[bsp] update clock before configure systick

2017-07-30 19:21:01 +08:00 · 2017-07-30 19:21:01 +08:00 · 47c7d94799
parent e2e9afb699
commit 47c7d94799
1 changed files with 1 additions and 0 deletions
--- a/bsp/lpc824/drivers/board.c
+++ b/bsp/lpc824/drivers/board.c
@ -60,6 +60,7 @@ void SysTick_Handler(void)
 */
 void rt_hw_board_init()
 {
+    SystemCoreClockUpdate();
    SysTick_Config(SystemCoreClock / RT_TIMER_TICK_PER_SECOND);

 #ifdef RT_USING_COMPONENTS_INIT