APP_Framework/lib/:add embeded database (flashdb) configuration file

APP_Framework/Applications/knowing_app/image_processing/TJpgDec_APP/Kconfig

@@ -1,4 +1,5 @@
 config IMAGE_PROCESSING_TJPGDEC_APP
     bool "image processing apps/TJpgDec(example)"
+    select USING_IMAGE_PROCESSING
     select IMAGE_PROCESSING_USING_TJPGD
     default n

APP_Framework/lib/Kconfig

@@ -12,4 +12,5 @@ menu "lib"
      source "$APP_DIR/lib/cJSON/Kconfig"
 	 source "$APP_DIR/lib/queue/Kconfig"
      source "$APP_DIR/lib/lvgl/Kconfig"
+     source "$APP_DIR/lib/embedded_database/Kconfig"
 endmenu

APP_Framework/lib/embedded_database/Kconfig

@@ -0,0 +1,6 @@
+menuconfig USING_EMBEDDED_DATABASE
+    bool "embedded database"
+    default n
+if USING_EMBEDDED_DATABASE
+        source "$APP_DIR/lib/embedded_database/flashdb/Kconfig"
+endif

APP_Framework/lib/embedded_database/SConscript

@@ -0,0 +1,14 @@
+import os
+Import('RTT_ROOT')
+from building import *
+
+cwd = GetCurrentDir()
+objs = []
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(path, 'SConscript'))
+
+Return('objs')

APP_Framework/lib/embedded_database/flashdb/Kconfig

@@ -0,0 +1,25 @@
+menuconfig USING_EMBEDDED_DATABASE_FLASHDB
+    bool "flashdb an ultra-lightweight embedded database "
+    default n
+
+if USING_EMBEDDED_DATABASE_FLASHDB
+    comment " fal io is not supported so far"
+    choice
+        prompt "select io mode"
+        default FDB_USING_FILE_POSIX_MODE
+        help
+                Select io mode
+        config FDB_USING_FILE_POSIX_MODE
+                bool "file posix io "
+        config FDB_USING_FILE_LIBC_MODE
+                bool "file libc io "
+        config FDB_USING_FAL_MODE
+                bool "flash fal io "
+    endchoice 
+    config FDB_USING_KVDB
+            bool "Use key value database"
+            default n
+    config FDB_USING_TSDB
+            bool "Use time series database"
+            default n
+endif

APP_Framework/lib/embedded_database/flashdb/SConscript

@@ -0,0 +1,10 @@
+from building import *
+import os
+
+cwd = GetCurrentDir()
+
+src = Glob('*.c')
+
+group = DefineGroup('embedded database', src, depend = ['USING_EMBEDDED_DATABASE_FLASHDB'], CPPPATH = [cwd])
+
+Return('group')