SysClockConf.cpp

00001 /*
00002   ******************************************************************************
00003   * @file    SysClockConf.c
00004   * @version 
00005   * @date    05-July-2016
00006   * @brief   System Clock configuration for STM32F103C8T6
00007   *****************************************************************************
00008   *
00009   * All rights reserved.
00010 
00011  This program is free software: you can redistribute it and/or modify
00012  it under the terms of the GNU General Public License as published by
00013  the Free Software Foundation, either version 3 of the License, or
00014  (at your option) any later version.
00015 
00016  This program is distributed in the hope that it will be useful,
00017  but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  GNU General Public License for more details.
00020 
00021  You should have received a copy of the GNU General Public License
00022  along with this program.  If not, see <http://www.gnu.org/licenses/>.
00023   */
00024 
00025 #include "SysClockConf.h"
00026 #include "mbed.h"
00027 
00028 void HSE_SystemClock_Config(void) {
00029     RCC_OscInitTypeDef        RCC_OscInitStruct;
00030     RCC_ClkInitTypeDef        RCC_ClkInitStruct;
00031     RCC_PeriphCLKInitTypeDef  PeriphClkInit;
00032 
00033     RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
00034     RCC_OscInitStruct.HSEState = RCC_HSE_ON;
00035     RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
00036     RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
00037     RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
00038     RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
00039     HAL_RCC_OscConfig(&RCC_OscInitStruct);
00040     RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
00041     RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
00042     RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
00043     RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
00044     RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
00045     HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
00046     PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC|RCC_PERIPHCLK_USB;
00047     PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
00048     PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
00049     HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
00050 }
00051 
00052 void confSysClock(void) {
00053     HAL_RCC_DeInit();
00054     HSE_SystemClock_Config();
00055     SystemCoreClockUpdate();
00056 }