diff --git a/common/inc/tx_api.h b/common/inc/tx_api.h
index 3ff05f4..64fcb8a 100644
--- a/common/inc/tx_api.h
+++ b/common/inc/tx_api.h
@@ -1471,7 +1471,7 @@ UINT    _tx_el_interrupt_control(UINT new_posture);
 
 /* Declare the tx_application_define function as having C linkage.  */
 
-VOID        tx_application_define(VOID *first_unused_memory);
+VOID        ThreadXTaskInit(VOID *first_unused_memory);
 
 
 /* Define the function prototypes of the ThreadX API.  */
diff --git a/common/src/tx_initialize_kernel_enter.c b/common/src/tx_initialize_kernel_enter.c
index e5eda61..4e33dde 100644
--- a/common/src/tx_initialize_kernel_enter.c
+++ b/common/src/tx_initialize_kernel_enter.c
@@ -141,7 +141,7 @@ VOID  _tx_initialize_kernel_enter(VOID)
 
     /* Call the application provided initialization function.  Pass the
        first available memory address to it.  */
-    tx_application_define(_tx_initialize_unused_memory);
+    ThreadXTaskInit(_tx_initialize_unused_memory);
 
     /* Set the system state in preparation for entering the thread
        scheduler.  */
diff --git a/ports/cortex_m3/keil/inc/tx_port.h b/ports/cortex_m3/keil/inc/tx_port.h
index 04e83be..7fc6c1f 100644
--- a/ports/cortex_m3/keil/inc/tx_port.h
+++ b/ports/cortex_m3/keil/inc/tx_port.h
@@ -121,6 +121,12 @@ typedef short                                   SHORT;
 typedef unsigned short                          USHORT;
 #define ULONG64_DEFINED
 
+/* Error info check */
+#undef TX_BYTE_POOL_ENABLE_PERFORMANCE_INFO
+
+/* Code error check */
+#undef TX_DISABLE_ERROR_CHECKING
+
 /* Define the priority levels for ThreadX.  Legal values range
    from 32 to 1024 and MUST be evenly divisible by 32.  */
 
@@ -133,7 +139,7 @@ typedef unsigned short                          USHORT;
    thread creation is less than this value, the thread create call will return an error.  */
 
 #ifndef TX_MINIMUM_STACK
-#define TX_MINIMUM_STACK                        200         /* Minimum stack size for this port  */
+#define TX_MINIMUM_STACK                        32          /* Minimum stack size for this port  */
 #endif
 
 
@@ -141,7 +147,7 @@ typedef unsigned short                          USHORT;
    if TX_TIMER_PROCESS_IN_ISR is not defined.  */
 
 #ifndef TX_TIMER_THREAD_STACK_SIZE
-#define TX_TIMER_THREAD_STACK_SIZE              1024        /* Default timer thread stack size  */
+#define TX_TIMER_THREAD_STACK_SIZE              128         /* Default timer thread stack size  */
 #endif
 
 #ifndef TX_TIMER_THREAD_PRIORITY