在 Powershell 中使用事件处理程序写入串口

Question

我在使用 powershell 脚本配置条形码扫描器时遇到问题。我已经能够完成大部分工作，但我认为因为我使用相当简单的 writelines、readexisting 等，所以我并不总是能得到设备（条形码扫描仪）的正确答案，我也不确定我是否发送了所有行。

所以当我搜索 Whosebug（或 Google 时）我得到了很多关于 datareceivedhandler 等的东西，但我不确定如何获取我的脚本和事件处理程序上班。我从未在 powershell 中使用过任何事件处理程序，因此我对这些事件的理解能力有限。我知道它们在 .net 中被大量使用，但根据我的理解，我不能直接从 C# 代码中复制粘贴它们。有人可以在路上帮助我吗（我不需要整个重写的脚本，但只需要：

这就是您启动事件处理程序数据接收的方式
这就是你使用上述方法写行的方式
这就是你用上面的方法做 readline 的方法

很抱歉，如果问题出了问题，那么您可以关闭它。

    #requires -version 2
<#
.SYNOPSIS
  <Overview of script>
.DESCRIPTION
  <Brief description of script>
.PARAMETER <Parameter_Name>
    <Brief description of parameter input required. Repeat this attribute if required>
.INPUTS
  <Inputs if any, otherwise state None>
.OUTPUTS
  <Outputs if any, otherwise state None - example: Log file stored in C:\Windows\Temp\<name>.log>
.NOTES
  Version:        1.0
  Author:         <Name>
  Creation Date:  <Date>
  Purpose/Change: Initial script development
  
.EXAMPLE
  <Example goes here. Repeat this attribute for more than one example>
#>

#---------------------------------------------------------[Initialisations]--------------------------------------------------------

#Set Error Action to Silently Continue
$ErrorActionPreference = "SilentlyContinue"

#----------------------------------------------------------[Declarations]----------------------------------------------------------

#Script Version
#$sScriptVersion = "1.0"
#Log File Info
#$ScriptName = "<script_name>.log"


#-----------------------------------------------------------[Functions]------------------------------------------------------------

function PushConfig
{
  try 
  {
    $scanner = (Get-WmiObject Win32_PnPEntity |Where-Object {$_.name -match "Barcode Scanner*" })
    Write-Host "`nScanners gevonden: $(($scanner | Measure-Object).count)" -ForegroundColor DarkMagenta
    if ($scanner)
    {
      $scannerName = $scanner.Name
      #Here I get the com port out of the object
      $posCOM = $ScannerName.IndexOf("COM")
      [int]$posCOM = $posCOM + 2
      $COMNummer = $scannerName.Substring($posCOM+1,1)
      $COMPoort = "COM" + $COMNummer
      Write-Host "We found the datalogic barcode scanner on: $COMPoort" -ForegroundColor DarkMagenta
      #opening com port
      $port = New-Object System.IO.Ports.SerialPort $COMPoort,9600,None,8,one
      try
      {
        $port.Open()
      }
      catch
      {
        $port.PortName.ToString() + "is already open"
      }
      if (-not $port.IsOpen)
      {
        Write-Error "COMpoort $COMPoort cannot be opened";
        Write-Output "Please close the script, and close all programms that might be using the com port"
        $port.Close()
      }
      Write-Host "--------------------------------------------------------------------------------------------------------" -ForegroundColor DarkMagenta
      #scanner geeft teken van leven
      $port.WriteLine("`$+`$!`r")#read out software version from scanner
      Start-Sleep -Milliseconds 500
      $output = $port.ReadExisting()
      Write-Host "SOFTWARE versie:  $output" -ForegroundColor DarkMagenta
      Write-Host "--------------------------------------------------------------------------------------------------------" -ForegroundColor DarkMagenta
      $configuratie = Get-Content -path c:\temp\barcode_dl_4500_config.txt
      $port.WriteLine("`$S`r")#putting the scanner in service mode
      Write-Host "putting the scanner in service mode" -ForegroundColor DarkMagenta
      Write-Host "--------------------------------------------------------------------------------------------------------" -ForegroundColor DarkMagenta
      $output = $port.ReadExisting()
      Start-Sleep -Milliseconds 2500
      write-host $output -ForegroundColor Red
      Write-Host "--------------------------------------------------------------------------------------------------------" -ForegroundColor DarkMage
      Write-Host "Sending the configuration to the scanner" -ForegroundColor DarkMagenta
      Write-Host "--------------------------------------------------------------------------------------------------------" -ForegroundColor DarkMagenta
      foreach ($line in $configuratie) #Sending the configuration to the scanner
      {
        Write-Host "HOST:`$$line" -ForegroundColor DarkMagenta
        $port.Write("`$$line`r")
        $output = $port.ReadExisting()
        Start-Sleep -Milliseconds 80
        Write-Output "DEVICE: $output"
        if ($output -eq "$>`r")
        {
          write-host "Device OK" -ForegroundColor Green
        }
        else {
          write-host "Device NOK" -ForegroundColor Red
        }
      }
      write-host "HOST: Saving the settings"
      $port.WriteLine("`$Ar\x0d`r")#saving settings on barcode scanner
      $output = $port.ReadExisting()
      Write-Host "DEVICE: $output" -ForegroundColor Magenta
      $port.WriteLine("`$s`r")#closing service mode
      $output = $port.ReadExisting()
      Write-Host "DEVICE: $output"
      Start-Sleep -Milliseconds 5000
      Write-Host "HOST:Leaving service mode"
      $output = $port.ReadExisting()
      Write-Host "DEVICE: $output"
    }
    $port.Close()
  }
  catch 
  {
      Write-Host "Something has gone wrong " -ForegroundColor Red
      Write-output $_.ScriptStackTracke
      Write-Output $_.Exception.Message
  }  
}

#-----------------------------------------------------------[Execution]------------------------------------------------------------

Start-Transcript -Path C:\temp\Logs\seding_config_scannedl_4500.log -IncludeInvocationHeader
PushConfig

停止转录

这是我得到的结果：

Scanners found: 1
We found the datalogic barcode scanenr on: COM5
--------------------------------------------------------------------------------------------------------
SOFTWARE versie:  WLC4090-BASE-WIRELESS-CHARGER SOFTWARE RELEASE 610116050 BL 38.96fa43e6c 10/Nov/2021
--------------------------------------------------------------------------------------------------------
Putting the scanner in service mode
--------------------------------------------------------------------------------------------------------
$>
--------------------------------------------------------------------------------------------------------
Sending the configuration to the scanner
--------------------------------------------------------------------------------------------------------
HOST:$AE
DEVICE:
Device NOK
HOST:$YF00000000000000000000
DEVICE:
Device NOK
HOST:$M05
DEVICE:
Device NOK
HOST:$CSNOG02
DEVICE:
Device NOK
HOST:$CSLPS03
DEVICE:
Device NOK
HOST:$CSMSD00
DEVICE:
Device NOK
HOST:$CLAGL03
DEVICE:
Device NOK
HOST:$CAB3B01
DEVICE:
Device NOK
HOST:$CBPVO01
DEVICE:
Device NOK
HOST:$As
DEVICE:
Device NOK
HOST:$M47
DEVICE:
Device NOK
HOST:$CIPNR02
DEVICE:
Device NOK
HOST:$CSNOG02
DEVICE:
Device NOK
HOST:$CSLPS03
DEVICE:
Device NOK
HOST:$CI2EN01
DEVICE:
Device NOK
HOST:$CI2L20A
DEVICE:
Device NOK
HOST:$CLADF02
DEVICE:
Device NOK
HOST:$CLADI00
DEVICE:
Device NOK
HOST:$CU2EN01
DEVICE:
Device NOK
HOST:$CU2L102
DEVICE:
Device NOK
HOST:$CLEEN01
DEVICE:
Device NOK
HOST:$CU8AI00
DEVICE:
Device NOK
HOST:$CSMSD00
DEVICE:
Device NOK
HOST:$CLAGL03
DEVICE:
Device NOK
HOST:$CMSCT00
DEVICE:
Device NOK
HOST:$CMSEN01
DEVICE:
Device NOK
HOST:$CPLCT00
DEVICE:
Device NOK
HOST:$CPLEN01
DEVICE:
Device NOK
HOST:$CUSSE00
DEVICE:
Device NOK
HOST:$CI8CE01
DEVICE:
Device NOK
HOST:$CDMDA05
DEVICE:
Device NOK
HOST:$CI8CE00
DEVICE:
Device NOK
HOST:$CABID4A2000
DEVICE:
Device NOK
HOST:$CEBID532000
$>VICE: $>
Device NOK
HOST:$C8BID4D2000
$>VICE: $>
Device NOK
HOST:$C3BID4D2000
DEVICE: $>
Device OK
HOST:$CISID482000
DEVICE:
Device NOK
HOST:$CINID6E2000
$>VICE: $>
Device NOK
HOST:$CC3ID412000
DEVICE: $>
Device OK
HOST:$CP3ID582000
DEVICE: $>
Device OK
HOST:$CI2ID442000
DEVICE: $>
Device OK
HOST:$CS2ID502000
DEVICE: $>
Device OK
HOST:$CF2ID4F2000
DEVICE: $>
Device OK
HOST:$CIAID262000
DEVICE: $>
Device OK
HOST:$CU2ID432000
DEVICE: $>
Device OK
HOST:$CCBID462000
DEVICE: $>
Device OK
HOST:$CACID532000
DEVICE: $>
Device OK
HOST:$CHRID652000
DEVICE: $>
Device OK
HOST:$CC9ID492000
DEVICE: $>
Device OK
HOST:$CC1ID622000
DEVICE: $>
Device OK
HOST:$CC8ID482000
DEVICE: $>
Device OK
HOST:$CU8ID472000
DEVICE: $>
Device OK
HOST:$CMSID562000
DEVICE: $>
Device OK
HOST:$CCFID6D0000
DEVICE: $>
Device OK
HOST:$CI8ID482000
DEVICE: $>
Device OK
HOST:$CM2ID452000
DEVICE: $>
Device OK
HOST:$CCCID592000
DEVICE: $>
Device OK
HOST:$CPLID612000
DEVICE: $>
Device OK
HOST:$CALID6F2000
DEVICE: $>
Device OK
HOST:$CA2ID4A2000
DEVICE: $>
Device OK
HOST:$CA5ID4A2000
DEVICE: $>
Device OK
HOST:$CE2ID532000
DEVICE: $>
Device OK
HOST:$CE5ID532000
DEVICE: $>
Device OK
HOST:$C82ID4D2000
DEVICE: $>
Device OK
HOST:$C85ID4D2000
DEVICE: $>
Device OK
HOST:$C32ID4D2000
DEVICE: $>
Device OK
HOST:$C35ID4D2000
DEVICE: $>
Device OK
HOST:$C4BID472000
DEVICE: $>
Device OK
HOST:$CXBID472000
DEVICE: $>
Device OK
HOST:$CLBID472000
DEVICE: $>
Device OK
HOST:$CDMID632000
DEVICE: $>
Device OK
HOST:$CGBID244100
DEVICE: $>
Device OK
HOST:$CG2ID244200
DEVICE: $>
Device OK
HOST:$CG5ID244300
DEVICE: $>
Device OK
HOST:$CAB3B01
DEVICE: $>
Device OK
HOST:$CBPVO01
DEVICE: $>
Device OK
HOST:$CBCHP02
DEVICE: $>
Device OK
HOST:$As
DEVICE: $>
Device OK
HOST:$AS
DEVICE: $>
Device OK
HOST:$M35
DEVICE: $>
Device OK
HOST:$CSNOG02
DEVICE:
Device NOK
HOST:$CSLPS03
DEVICE:
Device NOK
HOST:$CSMSD00
$>VICE: $>
Device NOK
HOST:$CLAGL03
DEVICE: $>
Device OK
HOST:$AS
DEVICE: $>
Device OK
HOST:$HA05
DEVICE: $>
Device OK
HOST:$HA47
DEVICE:
Device NOK
HOST:$U00000008554C453202F20A0A
DEVICE: $>
Device OK
HOST:$U000800107B0A633D496E74546F537472284F5554
DEVICE:
Device NOK
HOST:$U00180010312E446174614C656E290A443D4F5554
$>VICE: $>
Device NOK
HOST:$U00280010312E446174610A4C3D226320220A0A69
DEVICE: $>
Device OK
HOST:$U003800106628284F5554312E4461746154797065
DEVICE: $>
Device OK
HOST:$U004800103D3D22436F646531323822297C7C284F
DEVICE: $>
Device OK
HOST:$U005800105554312E44617461547970653D3D2249
DEVICE: $>
Device OK
HOST:$U006800105342542229290A7B0A4C3D224820220A
DEVICE: $>
Device OK
HOST:$U007800107D0A6966284F5554312E446174615479
DEVICE: $>
Device OK
HOST:$U0088001070653D3D22436F6465333922290A7B0A
DEVICE: $>
Device OK
HOST:$U00980010653D284F5554312E446174614C656E29
DEVICE: $>
Device OK
HOST:$U00A800102D320A633D496E74546F537472286529
DEVICE: $>
Device OK
HOST:$U00B800100A4F5554312E44617461547970653D22
DEVICE: $>
Device OK
HOST:$U00C80010436F6465313238220A443D4D6964284F
DEVICE: $>
Device OK
HOST:$U00D800105554312E446174612C322C65290A4C3D
DEVICE: $>
Device OK
HOST:$U00E80010224120220A7D0A0A6966284F5554312E
DEVICE: $>
Device OK
HOST:$U00F8001044617461547970653D3D2249326F6635
DEVICE: $>
Device OK
HOST:$U0108001022290A7B0A4C3D224420220A7D0A6966
DEVICE: $>
Device OK
HOST:$U01180010284F5554312E44617461547970653D3D
DEVICE: $>
Device OK
HOST:$U01280010224D5349506C657373657922290A0A7B
DEVICE: $>
Device OK
HOST:$U013800100A0A653D4F5554312E446174614C656E
DEVICE: $>
Device OK
HOST:$U014800102D310A0A633D496E74546F5374722865
DEVICE: $>
Device OK
HOST:$U01580010290A0A4C3D225620220A7D0A6966284F
DEVICE: $>
Device OK
HOST:$U016800105554312E44617461547970653D3D2245
DEVICE: $>
Device OK
HOST:$U01780010414E3822290A7B0A4C3D224D20220A7D
DEVICE: $>
Device OK
HOST:$U018800100A6966284F5554312E44617461547970
DEVICE: $>
Device OK
HOST:$U01980010653D3D2245414E313322290A7B0A4C3D
DEVICE: $>
Device OK
HOST:$U01A80010224D20220A7D0A0A6966284F5554312E
DEVICE: $>
Device OK
HOST:$U01B8001044617461547970653D3D225550434122
DEVICE: $>
Device OK
HOST:$U01C80010290A7B0A4F5554312E44617461547970
DEVICE: $>
Device OK
HOST:$U01D80010653D22436F6465313238220A443D2230
DEVICE: $>
Device OK
HOST:$U01E80010222B4F5554312E446174610A633D496E
DEVICE: $>
Device OK
HOST:$U01F8001074546F537472284F5554312E44617461
DEVICE: $>
Device OK
HOST:$U020800104C656E2B31290A4C3D224D20220A7D0A
DEVICE: $>
Device OK
HOST:$U021800100A6966284F5554312E44617461547970
DEVICE: $>
Device OK
HOST:$U02280010653D3D22446174616D61747269782229
DEVICE: $>
Device OK
HOST:$U023800100A7B0A4C3D226320220A7D0A69662828
DEVICE: $>
Device OK
HOST:$U024800104F5554312E44617461547970653D3D22
DEVICE: $>
Device OK
HOST:$U02580010436F646531323822292626284C656674
DEVICE: $>
Device OK
HOST:$U02680010284F5554312E446174612C32293D3D22
DEVICE: $>
Device OK
HOST:$U027800105C5C5C7838302229290A7B0A653D4F55
DEVICE: $>
Device OK
HOST:$U0288001054312E446174614C656E2D320A633D49
DEVICE: $>
Device OK
HOST:$U029800106E74546F5374722865290A0A4C3D2247
DEVICE: $>
Device OK
HOST:$U02A8001020220A7D0A6966284F5554312E446174
DEVICE: $>
Device OK
HOST:$U02B8001061547970653D3D2245414E3132382229
DEVICE: $>
Device OK
HOST:$U02C800100A7B0A4C3D224720220A7D0A0A4F5554
DEVICE: $>
Device OK
HOST:$U02D80010312E446174613D4C2B632B2220222B44
DEVICE: $>
Device OK
HOST:$U02E800100A446F534C46284F555431290A0A7D0A
DEVICE: $>
Device OK
HOST: saving the settings
DEVICE: $>
DEVICE:
HOST:leaving service mode
$>VICE: $>
Transcript stopped, output file is C:\uz\Logs\naamScript.log

Answer 1

我（还）没有成功使用事件处理程序，但解决了我没有得到答案等问题...在新（工作）代码下面

#requires -version 2
<#
.SYNOPSIS
  configuration of gm4500 scanner for KWS
.DESCRIPTION
  see synopsis
.PARAMETER <Parameter_Name>
    none
.INPUTS
  none
.OUTPUTS
  log in c\uz\logs\nameofscript.txt
.NOTES
  Version:        0.33
  Author:         Chris Vermeijlen
  Creation Date:  27-05-2022
  Purpose/Change: Initial script development
  
.EXAMPLE
  <Example goes here. Repeat this attribute for more than one example>
#>

#---------------------------------------------------------[Initialisations]--------------------------------------------------------

#Set Error Action to Silently Continue
$ErrorActionPreference = "SilentlyContinue"
# $ScriptFolder = Split-Path -Parent $Script:MyInvocation.MyCommand.Path
# $ScriptModules = Join-Path -Path $ScriptFolder -ChildPath Modules
# $env:PSModulePath = "$ScriptModules;$env:PSModulePath"

#----------------------------------------------------------[Declarations]----------------------------------------------------------

#Script Version
#$sScriptVersion = "1.0"
#Log File Info
$ScriptName = "DatalogicGM4500Configr2.log"
$scanner = ""
$scannerName =""
$output = "no input, also no output then (yet)"
$configuration = Get-Content -path C:\uz\temp\configuratie.txt
$tel = 0
$linesInConf = ($configuration).Length

#-----------------------------------------------------------[Functions]------------------------------------------------------------
function PushConfig
{
     Write-Host "--------------------------------------------------------------------------------------------------------"
    $scanner = (Get-WmiObject Win32_PnPEntity |Where-Object {$_.name -match "Barcode Scanner*" })
    Write-Host "`nScanners found: $(($scanner | Measure-Object).count)"
    if ((($scanner | Measure-Object).count) -eq 0) 
    {
        Write-Host "No scanner has been found, close programs that are using the comport, or connect a COM-port configured barcodescanner." -ForegroundColor Cyan
        Start-Sleep -Milliseconds 2000
    }
    else 
    {
        $scannerName = $scanner.Name
        #get com port number out of object
        $positionCOM = $scannerName.IndexOf("COM")
        [int]$positionCOM = $positionCOM + 2
        $COMPortNumber = $scannerName.Substring($positionCOM+1,1)
        $COMPort = "COM" + $COMPortNumber
        Write-Host "We found a datalogic scanner on: $COMPort"
        #opening COM-port
        try 
        {
            $port = New-Object System.IO.Ports.SerialPort $COMPort,9600,None,8,One
            $port.Open()
            if (-not $port.IsOpen)
            {
                Write-Error "COMport $COMPoort cannot be opened";
                Write-Output "Please close the script and all programs using the COM-port ( KWS, Putty,...) or the scanner for that matter"
            }
            write-output $port
            Write-Host "--------------------------------------------------------------------------------------------------------"
        }
        catch 
        {
            Write-Host "Error trying to open the comport" -ForegroundColor Red
            Write-output $_.ScriptStackTracke
            Write-Output $_.Exception.Message
        }
        #does scanner react? -> read software version
        try
        {
            $port.WriteLine("`$+`$!`r")#reading software version
            Start-Sleep -Milliseconds 500
            $output = $port.ReadExisting()
            Write-Host "SOFTWARE VERSIE: $output"
            Write-Host "--------------------------------------------------------------------------------------------------------"
        }
        catch
        {
            Write-Host "Error while retrieving software version" -ForegroundColor Red
            Write-output $_.ScriptStackTracke
            Write-Output $_.Exception.Message
        }
        #sending configuration to scanner
        try 
        {
            #putting the device into service mode
            $port.WriteLine("`$S`r")
            Start-Sleep -Milliseconds 3000
            $output = $port.ReadExisting()        
            Write-Host "DEVICE: $output"  -foregroundcolor Gray
            if ($output -eq "`$>`r")
            {
                Write-Host "device is in service mode" -ForegroundColor Cyan
                $port.Close()
                Write-Host "Close port $COMPort @ 9600" -ForegroundColor Cyan
                Start-Sleep -Milliseconds 1000
                Write-host "Open port $COMPort @ 115200" -ForegroundColor Cyan
                Start-Sleep -Milliseconds 1000
                $port2 = New-Object System.IO.Ports.SerialPort $COMPort,115200,None,8,One
                $port2.Open()
                Start-Sleep -Milliseconds 1000
            }
            else
            {
                Write-Host "something went wrong putting the device in service mode"
                $port.Close()
                exit
            }
            #sending the configuration, line per line
            foreach ($line in $configuration)
            {
                $port2.WriteLine("`$$line`r")
                write-host "HOST: $line" -ForegroundColor DarkGray
                do 
                {
                    $output = $port2.ReadExisting()
                }
                 while ($output -eq "")
                Write-Host "DEVICE: $output" -ForegroundColor Gray
                if ($output -eq "`$>`r")
                {
                    write-Host "Device: OK" -foregroundcolor Green
                    $tel++
                }
                else 
                {
                    write-Host "Device: NOK"
                }
                Start-Sleep -Milliseconds 30
            }
            Start-Sleep -Milliseconds 30
            #save settings on device
            Write-host "HOST: saving settings on device" -foregroundcolor DarkGray
            $port2.WriteLine("`$Ar`r")
            Start-Sleep -Milliseconds 30
            $output = $port2.ReadExisting()
            Write-Host "DEVICE: $output"
            Start-Sleep -Milliseconds 4000
            #closing the service mode
            Write-host "HOST: Close Service mode"  -foregroundcolor DarkGray
            $port2.WriteLine("`$s`r")
            Start-Sleep -Milliseconds 4000
            Write-Host "--------------------------------------------------------------------------------------------------------"  -foregroundcolor DarkGray
            Write-Host "HOST: close com port" -foregroundcolor DarkGray
            Write-Host "--------------------------------------------------------------------------------------------------------"  -foregroundcolor DarkGray
            $port2.Close()
            if ($port2.IsOpen)
            {
                write-host "port is still open :s" -ForegroundColor Red
            }
            else
            {
                write-host "Port $COMPort is closed" -ForegroundColor Green
            }
            if ($tel -eq $linesInConf)
            {
                Write-Host "--------------------------------------------------------------------------------------------------------" -foregroundcolor Green
                write-Host "All lines of configuration are written correctly to device" -foregroundcolor Green
                Write-Host "--------------------------------------------------------------------------------------------------------" -foregroundcolor Green
                Start-Sleep -Milliseconds 1000
            }
            else
            {
                Write-Host "--------------------------------------------------------------------------------------------------------" -foregroundcolor Red
                write-Host "Something has gone wrong, contact scanner team" -foregroundcolor Red
                Write-Host "--------------------------------------------------------------------------------------------------------" -foregroundcolor Red
                Start-Sleep -Milliseconds 1000
            }
        }
        catch 
        {
            Write-Host "Error while sending configuration to scanner" -ForegroundColor Red
            Write-output $_.ScriptStackTracke
            Write-Output $_.Exception.Message
        }        
    }
}




#-----------------------------------------------------------[Execution]------------------------------------------------------------

Start-Transcript -Path C:\namefolder\Logs\DatalogicGM4500Configr2.log -IncludeInvocationHeader
Get-CimInstance Win32_OperatingSystem | Select-Object Caption, InstallDate, ServicePackMajorVersion, OSArchitecture, BootDevice, BuildNumber, CSName | Format-List
PushConfig
Stop-Transcript

在 Powershell 中使用事件处理程序写入串口

Serial port writing with an eventhandler in Powershell

powershell

eventhandler