From 454a7f2dff3235c67701fa9d56c4e5a08f5eb4fb Mon Sep 17 00:00:00 2001
From: FE <93105911+ugokutennp@users.noreply.github.com>
Date: Tue, 26 Dec 2023 18:19:18 +0900
Subject: [PATCH] Add files via upload

---
 SD_gen.bat | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 SD_gen.bat

diff --git a/SD_gen.bat b/SD_gen.bat
new file mode 100644
index 0000000..0ddf339
--- /dev/null
+++ b/SD_gen.bat
@@ -0,0 +1,82 @@
+:: Sd_gen.bat
+:: ver 1.0
+
+@echo off
+setlocal enabledelayedexpansion
+
+:: SteamVR directory settings
+set "steamvrDir=C:\Program Files (x86)\Steam\steamapps\common\SteamVR"
+
+:: Delete old directories
+if exist "softdevice" (
+    rmdir /s /q "softdevice"
+)
+if exist "gd_1558748372_dfu" (
+    rmdir /s /q "gd_1558748372_dfu"
+)
+
+:: Create new directories
+echo Creating directories...
+mkdir "softdevice"
+mkdir "gd_1558748372_dfu"
+
+:: File unpacking
+echo Unpacking softdevice...
+powershell -Command "Expand-Archive -Path '%steamvrDir%\drivers\indexhmd\resources\firmware\radio\gd_1558748372_dfu.zip' -DestinationPath 'gd_1558748372_dfu'"
+
+:: Convert bin to uf2
+set args=%*
+powershell "iex((@('')*3+(cat '%~f0'|select -skip 40))-join[char]10)"
+
+
+:: Exit
+pause
+exit /b
+
+
+
+
+:: The following is powershell script
+Set-Location $PSScriptRoot
+
+$UF2_MAGIC_START0 = 0x0A324655  # "UF2\n"
+$UF2_MAGIC_START1 = 0x9E5D5157  # Randomly selected
+$UF2_MAGIC_END    = 0x0AB16F30  # Ditto
+$appstartaddr     = 0x1000     # offset
+$familyid         = 0xADA52840  # nrf52840
+$inputFile        = "gd_1558748372_dfu\s140_nrf52_6.1.1_softdevice.bin"
+$outputFile       = "softdevice\s140_nrf52_6.1.1_softdevice.uf2"
+
+Write-Host "Converting bin to uf2..."
+
+$file_content = Get-Content -LiteralPath $inputFile -Encoding Byte
+$numblocks = ($file_content.Length + 0xFF) -shr 8
+$outp = @()
+
+foreach ($blockno in @(0..($numblocks - 1))) {
+    $ptr = 0x100 * $blockno
+    $chunk = $file_content[$ptr..($ptr + 0xFF)]
+    $flags = 0
+    if ($familyid) {
+        $flags = $flags -bor 0x2000
+    }
+    $block = @(
+        [System.BitConverter]::GetBytes([Int32]$UF2_MAGIC_START0),
+        [System.BitConverter]::GetBytes([Int32]$UF2_MAGIC_START1),
+        [System.BitConverter]::GetBytes([Int32]$flags),
+        [System.BitConverter]::GetBytes([Int32]($ptr + $appstartaddr)),
+        [System.BitConverter]::GetBytes([Int32]256),
+        [System.BitConverter]::GetBytes([Int32]$blockno),
+        [System.BitConverter]::GetBytes([Int32]$numblocks),
+        [System.BitConverter]::GetBytes([Int32]$familyid),
+        $chunk,
+        (@([Byte]0x00) * (0x200 - (32 + $chunk.Length + 4))),
+        [System.BitConverter]::GetBytes([Int32]$UF2_MAGIC_END)
+    ) | ForEach-Object { $_ }
+    $outp += $block
+}
+
+$outp | Set-Content -LiteralPath $outputFile -Encoding Byte
+
+Write-Host "Softdevice generation completed"
+