diff --git a/components/drivers/include/ipc/ringblk_buf.h b/components/drivers/include/ipc/ringblk_buf.h
index 5b2971b800..df05659f3e 100644
--- a/components/drivers/include/ipc/ringblk_buf.h
+++ b/components/drivers/include/ipc/ringblk_buf.h
@@ -76,9 +76,12 @@ typedef struct rt_rbb *rt_rbb_t;
 
 /* rbb (ring block buffer) API */
 void rt_rbb_init(rt_rbb_t rbb, rt_uint8_t *buf, rt_size_t buf_size, rt_rbb_blk_t block_set, rt_size_t blk_max_num);
+rt_size_t rt_rbb_get_buf_size(rt_rbb_t rbb);
+
+#ifdef RT_USING_HEAP
 rt_rbb_t rt_rbb_create(rt_size_t buf_size, rt_size_t blk_max_num);
 void rt_rbb_destroy(rt_rbb_t rbb);
-rt_size_t rt_rbb_get_buf_size(rt_rbb_t rbb);
+#endif
 
 /* rbb block API */
 rt_rbb_blk_t rt_rbb_blk_alloc(rt_rbb_t rbb, rt_size_t blk_size);
diff --git a/components/drivers/src/ringblk_buf.c b/components/drivers/src/ringblk_buf.c
index c6688b3d2b..b966da3d36 100644
--- a/components/drivers/src/ringblk_buf.c
+++ b/components/drivers/src/ringblk_buf.c
@@ -44,6 +44,8 @@ void rt_rbb_init(rt_rbb_t rbb, rt_uint8_t *buf, rt_size_t buf_size, rt_rbb_blk_t
 }
 RTM_EXPORT(rt_rbb_init);
 
+#ifdef RT_USING_HEAP
+
 /**
  * ring block buffer object create
  *
@@ -102,6 +104,8 @@ void rt_rbb_destroy(rt_rbb_t rbb)
 }
 RTM_EXPORT(rt_rbb_destroy);
 
+#endif
+
 static rt_rbb_blk_t find_empty_blk_in_set(rt_rbb_t rbb)
 {
     rt_size_t i;