1 /* 2 * Copyright (c) 2006-2021, RT-Thread Development Team 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 * 6 * Change Logs: 7 * Date Author Notes 8 * 2018-11-06 SummerGift first version 9 */ 10 11 #include <board.h> 12 #include <drv_common.h> 13 14 /** 15 * @brief System Clock Configuration 16 * @retval None 17 */ SystemClock_Config(void)18void SystemClock_Config(void) 19 { 20 RCC_OscInitTypeDef RCC_OscInitStruct = {0}; 21 RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; 22 23 /** Configure the main internal regulator output voltage 24 */ 25 __HAL_RCC_PWR_CLK_ENABLE(); 26 __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); 27 /** Initializes the CPU, AHB and APB busses clocks 28 */ 29 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; 30 RCC_OscInitStruct.HSEState = RCC_HSE_ON; 31 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; 32 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; 33 RCC_OscInitStruct.PLL.PLLM = 6; 34 RCC_OscInitStruct.PLL.PLLN = 180; 35 RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; 36 RCC_OscInitStruct.PLL.PLLQ = 8; 37 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) 38 { 39 Error_Handler(); 40 } 41 /** Activate the Over-Drive mode 42 */ 43 if (HAL_PWREx_EnableOverDrive() != HAL_OK) 44 { 45 Error_Handler(); 46 } 47 /** Initializes the CPU, AHB and APB busses clocks 48 */ 49 RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK 50 |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; 51 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; 52 RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; 53 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; 54 RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; 55 56 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) 57 { 58 Error_Handler(); 59 } 60 } 61