diff --git a/GccApplication3.atsln b/GccApplication3.atsln
new file mode 100644
index 0000000..dcbc6c4
--- /dev/null
+++ b/GccApplication3.atsln
@@ -0,0 +1,20 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Atmel Studio Solution File, Format Version 11.00
+Project("{54F91283-7BC4-4236-8FF9-10F437C3AD48}") = "GccApplication3", "GccApplication3.cproj", "{94BBCABE-3E5B-448F-A40B-2B08DEF16444}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|AVR = Debug|AVR
+		Release|AVR = Release|AVR
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{94BBCABE-3E5B-448F-A40B-2B08DEF16444}.Debug|AVR.ActiveCfg = Debug|AVR
+		{94BBCABE-3E5B-448F-A40B-2B08DEF16444}.Debug|AVR.Build.0 = Debug|AVR
+		{94BBCABE-3E5B-448F-A40B-2B08DEF16444}.Release|AVR.ActiveCfg = Release|AVR
+		{94BBCABE-3E5B-448F-A40B-2B08DEF16444}.Release|AVR.Build.0 = Release|AVR
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/GccApplication3.atsuo b/GccApplication3.atsuo
new file mode 100644
index 0000000..2b0c5e1
Binary files /dev/null and b/GccApplication3.atsuo differ
diff --git a/GccApplication3.cproj b/GccApplication3.cproj
index f37922e..701204d 100644
--- a/GccApplication3.cproj
+++ b/GccApplication3.cproj
@@ -99,6 +99,15 @@
     <Compile Include="calculator.c">
       <SubType>compile</SubType>
     </Compile>
+    <Compile Include="calculator.h">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="func.c">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="func.h">
+      <SubType>compile</SubType>
+    </Compile>
     <Compile Include="keyboard.c">
       <SubType>compile</SubType>
     </Compile>
@@ -108,6 +117,12 @@
     <Compile Include="main.c">
       <SubType>compile</SubType>
     </Compile>
+    <Compile Include="spi_master.c">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="spi_master.h">
+      <SubType>compile</SubType>
+    </Compile>
     <Compile Include="timer.c">
       <SubType>compile</SubType>
     </Compile>