STM32_Clock_Configuration_V1.2.0.zip_Clock_Configuration_STM32F1

******************************************************************************** (C) COPYRIGHT 2013 STMicroelectronics ******************************************************************************** * File log.txt * Brief This file is generated by the clock configuration tool * STM32L1xx_Clock_Configuration_V1.2.0.xls * Author MCD Application Team * Version V1.2.0 * Date 16-May-2017 * Time 16:15:47 ******************************************************************************** ================================================================================ Selected System Clock Configuration ================================================================================ System Clock source : PLL(HSE) SYSCLK : 8000000 Hz HCLK : 2000000 Hz AHB Prescaler : 4 APB1 Prescaler : 1 APB2 Prescaler : 1 HSE Frequency : 8000000 Hz PLL DIV : 3 PLL MUL : 3 VDD : 3.3 V VCore : 1.8 V (Range 1) Flash Latency : 0 WS Require 48MHz for USB Clock : Disabled ================================================================================ ******************************************************************************** * 27 System Clock configurations are possible to achieve the selected frequency. * All those configurations can be obtained with the following common parameters * (VDD, USB Clock): ================================================================================ * VDD : 3.3 V * Require 48MHz for USB Clock : Disabled ================================================================================ ******************************************************************************** ================================================================================ Case 1: System Clock source: MSI ================================================================================ System Clock source : MSI(Range5) SYSCLK : 2000000 Hz HCLK : 2000000 Hz AHB Prescaler : 1 Possible VCore and Flash Latency : Range 1 and 0 Wait State (Vcore = 1.8 V & 0 WS) Range 1 and 1 Wait State (Vcore = 1.8 V & 1 WS) ================================================================================ ================================================================================ Case 2: System Clock source: MSI ================================================================================ System Clock source : MSI(Range6) SYSCLK : 4000000 Hz HCLK : 2000000 Hz AHB Prescaler : 2 Possible VCore and Flash Latency : Range 1 and 0 Wait State (Vcore = 1.8 V & 0 WS) Range 1 and 1 Wait State (Vcore = 1.8 V & 1 WS) ================================================================================ ================================================================================ Case 3: System Clock source: MSI ================================================================================ System Clock source : MSI(Range5) SYSCLK : 2000000 Hz HCLK : 2000000 Hz AHB Prescaler : 1 Possible VCore and Flash Latency : Range 2 and 0 Wait State (Vcore = 1.5 V & 0 WS) Range 2 and 1 Wait State (Vcore = 1.5 V & 1 WS) ================================================================================ ================================================================================ Case 4: System Clock source: MSI ================================================================================ System Clock source : MSI(Range6) SYSCLK : 4000000 Hz HCLK : 2000000 Hz AHB Prescaler : 2 Possible VCore and Flash Latency : Range 2 and 0 Wait State (Vcore = 1.5 V & 0 WS) Range 2 and 1 Wait State (Vcore = 1.5 V & 1 WS) ================================================================================ ================================================================================ Case 5: System Clock source: MSI ================================================================================ System Clock source : MSI(Range5) SYSCLK : 2000000 Hz HCLK : 2000000 Hz AHB Prescaler : 1 Possible VCore and Flash Latency : Range 3 and 0 Wait State (Vcore = 1.2 V & 0 WS) Range 3 and 1 Wait State (Vcore = 1.2 V & 1 WS) ================================================================================ ================================================================================ Case 6: System Clock source: MSI ================================================================================ System Clock source : MSI(Range6) SYSCLK : 4000000 Hz HCLK : 2000000 Hz AHB Prescaler : 2 Possible VCore and Flash Latency : Range 3 and 0 Wait State (Vcore = 1.2 V & 0 WS) Range 3 and 1 Wait State (Vcore = 1.2 V & 1 WS) ================================================================================ ================================================================================ Case 7: System Clock source: HSI ================================================================================ System Clock source : HSI SYSCLK : 16000000 Hz HCLK : 2000000 Hz AHB Prescaler : 8 Possible VCore and Flash Latency : Range 1 and 0 Wait State (Vcore = 1.8 V & 0 WS) Range 1 and 1 Wait State (Vcore = 1.8 V & 1 WS) ================================================================================ ================================================================================ Case 8: System Clock source: HSI ================================================================================ System Clock source : HSI SYSCLK : 16000000 Hz HCLK : 2000000 Hz AHB Prescaler : 8 Possible VCore and Flash Latency : Range 2 and 0 Wait State (Vcore = 1.5 V & 0 WS) Range 2 and 1 Wait State (Vcore = 1.5 V & 1 WS) ================================================================================ ================================================================================ Case 9: System Clock source: HSE ================================================================================ System Clock source : HSE SYSCLK : 8000000 Hz HCLK : 2000000 Hz AHB Prescaler : 4 Possible VCore and Flash Latency : Range 1 and 0 Wait State (Vcore = 1.8 V & 0 WS) Range 1 and 1 Wait State (Vcore = 1.8 V & 1 WS)