经典的串口调试助手源代码(一)

经典的串口调试助手源代码(一)
2011年04月26日
　　经典的串口调试助手源代码（一）VB在单片机中的应用
　　Dim OutputAscii As Boolean
　　Dim InputString As String
　　Dim OutputString As String
　　'=====================================================================================
　　'                   变量定义
　　'=====================================================================================
　　Option Explicit                                                                     ' 强制显式声明
　　Dim ComSwitch As Boolean                                                            ' 串口开关状态判断
　　Dim FileData As String                                                              ' 要发送的文件暂存
　　Dim SendCount As Long                                                               ' 发送数据字节计数器
　　Dim ReceiveCount As Long                                                            ' 接收数据字节计数器
　　Dim InputSignal As String                                                           ' 接收缓冲暂存
　　Dim OutputSignal As String                                                          ' 发送数据暂存
　　Dim DisplaySwitch As Boolean                                                        ' 显示开关
　　Dim ModeSend As Boolean                                                             ' 发送方式判断
　　Dim Savetime As Single                                                              ' 时间数据暂存 延时用
　　Dim SaveTextPath As String                                                          ' 保存文本路径
　　' 网页超链接申明
　　Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
　　Private Sub CloseCom()  '关闭串口
　　On Error GoTo Err
　　If MSComm.PortOpen = True Then MSComm.PortOpen = False                          ' 先判断串口是否打开，如果打开则先关闭
　　txtstatus.Text = "STATUS：COM Port Cloced"                                      ' 串口状态显示
　　mnuconnect.Caption = "断开串口"
　　cmdswitch.Caption = "打开串口"
　　'ImgSwitch.Picture = LoadPicture("f:\我的VB\串口调试软件\图片\guan.jpg")         ' 显示串口已经关闭的图标
　　ImgSwitchoff.Visible = True
　　ImgSwitchon.Visible = False
　　Err:
　　End Sub
　　Private Sub UpdateStatus()
　　If MSComm.PortOpen Then
　　StatusBar1.Panels(1).Text = "Connected"
　　mnuautosend.Caption = "自动发送"
　　mnuconnect.Caption = "断开串口"
　　Else
　　StatusBar1.Panels(1).Text = "断开串口"
　　mnuautosend.Caption = "disautosend"
　　mnuconnect.Caption = "打开串口"
　　End If
　　StatusBar1.Panels(2).Text = "COM" & MSComm.CommPort
　　StatusBar1.Panels(3).Text = MSComm.Settings
　　If (OutputAscii) Then
　　StatusBar1.Panels(4) = "ASCII"
　　Else
　　StatusBar1.Panels(4) = "HEX"
　　End If
　　'
　　On Error GoTo Err
　　If ChkAutoSend.Value = 1 Then                                                   ' 如果有效则，自动发送
　　If MSComm.PortOpen = True Then                                              ' 串口状态判断
　　mnuautosend.Caption = "Dis&autosend"
　　TmrAutoSend.Interval = Val(TxtAutoSendTime)                             ' 设置自动发送时间
　　TmrAutoSend.Enabled = True                                              ' 打开自动发送定时器
　　Else
　　mnuautosend.Caption = "autosend"
　　ChkAutoSend.Value = 0                                                   ' 串口没有打开去掉自动发送
　　MsgBox "串口没有打开，请打开串口", 48, "串口调试助手"                   ' 如果串口没有被打开，提示打开串口
　　End If
　　ElseIf ChkAutoSend.Value = 0 Then                                               ' 如果无效，不发送
　　mnuautosend.Caption = "autosend"
　　TmrAutoSend.Enabled = False                                             ' 关闭自动发送定时器
　　End If
　　Err:
　　End Sub
　　Private Sub CmdSendFile_Click() '发送文件
　　On Error GoTo Err
　　If MSComm.PortOpen = True Then                                                  ' 如果串口打开了，则可以发送数据
　　If FileData = "" Then                                                       ' 判断发送数据是否为空
　　MsgBox "发送的文件为空", 16, "串口调试助手"                             ' 发送数据为空则提示
　　Else
　　If ChkHexReceive.Value = 1 Then                                         ' 如果按十六进制接收时，按二进制发送，否则按文本发送
　　MSComm.InputMode = comInputModeBinary                               ' 二进制发送
　　Else
　　MSComm.InputMode = comInputModeText                                 ' 文本发送
　　End If
　　MSComm.Output = Trim(FileData)                                          ' 发送数据
　　ModeSend = True                                                         ' 设置文本发送方式
　　End If
　　Else
　　MsgBox "串口没有打开，请打开串口", 48, "串口调试助手"                       ' 如果串口没有被打开，提示打开串口
　　End If
　　Err:
　　End Sub
　　Private Sub Comm_initial(Port As Byte, BaudRate As String, ParityBit As String, DataBit As Integer, StopBit As Integer)
　　On Error GoTo ErrorTrap                  ' 错误则跳往错误处理
　　If MSComm.PortOpen = True Then MSComm.PortOpen = False                          ' 先判断串口是否打开，如果打开则先关闭
　　MSComm.CommPort = Port                                                          ' 设定端口
　　MSComm.Settings = BaudRate & "," & ParityBit & "," & DataBit & "," & StopBit    ' 设置波特率，无校验，8位数据位，1位停止位
　　MSComm.InBufferSize = 1024                                                      ' 设置接收缓冲区为1024字节
　　MSComm.OutBufferSize = 4096                                                     ' 设置发送缓冲区为4096字节
　　MSComm.InBufferCount = 0                                                        ' 清空输入缓冲区
　　MSComm.OutBufferCount = 0                                                       ' 清空输出缓冲区
　　MSComm.SThreshold = 1                                                           ' 发送缓冲区空触发发送事件
　　MSComm.RThreshold = 1                                                           ' 每X个字符到接收缓冲区引起触发接收事件
　　MSComm.OutBufferCount = 0                                                       ' 清空发送缓冲区
　　MSComm.InBufferCount = 0                                                        ' 滑空接收缓冲
　　MSComm.PortOpen = True                                                          ' 打开串口
　　If MSComm.PortOpen = True Then
　　txtstatus.Text = "STATUS：" & cbocom.Text & " OPEND，" & cbobaudrate.Text & "," & Left(cboparitybit.Text, 1) & "," & cbodatabit.Text & "," & cbostopbit.Text
　　Else
　　txtstatus.Text = "STATUS：COM Port Cloced"                                  ' 串口没打开时，提示串口关闭状态
　　End If
　　Exit Sub
　　ErrorTrap:                                                                          ' 错误处理
　　Select Case Err.Number
　　Case comPortAlreadyOpen                                                         ' 如果串口已经打开，则提示
　　MsgBox "没有发现此串口或被占用", 49, "串口调试助手"
　　CloseCom
　　Case Else
　　MsgBox "没有发现此串口或被占用", 49, "串口调试助手"
　　CloseCom
　　End Select
　　Err.Clear
　　End Sub
　　Private Sub Comm_reSet(Port As Byte, BaudRate As String, ParityBit As String, DataBit As Integer, StopBit As Integer)
　　On Error GoTo ErrorHint                                                         ' 错误则跳往错误处理
　　If MSComm.PortOpen = True Then MSComm.PortOpen = False                          ' 先判断串口是否打开，如果打开则先关闭
　　MSComm.CommPort = Port                                                          ' 设定端口
　　MSComm.Settings = BaudRate & "," & ParityBit & "," & DataBit & "," & StopBit    ' 设置波特率，无校验，8位数据位，1位停止位
　　MSComm.PortOpen = True                                                          ' 打开串口
　　If MSComm.PortOpen = True Then
　　cmdswitch.Caption = "关闭串口"
　　'ImgSwitch.Picture = LoadPicture("f:\我的VB\串口调试软件\图片\kai.jpg")      ' 显示串口已经打开的图标
　　ImgSwitchoff.Visible = False
　　mnuconnect.Caption = "disconnect"
　　ImgSwitchon.Visible = True
　　txtstatus.Text = "STATUS：" & cbocom.Text & " OPEND，" & cbobaudrate.Text & "," & Left(cboparitybit.Text, 1) & "," & cbodatabit.Text & "," & cbostopbit.Text
　　Else
　　cmdswitch.Caption = "打开串口"
　　'ImgSwitch.Picture = LoadPicture("f:\我的VB\串口调试软件\图片\guan.jpg")     ' 显示串口已经关闭的图标
　　ImgSwitchon.Visible = False
　　ImgSwitchoff.Visible = True
　　txtstatus.Text = "STATUS：COM Port Cloced"
　　End If
　　Exit Sub
　　ErrorHint:                                                                          ' 错误处理
　　Select Case Err.Number
　　Case comPortAlreadyOpen                                                         ' 如果串口已经打开，则提示
　　MsgBox "没有成功，请重试", vbExclamation, "串口调试助手"
　　CloseCom                                                                    ' 调用关闭串口函数
　　Case Else
　　MsgBox "没有成功，请重试", vbExclamation, "串口调试助手"
　　CloseCom                                                                    ' 调用关闭串口函数
　　End Select
　　Err.Clear                                                                       ' 清除 Err 对象的属性
　　End Sub
　　Private Sub Command1_Click()
　　End Sub
　　Private Sub cbobaudrate_Change()
　　Call Comm_reSet(Val(Mid(cbocom.Text, 4, 2)), cbobaudrate.Text, Left(cboparitybit.Text, 1), cbodatabit.Text, cbostopbit.Text)             '串口设置
　　End Sub
　　Private Sub cbocom_Change()
　　Call Comm_reSet(Val(Mid(cbocom.Text, 4, 2)), cbobaudrate.Text, Left(cboparitybit.Text, 1), cbodatabit.Text, cbostopbit.Text)             '串口设置
　　End Sub
　　Private Sub cbodatabit_Change()
　　Call Comm_reSet(Val(Mid(cbocom.Text, 4, 2)), cbobaudrate.Text, Left(cboparitybit.Text, 1), cbodatabit.Text, cbostopbit.Text)             '串口设置
　　End Sub
　　Private Sub cboparitybit_Change()
　　Call Comm_reSet(Val(Mid(cbocom.Text, 4, 2)), cbobaudrate.Text, Left(cboparitybit.Text, 1), cbodatabit.Text, cbostopbit.Text)             '串口设置
　　End Sub
　　Private Sub cbostopbit_Change()
　　Call Comm_reSet(Val(Mid(cbocom.Text, 4, 2)), cbobaudrate.Text, Left(cboparitybit.Text, 1), cbodatabit.Text, cbostopbit.Text)             '串口设置
　　End Sub
　　Private Sub chkautosend_Click()
　　On Error GoTo Err
　　If ChkAutoSend.Value = 1 Then                                                   ' 如果有效则，自动发送
　　If MSComm.PortOpen = True Then                                              ' 串口状态判断
　　mnuautosend.Caption = "取消自动发送"
　　TmrAutoSend.Interval = Val(TxtAutoSendTime)                             ' 设置自动发送时间
　　TmrAutoSend.Enabled = True                                              ' 打开自动发送定时器
　　Else
　　ChkAutoSend.Value = 0                                                   ' 串口没有打开去掉自动发送
　　MsgBox "串口没有打开，请打开串口", 48, "串口调试助手"                   ' 如果串口没有被打开，提示打开串口
　　End If
　　ElseIf ChkAutoSend.Value = 0 Then                                               ' 如果无效，不发送
　　mnuautosend.Caption = "自动发送数据"
　　TmrAutoSend.Enabled = False                                             ' 关闭自动发送定时器
　　End If
　　Err:
　　End Sub
　　Private Sub cmdamend_Click()
　　Dim spShell As Object                                                           ' 定义存放引用对象的变量
　　Dim spFolder As Object                                                          ' 定义存放引用对象的变量
　　Dim spFolderItem As Object                                                      ' 定义存放引用对象的变量
　　Dim spPath As String                                                            ' 定义存放的变量
　　On Error GoTo Err                                                               ' 错误处理，防止取消打开文件夹时报错
　　Const WINDOW_HANDLE = 0
　　Const NO_OPTIONS = 0
　　Set spShell = CreateObject("Shell.Application")
　　Set spFolder = spShell.BrowseForFolder(WINDOW_HANDLE, "选择目录:", NO_OPTIONS, "C:\Scripts")
　　Set spFolderItem = spFolder.Self
　　spPath = spFolderItem.Path
　　spPath = Replace(spPath, "\", "\")                                              ' Replace函数的返回值是一个字符串
　　txtsavepath.Text = spPath                                                       ' 把文件夹路径显示在标签上
　　SaveTextPath = txtsavepath.Text                                                 ' 路径暂存
　　Err:
　　End Sub
　　Private Sub CmdClearCounter_Click()
　　On Error GoTo Err
　　SendCount = 0                                                                   ' 发送计数器清零
　　ReceiveCount = 0                                                                ' 接收计数器清零
　　txtRXcount.Text = "RX:" & 0                                                     ' 接收计数
　　txtTXcount.Text = "TX:" & 0                                                     ' 发送计数
　　Err:
　　End Sub
　　Private Sub cmdclearrecieve_Click()
　　TxtReceive.Text = ""
　　End Sub
　　Private Sub cmdclearsend_Click()
　　txtsend.Text = ""
　　End Sub
　　Private Sub CmdHelp_Click()
　　FrmHelp.Show
　　End Sub
　　Private Sub CmdQuit_Click()
　　If MSComm.PortOpen = True Then MSComm.PortOpen = False                          ' 先判断串口是否打开，如果打开则先关闭
　　Unload Me                                                                       ' 卸载窗体，并退出程序
　　End
　　End Sub
　　Private Sub cmdsavedisp_Click()
　　On Error GoTo Err                                                               ' 错误处理
　　SaveTextPath = txtsavepath                                                      ' 路径暂存
　　Open txtsavepath & "\1.txt" For Output As #1                                    ' 打开文件
　　' 不存在的话 会创建文件,如已存在 会覆盖
　　' output 改为append 为追加
　　' 改为input 则只读
　　Print #1, Year(Date) & "年" & Month(Date) & "月" & Day(Date) & _
　　"日" & Hour(Time) & "时" & Minute(Time) & "分" & Second(Time) & _
　　"秒" & vbCrLf & TxtReceive.Text + vbCrLf                                        ' 把接收区的文本保存 文本前加上保存时间 （0000年00月00日00时00分00秒）
　　' vbcrlf 为回车换行
　　Close #1                                                                        ' 关闭文件
　　txtsavepath = "OK,1.txt Save"                                                   ' 提示保存成功
　　cmdsavedisp.Enabled = False
　　Savetime = Timer                                                                ' 记下开始的时间
　　While Timer < Savetime + 5                                                      ' 循环等待 5 - 要延时的时间
　　DoEvents                                                                    ' 转让控制权，以便让操作系统处理其它的事件。
　　Wend
　　txtsavepath = SaveTextPath                                                      ' 显示保存路径
　　cmdsavedisp.Enabled = True
　　Err:
　　End Sub
　　'=====================================================================================
　　'             选择要发送的文件并放入内存中
　　'=====================================================================================
　　Private Sub CmdSelectFile_Click()                                                   ' 选择要发送的文件
　　On Error GoTo Err                                                               ' 错误处理
　　CommonDialog1.Flags = cdlCFBoth
　　CommonDialog1.ShowOpen
　　TxtSendPath.Text = CommonDialog1.FileName                                       ' 把打开的文件名给于TxtSendPath
　　Open TxtSendPath.Text For Input As 1                                            ' 打开选择的文件
　　FileData = StrConv(InputB$(LOF(1), 1), vbUnicode)                               ' 显示打开的文件
　　Close 1                                                                         ' 关闭文件
　　Err:
　　End Sub
　　Private Sub cmdsend_Click()
　　On Error GoTo Err
　　If MSComm.PortOpen = True Then                                                  ' 如果串口打开了，则可以发送数据
　　If txtsend.Text = "" Then                                                   ' 判断发送数据是否为空
　　MsgBox "发送数据不能为空", 16, "串口调试助手"                           ' 发送数据为空则提示
　　Else
　　If ChkHexsend.Value = 1 Then                                            ' 发送方式判断
　　MSComm.InputMode = comInputModeBinary                               ' 二进制发送
　　Call hexSend                                                        ' 发送十六进制数据
　　Else                                                                    ' 按十六进制接收文本方式发送的数据时，文本也要按二进制发送发送
　　If ChkHexReceive.Value = 1 Then
　　MSComm.InputMode = comInputModeBinary                           ' 二进制发送
　　Else
　　MSComm.InputMode = comInputModeText                             ' 文本发送
　　End If
　　MSComm.Output = Trim(txtsend.Text)                                  ' 发送数据
　　ModeSend = False                                                    ' 设置文本发送方式
　　End If
　　End If
　　Else
　　MsgBox "串口没有打开，请打开串口", 48, "串口调试助手"                       ' 如果串口没有被打开，提示打开串口
　　End If
　　Err:
　　End Sub
　　Private Sub cmdstopdisp_Click()
　　On Error GoTo Err
　　If DisplaySwitch = False Then
　　DisplaySwitch = True                                                        ' 关闭显示
　　cmdstopdisp.Caption = "继续显示"
　　Else
　　DisplaySwitch = False                                                       ' 开启显示
　　cmdstopdisp.Caption = "停止显示"
　　End If
　　Err:
　　End Sub