diff --git a/src/SlaveLogParser.jl b/src/SlaveLogParser.jl
index edc5223..0c6b70b 100644
--- a/src/SlaveLogParser.jl
+++ b/src/SlaveLogParser.jl
@@ -12,7 +12,7 @@ const HEADER_POWER_START = "=============== Test Power Start ==============="
 const HEADER_ASDTP_START = "=============== Test ASDTP Start ==============="
 const HEADER_RECOV_START = "=============== Test Recov Start ==============="
 HEADER_STARTS =
-    [HEADER_QSPIP_START, HEADER_POWER_START, HEADER_ASDTP_START, HEADER_RECOV_START]
+    SVector(HEADER_QSPIP_START, HEADER_POWER_START, HEADER_ASDTP_START, HEADER_RECOV_START)
 
 """
 Indicate parser state.
@@ -27,16 +27,6 @@ In `MODE_NONE`, each line is feeded into parser to detect the start of each sect
     MODE_RECOV
 end
 
-struct PowerResult
-    result_3v3d::Float64
-    result_3v3a::Float64
-    result_n3va::Float64
-    fpga_temp::Float64
-    channelvals::SVector{16, @NamedTuple{dac::Int64, adc::Int64}}
-
-    result::Bool
-end
-
 struct SlaveLogResult end
 
 """
@@ -108,6 +98,31 @@ function parse_qspip_section!(lines::Base.Iterators.Stateful)
     nothing
 end
 
+# ==================================
+# Power
+
+"""
+Results from power test
+
+# Fields
+- result_3v3d::Float64
+- result_3v3a::Float64
+- result_n3va::Float64
+- fpga_temp::Float64
+- channelvals::SVector{16, @NamedTuple{dac::Int64, adc::Int64}}
+
+- result::Bool
+"""
+struct PowerResult
+    result_3v3d::Float64
+    result_3v3a::Float64
+    result_n3va::Float64
+    fpga_temp::Float64
+    channelvals::SVector{16, @NamedTuple{dac::Int64, adc::Int64}}
+
+    result::Bool
+end
+
 """
     parse_power_section!(lines::Base.Iterators.Stateful)::PowerResult
 
@@ -148,7 +163,7 @@ function parse_power_section!(lines::Base.Iterators.Stateful)::PowerResult
             (dac = parse(Int64, m[1]), adc = parse(Int64, m[2]))
         end |>
         Tuple |>
-        SVector
+        SVector{16, @NamedTuple{dac::Int64, adc::Int64}}
     line = popfirst!(lines)
     result = let
         m = match(r"^Test Power Reseult = (\d)$", line)
@@ -162,6 +177,9 @@ function parse_power_section!(lines::Base.Iterators.Stateful)::PowerResult
     PowerResult(result_3v3d, result_3v3a, result_n3va, fpga_temp, channelvals, result)
 end
 
+# ==================================
+# Asdtp
+
 """
 Measurement result for asic in asdtp test.
 """
@@ -356,6 +374,9 @@ function parse_recov_section!(lines::Base.Iterators.Stateful)::Union{Bool, Missi
     end
 end
 
+# ==================================
+# Main
+
 """
     parse_slavelog_file(filename::AbstractString)