diff --git a/documents/doxygen/Doxyfile b/documents/doxygen/Doxyfile
index 7e2e4d8d1d6476e01f2f7a063a6bd84538a47975..8d3a2cc18368fcb458942c7b4a0126e19f1daf2a 100644
--- a/documents/doxygen/Doxyfile
+++ b/documents/doxygen/Doxyfile
@@ -48,7 +48,7 @@ PROJECT_NAME           = mcu_reuse_development_module
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2.1
+PROJECT_NUMBER         = 2.2
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -68,7 +68,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = C:/Users/lh/Desktop/myTest/mcu_reuse_development_module-dev/documents
+OUTPUT_DIRECTORY       = ../
 
 # If the CREATE_SUBDIRS tag is set to YES then doxygen will create up to 4096
 # sub-directories (in 2 levels) under the output directory of each output format
@@ -943,7 +943,7 @@ WARN_LOGFILE           =
 # spaces. See also FILE_PATTERNS and EXTENSION_MAPPING
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = C:/Users/lh/Desktop/myTest/mcu_reuse_development_module-dev/drivers
+INPUT                  = ../../src
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
@@ -1570,7 +1570,7 @@ GENERATE_HTMLHELP      = YES
 # written to the html output directory.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-CHM_FILE               = mcu_reuse_development_module2.1.chm
+CHM_FILE               = mcu_reuse_development_module_V2.2.chm
 
 # The HHC_LOCATION tag can be used to specify the location (absolute path
 # including file name) of the HTML help compiler (hhc.exe). If non-empty,
@@ -1578,7 +1578,7 @@ CHM_FILE               = mcu_reuse_development_module2.1.chm
 # The file has to be specified with full path.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-HHC_LOCATION           = "C:/Program Files (x86)/HTML Help Workshop/hhc.exe"
+HHC_LOCATION           = D:/app/html_help_work_shop/hhc.exe
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated
 # (YES) or that it should be included in the main .chm file (NO).
@@ -2753,7 +2753,7 @@ INTERACTIVE_SVG        = NO
 # found. If left blank, it is assumed the dot tool can be found in the path.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_PATH               = "C:/Program Files (x86)/Graphviz2.38/bin/dot.exe"
+DOT_PATH               = "C:/Program Files (x86)/Graphviz/bin/dot.exe"
 
 # The DOTFILE_DIRS tag can be used to specify one or more directories that
 # contain dot files that are included in the documentation (see the \dotfile
diff --git a/documents/mcu_reuse_development_module2.1.chm b/documents/mcu_reuse_development_module2.1.chm
deleted file mode 100644
index df39d30b5f4ac88004f6931f0644fbe0b2eee63b..0000000000000000000000000000000000000000
Binary files a/documents/mcu_reuse_development_module2.1.chm and /dev/null differ
diff --git a/documents/mcu_reuse_development_module_V2.2.chm b/documents/mcu_reuse_development_module_V2.2.chm
new file mode 100644
index 0000000000000000000000000000000000000000..c6a8252b3257f6395cdcc8bee97e9807606285dc
Binary files /dev/null and b/documents/mcu_reuse_development_module_V2.2.chm differ
diff --git a/src/bootloader/bootloader.c b/src/bootloader/bootloader.c
index cc17e646704b0dc47c62305d0cde85b3a7c20dfc..a8ca57e742f099ae5929a857b872b46ef823c9f3 100644
--- a/src/bootloader/bootloader.c
+++ b/src/bootloader/bootloader.c
@@ -28,7 +28,7 @@
  */
 
 /**
- * @defgroup bootloader bootloader
+ * @defgroup bootloader_ bootloader_
  * @{
  */
 
@@ -73,15 +73,6 @@ static bootloader_t bootCtrl; /*!< bootloader管理实例 */
 /* 全局变量-------------------------------------------------------------------*/
 
 /* 私有函数原型---------------------------------------------------------------*/
-/**
- * @defgroup bootloader_local_functions bootloader local functions
- * @{
- */
-
-
-/**
- * @}
- */
 
 /**
  * @defgroup bootloader_global_functions bootloader global functions
diff --git a/src/bootloader/bootloader.h b/src/bootloader/bootloader.h
index 02d6cf463441d07fc451dc1aba8f3bd0353f787f..c6feaec9b6688ad72ba41cde9801b082ed0395b9 100644
--- a/src/bootloader/bootloader.h
+++ b/src/bootloader/bootloader.h
@@ -31,7 +31,7 @@ extern "C" {
  */
 
 /**
- * @addtogroup bootloader
+ * @addtogroup bootloader_
  * @{
  */