96 lines
3.6 KiB
PowerShell
96 lines
3.6 KiB
PowerShell
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#Requires -Version 5.1
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<#
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.SYNOPSIS
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Diagnose and repair SEGGER J-Link USB connection on Windows.
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.NOTES
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Run PowerShell as Administrator for driver reinstall / phantom device removal.
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Close IAR and J-Link Commander before running.
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#>
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$ErrorActionPreference = "Continue"
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$JLinkExe = "C:\Program Files\SEGGER\JLink_V818\JLink.exe"
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$DriverInf = "C:\Program Files\SEGGER\JLink_V818\USBDriver\x64\JLink.inf"
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function Write-Step($text) {
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Write-Host "`n=== $text ===" -ForegroundColor Cyan
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}
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Write-Step "1. J-Link process check"
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$procs = Get-Process -ErrorAction SilentlyContinue | Where-Object {
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$_.ProcessName -match '^(JLink|IarIdePm|cspybat|IAR)$'
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}
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if ($procs) {
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Write-Host "[WARN] These may lock J-Link:" -ForegroundColor Yellow
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$procs | Format-Table ProcessName, Id -AutoSize
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Write-Host "Close IAR / J-Link Commander windows, then run:" -ForegroundColor Yellow
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Write-Host ' Stop-Process -Name JLink,IarIdePm -Force -ErrorAction SilentlyContinue' -ForegroundColor Gray
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} else {
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Write-Host "[OK] No J-Link / IAR debugger processes" -ForegroundColor Green
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}
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Write-Step "2. USB device status (VID 1366 = SEGGER)"
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$all = Get-PnpDevice -ErrorAction SilentlyContinue | Where-Object {
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$_.InstanceId -match 'VID_1366'
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}
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if (-not $all) {
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Write-Host "[FAIL] No J-Link entries in PnP (not plugged in or bad cable/port)" -ForegroundColor Red
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} else {
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$all | Format-Table FriendlyName, Status, Present, Problem -AutoSize
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$present = $all | Where-Object { $_.Present -eq $true }
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if (-not $present) {
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Write-Host "[FAIL] J-Link entries exist but Present=False (ghost device, Code 45)" -ForegroundColor Red
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Write-Host " Unplug USB, uninstall hidden 'J-Link driver', replug." -ForegroundColor Yellow
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} else {
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Write-Host "[OK] J-Link is present on USB" -ForegroundColor Green
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}
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}
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Write-Step "3. Installed SEGGER drivers"
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driverquery | Select-String -Pattern 'jlink' -CaseSensitive:$false
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Write-Step "4. J-Link Commander probe test"
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if (Test-Path $JLinkExe) {
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$out = cmd /c "echo exit| `"$JLinkExe`"" 2>&1 | Out-String
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if ($out -match 'O\.K\.|Found .* J-Link') {
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Write-Host "[OK] $out.Trim()" -ForegroundColor Green
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} else {
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Write-Host "[FAIL] $out.Trim()" -ForegroundColor Red
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}
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} else {
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Write-Host "[MISS] $JLinkExe" -ForegroundColor Red
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}
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Write-Step "5. Repair actions (Administrator)"
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$isAdmin = ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole(
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[Security.Principal.WindowsBuiltInRole]::Administrator)
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if (-not $isAdmin) {
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Write-Host "[INFO] Re-run this script as Administrator to auto-repair drivers." -ForegroundColor Yellow
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Write-Host " Right-click PowerShell -> Run as administrator" -ForegroundColor Yellow
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exit 0
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}
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Write-Host "Stopping J-Link / IAR helper processes..."
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Stop-Process -Name JLink -Force -ErrorAction SilentlyContinue
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Stop-Process -Name IarIdePm -Force -ErrorAction SilentlyContinue
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Start-Sleep -Seconds 2
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Write-Host "Removing phantom J-Link PnP devices..."
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Get-PnpDevice -ErrorAction SilentlyContinue | Where-Object {
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$_.InstanceId -match 'VID_1366'
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} | ForEach-Object {
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Write-Host " Removing $($_.InstanceId)"
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pnputil /remove-device $_.InstanceId 2>&1 | Out-Null
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}
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if (Test-Path $DriverInf) {
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Write-Host "Reinstalling J-Link USB driver from JLink_V818..."
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pnputil /add-driver $DriverInf /install 2>&1
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Write-Host "[DONE] Now unplug J-Link USB, wait 5s, plug back in." -ForegroundColor Green
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Write-Host " Then verify: echo exit | `"$JLinkExe`"" -ForegroundColor Gray
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} else {
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Write-Host "[MISS] Driver INF: $DriverInf" -ForegroundColor Red
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}
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