diff --git a/bsp/cvitek/c906_little/board/board.c b/bsp/cvitek/c906_little/board/board.c
index 31790dcc444..21418d9dce4 100755
--- a/bsp/cvitek/c906_little/board/board.c
+++ b/bsp/cvitek/c906_little/board/board.c
@@ -16,7 +16,7 @@
 
 rt_uint64_t rt_hw_get_clock_timer_freq(void)
 {
-    return 245000000ULL;
+    return 25000000ULL;
 }
 
 void rt_hw_board_init(void)
diff --git a/bsp/cvitek/cv18xx_risc-v/board/board.c b/bsp/cvitek/cv18xx_risc-v/board/board.c
index b0c8f0b55d6..6eb309af326 100755
--- a/bsp/cvitek/cv18xx_risc-v/board/board.c
+++ b/bsp/cvitek/cv18xx_risc-v/board/board.c
@@ -48,7 +48,7 @@ struct mem_desc platform_mem_desc[] = {
 
 rt_uint64_t rt_hw_get_clock_timer_freq(void)
 {
-    return 245000000ULL;
+    return 25000000ULL;
 }
 
 void init_bss(void)