1 /* 2 * Copyright (c) 2023, RT-Thread Development Team 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 * 6 * Change Logs: 7 * Date Author Notes 8 * 2023-07-06 Supperthomas 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 28 /** Initializes the RCC Oscillators according to the specified parameters 29 * in the RCC_OscInitTypeDef structure. 30 */ 31 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; 32 RCC_OscInitStruct.HSIState = RCC_HSI_ON; 33 RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; 34 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; 35 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI; 36 RCC_OscInitStruct.PLL.PLLM = 8; 37 RCC_OscInitStruct.PLL.PLLN = 168; 38 RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; 39 RCC_OscInitStruct.PLL.PLLQ = 7; 40 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) 41 { 42 Error_Handler(); 43 } 44 45 /** Initializes the CPU, AHB and APB buses clocks 46 */ 47 RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK 48 |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; 49 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; 50 RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; 51 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; 52 RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; 53 54 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) 55 { 56 Error_Handler(); 57 } 58 } 59