【VB开源代码栏目提醒】：网学会员为需要VB开源代码的朋友们搜集整理了VB串口调试助手源代码 - 综合课件相关资料，希望对各位网友有所帮助!
1 VB串口调试助手源代码 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 quotshell32.dllquot Alias quotShellExecuteAquot 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 2 txtstatus.Text quotSTATUSCOM Port Clocedquot ’ 串口状态显示 mnuconnect.Caption quot断开串口quot cmdswitch.Caption quot打开串口quot ImgSwitch.Picture LoadPicturequotf:我的VB串口调试软件图片guan.jpgquot 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.Panels1.Text quotConnectedquot mnuautosend.Caption quot自动发送quot mnuconnect.Caption quot断开串口quot Else StatusBar1.Panels1.Text quot断开串口quot mnuautosend.Caption quotdisautosendquot mnuconnect.Caption quot打开串口quot End If StatusBar1.Panels2.Text quotCOMquot amp MSComm.CommPort StatusBar1.Panels3.Text MSComm.Settings If OutputAscii Then StatusBar1.Panels4 quotASCIIquot Else StatusBar1.Panels4 quotHEXquot 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 quotDisampautosendquot TmrAutoSend.Interval ValTxtAutoSendTime ’ 设置自动发送时间 TmrAutoSend.Enabled True ’ 打开自动发送定时器 Else mnuautosend.Caption quotautosendquot ChkAutoSend.Value 0 ’ 串口没有打开去掉自动发送 MsgBox quot串口没有打开请打开串口quot 48 quot串口调试助手quot 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 quotautosendquot 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 quotquot Then ’ 判断发送数据是否为空 MsgBox quot发送的文件为空quot 16 quot串口调试助手quot ’ 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 3 Else MSComm.InputMode comInputModeText ’ 文本发送 End If MSComm.Output TrimFileData ’ 发送数据 ModeSend True ’ 设置文本发送方式 End If Else MsgBox quot串口没有打开请打开串口quot 48 quot串口调试助手quot 如果串口没有被打开提示打开串口 End If Err: End Sub Private Sub Comm_initialPort 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 amp quotquot amp ParityBit amp quotquot amp DataBit amp quotquot amp 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 quotSTATUSquot amp cbocom.Text amp quot OPENDquot amp cbobaudrate.Text amp quotquot amp Leftcboparitybit.Text 1 amp quotquot amp cbodatabit.Text amp quotquot amp cbostopbit.Text Else txtstatus.Text quotSTATUSCOM Port Clocedquot ’ 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 quot没有发现此串口或被占用quot 49 quot串口调试助手quot CloseCom Case Else MsgBox quot没有发现此串口或被占用quot 49 quot串口调试助手quot CloseCom End Select Err.Clear End Sub Private Sub Comm_reSetPort As Byte BaudRate As String ParityBit As String DataBit As Integer StopBit As Integer 4 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 amp quotquot amp ParityBit amp quotquot amp DataBit amp quotquot amp 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 quot关闭串口quot ImgSwitch.Picture LoadPicturequotf:我的VB串口调试软件图片kai.jpgquot 显示串口已经打开的图标 ImgSwitchoff.Visible False mnuconnect.Caption quotdisconnectquot ImgSwitchon.Visible True txtstatus.Text quotSTATUSquot amp cbocom.Text amp quot OPENDquot amp cbobaudrate.Text amp quotquot amp Leftcboparitybit.Text 1 amp quotquot amp cbodatabit.Text amp quotquot amp cbostopbit.Text Else cmdswitch.Caption quot打开串口quot ImgSwitch.Picture LoadPicturequotf:我的VB串口调试软件图片guan.jpgquot 显示串口已经关闭的图标 ImgSwitchon.Visible False ImgSwitchoff.Visible True txtstatus.Text quotSTATUSCOM Port Clocedquot 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 quot没有成功请重试quot vbExclamation quot串口调试助手quot CloseCom ’ 调用关闭串口函数 Case Else MsgBox quot没有成功请重试quot vbExclamation quot串口调试助手quot 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_reSetValMidcbocom.Text 4 2 cbobaudrate.Text Leftcboparitybit.Text 1 cbodatabit.Text cbostopbit.Text 串口设置 End Sub Private Sub cbocom_Change Call Comm_reSetValMidcbocom.Text 4 2 cbobaudrate.Text Leftcboparitybit.Text 1 cbodatabit.Text cbostopbit.Text 串口设置 End Sub Private Sub cbodatabit_Change Call Comm_reSetValMidcbocom.Text 4 2 cbobaudrate.Text Leftcboparitybit.Text 1 cbodatabit.Text cbostopbit.Text 串口设置 End Sub 5 Private Sub cboparitybit_Change Call Comm_reSetValMidcbocom.Text 4 2 cbobaudrate.Text Leftcboparitybit.Text 1 cbodatabit.Text cbostopbit.Text 串口设置 End Sub Private Sub cbostopbit_Change Call Comm_reSetValMidcbocom.Text 4 2 cbobaudrate.Text Leftcboparitybit.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 quot取消自动发送quot TmrAutoSend.Interval ValTxtAutoSendTime ’ 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 quot串口没有打开请打开串口quot 48 quot串口调试助手quot 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 quot自动发送数据quot 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 CreateObjectquotShell.Applicationquot Set spFolder spShell.BrowseForFolderWINDOW_HANDLE quot选择目录:quot NO_OPTIONS quotC:Scriptsquot Set spFolderItem spFolder.Self spPath spFolderItem.Path spPath ReplacespPath quotquot quotquot ’ 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 quotRX:quot amp 0 ’ 接收计数 txtTXcount.Text quotTX:quot amp 0 ’ 发送计数 Err: 6 End Sub Private Sub cmdclearrecieve_Click TxtReceive.Text quotquot End Sub Private Sub cmdclearsend_Click txtsend.Text quotquot 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 amp quot1.txtquot 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 YearDate amp quot年quot amp MonthDate amp quot月quot amp DayDate amp _ quot日quot amp HourTime amp quot时quot amp MinuteTime amp quot分quot amp SecondTime amp _ quot秒quot amp vbCrLf amp 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 quotOK1.txt Savequot ’ 提示保存成功 cmdsavedisp.Enabled False Savetime Timer ’ 记下开始的时间 While Timer lt 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。
相关文章
最新文件
2013-9-15
