readme changes

@@ -4,7 +4,17 @@
 sdk with optek link,Initial versions include GAME, Wireless Subwoofer, and Classic Bluetooth.
 sdk with optek link,Initial versions include GAME, Wireless Subwoofer, and Classic Bluetooth.
 
 
 #### Software Architecture
 #### Software Architecture
-Software architecture description
+1. OS:freertos
+2. tasks:
+    taskStream_Rcv:recieve stream processing for spdif source
+    taskDec:deocde and dsp processing
+    task_bt_controller:controller stack of bt processing
+    taskBtHCI:host stack of bt processing
+    task_usbotg:usb stack processing
+    taskUi:key detection and Special event processing
+    taskKeyFunc:Application layer processing
+    taskHdd:file system processing
+    taskIdle:reset watchdog processing
 
 
 #### Installation
 #### Installation
 
 
@@ -24,13 +34,3 @@ Software architecture description
 2.  Create Feat_xxx branch
 2.  Create Feat_xxx branch
 3.  Commit your code
 3.  Commit your code
 4.  Create Pull Request
 4.  Create Pull Request
-
-
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