[bsp][raspberry-pi]Fix the issue of inaccurate system tick.
@@ -64,7 +64,7 @@ void rt_hw_board_init()
}
/* Configure the SysTick */
- systick_config(frequency_count_khz(CLOCKS_FC0_SRC_VALUE_ROSC_CLKSRC)*10000/RT_TICK_PER_SECOND);
+ systick_config(frequency_count_khz(CLOCKS_FC0_SRC_VALUE_PLL_SYS_CLKSRC_PRIMARY) * 1000 / RT_TICK_PER_SECOND);
stdio_init_all();
rt_hw_uart_init();
