diff --git a/.gitignore b/.gitignore
index 64445203..68a24c87 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,14 @@
 *.lst
 *.dep
 
+# Keil MDK - Build/download logs (regenerated by build.bat / download.bat)
+MDK-ARM/build_log.txt
+MDK-ARM/build_log2.txt
+MDK-ARM/download_log.txt
+MDK-ARM/err.txt
+MDK-ARM/out.txt
+MDK-ARM/ret.txt
+
 # Keil MDK - IDE settings (user-specific)
 *.uvoptx
 *.uvguix.*
diff --git a/MDK-ARM/build_log.txt b/MDK-ARM/build_log.txt
deleted file mode 100644
index d1cfe964..00000000
--- a/MDK-ARM/build_log.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-*** Using Compiler 'V5.06 update 7 (build 960)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
-Build target 'STM32F407-Demo'
-".\STM32F407-Demo\STM32F407-Demo.axf" - 0 Error(s), 0 Warning(s).
-Build Time Elapsed:  00:00:09
diff --git a/MDK-ARM/build_log2.txt b/MDK-ARM/build_log2.txt
deleted file mode 100644
index 256ef341..00000000
--- a/MDK-ARM/build_log2.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-*** Using Compiler 'V5.06 update 7 (build 960)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
-Build target 'STM32F407-Demo'
-".\STM32F407-Demo\STM32F407-Demo.axf" - 0 Error(s), 0 Warning(s).
-Build Time Elapsed:  00:00:03
diff --git a/MDK-ARM/download_log.txt b/MDK-ARM/download_log.txt
deleted file mode 100644
index 4cc5939a..00000000
--- a/MDK-ARM/download_log.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-Load "D:\\Code\\DTU ³ÌÐò\\STM32F4-Base\\MDK-ARM\\STM32F407-Demo\\STM32F407-Demo.axf"
-Erase Done.Programming Done.Verify OK.Application running ...
-Flash Load finished at 15:05:40
diff --git a/MDK-ARM/err.txt b/MDK-ARM/err.txt
deleted file mode 100644
index e69de29b..00000000
diff --git a/MDK-ARM/out.txt b/MDK-ARM/out.txt
deleted file mode 100644
index e69de29b..00000000
diff --git a/MDK-ARM/ret.txt b/MDK-ARM/ret.txt
deleted file mode 100644
index e69de29b..00000000