Fix build errors in porting template project

platformio.ini

@@ -14,8 +14,9 @@ build_flags =
     -DPREFETCH_BUFFER_SIZE=0
     -DMAX_SECTOR_SIZE=2048
     -DSCSI2SD_BUFFER_SIZE=4096
+    -DUSE_ARDUINO=1
 lib_deps =
-    SdFat=https://github.com/greiman/SdFat
+    SdFat=https://github.com/greiman/SdFat#2.1.2
     minIni
     ZuluSCSI_platform_template
     SCSI2SD