diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
index 263d9f6..79227f7 100644
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@@ -4,6 +4,11 @@
             "name": "nrf52833_xxaa",
             "includePath": [
                 "libznordic\\include",
+                "sdk/external/fatfs/src/",
+                "sdk/external/fatfs/src/",
+                "sdk/external/fatfs/port/",
+                "sdk/components/libraries/block_dev/sdc/",
+                "sdk/components/libraries/block_dev/",
                 "sdk\\config",
                 "app\\src",
                 "sdk\\components",
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 6d86b83..876ea80 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -42,6 +42,10 @@
         "ble_srv_common.h": "c",
         "zdatachannel_service.h": "c",
         "ble_link_ctx_manager.h": "c",
-        "nrf_drv_saadc.h": "c"
+        "nrf_drv_saadc.h": "c",
+        "project_cfg.h": "c",
+        "nrf_block_dev_sdc.h": "c",
+        "nrf_drv_pwm.h": "c",
+        "nrfx_config.h": "c"
     }
 }
\ No newline at end of file
diff --git a/app/app.uvoptx b/app/app.uvoptx
index 15fd958..b13ae18 100644
--- a/app/app.uvoptx
+++ b/app/app.uvoptx
@@ -823,6 +823,18 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
+    <File>
+      <GroupNumber>7</GroupNumber>
+      <FileNumber>35</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\sdk\modules\nrfx\drivers\src\nrfx_pwm.c</PathWithFileName>
+      <FilenameWithoutPath>nrfx_pwm.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
   </Group>
 
   <Group>
@@ -833,7 +845,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>35</FileNumber>
+      <FileNumber>36</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -845,7 +857,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>36</FileNumber>
+      <FileNumber>37</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -857,7 +869,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>37</FileNumber>
+      <FileNumber>38</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -869,7 +881,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>38</FileNumber>
+      <FileNumber>39</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -881,7 +893,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>39</FileNumber>
+      <FileNumber>40</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -893,7 +905,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>40</FileNumber>
+      <FileNumber>41</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -905,7 +917,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>41</FileNumber>
+      <FileNumber>42</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -917,7 +929,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>42</FileNumber>
+      <FileNumber>43</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -929,7 +941,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>43</FileNumber>
+      <FileNumber>44</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -941,7 +953,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>44</FileNumber>
+      <FileNumber>45</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -953,7 +965,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>45</FileNumber>
+      <FileNumber>46</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -965,7 +977,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>46</FileNumber>
+      <FileNumber>47</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -977,7 +989,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>47</FileNumber>
+      <FileNumber>48</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -989,7 +1001,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>48</FileNumber>
+      <FileNumber>49</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1001,7 +1013,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>49</FileNumber>
+      <FileNumber>50</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1013,7 +1025,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>50</FileNumber>
+      <FileNumber>51</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1025,7 +1037,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>51</FileNumber>
+      <FileNumber>52</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1037,7 +1049,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>52</FileNumber>
+      <FileNumber>53</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1049,7 +1061,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>53</FileNumber>
+      <FileNumber>54</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1061,7 +1073,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>54</FileNumber>
+      <FileNumber>55</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1073,7 +1085,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>55</FileNumber>
+      <FileNumber>56</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1085,7 +1097,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>56</FileNumber>
+      <FileNumber>57</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1097,7 +1109,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>57</FileNumber>
+      <FileNumber>58</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1109,7 +1121,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>58</FileNumber>
+      <FileNumber>59</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1121,7 +1133,7 @@
     </File>
     <File>
       <GroupNumber>8</GroupNumber>
-      <FileNumber>59</FileNumber>
+      <FileNumber>60</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1131,17 +1143,41 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
+    <File>
+      <GroupNumber>8</GroupNumber>
+      <FileNumber>61</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\sdk\components\libraries\block_dev\sdc\nrf_block_dev_sdc.c</PathWithFileName>
+      <FilenameWithoutPath>nrf_block_dev_sdc.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>8</GroupNumber>
+      <FileNumber>62</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\sdk\components\libraries\sdcard\app_sdcard.c</PathWithFileName>
+      <FilenameWithoutPath>app_sdcard.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
   </Group>
 
   <Group>
     <GroupName>nRF_Log</GroupName>
-    <tvExp>1</tvExp>
+    <tvExp>0</tvExp>
     <tvExpOptDlg>0</tvExpOptDlg>
     <cbSel>0</cbSel>
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>9</GroupNumber>
-      <FileNumber>60</FileNumber>
+      <FileNumber>63</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1153,7 +1189,7 @@
     </File>
     <File>
       <GroupNumber>9</GroupNumber>
-      <FileNumber>61</FileNumber>
+      <FileNumber>64</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1165,7 +1201,7 @@
     </File>
     <File>
       <GroupNumber>9</GroupNumber>
-      <FileNumber>62</FileNumber>
+      <FileNumber>65</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1177,7 +1213,7 @@
     </File>
     <File>
       <GroupNumber>9</GroupNumber>
-      <FileNumber>63</FileNumber>
+      <FileNumber>66</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1189,7 +1225,7 @@
     </File>
     <File>
       <GroupNumber>9</GroupNumber>
-      <FileNumber>64</FileNumber>
+      <FileNumber>67</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1201,7 +1237,7 @@
     </File>
     <File>
       <GroupNumber>9</GroupNumber>
-      <FileNumber>65</FileNumber>
+      <FileNumber>68</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1221,7 +1257,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>10</GroupNumber>
-      <FileNumber>66</FileNumber>
+      <FileNumber>69</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1233,7 +1269,7 @@
     </File>
     <File>
       <GroupNumber>10</GroupNumber>
-      <FileNumber>67</FileNumber>
+      <FileNumber>70</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1245,7 +1281,7 @@
     </File>
     <File>
       <GroupNumber>10</GroupNumber>
-      <FileNumber>68</FileNumber>
+      <FileNumber>71</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1265,7 +1301,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>11</GroupNumber>
-      <FileNumber>69</FileNumber>
+      <FileNumber>72</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1277,7 +1313,7 @@
     </File>
     <File>
       <GroupNumber>11</GroupNumber>
-      <FileNumber>70</FileNumber>
+      <FileNumber>73</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1289,7 +1325,7 @@
     </File>
     <File>
       <GroupNumber>11</GroupNumber>
-      <FileNumber>71</FileNumber>
+      <FileNumber>74</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1309,7 +1345,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>12</GroupNumber>
-      <FileNumber>72</FileNumber>
+      <FileNumber>75</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1322,6 +1358,38 @@
   </Group>
 
   <Group>
+    <GroupName>FATFS</GroupName>
+    <tvExp>1</tvExp>
+    <tvExpOptDlg>0</tvExpOptDlg>
+    <cbSel>0</cbSel>
+    <RteFlg>0</RteFlg>
+    <File>
+      <GroupNumber>13</GroupNumber>
+      <FileNumber>76</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\sdk\external\fatfs\port\diskio_blkdev.c</PathWithFileName>
+      <FilenameWithoutPath>diskio_blkdev.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>13</GroupNumber>
+      <FileNumber>77</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\sdk\external\fatfs\src\ff.c</PathWithFileName>
+      <FilenameWithoutPath>ff.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+  </Group>
+
+  <Group>
     <GroupName>::CMSIS</GroupName>
     <tvExp>0</tvExp>
     <tvExpOptDlg>0</tvExpOptDlg>
diff --git a/app/app.uvprojx b/app/app.uvprojx
index 2136e33..17b1940 100644
--- a/app/app.uvprojx
+++ b/app/app.uvprojx
@@ -339,7 +339,7 @@
               <MiscControls>--reduce_paths --diag_suppress=1295 --diag_suppress=1</MiscControls>
               <Define>APP_TIMER_V2 APP_TIMER_V2_RTC1_ENABLED BOARD_PCA10100 CONFIG_GPIO_AS_PINRESET FLOAT_ABI_HARD NRF52833_XXAA NRF_SD_BLE_API_VERSION=7 S140 SOFTDEVICE_PRESENT __HEAP_SIZE=2048 __STACK_SIZE=2048</Define>
               <Undefine></Undefine>
-              <IncludePath>..\sdk\config;..\sdk\components;..\sdk\components\ble\ble_advertising;..\sdk\components\ble\ble_dtm;..\sdk\components\ble\ble_link_ctx_manager;..\sdk\components\ble\ble_racp;..\sdk\components\ble\ble_services\ble_ancs_c;..\sdk\components\ble\ble_services\ble_ans_c;..\sdk\components\ble\ble_services\ble_bas;..\sdk\components\ble\ble_services\ble_bas_c;..\sdk\components\ble\ble_services\ble_cscs;..\sdk\components\ble\ble_services\ble_cts_c;..\sdk\components\ble\ble_services\ble_dfu;..\sdk\components\ble\ble_services\ble_dis;..\sdk\components\ble\ble_services\ble_gls;..\sdk\components\ble\ble_services\ble_hids;..\sdk\components\ble\ble_services\ble_hrs;..\sdk\components\ble\ble_services\ble_hrs_c;..\sdk\components\ble\ble_services\ble_hts;..\sdk\components\ble\ble_services\ble_ias;..\sdk\components\ble\ble_services\ble_ias_c;..\sdk\components\ble\ble_services\ble_lbs;..\sdk\components\ble\ble_services\ble_lbs_c;..\sdk\components\ble\ble_services\ble_lls;..\sdk\components\ble\ble_services\ble_nus;..\sdk\components\ble\ble_services\ble_nus_c;..\sdk\components\ble\ble_services\ble_rscs;..\sdk\components\ble\ble_services\ble_rscs_c;..\sdk\components\ble\ble_services\ble_tps;..\sdk\components\ble\common;..\sdk\components\ble\nrf_ble_gatt;..\sdk\components\ble\nrf_ble_qwr;..\sdk\components\ble\peer_manager;..\sdk\components\boards;..\sdk\components\libraries\atomic;..\sdk\components\libraries\atomic_fifo;..\sdk\components\libraries\atomic_flags;..\sdk\components\libraries\balloc;..\sdk\components\libraries\bootloader\ble_dfu;..\sdk\components\libraries\bsp;..\sdk\components\libraries\button;..\sdk\components\libraries\cli;..\sdk\components\libraries\crc16;..\sdk\components\libraries\crc32;..\sdk\components\libraries\crypto;..\sdk\components\libraries\csense;..\sdk\components\libraries\csense_drv;..\sdk\components\libraries\delay;..\sdk\components\libraries\ecc;..\sdk\components\libraries\experimental_section_vars;..\sdk\components\libraries\experimental_task_manager;..\sdk\components\libraries\fds;..\sdk\components\libraries\fifo;..\sdk\components\libraries\fstorage;..\sdk\components\libraries\gfx;..\sdk\components\libraries\gpiote;..\sdk\components\libraries\hardfault;..\sdk\components\libraries\hci;..\sdk\components\libraries\led_softblink;..\sdk\components\libraries\log;..\sdk\components\libraries\log\src;..\sdk\components\libraries\low_power_pwm;..\sdk\components\libraries\mem_manager;..\sdk\components\libraries\memobj;..\sdk\components\libraries\mpu;..\sdk\components\libraries\mutex;..\sdk\components\libraries\pwm;..\sdk\components\libraries\pwr_mgmt;..\sdk\components\libraries\queue;..\sdk\components\libraries\ringbuf;..\sdk\components\libraries\scheduler;..\sdk\components\libraries\sdcard;..\sdk\components\libraries\slip;..\sdk\components\libraries\sortlist;..\sdk\components\libraries\spi_mngr;..\sdk\components\libraries\stack_guard;..\sdk\components\libraries\strerror;..\sdk\components\libraries\svc;..\sdk\components\libraries\timer;..\sdk\components\libraries\twi_mngr;..\sdk\components\libraries\twi_sensor;..\sdk\components\libraries\uart;..\sdk\components\libraries\usbd;..\sdk\components\libraries\usbd\class\audio;..\sdk\components\libraries\usbd\class\cdc;..\sdk\components\libraries\usbd\class\cdc\acm;..\sdk\components\libraries\usbd\class\hid;..\sdk\components\libraries\usbd\class\hid\generic;..\sdk\components\libraries\usbd\class\hid\kbd;..\sdk\components\libraries\usbd\class\hid\mouse;..\sdk\components\libraries\usbd\class\msc;..\sdk\components\libraries\util;..\sdk\components\nfc\ndef\conn_hand_parser;..\sdk\components\nfc\ndef\conn_hand_parser\ac_rec_parser;..\sdk\components\nfc\ndef\conn_hand_parser\ble_oob_advdata_parser;..\sdk\components\nfc\ndef\conn_hand_parser\le_oob_rec_parser;..\sdk\components\nfc\ndef\connection_handover\ac_rec;..\sdk\components\nfc\ndef\connection_handover\ble_oob_advdata;..\sdk\components\nfc\ndef\connection_handover\ble_pair_lib;..\sdk\components\nfc\ndef\connection_handover\ble_pair_msg;..\sdk\components\nfc\ndef\connection_handover\common;..\sdk\components\nfc\ndef\connection_handover\ep_oob_rec;..\sdk\components\nfc\ndef\connection_handover\hs_rec;..\sdk\components\nfc\ndef\connection_handover\le_oob_rec;..\sdk\components\nfc\ndef\generic\message;..\sdk\components\nfc\ndef\generic\record;..\sdk\components\nfc\ndef\launchapp;..\sdk\components\nfc\ndef\parser\message;..\sdk\components\nfc\ndef\parser\record;..\sdk\components\nfc\ndef\text;..\sdk\components\nfc\ndef\uri;..\sdk\components\nfc\platform;..\sdk\components\nfc\t2t_lib;..\sdk\components\nfc\t2t_parser;..\sdk\components\nfc\t4t_lib;..\sdk\components\nfc\t4t_parser\apdu;..\sdk\components\nfc\t4t_parser\cc_file;..\sdk\components\nfc\t4t_parser\hl_detection_procedure;..\sdk\components\nfc\t4t_parser\tlv;..\sdk\components\softdevice\common;..\sdk\components\softdevice\s140\headers;..\sdk\components\softdevice\s140\headers\nrf52;..\sdk\external\fprintf;..\sdk\external\segger_rtt;..\sdk\external\utf_converter;..\sdk\integration\nrfx;..\sdk\integration\nrfx\legacy;..\sdk\modules\nrfx;..\sdk\modules\nrfx\drivers\include;..\sdk\modules\nrfx\hal;.\config\;.\src\;..\libznordic\include</IncludePath>
+              <IncludePath>..\sdk\config;..\sdk\components;..\sdk\components\ble\ble_advertising;..\sdk\components\ble\ble_dtm;..\sdk\components\ble\ble_link_ctx_manager;..\sdk\components\ble\ble_racp;..\sdk\components\ble\ble_services\ble_ancs_c;..\sdk\components\ble\ble_services\ble_ans_c;..\sdk\components\ble\ble_services\ble_bas;..\sdk\components\ble\ble_services\ble_bas_c;..\sdk\components\ble\ble_services\ble_cscs;..\sdk\components\ble\ble_services\ble_cts_c;..\sdk\components\ble\ble_services\ble_dfu;..\sdk\components\ble\ble_services\ble_dis;..\sdk\components\ble\ble_services\ble_gls;..\sdk\components\ble\ble_services\ble_hids;..\sdk\components\ble\ble_services\ble_hrs;..\sdk\components\ble\ble_services\ble_hrs_c;..\sdk\components\ble\ble_services\ble_hts;..\sdk\components\ble\ble_services\ble_ias;..\sdk\components\ble\ble_services\ble_ias_c;..\sdk\components\ble\ble_services\ble_lbs;..\sdk\components\ble\ble_services\ble_lbs_c;..\sdk\components\ble\ble_services\ble_lls;..\sdk\components\ble\ble_services\ble_nus;..\sdk\components\ble\ble_services\ble_nus_c;..\sdk\components\ble\ble_services\ble_rscs;..\sdk\components\ble\ble_services\ble_rscs_c;..\sdk\components\ble\ble_services\ble_tps;..\sdk\components\ble\common;..\sdk\components\ble\nrf_ble_gatt;..\sdk\components\ble\nrf_ble_qwr;..\sdk\components\ble\peer_manager;..\sdk\components\boards;..\sdk\components\libraries\atomic;..\sdk\components\libraries\atomic_fifo;..\sdk\components\libraries\atomic_flags;..\sdk\components\libraries\balloc;..\sdk\components\libraries\bootloader\ble_dfu;..\sdk\components\libraries\bsp;..\sdk\components\libraries\button;..\sdk\components\libraries\cli;..\sdk\components\libraries\crc16;..\sdk\components\libraries\crc32;..\sdk\components\libraries\crypto;..\sdk\components\libraries\csense;..\sdk\components\libraries\csense_drv;..\sdk\components\libraries\delay;..\sdk\components\libraries\ecc;..\sdk\components\libraries\experimental_section_vars;..\sdk\components\libraries\experimental_task_manager;..\sdk\components\libraries\fds;..\sdk\components\libraries\fifo;..\sdk\components\libraries\fstorage;..\sdk\components\libraries\gfx;..\sdk\components\libraries\gpiote;..\sdk\components\libraries\hardfault;..\sdk\components\libraries\hci;..\sdk\components\libraries\led_softblink;..\sdk\components\libraries\log;..\sdk\components\libraries\log\src;..\sdk\components\libraries\low_power_pwm;..\sdk\components\libraries\mem_manager;..\sdk\components\libraries\memobj;..\sdk\components\libraries\mpu;..\sdk\components\libraries\mutex;..\sdk\components\libraries\pwm;..\sdk\components\libraries\pwr_mgmt;..\sdk\components\libraries\queue;..\sdk\components\libraries\ringbuf;..\sdk\components\libraries\scheduler;..\sdk\components\libraries\sdcard;..\sdk\components\libraries\slip;..\sdk\components\libraries\sortlist;..\sdk\components\libraries\spi_mngr;..\sdk\components\libraries\stack_guard;..\sdk\components\libraries\strerror;..\sdk\components\libraries\svc;..\sdk\components\libraries\timer;..\sdk\components\libraries\twi_mngr;..\sdk\components\libraries\twi_sensor;..\sdk\components\libraries\uart;..\sdk\components\libraries\usbd;..\sdk\components\libraries\usbd\class\audio;..\sdk\components\libraries\usbd\class\cdc;..\sdk\components\libraries\usbd\class\cdc\acm;..\sdk\components\libraries\usbd\class\hid;..\sdk\components\libraries\usbd\class\hid\generic;..\sdk\components\libraries\usbd\class\hid\kbd;..\sdk\components\libraries\usbd\class\hid\mouse;..\sdk\components\libraries\usbd\class\msc;..\sdk\components\libraries\util;..\sdk\components\nfc\ndef\conn_hand_parser;..\sdk\components\nfc\ndef\conn_hand_parser\ac_rec_parser;..\sdk\components\nfc\ndef\conn_hand_parser\ble_oob_advdata_parser;..\sdk\components\nfc\ndef\conn_hand_parser\le_oob_rec_parser;..\sdk\components\nfc\ndef\connection_handover\ac_rec;..\sdk\components\nfc\ndef\connection_handover\ble_oob_advdata;..\sdk\components\nfc\ndef\connection_handover\ble_pair_lib;..\sdk\components\nfc\ndef\connection_handover\ble_pair_msg;..\sdk\components\nfc\ndef\connection_handover\common;..\sdk\components\nfc\ndef\connection_handover\ep_oob_rec;..\sdk\components\nfc\ndef\connection_handover\hs_rec;..\sdk\components\nfc\ndef\connection_handover\le_oob_rec;..\sdk\components\nfc\ndef\generic\message;..\sdk\components\nfc\ndef\generic\record;..\sdk\components\nfc\ndef\launchapp;..\sdk\components\nfc\ndef\parser\message;..\sdk\components\nfc\ndef\parser\record;..\sdk\components\nfc\ndef\text;..\sdk\components\nfc\ndef\uri;..\sdk\components\nfc\platform;..\sdk\components\nfc\t2t_lib;..\sdk\components\nfc\t2t_parser;..\sdk\components\nfc\t4t_lib;..\sdk\components\nfc\t4t_parser\apdu;..\sdk\components\nfc\t4t_parser\cc_file;..\sdk\components\nfc\t4t_parser\hl_detection_procedure;..\sdk\components\nfc\t4t_parser\tlv;..\sdk\components\softdevice\common;..\sdk\components\softdevice\s140\headers;..\sdk\components\softdevice\s140\headers\nrf52;..\sdk\external\fprintf;..\sdk\external\segger_rtt;..\sdk\external\utf_converter;..\sdk\integration\nrfx;..\sdk\integration\nrfx\legacy;..\sdk\modules\nrfx;..\sdk\modules\nrfx\drivers\include;..\sdk\modules\nrfx\hal;.\config\;.\src\;..\libznordic\include;..\sdk\external\fatfs\port;..\sdk\external\fatfs\src;..\sdk\components\libraries\block_dev;..\sdk\components\libraries\block_dev\sdc\;..\sdk\external\protothreads\;..\sdk\external\protothreads\pt-1.4\</IncludePath>
             </VariousControls>
           </Cads>
           <Aads>
@@ -1654,6 +1654,11 @@
               <FileType>1</FileType>
               <FilePath>..\sdk\modules\nrfx\drivers\src\nrfx_twim.c</FilePath>
             </File>
+            <File>
+              <FileName>nrfx_pwm.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\modules\nrfx\drivers\src\nrfx_pwm.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -3059,6 +3064,16 @@
                 </FileArmAds>
               </FileOption>
             </File>
+            <File>
+              <FileName>nrf_block_dev_sdc.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\components\libraries\block_dev\sdc\nrf_block_dev_sdc.c</FilePath>
+            </File>
+            <File>
+              <FileName>app_sdcard.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\components\libraries\sdcard\app_sdcard.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -3708,6 +3723,21 @@
           </Files>
         </Group>
         <Group>
+          <GroupName>FATFS</GroupName>
+          <Files>
+            <File>
+              <FileName>diskio_blkdev.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\external\fatfs\port\diskio_blkdev.c</FilePath>
+            </File>
+            <File>
+              <FileName>ff.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\external\fatfs\src\ff.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
           <GroupName>::CMSIS</GroupName>
         </Group>
         <Group>
@@ -5363,6 +5393,11 @@
               <FileType>1</FileType>
               <FilePath>..\sdk\modules\nrfx\drivers\src\nrfx_twim.c</FilePath>
             </File>
+            <File>
+              <FileName>nrfx_pwm.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\modules\nrfx\drivers\src\nrfx_pwm.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -6768,6 +6803,16 @@
                 </FileArmAds>
               </FileOption>
             </File>
+            <File>
+              <FileName>nrf_block_dev_sdc.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\components\libraries\block_dev\sdc\nrf_block_dev_sdc.c</FilePath>
+            </File>
+            <File>
+              <FileName>app_sdcard.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\components\libraries\sdcard\app_sdcard.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -7417,6 +7462,21 @@
           </Files>
         </Group>
         <Group>
+          <GroupName>FATFS</GroupName>
+          <Files>
+            <File>
+              <FileName>diskio_blkdev.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\external\fatfs\port\diskio_blkdev.c</FilePath>
+            </File>
+            <File>
+              <FileName>ff.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\sdk\external\fatfs\src\ff.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
           <GroupName>::CMSIS</GroupName>
           <GroupOption>
             <CommonProperty>
diff --git a/app/config/sdk_config.h b/app/config/sdk_config.h
index ab5b0b8..883d8c1 100644
--- a/app/config/sdk_config.h
+++ b/app/config/sdk_config.h
@@ -2784,13 +2784,13 @@
 // <e> NRFX_PWM_ENABLED - nrfx_pwm - PWM peripheral driver
 //==========================================================
 #ifndef NRFX_PWM_ENABLED
-#define NRFX_PWM_ENABLED 0
+#define NRFX_PWM_ENABLED 1
 #endif
 // <q> NRFX_PWM0_ENABLED  - Enable PWM0 instance
  
 
 #ifndef NRFX_PWM0_ENABLED
-#define NRFX_PWM0_ENABLED 0
+#define NRFX_PWM0_ENABLED 1
 #endif
 
 // <q> NRFX_PWM1_ENABLED  - Enable PWM1 instance
@@ -5023,7 +5023,7 @@
 // <e> PWM_ENABLED - nrf_drv_pwm - PWM peripheral driver - legacy layer
 //==========================================================
 #ifndef PWM_ENABLED
-#define PWM_ENABLED 0
+#define PWM_ENABLED 1
 #endif
 // <o> PWM_DEFAULT_CONFIG_OUT0_PIN - Out0 pin  <0-31> 
 
@@ -5123,7 +5123,7 @@
  
 
 #ifndef PWM0_ENABLED
-#define PWM0_ENABLED 0
+#define PWM0_ENABLED 1
 #endif
 
 // <q> PWM1_ENABLED  - Enable PWM1 instance
@@ -6195,7 +6195,7 @@
  
 
 #ifndef APP_PWM_ENABLED
-#define APP_PWM_ENABLED 0
+#define APP_PWM_ENABLED 1
 #endif
 
 // <e> APP_SCHEDULER_ENABLED - app_scheduler - Events scheduler
@@ -6222,7 +6222,7 @@
 // <e> APP_SDCARD_ENABLED - app_sdcard - SD/MMC card support using SPI
 //==========================================================
 #ifndef APP_SDCARD_ENABLED
-#define APP_SDCARD_ENABLED 0
+#define APP_SDCARD_ENABLED 1
 #endif
 // <o> APP_SDCARD_SPI_INSTANCE  - SPI instance used
  
diff --git a/app/main.c b/app/main.c
index c0b11f9..f845f4a 100644
--- a/app/main.c
+++ b/app/main.c
@@ -7,6 +7,10 @@
 #include "zble_module.h"
 #include "zdatachannel_service.h"
 
+#include "ff.h"
+#include "diskio_blkdev.h"
+#include "nrf_block_dev_sdc.h"
+
 #if 0
 void qingfengboard_test(void) {
   // 测试LED
@@ -85,9 +89,11 @@ static void board_init() {
   // adc_module_heart_elect_channel_init(NRF_SAADC_INPUT_AIN2);
 
   // board_spi_init();
-  board_i2c_init();
+  // board_i2c_init();
 }
 
+
+
 int main(void) {
   zsys_init();
   NRF_LOG_INFO("compile time :%s", __TIME__);
@@ -104,8 +110,11 @@ int main(void) {
 
   NRF_SDH_BLE_OBSERVER(m_ble_observer, 3, ble_evt_handler, NULL);
 
-  ZERROR_CHECK(app_timer_create(&m_test_tx_timer, APP_TIMER_MODE_REPEATED, test_tx_timer_cb));
-  ZERROR_CHECK(app_timer_start(m_test_tx_timer, APP_TIMER_TICKS(100), NULL));
+  // ZERROR_CHECK(app_timer_create(&m_test_tx_timer, APP_TIMER_MODE_REPEATED, test_tx_timer_cb));
+  // ZERROR_CHECK(app_timer_start(m_test_tx_timer, APP_TIMER_TICKS(100), NULL));
+
+  // fatfs_test_write();
+  pwm_trigger();
 
   zble_module_start_adv();
   zsys_loop();
diff --git a/app/src/board.c b/app/src/board.c
index 940461e..03f79d4 100644
--- a/app/src/board.c
+++ b/app/src/board.c
@@ -3,6 +3,11 @@
 #include "app_timer.h"
 #include "nrf_gpio.h"
 #include "sys.h"
+//
+#include "diskio_blkdev.h"
+#include "ff.h"
+#include "nrf_block_dev_sdc.h"
+#include "nrf_drv_pwm.h"
 
 static int16_t adc_channel_read_val(uint16_t channel) {
   nrf_saadc_value_t value;
@@ -180,9 +185,41 @@ ret_code_t board_spi_transfer_test() {
 
 void screen_init() {}
 void screen_spi_translate_onebyte() {}
+
+static nrf_drv_pwm_t               m_pwm0 = NRF_DRV_PWM_INSTANCE(0);
+static nrf_pwm_values_individual_t m_demo1_seq_values;
+
+void pwm_trigger() {
+  nrf_drv_pwm_config_t const config0 = {
+      .output_pins  = {11},
+      .irq_priority = APP_IRQ_PRIORITY_LOWEST,
+      .base_clock   = NRF_PWM_CLK_125kHz,
+      .count_mode   = NRF_PWM_MODE_UP,
+      .top_value    = 5,
+      .load_mode    = NRF_PWM_LOAD_INDIVIDUAL,
+      .step_mode    = NRF_PWM_STEP_AUTO,
+  };
+  APP_ERROR_CHECK(nrf_drv_pwm_init(&m_pwm0, &config0, NULL));
+
+  static nrf_pwm_sequence_t const m_demo1_seq = {
+      .values.p_individual = &m_demo1_seq_values,
+      .length              = NRF_PWM_VALUES_LENGTH(m_demo1_seq_values),
+      .repeats             = 0,
+      .end_delay           = 0,
+  };
+
+  m_demo1_seq_values.channel_0 = 2;
+  m_demo1_seq_values.channel_1 = 0;
+  m_demo1_seq_values.channel_2 = 0;
+  m_demo1_seq_values.channel_3 = 0;
+
+  (void)nrf_drv_pwm_simple_playback(&m_pwm0, &m_demo1_seq, 1, NRF_DRV_PWM_FLAG_LOOP);
+}
+
 /*******************************************************************************
  *                                     I2C                                     *
  *******************************************************************************/
+
 #define TWI_SCL_M 30  // I2C SCL引脚
 #define TWI_SDA_M 31  // I2C SDA引脚
 static const nrf_drv_twi_t m_twi_master = NRF_DRV_TWI_INSTANCE(1);
@@ -201,7 +238,96 @@ void board_i2c_init() {
   nrf_drv_twi_enable(&m_twi_master);
 }
 
-void board_i2c_write(uint8_t addr, uint8_t* data, uint8_t len) {
-  nrf_drv_twi_tx(&m_twi_master, addr, data, len, false);
-}
+void board_i2c_write(uint8_t addr, uint8_t* data, uint8_t len) { nrf_drv_twi_tx(&m_twi_master, addr, data, len, false); }
+
+#define FILE_NAME   "NORDIC.TXT"
+#define TEST_STRING "SD card example."
+
+// #define SPI_MISO_PIN 31
+// #define SPI_SS_PIN   20
+// #define SPI_SCK_PIN  29
+// #define SPI_MOSI_PIN 30
+
+#define SDC_SCK_PIN  29  ///< SDC serial clock (SCK) pin.
+#define SDC_MOSI_PIN 30  ///< SDC serial data in (DI) pin.
+#define SDC_MISO_PIN 31  ///< SDC serial data out (DO) pin.
+#define SDC_CS_PIN   28  ///< SDC chip select (CS) pin.
+
+NRF_BLOCK_DEV_SDC_DEFINE(m_block_dev_sdc, NRF_BLOCK_DEV_SDC_CONFIG(SDC_SECTOR_SIZE, APP_SDCARD_CONFIG(SDC_MOSI_PIN, SDC_MISO_PIN, SDC_SCK_PIN, SDC_CS_PIN)), NFR_BLOCK_DEV_INFO_CONFIG("Nordic", "SDC", "1.00"));
+void fatfs_init() {}
+void fatfs_test_write() {
+  static FATFS   fs;
+  static DIR     dir;
+  static FILINFO fno;
+  static FIL     file;
+
+  uint32_t bytes_written;
+  FRESULT  ff_result;
+  DSTATUS  disk_state = STA_NOINIT;
+
+  // Initialize FATFS disk I/O interface by providing the block device.
+  static diskio_blkdev_t drives[] = {DISKIO_BLOCKDEV_CONFIG(NRF_BLOCKDEV_BASE_ADDR(m_block_dev_sdc, block_dev), NULL)};
+
+  diskio_blockdev_register(drives, ARRAY_SIZE(drives));
+
+  NRF_LOG_INFO("Initializing disk 0 (SDC)...");
+  for (uint32_t retries = 3; retries && disk_state; --retries) {
+    disk_state = disk_initialize(0);
+  }
+  if (disk_state) {
+    NRF_LOG_INFO("Disk initialization failed.");
+    return;
+  }
+
+  uint32_t blocks_per_mb = (1024uL * 1024uL) / m_block_dev_sdc.block_dev.p_ops->geometry(&m_block_dev_sdc.block_dev)->blk_size;
+  uint32_t capacity      = m_block_dev_sdc.block_dev.p_ops->geometry(&m_block_dev_sdc.block_dev)->blk_count / blocks_per_mb;
+  NRF_LOG_INFO("Capacity: %d MB", capacity);
+
+  NRF_LOG_INFO("Mounting volume...");
+  ff_result = f_mount(&fs, "", 1);
+  if (ff_result) {
+    NRF_LOG_INFO("Mount failed.");
+    return;
+  }
+
+  NRF_LOG_INFO("\r\n Listing directory: /");
+  ff_result = f_opendir(&dir, "/");
+  if (ff_result) {
+    NRF_LOG_INFO("Directory listing failed!");
+    return;
+  }
+
+  do {
+    ff_result = f_readdir(&dir, &fno);
+    if (ff_result != FR_OK) {
+      NRF_LOG_INFO("Directory read failed.");
+      return;
+    }
+
+    if (fno.fname[0]) {
+      if (fno.fattrib & AM_DIR) {
+        NRF_LOG_RAW_INFO("   <DIR>   %s", (uint32_t)fno.fname);
+      } else {
+        NRF_LOG_RAW_INFO("%9lu  %s", fno.fsize, (uint32_t)fno.fname);
+      }
+    }
+  } while (fno.fname[0]);
+  NRF_LOG_RAW_INFO("");
+
+  NRF_LOG_INFO("Writing to file " FILE_NAME "...");
+  ff_result = f_open(&file, FILE_NAME, FA_READ | FA_WRITE | FA_OPEN_APPEND);
+  if (ff_result != FR_OK) {
+    NRF_LOG_INFO("Unable to open or create file: " FILE_NAME ".");
+    return;
+  }
+
+  ff_result = f_write(&file, TEST_STRING, sizeof(TEST_STRING) - 1, (UINT*)&bytes_written);
+  if (ff_result != FR_OK) {
+    NRF_LOG_INFO("Write failed\r\n.");
+  } else {
+    NRF_LOG_INFO("%d bytes written.", bytes_written);
+  }
 
+  (void)f_close(&file);
+  return;
+}
\ No newline at end of file
diff --git a/app/src/board.h b/app/src/board.h
index 47a7fce..331f855 100644
--- a/app/src/board.h
+++ b/app/src/board.h
@@ -54,4 +54,11 @@ void board_i2c_init();
 void board_i2c_write(uint8_t addr, uint8_t* data, uint8_t len);
 
 void screen_init();
-void screen_spi_translate_onebyte();
\ No newline at end of file
+void screen_spi_translate_onebyte();
+
+/*******************************************************************************
+ *                                    FATFS                                    *
+ *******************************************************************************/
+void fatfs_init();
+void fatfs_test_write();
+void pwm_trigger();
\ No newline at end of file
diff --git a/sdk b/sdk
index 4583631..9ff458f 160000
--- a/sdk
+++ b/sdk
@@ -1 +1 @@
-Subproject commit 458363107275ea8f80171b824a634780a1d84eb3
+Subproject commit 9ff458fcdef52d2ff06829ec783406af521844da