diff --git a/CHIRP/board/app_config.h b/CHIRP/board/app_config.h
index e7f5d0b..0f5cfcd 100644
--- a/CHIRP/board/app_config.h
+++ b/CHIRP/board/app_config.h
@@ -63,10 +63,10 @@
 // #define	 CHIRP_SENSOR_FW_INIT_FUNC	ch101_gpr_narrow_init
 	
 	/* CH101 GPR SR - general purpose rangefinding, short range */
-#define	 CHIRP_SENSOR_FW_INIT_FUNC	ch101_gpr_sr_init
+// #define	 CHIRP_SENSOR_FW_INIT_FUNC	ch101_gpr_sr_init
  
 	/* CH101 GPR SR NARROW - general purpose rangefinding, short range, narrow FoV */ 
-//  #define	 CHIRP_SENSOR_FW_INIT_FUNC	ch101_gpr_sr_narrow_init
+ #define	 CHIRP_SENSOR_FW_INIT_FUNC	ch101_gpr_sr_narrow_init
 
 	/* CH201 GPRMT - general purpose rangefinding / multi threshold */
 // #define	 CHIRP_SENSOR_FW_INIT_FUNC	ch201_gprmt_init	
diff --git a/XLSW_SONIC/Keil_project/Project.uvoptx b/XLSW_SONIC/Keil_project/Project.uvoptx
index 3df349f..3b0e2a8 100644
--- a/XLSW_SONIC/Keil_project/Project.uvoptx
+++ b/XLSW_SONIC/Keil_project/Project.uvoptx
@@ -276,7 +276,7 @@
       <GroupNumber>1</GroupNumber>
       <FileNumber>2</FileNumber>
       <FileType>1</FileType>
-      <tvExp>1</tvExp>
+      <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
       <PathWithFileName>..\main.c</PathWithFileName>
@@ -672,7 +672,7 @@
       <GroupNumber>7</GroupNumber>
       <FileNumber>31</FileNumber>
       <FileType>1</FileType>
-      <tvExp>1</tvExp>
+      <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
       <PathWithFileName>..\..\CHIRP\drivers\src\ch_api.c</PathWithFileName>
@@ -776,6 +776,30 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
+    <File>
+      <GroupNumber>7</GroupNumber>
+      <FileNumber>40</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\..\CHIRP\drivers\src\ch101_gpr_sr_narrow.c</PathWithFileName>
+      <FilenameWithoutPath>ch101_gpr_sr_narrow.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>7</GroupNumber>
+      <FileNumber>41</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\..\CHIRP\drivers\src\ch101_gpr_sr_narrow_fw.c</PathWithFileName>
+      <FilenameWithoutPath>ch101_gpr_sr_narrow_fw.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
   </Group>
 
   <Group>
@@ -786,7 +810,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>40</FileNumber>
+      <FileNumber>42</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
diff --git a/XLSW_SONIC/Keil_project/Project.uvprojx b/XLSW_SONIC/Keil_project/Project.uvprojx
index dade7f7..5ceffe8 100644
--- a/XLSW_SONIC/Keil_project/Project.uvprojx
+++ b/XLSW_SONIC/Keil_project/Project.uvprojx
@@ -608,6 +608,16 @@
               <FileType>1</FileType>
               <FilePath>..\..\CHIRP\drivers\src\ch101_gpr_sr_fw.c</FilePath>
             </File>
+            <File>
+              <FileName>ch101_gpr_sr_narrow.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\CHIRP\drivers\src\ch101_gpr_sr_narrow.c</FilePath>
+            </File>
+            <File>
+              <FileName>ch101_gpr_sr_narrow_fw.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\CHIRP\drivers\src\ch101_gpr_sr_narrow_fw.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>