87 lines
3.2 KiB
C
87 lines
3.2 KiB
C
/*
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* File : board.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2009 RT-Thread Develop Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2009-01-05 Bernard first implementation
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*/
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#include <board.h>
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
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/**Configure LSE Drive Capability
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*/
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HAL_PWR_EnableBkUpAccess();
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__HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);
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/**Initializes the CPU, AHB and APB busses clocks
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_LSE
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|RCC_OSCILLATORTYPE_MSI;
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RCC_OscInitStruct.LSEState = RCC_LSE_ON;
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RCC_OscInitStruct.LSIState = RCC_LSI_ON;
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RCC_OscInitStruct.MSIState = RCC_MSI_ON;
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RCC_OscInitStruct.MSICalibrationValue = 0;
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RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
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RCC_OscInitStruct.PLL.PLLM = 1;
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RCC_OscInitStruct.PLL.PLLN = 40;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
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RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/**Initializes the CPU, AHB and APB busses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
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{
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Error_Handler();
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}
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PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC|RCC_PERIPHCLK_USART2
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|RCC_PERIPHCLK_USART3|RCC_PERIPHCLK_LPUART1
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|RCC_PERIPHCLK_SDMMC1|RCC_PERIPHCLK_ADC;
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PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
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PeriphClkInit.Usart3ClockSelection = RCC_USART3CLKSOURCE_PCLK1;
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PeriphClkInit.Lpuart1ClockSelection = RCC_LPUART1CLKSOURCE_PCLK1;
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PeriphClkInit.AdcClockSelection = RCC_ADCCLKSOURCE_PLLSAI1;
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PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
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PeriphClkInit.Sdmmc1ClockSelection = RCC_SDMMC1CLKSOURCE_PLLSAI1;
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PeriphClkInit.PLLSAI1.PLLSAI1Source = RCC_PLLSOURCE_MSI;
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PeriphClkInit.PLLSAI1.PLLSAI1M = 1;
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PeriphClkInit.PLLSAI1.PLLSAI1N = 16;
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PeriphClkInit.PLLSAI1.PLLSAI1P = RCC_PLLP_DIV2;
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PeriphClkInit.PLLSAI1.PLLSAI1Q = RCC_PLLQ_DIV2;
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PeriphClkInit.PLLSAI1.PLLSAI1R = RCC_PLLR_DIV2;
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PeriphClkInit.PLLSAI1.PLLSAI1ClockOut = RCC_PLLSAI1_48M2CLK|RCC_PLLSAI1_ADC1CLK;
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if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
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{
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Error_Handler();
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}
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/**Configure the main internal regulator output voltage
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*/
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if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
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{
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Error_Handler();
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}
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}
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