此modbus上位機協議類具有較強的通用性
* 本協議類最主要的思想是把所有向下位機發送的指令先存放在緩沖區中（命名為管道）
* 再將管道中的指令逐個發送出去。
* 管道遵守FIFO的模式。管道中所存放指令的個數在全局變量中定義。
* 管道內主要分為兩部分：1，定時循環發送指令。2，一次性發送指令。
* 定時循環發送指令:周期性間隔時間發送指令，一般針對“輸入寄存器”或“輸入線圈”等實時更新的變量。
* 這兩部分的長度由用戶所添加指令個數決定（所以自由性強）。
* 指令的最大發送次數，及管道中最大存放指令的個數在常量定義中可進行設定。
*
* 使用說明：
* 1，首先對所定義的寄存器或線圈進行分組定義，并定義首地址。
* 2，在MBDataTable數組中添加寄存器或線圈所對應的地址。注意寄存器：ob = new UInt16()。線圈：ob = new byte()。
* 3，對所定義的地址用屬性進行定義以方便在類外進行訪問及了解所對應地址的含義。
* 4，GetAddressValueLength函數中對使用說明的"第一步"分組的元素個數進行指定。
* 5，在主程序中調用MBConfig進行協議初始化（初始化內容參考函數）。
* 6，在串口中斷函數中調用MBDataReceive()。
* 7，定時器調用MBRefresh()。（10ms以下）
* 指令發送間隔時間等于實時器乘以10。例：定時器5ms調用一次指令發送間隔為50ms。
* 8，在主程序初始化中添加固定實時發送的指令操作用MBAddRepeatCmd函數。
* 9，在主程序運行過程中根據需要添加單個的指令操作(非固定重復發送的指令)用MBAddCmd函數。
*
*
* 作者：王宏強
* 時間：2012.7.2
*
*
*
* 修正2012.1.1 修正只有一次性指令，發送最大次數不正常問題
*
*
*/
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;
namespace 上位機
{
public class Modbus : Form
{
#region 所用結構體
/// <summary>
/// 地址對應表元素單元
/// </summary>
public struct OPTable{
public volatile int addr;
public volatile byte type;
public volatile object ob;
};
/// <summary>
/// 當前的指令
/// </summary>
public struct MBCmd
{
public volatile int addr; //指令首地址
public volatile int stat; //功能碼
public volatile int len; //所操作的寄存器或線圈的個數
public volatile int res; //返回碼的狀態， 0：無返回，1：正確返回
};
/// <summary>
/// 當前操作的指令管道
/// </summary>
public struct MBSci
{
public volatile MBCmd[] cmd; //指令結構體
public volatile int index; //當前索引
public volatile int count; //當前功能碼執行的次數
public volatile int maxRepeatCount; //最大發送次數
public volatile int rtCount; //實時讀取的指令各數(無限間隔時間讀取)
};
#endregion
#region 常量定義
public const byte MB_READ_COILS = 0x01; //讀線圈寄存器
public const byte MB_READ_DISCRETE = 0x02; //讀離散輸入寄存器
public const byte MB_READ_HOLD_REG = 0x03; //讀保持寄存器
public const byte MB_READ_INPUT_REG = 0x04; //讀輸入寄存器
public const byte MB_WRITE_SINGLE_COIL = 0x05; //寫單個線圈
public const byte MB_WRITE_SINGLE_REG = 0x06; //寫單寄存器
public const byte MB_WRITE_MULTIPLE_COILS = 0x0f; //寫多線圈
public const byte MB_WRITE_MULTIPLE_REGS = 0x10; //寫多寄存器
private const int MB_MAX_LENGTH = 1200; //最大數據長度
private const int MB_SCI_MAX_COUNT = 15; //指令管道最大存放的指令各數
private const int MB_MAX_REPEAT_COUNT = 3; //指令最多發送次數
#endregion
#region 全局變量
private static volatile bool sciLock = false; //調度器鎖 true:加鎖 false:解鎖
private static volatile byte[] buff = new byte[MB_MAX_LENGTH]; //接收緩沖器
private static volatile int buffLen = 0;
private static volatile byte[] rBuff = null; //正確接收緩沖器
private static volatile byte[] wBuff = null; //正確發送緩沖器
public static MBSci gMBSci = new MBSci() { cmd = new MBCmd[MB_SCI_MAX_COUNT], index = 0, maxRepeatCount = MB_MAX_REPEAT_COUNT, rtCount = 0, count = 0 };
private static SerialPort comm = null;
private static int mbRefreshTime = 0;
#endregion
#region MODBUS 地址對應表
//modbus寄存器和線圈分組首地址定義
public const int D_DIO = 0x0000;
/// <summary>
/// 變量所對應的地址在此位置
/// </summary>
public static volatile OPTable[] MBDataTable = new OPTable[1028];
public static OPTable[] gDio { get { return MBDataTable; } set { MBDataTable = value; } }
public static UInt16 gNode = 100;
public static int gBaud = 38400;
/// <summary>
/// 獲取寄存器或線圈分組后的成員各數
/// </summary>
/// <param name="addr">首地址</param>
/// <returns>成員各數</returns>
private static int GetAddressValueLength(int addr)
{
int res = 0;
switch (addr)
{
case D_DIO: res = 514; break;
default: break;
}
return res;
}
/// <summary>
/// 獲取地址所對應的數據
/// </summary>
/// <param name="addr">地址</param>
/// <param name="type">類型</param>
/// <returns>獲取到的數據</returns>
private static object GetAddressValue(int addr, byte type)
{
switch (type) //功能碼類型判斷
{
case MB_READ_COILS:
case MB_READ_DISCRETE:
case MB_READ_HOLD_REG:
case MB_READ_INPUT_REG: break;
case MB_WRITE_SINGLE_COIL:
case MB_WRITE_MULTIPLE_COILS: type = MB_READ_DISCRETE; break;
case MB_WRITE_SINGLE_REG:
case MB_WRITE_MULTIPLE_REGS: type = MB_READ_HOLD_REG; break;
default: return null;
}
for (int i = 0; i < MBDataTable.Length; i++)
{
if (MBDataTable[i].addr == addr)
{
if (MBDataTable[i].type == type)
{
return MBDataTable[i].ob;
}
}
}
return null;
}
/// <summary>
/// 設置地址所對應的數據
/// </summary>
/// <param name="addr">地址</param>
/// <param name="type">類型</param>
/// <param name="data">數據</param>
/// <returns>是否成功</returns>
private static object SetAddressValue(int addr, byte type, object data)
{
for (int i = 0; i < MBDataTable.Length; i++)
{
if (MBDataTable[i].addr == addr)
{
if (MBDataTable[i].type == type)
{
MBDataTable[i].ob = data;
return true;
}
}
}
return null;
}
/// <summary>
/// 獲取一連串數據
/// </summary>
/// <param name="addr">首地址</param>
/// <param name="type">功能碼</param>
/// <param name="len">長度</param>
/// <returns>轉換后的字節數組</returns>
private static byte[] GetAddressValues(int addr, byte type, int len)
{
byte[] arr = null;
object obj;
byte temp;
int temp2;
switch (type)
{
case MB_WRITE_MULTIPLE_COILS:
arr = new byte[(len % 8 == 0) ? (len / 8) : (len / 8 + 1)];
for (int i = 0; i < arr.Length; i++)
{
for (int j = 0; j < 8; j++)
{ //獲取地址所對應的數據并判斷所讀數據是否被指定，有沒被指定的數據直接返回null
obj = GetAddressValue(addr + i * 8 + j, MB_READ_COILS);
if (obj == null)
return null;
else
temp = Convert.ToByte(obj);
arr[i] |= (byte)((temp == 0? 0 : 1) << j);
}
}
break;
case MB_WRITE_MULTIPLE_REGS:
arr = new byte[len * 2];
for (int i = 0; i < len; i++)
{
obj = GetAddressValue(addr + i, MB_READ_HOLD_REG);
if (obj == null)
return null;
else
temp2 = Convert.ToInt32(obj);
arr[i * 2] = (byte)(temp2 >> 8);
arr[i * 2 + 1] = (byte)(temp2 & 0xFF);
}
break;
default: break;
}
return arr;
}
#endregion
#region 校驗
private static readonly byte[] aucCRCHi = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40
};
private static readonly byte[] aucCRCLo = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7,
0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E,
0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9,
0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC,
0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D,
0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38,
0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF,
0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1,
0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4,
0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB,
0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA,
0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97,
0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E,
0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89,
0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83,
0x41, 0x81, 0x80, 0x40
};
/// <summary>
/// CRC效驗
/// </summary>
/// <param name="pucFrame">效驗數據</param>
/// <param name="usLen">數據長度</param>
/// <returns>效驗結果</returns>
public static int Crc16(byte[] pucFrame, int usLen)
{
int i = 0;
byte ucCRCHi = 0xFF;
byte ucCRCLo = 0xFF;
UInt16 iIndex = 0x0000;
while (usLen-- > 0)
{
iIndex = (UInt16)(ucCRCLo ^ pucFrame[i++]);
ucCRCLo = (byte)(ucCRCHi ^ aucCRCHi[iIndex]);
ucCRCHi = aucCRCLo[iIndex];
}
return (ucCRCHi << 8 | ucCRCLo);
}
#endregion
#region 發送指命操作
/// <summary>
/// 首部分數據 node:節點
/// </summary>
/// <param name="addr">寄存器地址</param>
/// <param name="len">數據長度，或單個數據</param>
/// <param name="stat"></param>
/// <returns></returns>
private static byte[] SendTrainHead(int node, int addr, int len, byte stat)
{
byte[] head = new byte[6];
head[0] = Convert.ToByte(node);
head[1] = stat;
head[2] = (byte)(addr >> 8);
head[3] = (byte)(addr & 0xFF);
head[4] = (byte)(len >> 8);
head[5] = (byte)(len & 0xFF);
return head;
}
/// <summary>
/// 計算數據長度并在0x0f,0x10功能下加載字節數
/// </summary>
/// <param name="arr"></param>
/// <param name="len"></param>
/// <param name="stat"></param>
/// <returns></returns>
private static byte[] SendTrainBytes(byte[] arr, ref int len, byte stat)
{
byte[] res;
switch (stat)
{
default: len = 0; break;
case MB_READ_COILS:
case MB_READ_DISCRETE:
case MB_READ_HOLD_REG:
case MB_READ_INPUT_REG:
case MB_WRITE_SINGLE_COIL:
case MB_WRITE_SINGLE_REG:
len = 0;
break;
case MB_WRITE_MULTIPLE_COILS:
len = (len % 8 == 0) ? (len / 8) : (len / 8 + 1);
res = new byte[arr.Length + 1];
arr.CopyTo(res, 0);
res[arr.Length] = (byte)(len);
arr = res;
break;
case MB_WRITE_MULTIPLE_REGS:
len *= 2;
res = new byte[arr.Length + 1];
arr.CopyTo(res, 0);
res[arr.Length] = (byte)len; //把字節寫入數據最后位置
arr = res;
break;
}
return arr;
}
/// <summary>
/// 主控方式發送指令模板
/// </summary>
/// <param name="node">節點</param>
/// <param name="data">數據</param>
/// <param name="addr">地址</param>
/// <param name="con">變量各數</param>
/// <param name="stat">功能碼</param>
/// <returns></returns>
private static byte[] SendTrainCyclostyle(int node, byte[] data, int addr, int con, byte stat)
{
int crcVal = 0;
byte[] headData = SendTrainHead(node, addr, con, stat); //寫首部分數據
byte[] headDataLen = SendTrainBytes(headData, ref con, stat); //計算數據的長度，有字節則寫入。
byte[] res = new byte[headDataLen.Length + con + 2];
headDataLen.CopyTo(res, 0);
if ((stat == MB_WRITE_MULTIPLE_REGS) || (stat == MB_WRITE_MULTIPLE_COILS))
Array.Copy(data, 0, res, headDataLen.Length, con); //把數據復制到數據中
crcVal = Crc16(res, res.Length - 2);
res[res.Length - 2] = (byte)(crcVal & 0xFF);
res[res.Length - 1] = (byte)(crcVal >> 8);
return res;
}
/// <summary>
/// 封裝發送數據幀
/// </summary>
/// <param name="node">從機地址</param>
/// <param name="cmd">指令信息</param>
/// <returns></returns>
private static byte[] SendPduPack(int node, MBCmd cmd)
{
byte[] res = null;
switch (cmd.stat)
{
case MB_READ_COILS:
case MB_READ_DISCRETE:
case MB_READ_HOLD_REG:
case MB_READ_INPUT_REG:
case MB_WRITE_SINGLE_COIL:
case MB_WRITE_SINGLE_REG:
res = SendTrainCyclostyle(node, null, cmd.addr, cmd.len, (byte)cmd.stat); break;
case MB_WRITE_MULTIPLE_COILS:
case MB_WRITE_MULTIPLE_REGS:
byte[] data = GetAddressValues(cmd.addr, (byte)cmd.stat, cmd.len);
res = SendTrainCyclostyle(node, data, cmd.addr, cmd.len, (byte)cmd.stat); break;
}
return res;
}
#endregion
#region 回傳數據操作
/// <summary>
/// 存儲回傳的線圈
/// </summary>
/// <param name="data">回傳的數組</param>
/// <param name="addr">首地址</param>
/// <returns>存儲是否正確</returns>
private static bool ReadDiscrete(byte[] data, int addr)
{
bool res = true;
int len = data[2];
if (len != (data.Length - 5)) //數據長度不正確直接退出
return false;
for (int i = 0; i < len; i++)
{
for (int j = 0; j < 8; j++)
{
if (SetAddressValue(addr + i * 8 + j, data[1], data[i + 3] & (0x01 << j)) == null)
{
return false;
}
}
}
return res;
}
/// <summary>
/// 讀回傳的寄存器
/// </summary>
/// <param name="data">回傳的數組</param>
/// <param name="addr">首地址</param>
/// <returns>存儲是否正確</returns>
private static bool ReadReg(byte[] data, int addr)
{
bool res = true;
int len = data[2];
if (len != (data.Length - 5)) //數據長度不正確直接退出
return false;
for (int i = 0; i < len; i += 2)
{
if (SetAddressValue(addr + i / 2, data[1], (data[i + 3] << 8) | data[i + 4]) == null)
{
res = false;
break;
}
}
return res;
}
/// <summary>
/// 回傳的數據處理
/// </summary>
/// <param name="buff">回傳的整幀數據</param>
/// <param name="addr">當前所操作的首地址</param>
/// <returns></returns>
private static bool ReceiveDataProcess(byte[] buff, int addr)
{
if (buff == null)
return false;
if (buff.Length < 5) //回傳的數據地址+功能碼+長度+2效驗 = 5字節
return false;
bool res = true;
switch (buff[1])
{
case MB_READ_COILS: ReadDiscrete(buff, addr); break;
case MB_READ_DISCRETE: ReadDiscrete(buff, addr); break;
case MB_READ_HOLD_REG: ReadReg(buff, addr); break;
case MB_READ_INPUT_REG: ReadReg(buff, addr); break;
case MB_WRITE_SINGLE_COIL:
case MB_WRITE_SINGLE_REG:
case MB_WRITE_MULTIPLE_COILS:
case MB_WRITE_MULTIPLE_REGS: break;
default: res = false; break;
}
return res;
}
#endregion
#region 收發調度
/// <summary>
/// 添加重復操作指令
/// </summary>
/// <param name="sci">待發送的指命管道</param>
/// <param name="addr">所添加指令的首地址</param>
/// <param name="len">所添加指令的寄存器或線圈個數</param>
/// <param name="stat">所添加指令的功能碼</param>
private static void SciAddRepeatCmd(ref MBSci sci, int addr, int len, int stat)
{
if (sci.rtCount >= MB_SCI_MAX_COUNT - 1) //超出指令管道最大長度直接退出
return;
if (len == 0) //地址的數據長度為空直接退出
return;
sci.cmd[sci.rtCount].addr = addr;
sci.cmd[sci.rtCount].len = len;
sci.cmd[sci.rtCount].stat = stat;
sci.cmd[sci.rtCount].res = 0;
sci.rtCount++;
}
/// <summary>
/// 添加一次性操作指令
/// </summary>
/// <param name="sci">待發送的指命管道</param>
/// <param name="addr">所添加指令的首地址</param>
/// <param name="len">所添加指令的寄存器或線圈個數</param>
/// <param name="stat">所添加指令的功能碼</param>
private static void SciAddCmd(ref MBSci sci, int addr, int len, int stat)
{
if (len == 0) //地址的數據長度為空直接退出
return;
for (int i = sci.rtCount; i < MB_SCI_MAX_COUNT; i++)
{
if (sci.cmd[i].addr == -1) //把指令載入到空的管道指令上
{
sci.cmd[i].addr = addr;
sci.cmd[i].len = len;
sci.cmd[i].stat = stat;
sci.cmd[i].res = 0;
break;
}
}
}
/// <summary>
/// 清空重復讀取指令集
/// </summary>
/// <param name="sci">待發送的指命管道</param>
private static void SciClearRepeatCmd(ref MBSci sci)
{
sci.rtCount = 0;
}
/// <summary>
/// 清空一次性讀取指令集
/// </summary>
/// <param name="sci">待發送的指命管道</param>
private static void SciClearCmd(ref MBSci sci)
{
for (int i = sci.rtCount; i < MB_SCI_MAX_COUNT; i++)
{
sci.cmd[i].addr = -1;
sci.cmd[i].len = 0;
sci.cmd[i].res = 0;
}
}
/// <summary>
/// 跳到下一個操作指令
/// </summary>
/// <param name="sci">待發送的指命管道</param>
private static void SciJumbNext(ref MBSci sci)
{
if (sci.index >= sci.rtCount) //非實時讀取地址會被清除
{
sci.cmd[sci.index].addr = -1;
sci.cmd[sci.index].len = 0;
sci.cmd[sci.index].stat = 0;
}
do{
sci.index++;
if (sci.index >= MB_SCI_MAX_COUNT) //超出指令最大范圍
{
sci.index = 0;
if (sci.rtCount == 0) //如果固定實時讀取為空直接跳出
break;
}
} while (sci.cmd[sci.index].addr == -1);
sci.cmd[sci.index].res = 0; //本次返回狀態清零
}
/// <summary>
/// 發送指令調度鎖定
/// </summary>
public static void SciSchedulingLock()
{
sciLock = true;
}
/// <summary>
/// 發送指令調度解鎖
/// </summary>
public static void SciSchedulingUnlock()
{
sciLock = false;
}
/// <summary>
/// 待發送的指令管道調度
/// </summary>
/// <param name="sci">待發送的指命管道</param>
/// <param name="rBuf">收到正確的回傳數據</param>
/// <param name="wBuf">準備發送的指令數據</param>
private static void SciScheduling(ref MBSci sci, ref byte[] rBuf, ref byte[] wBuf)
{
if (sciLock) //如果被加鎖直接退出
return;
if (sci.cmd[0].addr == -1)
return;
if ((sci.cmd[sci.index].res != 0) || (sci.count >= sci.maxRepeatCount))
{
sci.count = 0; //發送次數清零
if (sci.cmd[sci.index].res != 0) //如果收到了正常返回
{
ReceiveDataProcess(rBuf, sci.cmd[sci.index].addr); //保存數據
rBuf = null; //清空當前接收緩沖區的內容，以防下次重復讀取
}
else
{
//參數操作失敗
}
SciJumbNext(ref sci);
}
wBuf = SendPduPack((int)gNode, sci.cmd[sci.index]); //發送指令操作
sci.count++; //發送次數加1
}
/// <summary>
/// 快速刷新處理接收到的數據建議:10ms以下
/// </summary>
/// <returns>所正確回傳數據的功能碼, null:回傳不正確</returns>
private static int MBQuickRefresh()
{
int res = -1;
if (rBuff != null)
{
SciSchedulingLock();
if (ReceiveDataProcess(rBuff, gMBSci.cmd[gMBSci.index].addr) == true)
{
gMBSci.cmd[gMBSci.index].res = 1; //標記所接收到的數據正確
res = gMBSci.cmd[gMBSci.index].stat;
}
rBuff = null;
SciSchedulingUnlock();
}
return res;
}
/// <summary>
/// 調度間隔時間刷新建議:50ms以上
/// </summary>
/// <returns>封裝好的協議幀</returns>
private static void MBSchedRefresh()
{
SciScheduling(ref gMBSci, ref rBuff, ref wBuff);
if (wBuff != null)
comm.Write(wBuff, 0, wBuff.Length);
}
#endregion
#region 接口函數
/// <summary>
/// 清空存放一次性的指令空間
/// </summary>
public static void MBClearCmd()
{
SciClearCmd(ref gMBSci);
}
/// <summary>
/// 添加固定刷新（重復）操作指令
/// </summary>
/// <param name="addr">地址</param>
/// <param name="stat">功能碼</param>
public static void MBAddRepeatCmd(int addr, byte stat)
{
for (int i = 0; i < GetAddressValueLength(addr); i++ )
if (GetAddressValue(addr, stat) == null) //如果所添加的指令沒有在MODBUS對應表中定義直接退出
return;
SciAddRepeatCmd(ref gMBSci, addr, GetAddressValueLength(addr), stat);
}
/// <summary>
/// 添加一次性操作指令
/// </summary>
/// <param name="addr"></param>
/// <param name="stat"></param>
public static void MBAddCmd(int addr, byte stat)
{
for (int i = 0; i < GetAddressValueLength(addr); i++)
if (GetAddressValue(addr, stat) == null) //如果所添加的指令沒有在MODBUS對應表中定義直接退出
return;
SciAddCmd(ref gMBSci, addr, GetAddressValueLength(addr), stat);
}
/// <summary>
/// 串口參數配置
/// </summary>
/// <param name="commx">所用到的串口</param>
/// <param name="node"></param>
/// <param name="baud"></param>
public static void MBConfig(SerialPort commx, UInt16 node, int baud)
{
gBaud = baud;
gNode = node;
comm = commx;
SciClearRepeatCmd(ref gMBSci);
SciClearCmd(ref gMBSci);
}
/// <summary>
/// 讀取串口中接收到的數據
/// </summary>
/// <param name="comm">所用到的串口</param>
public static void MBDataReceive()
{
if (comm == null) //如果串口沒有被初始化直接退出
return;
SciSchedulingLock();
System.Threading.Thread.Sleep(10); //等待緩沖器滿
if (!comm.IsOpen)
return;
buffLen = comm.BytesToRead; //獲取緩沖區字節長度
if (buffLen > MB_MAX_LENGTH) //如果長度超出范圍直接退出
{
SciSchedulingUnlock();
return;
}
comm.Read(buff, 0, buffLen); //讀取數據
if (gMBSci.cmd[gMBSci.index].stat == buff[1])
{
if (Crc16(buff, buffLen) == 0)
{
rBuff = new byte[buffLen];
Array.Copy(buff, rBuff, buffLen);
}
}
SciSchedulingUnlock();
}
/// <summary>
/// MODBUS的實時刷新任務，在定時器在實時調用此函數
/// 指令發送間隔時間等于實時器乘以10。例：定時器5ms調用一次指令發送間隔為50ms。
/// </summary>
/// <returns>返回當前功能讀取指令回傳的功能碼</returns>
public static int MBRefresh()
{
if (sciLock) //如果被加鎖直接退出
return 0;
mbRefreshTime++;
if (mbRefreshTime > 10)
{
mbRefreshTime = 0;
MBSchedRefresh();
}
return MBQuickRefresh();
}
#endregion
}
}