diff --git a/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/include/pthread arm.h b/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/include/pthread arm.h
index c5b23a0f1..d7be4dc16 100644
--- a/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/include/pthread arm.h	
+++ b/APP_Framework/Framework/transform_layer/xizi/user_api/posix_support/include/pthread arm.h	
@@ -29,6 +29,7 @@ extern "C" {
 #include <time.h>
 #include <sys/time.h>
 
+#if !defined(_SYS_SCHED_H_) && !defined(_SYS__PTHREADTYPES_H_)
 typedef int   pid_t;
 typedef unsigned long int pthread_t; 
 
@@ -59,6 +60,7 @@ typedef struct pthread_mutexattr {
 } pthread_mutexattr_t;
 
 typedef int pthread_mutex_t ;
+#endif
 
 #ifdef __cplusplus
 }
diff --git a/Ubiquitous/XiZi_IIoT/board/cortex-m0-emulator/.defconfig b/Ubiquitous/XiZi_IIoT/board/cortex-m0-emulator/.defconfig
index 29620e5d2..3c3d859bb 100644
--- a/Ubiquitous/XiZi_IIoT/board/cortex-m0-emulator/.defconfig
+++ b/Ubiquitous/XiZi_IIoT/board/cortex-m0-emulator/.defconfig
@@ -100,8 +100,8 @@ CONFIG_SMALL_NUMBER_64B=16
 #
 # CONFIG_KERNEL_SEMAPHORE=y
 # CONFIG_KERNEL_MUTEX=y
-CONFIG_KERNEL_EVENT=n
-CONFIG_KERNEL_MESSAGEQUEUE=n
+CONFIG_KERNEL_EVENT=y
+CONFIG_KERNEL_MESSAGEQUEUE=y
 CONFIG_KTASK_PRIORITY_8=y
 CONFIG_KTASK_PRIORITY_MAX=8
 CONFIG_TICK_PER_SECOND=100
@@ -115,11 +115,6 @@ CONFIG_IDLE_KTASK_STACKSIZE=512
 CONFIG_ZOMBIE_KTASK_STACKSIZE=512
 # CONFIG_KERNEL_TASK_ISOLATION is not set
 
-#
-# Memory Management
-#
-# CONFIG_KERNEL_MEMBLOCK is not set
-
 #
 # Command shell
 #