FCLK為CPU核供給時鐘信号,1/Fclk即為cpu時鐘周期。HCLK為AHB bus peripherals供給時鐘信号,AHB為advanced high-performance bus。PCLK為APB bus peripherals供給時鐘信号,APB為advanced peripherals bus
FCLK為CPU核供給時鐘信号,1/Fclk即為cpu時鐘周期。HCLK為AHB bus peripherals供給時鐘信号,AHB為advanced high-performance bus。PCLK為APB bus peripherals供給時鐘信号,APB為advanced peripherals bus