fclk频率是什么

【fclk频率是什么】FCLK为CPU核供给时钟信号,1/Fclk即为cpu时钟周期 。HCLK为AHB bus peripherals供给时钟信号 , AHB为advanced high-performance bus 。PCLK为APB bus peripherals供给时钟信号,APB为advanced peripherals bus