diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/.config b/bsp/lpc55sxx/lpc55s69_nxp_evk/.config
index 65c0862ad6..4e48518f54 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/.config
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/.config
@@ -116,38 +116,15 @@ CONFIG_FINSH_ARG_MAX=10
 #
 # Device virtual file system
 #
-CONFIG_RT_USING_DFS=y
-CONFIG_DFS_USING_WORKDIR=y
-CONFIG_DFS_FILESYSTEMS_MAX=4
-CONFIG_DFS_FILESYSTEM_TYPES_MAX=4
-CONFIG_DFS_FD_MAX=16
-# CONFIG_RT_USING_DFS_MNTTABLE is not set
-CONFIG_RT_USING_DFS_ELMFAT=y
-
-#
-# elm-chan's FatFs, Generic FAT Filesystem Module
-#
-CONFIG_RT_DFS_ELM_CODE_PAGE=437
-CONFIG_RT_DFS_ELM_WORD_ACCESS=y
+# CONFIG_RT_USING_DFS is not set
 # CONFIG_RT_DFS_ELM_USE_LFN_0 is not set
 # CONFIG_RT_DFS_ELM_USE_LFN_1 is not set
 # CONFIG_RT_DFS_ELM_USE_LFN_2 is not set
-CONFIG_RT_DFS_ELM_USE_LFN_3=y
-CONFIG_RT_DFS_ELM_USE_LFN=3
-CONFIG_RT_DFS_ELM_LFN_UNICODE_0=y
+# CONFIG_RT_DFS_ELM_USE_LFN_3 is not set
+# CONFIG_RT_DFS_ELM_LFN_UNICODE_0 is not set
 # CONFIG_RT_DFS_ELM_LFN_UNICODE_1 is not set
 # CONFIG_RT_DFS_ELM_LFN_UNICODE_2 is not set
 # CONFIG_RT_DFS_ELM_LFN_UNICODE_3 is not set
-CONFIG_RT_DFS_ELM_LFN_UNICODE=0
-CONFIG_RT_DFS_ELM_MAX_LFN=255
-CONFIG_RT_DFS_ELM_DRIVES=2
-CONFIG_RT_DFS_ELM_MAX_SECTOR_SIZE=512
-# CONFIG_RT_DFS_ELM_USE_ERASE is not set
-CONFIG_RT_DFS_ELM_REENTRANT=y
-CONFIG_RT_DFS_ELM_MUTEX_TIMEOUT=3000
-CONFIG_RT_USING_DFS_DEVFS=y
-# CONFIG_RT_USING_DFS_ROMFS is not set
-# CONFIG_RT_USING_DFS_RAMFS is not set
 
 #
 # Device Drivers
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/project.uvoptx b/bsp/lpc55sxx/lpc55s69_nxp_evk/project.uvoptx
index df9b986715..2069450d61 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/project.uvoptx
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/project.uvoptx
@@ -198,7 +198,7 @@
 
   <Group>
     <GroupName>Applications</GroupName>
-    <tvExp>1</tvExp>
+    <tvExp>0</tvExp>
     <tvExpOptDlg>0</tvExpOptDlg>
     <cbSel>0</cbSel>
     <RteFlg>0</RteFlg>
@@ -229,18 +229,6 @@
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\libcpu\arm\common\backtrace.c</PathWithFileName>
-      <FilenameWithoutPath>backtrace.c</FilenameWithoutPath>
-      <RteFlg>0</RteFlg>
-      <bShared>0</bShared>
-    </File>
-    <File>
-      <GroupNumber>2</GroupNumber>
-      <FileNumber>3</FileNumber>
-      <FileType>1</FileType>
-      <tvExp>0</tvExp>
-      <tvExpOptDlg>0</tvExpOptDlg>
-      <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\libcpu\arm\common\showmem.c</PathWithFileName>
       <FilenameWithoutPath>showmem.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
@@ -248,7 +236,7 @@
     </File>
     <File>
       <GroupNumber>2</GroupNumber>
-      <FileNumber>4</FileNumber>
+      <FileNumber>3</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -260,19 +248,19 @@
     </File>
     <File>
       <GroupNumber>2</GroupNumber>
-      <FileNumber>5</FileNumber>
-      <FileType>2</FileType>
+      <FileNumber>4</FileNumber>
+      <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\libcpu\arm\cortex-m4\context_rvds.S</PathWithFileName>
-      <FilenameWithoutPath>context_rvds.S</FilenameWithoutPath>
+      <PathWithFileName>..\..\..\libcpu\arm\common\backtrace.c</PathWithFileName>
+      <FilenameWithoutPath>backtrace.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
     <File>
       <GroupNumber>2</GroupNumber>
-      <FileNumber>6</FileNumber>
+      <FileNumber>5</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -282,6 +270,18 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
+    <File>
+      <GroupNumber>2</GroupNumber>
+      <FileNumber>6</FileNumber>
+      <FileType>2</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\..\..\libcpu\arm\cortex-m4\context_rvds.S</PathWithFileName>
+      <FilenameWithoutPath>context_rvds.S</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
   </Group>
 
   <Group>
@@ -321,30 +321,6 @@
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\components\drivers\src\ringbuffer.c</PathWithFileName>
-      <FilenameWithoutPath>ringbuffer.c</FilenameWithoutPath>
-      <RteFlg>0</RteFlg>
-      <bShared>0</bShared>
-    </File>
-    <File>
-      <GroupNumber>3</GroupNumber>
-      <FileNumber>10</FileNumber>
-      <FileType>1</FileType>
-      <tvExp>0</tvExp>
-      <tvExpOptDlg>0</tvExpOptDlg>
-      <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\components\drivers\src\ringblk_buf.c</PathWithFileName>
-      <FilenameWithoutPath>ringblk_buf.c</FilenameWithoutPath>
-      <RteFlg>0</RteFlg>
-      <bShared>0</bShared>
-    </File>
-    <File>
-      <GroupNumber>3</GroupNumber>
-      <FileNumber>11</FileNumber>
-      <FileType>1</FileType>
-      <tvExp>0</tvExp>
-      <tvExpOptDlg>0</tvExpOptDlg>
-      <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\components\drivers\src\waitqueue.c</PathWithFileName>
       <FilenameWithoutPath>waitqueue.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
@@ -352,31 +328,7 @@
     </File>
     <File>
       <GroupNumber>3</GroupNumber>
-      <FileNumber>12</FileNumber>
-      <FileType>1</FileType>
-      <tvExp>0</tvExp>
-      <tvExpOptDlg>0</tvExpOptDlg>
-      <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\components\drivers\src\pipe.c</PathWithFileName>
-      <FilenameWithoutPath>pipe.c</FilenameWithoutPath>
-      <RteFlg>0</RteFlg>
-      <bShared>0</bShared>
-    </File>
-    <File>
-      <GroupNumber>3</GroupNumber>
-      <FileNumber>13</FileNumber>
-      <FileType>1</FileType>
-      <tvExp>0</tvExp>
-      <tvExpOptDlg>0</tvExpOptDlg>
-      <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\components\drivers\src\workqueue.c</PathWithFileName>
-      <FilenameWithoutPath>workqueue.c</FilenameWithoutPath>
-      <RteFlg>0</RteFlg>
-      <bShared>0</bShared>
-    </File>
-    <File>
-      <GroupNumber>3</GroupNumber>
-      <FileNumber>14</FileNumber>
+      <FileNumber>10</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -388,7 +340,19 @@
     </File>
     <File>
       <GroupNumber>3</GroupNumber>
-      <FileNumber>15</FileNumber>
+      <FileNumber>11</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\..\..\components\drivers\src\pipe.c</PathWithFileName>
+      <FilenameWithoutPath>pipe.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>3</GroupNumber>
+      <FileNumber>12</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -398,6 +362,42 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
+    <File>
+      <GroupNumber>3</GroupNumber>
+      <FileNumber>13</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\..\..\components\drivers\src\ringbuffer.c</PathWithFileName>
+      <FilenameWithoutPath>ringbuffer.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>3</GroupNumber>
+      <FileNumber>14</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\..\..\components\drivers\src\workqueue.c</PathWithFileName>
+      <FilenameWithoutPath>workqueue.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>3</GroupNumber>
+      <FileNumber>15</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\..\..\components\drivers\src\ringblk_buf.c</PathWithFileName>
+      <FilenameWithoutPath>ringblk_buf.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
   </Group>
 
   <Group>
@@ -549,6 +549,18 @@
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
+      <PathWithFileName>..\..\..\src\irq.c</PathWithFileName>
+      <FilenameWithoutPath>irq.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>6</GroupNumber>
+      <FileNumber>27</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
       <PathWithFileName>..\..\..\src\object.c</PathWithFileName>
       <FilenameWithoutPath>object.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
@@ -556,7 +568,19 @@
     </File>
     <File>
       <GroupNumber>6</GroupNumber>
-      <FileNumber>27</FileNumber>
+      <FileNumber>28</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\..\..\src\kservice.c</PathWithFileName>
+      <FilenameWithoutPath>kservice.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>6</GroupNumber>
+      <FileNumber>29</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -566,30 +590,6 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
-    <File>
-      <GroupNumber>6</GroupNumber>
-      <FileNumber>28</FileNumber>
-      <FileType>1</FileType>
-      <tvExp>0</tvExp>
-      <tvExpOptDlg>0</tvExpOptDlg>
-      <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\src\thread.c</PathWithFileName>
-      <FilenameWithoutPath>thread.c</FilenameWithoutPath>
-      <RteFlg>0</RteFlg>
-      <bShared>0</bShared>
-    </File>
-    <File>
-      <GroupNumber>6</GroupNumber>
-      <FileNumber>29</FileNumber>
-      <FileType>1</FileType>
-      <tvExp>0</tvExp>
-      <tvExpOptDlg>0</tvExpOptDlg>
-      <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\src\device.c</PathWithFileName>
-      <FilenameWithoutPath>device.c</FilenameWithoutPath>
-      <RteFlg>0</RteFlg>
-      <bShared>0</bShared>
-    </File>
     <File>
       <GroupNumber>6</GroupNumber>
       <FileNumber>30</FileNumber>
@@ -597,8 +597,8 @@
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\src\clock.c</PathWithFileName>
-      <FilenameWithoutPath>clock.c</FilenameWithoutPath>
+      <PathWithFileName>..\..\..\src\idle.c</PathWithFileName>
+      <FilenameWithoutPath>idle.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
@@ -609,8 +609,8 @@
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\src\idle.c</PathWithFileName>
-      <FilenameWithoutPath>idle.c</FilenameWithoutPath>
+      <PathWithFileName>..\..\..\src\mempool.c</PathWithFileName>
+      <FilenameWithoutPath>mempool.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
@@ -633,8 +633,8 @@
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\src\timer.c</PathWithFileName>
-      <FilenameWithoutPath>timer.c</FilenameWithoutPath>
+      <PathWithFileName>..\..\..\src\clock.c</PathWithFileName>
+      <FilenameWithoutPath>clock.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
@@ -645,8 +645,8 @@
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\src\kservice.c</PathWithFileName>
-      <FilenameWithoutPath>kservice.c</FilenameWithoutPath>
+      <PathWithFileName>..\..\..\src\device.c</PathWithFileName>
+      <FilenameWithoutPath>device.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
@@ -669,8 +669,8 @@
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\src\mempool.c</PathWithFileName>
-      <FilenameWithoutPath>mempool.c</FilenameWithoutPath>
+      <PathWithFileName>..\..\..\src\timer.c</PathWithFileName>
+      <FilenameWithoutPath>timer.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
@@ -681,8 +681,8 @@
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\..\..\src\irq.c</PathWithFileName>
-      <FilenameWithoutPath>irq.c</FilenameWithoutPath>
+      <PathWithFileName>..\..\..\src\thread.c</PathWithFileName>
+      <FilenameWithoutPath>thread.c</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/project.uvprojx b/bsp/lpc55sxx/lpc55s69_nxp_evk/project.uvprojx
index 6ce9cac461..ad26c305f2 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/project.uvprojx
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/project.uvprojx
@@ -10,7 +10,7 @@
       <TargetName>rtthread-lpc55s6x</TargetName>
       <ToolsetNumber>0x4</ToolsetNumber>
       <ToolsetName>ARM-ADS</ToolsetName>
-      <pCCUsed>6160000::V6.16::ARMCLANG</pCCUsed>
+      <pCCUsed>6120000::V6.12::.\ARMCLANG</pCCUsed>
       <uAC6>1</uAC6>
       <TargetOption>
         <TargetCommonOption>
@@ -393,11 +393,6 @@
         <Group>
           <GroupName>CPU</GroupName>
           <Files>
-            <File>
-              <FileName>backtrace.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\libcpu\arm\common\backtrace.c</FilePath>
-            </File>
             <File>
               <FileName>showmem.c</FileName>
               <FileType>1</FileType>
@@ -409,15 +404,20 @@
               <FilePath>..\..\..\libcpu\arm\common\div0.c</FilePath>
             </File>
             <File>
-              <FileName>context_rvds.S</FileName>
-              <FileType>2</FileType>
-              <FilePath>..\..\..\libcpu\arm\cortex-m4\context_rvds.S</FilePath>
+              <FileName>backtrace.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\libcpu\arm\common\backtrace.c</FilePath>
             </File>
             <File>
               <FileName>cpuport.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\libcpu\arm\cortex-m4\cpuport.c</FilePath>
             </File>
+            <File>
+              <FileName>context_rvds.S</FileName>
+              <FileType>2</FileType>
+              <FilePath>..\..\..\libcpu\arm\cortex-m4\context_rvds.S</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -433,41 +433,41 @@
               <FileType>1</FileType>
               <FilePath>..\..\..\components\drivers\serial\serial.c</FilePath>
             </File>
-            <File>
-              <FileName>ringbuffer.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\src\ringbuffer.c</FilePath>
-            </File>
-            <File>
-              <FileName>ringblk_buf.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\src\ringblk_buf.c</FilePath>
-            </File>
             <File>
               <FileName>waitqueue.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\components\drivers\src\waitqueue.c</FilePath>
             </File>
-            <File>
-              <FileName>pipe.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\src\pipe.c</FilePath>
-            </File>
-            <File>
-              <FileName>workqueue.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\src\workqueue.c</FilePath>
-            </File>
             <File>
               <FileName>completion.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\components\drivers\src\completion.c</FilePath>
             </File>
+            <File>
+              <FileName>pipe.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\drivers\src\pipe.c</FilePath>
+            </File>
             <File>
               <FileName>dataqueue.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\components\drivers\src\dataqueue.c</FilePath>
             </File>
+            <File>
+              <FileName>ringbuffer.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\drivers\src\ringbuffer.c</FilePath>
+            </File>
+            <File>
+              <FileName>workqueue.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\drivers\src\workqueue.c</FilePath>
+            </File>
+            <File>
+              <FileName>ringblk_buf.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\drivers\src\ringblk_buf.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -533,55 +533,30 @@
         <Group>
           <GroupName>Kernel</GroupName>
           <Files>
+            <File>
+              <FileName>irq.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\irq.c</FilePath>
+            </File>
             <File>
               <FileName>object.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\src\object.c</FilePath>
             </File>
-            <File>
-              <FileName>ipc.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\src\ipc.c</FilePath>
-            </File>
-            <File>
-              <FileName>thread.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\src\thread.c</FilePath>
-            </File>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\src\device.c</FilePath>
-            </File>
-            <File>
-              <FileName>clock.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\src\clock.c</FilePath>
-            </File>
-            <File>
-              <FileName>idle.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\src\idle.c</FilePath>
-            </File>
-            <File>
-              <FileName>scheduler.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\src\scheduler.c</FilePath>
-            </File>
-            <File>
-              <FileName>timer.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\src\timer.c</FilePath>
-            </File>
             <File>
               <FileName>kservice.c</FileName>
               <FileType>1</FileType>
               <FilePath>..\..\..\src\kservice.c</FilePath>
             </File>
             <File>
-              <FileName>mem.c</FileName>
+              <FileName>ipc.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\..\src\mem.c</FilePath>
+              <FilePath>..\..\..\src\ipc.c</FilePath>
+            </File>
+            <File>
+              <FileName>idle.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\idle.c</FilePath>
             </File>
             <File>
               <FileName>mempool.c</FileName>
@@ -589,9 +564,34 @@
               <FilePath>..\..\..\src\mempool.c</FilePath>
             </File>
             <File>
-              <FileName>irq.c</FileName>
+              <FileName>scheduler.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\..\src\irq.c</FilePath>
+              <FilePath>..\..\..\src\scheduler.c</FilePath>
+            </File>
+            <File>
+              <FileName>clock.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\clock.c</FilePath>
+            </File>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+            <File>
+              <FileName>mem.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\mem.c</FilePath>
+            </File>
+            <File>
+              <FileName>timer.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\timer.c</FilePath>
+            </File>
+            <File>
+              <FileName>thread.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\thread.c</FilePath>
             </File>
             <File>
               <FileName>components.c</FileName>
diff --git a/bsp/lpc55sxx/lpc55s69_nxp_evk/rtconfig.h b/bsp/lpc55sxx/lpc55s69_nxp_evk/rtconfig.h
index 66b06db132..041693aa1c 100644
--- a/bsp/lpc55sxx/lpc55s69_nxp_evk/rtconfig.h
+++ b/bsp/lpc55sxx/lpc55s69_nxp_evk/rtconfig.h
@@ -77,27 +77,6 @@
 
 /* Device virtual file system */
 
-#define RT_USING_DFS
-#define DFS_USING_WORKDIR
-#define DFS_FILESYSTEMS_MAX 4
-#define DFS_FILESYSTEM_TYPES_MAX 4
-#define DFS_FD_MAX 16
-#define RT_USING_DFS_ELMFAT
-
-/* elm-chan's FatFs, Generic FAT Filesystem Module */
-
-#define RT_DFS_ELM_CODE_PAGE 437
-#define RT_DFS_ELM_WORD_ACCESS
-#define RT_DFS_ELM_USE_LFN_3
-#define RT_DFS_ELM_USE_LFN 3
-#define RT_DFS_ELM_LFN_UNICODE_0
-#define RT_DFS_ELM_LFN_UNICODE 0
-#define RT_DFS_ELM_MAX_LFN 255
-#define RT_DFS_ELM_DRIVES 2
-#define RT_DFS_ELM_MAX_SECTOR_SIZE 512
-#define RT_DFS_ELM_REENTRANT
-#define RT_DFS_ELM_MUTEX_TIMEOUT 3000
-#define RT_USING_DFS_DEVFS
 
 /* Device Drivers */