/* * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2021-08-09 supperthomas first version */ #include #include void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; RCC_PeriphCLKInitTypeDef PeriphClkInit = {0}; /** Configure the main internal regulator output voltage */ if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1_BOOST) != HAL_OK) { Error_Handler(); } /** Configure LSE Drive Capability */ HAL_PWR_EnableBkUpAccess(); __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW); /** Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48|RCC_OSCILLATORTYPE_HSE |RCC_OSCILLATORTYPE_LSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.LSEState = RCC_LSE_ON; RCC_OscInitStruct.HSI48State = RCC_HSI48_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 4; RCC_OscInitStruct.PLL.PLLN = 60; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV5; RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2; RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /** Initializes the CPU, AHB and APB buses clocks */ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) { Error_Handler(); } PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC|RCC_PERIPHCLK_USART1 |RCC_PERIPHCLK_I2C1|RCC_PERIPHCLK_I2C3 |RCC_PERIPHCLK_DFSDM1|RCC_PERIPHCLK_USB |RCC_PERIPHCLK_SDMMC1|RCC_PERIPHCLK_ADC; PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2; PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_PCLK1; PeriphClkInit.I2c3ClockSelection = RCC_I2C3CLKSOURCE_PCLK1; PeriphClkInit.AdcClockSelection = RCC_ADCCLKSOURCE_PLLSAI1; PeriphClkInit.Dfsdm1ClockSelection = RCC_DFSDM1CLKSOURCE_PCLK; PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE; PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_HSI48; PeriphClkInit.Sdmmc1ClockSelection = RCC_SDMMC1CLKSOURCE_PLLP; PeriphClkInit.PLLSAI1.PLLSAI1Source = RCC_PLLSOURCE_HSE; PeriphClkInit.PLLSAI1.PLLSAI1M = 5; PeriphClkInit.PLLSAI1.PLLSAI1N = 96; PeriphClkInit.PLLSAI1.PLLSAI1P = RCC_PLLP_DIV2; PeriphClkInit.PLLSAI1.PLLSAI1Q = RCC_PLLQ_DIV4; PeriphClkInit.PLLSAI1.PLLSAI1R = RCC_PLLR_DIV4; PeriphClkInit.PLLSAI1.PLLSAI1ClockOut = RCC_PLLSAI1_ADC1CLK; if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) { Error_Handler(); } }