--upd

utils/debugger_script.ps1

@@ -3,10 +3,20 @@ $dir=$PSScriptRoot
 $MyCommand="$dir"+"\stlink\st-info.exe --probe --hot-plug"
 Invoke-Expression -Command $MyCommand | Out-String -OutVariable output
 $DevicesNum=$output.Substring($output.IndexOf("Found") + 7, 1)
+Write-Host -ForegroundColor Yellow -BackgroundColor Blue 'Do you wanna run the script N/Y'
+$key=Read-Host
+if ($key.ToUpper() -notmatch 'Y')
+{
+    exit
+}
 if ($DevicesNum -eq 1)
 {
     $serial=$output.Substring($output.Trim().IndexOf("serial") + 12, 24)
 }
+elseif ($DevicesNum -eq 0)
+{
+    exit
+}
 else
 {
     Write-Host -ForegroundColor Yellow -BackgroundColor Blue 'Press key which number of debugger you wanna use'
@@ -24,7 +34,7 @@ $serial=$serial.ToCharArray()
 $StringForCompare='adapter serial "'
 
 for ($i = 0; $i -lt $serial.Count; $i=$i+2) {
-    $StringForCompare=$StringForCompare.Insert($StringForCompare.Length,"\x$($serial.Get($i))$($serial.Get($i+1))")
+    $StringForCompare=$StringForCompare.Insert($StringForCompare.Length,"$($serial.Get($i))$($serial.Get($i+1))")
 }
 $StringForCompare=$StringForCompare.Insert($StringForCompare.Length,'"')
 $Path = "$dir"+"/board.cfg"