static cyg_int32 last_delta;
static cyg_tick_count_t last_set_time;
-#define STACK_SIZE CYGNUM_HAL_STACK_SIZE_TYPICAL
+#define STACK_SIZE CYGNUM_NET_FAST_THREAD_STACKSIZE
+
static char alarm_stack[STACK_SIZE];
static cyg_thread alarm_thread_data;
static cyg_handle_t alarm_thread_handle;