diff --git a/examples/count_firmware_write.jl b/examples/validate_firmware_write.jl
similarity index 52%
rename from examples/count_firmware_write.jl
rename to examples/validate_firmware_write.jl
index 0c7f2e9..3d6bbf7 100644
--- a/examples/count_firmware_write.jl
+++ b/examples/validate_firmware_write.jl
@@ -10,9 +10,13 @@ begin
     Pkg.activate(".")
     using CSV
     using DataFrames
+    using PlutoUI
     using PSBoardDataBase
 end
 
+# ╔═╡ 3bf488c4-cd2a-4b2c-b2ee-a6f8d84368df
+TableOfContents(depth = 3)
+
 # ╔═╡ f8b25d6d-5756-42fa-ac9f-a238d815dad2
 second_run_result = let
     result_file = PSBoardDataBase.DownloadCSVs.download_second_run_csv()
@@ -21,6 +25,11 @@ second_run_result = let
     df
 end
 
+# ╔═╡ 7d7c80a3-800f-48cf-908b-172730320571
+md"""
+# Count summary
+"""
+
 # ╔═╡ d597786d-3112-476e-a640-d494aed630bd
 filter(:motherboard_id => ismissing, second_run_result)
 
@@ -47,9 +56,47 @@ end
 # ╔═╡ c7adb9ed-ef92-4727-a446-556d65cf6f3f
 falied_boards = [895, 896, 1142, 1276, 1094, 1095]
 
+# ╔═╡ b8b31ee3-ffc9-4d55-80ff-001dfebfc776
+md"""
+# slave log validation
+"""
+
+# ╔═╡ f464ed57-7d42-42e5-a388-c815bba0ad60
+map(eachrow(second_run_result)) do row
+    row
+end
+
+# ╔═╡ 2bd267ea-78ab-454e-93e4-81a2f7a5d671
+second_run_writing_result = filter(:motherboard_id => (id -> begin
+    coalesce(id != 999999, false)
+end), second_run_result)
+
+# ╔═╡ 383e1e04-ba3e-49bf-9f99-46c53b37204b
+map(eachrow(second_run_writing_result)) do row
+    slavelog_dir = "../test/input/slavelogs/main/"
+    logfilename = "$(row.motherboard_id)_$(row.runid).txt"
+    logfilepath = joinpath(slavelog_dir, logfilename)
+    if !ispath(logfilepath)
+        return (psbid = row.motherboard_id, slavelog_psbid = missing, qspip = row.qspip)
+    end
+    if row.qspip != 1
+        return (psbid = row.motherboard_id, slavelog_psbid = missing, qspip = row.qspip)
+    end
+    psbid = PSBoardDataBase.SlaveLogParserV2.parse_slave_log_v2(logfilepath)
+    (psbid = row.motherboard_id, slavelog_psbid = psbid, qspip = row.qspip)
+end |> DataFrame
+
+# ╔═╡ 162ef015-7acd-4431-91bd-f3c5f1d26f8a
+md"""
+## result
+**Looks OK**
+"""
+
 # ╔═╡ Cell order:
 # ╠═1d057382-316a-11f0-1fbd-c9c7f879bbb1
+# ╠═3bf488c4-cd2a-4b2c-b2ee-a6f8d84368df
 # ╠═f8b25d6d-5756-42fa-ac9f-a238d815dad2
+# ╠═7d7c80a3-800f-48cf-908b-172730320571
 # ╠═d597786d-3112-476e-a640-d494aed630bd
 # ╠═da2d6bb7-d970-4eeb-9a1a-bbdda6506312
 # ╠═9dae37ff-614a-4d50-9f32-908e799e325e
@@ -57,3 +104,8 @@ falied_boards = [895, 896, 1142, 1276, 1094, 1095]
 # ╠═157a0ca3-a92a-4f6d-a3d3-c9650b4bf573
 # ╠═346993ff-fdb0-4f0f-a83f-23584e2bc540
 # ╠═c7adb9ed-ef92-4727-a446-556d65cf6f3f
+# ╠═b8b31ee3-ffc9-4d55-80ff-001dfebfc776
+# ╠═f464ed57-7d42-42e5-a388-c815bba0ad60
+# ╠═2bd267ea-78ab-454e-93e4-81a2f7a5d671
+# ╠═383e1e04-ba3e-49bf-9f99-46c53b37204b
+# ╠═162ef015-7acd-4431-91bd-f3c5f1d26f8a