63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2006-2018, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2020-7-1 NU-LL first version
|
|
*/
|
|
|
|
#include "board.h"
|
|
|
|
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
|
|
*/
|
|
HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);
|
|
/** Initializes the CPU, AHB and APB busses clocks
|
|
*/
|
|
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI;
|
|
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
|
|
RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1;
|
|
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
|
|
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
|
|
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
|
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
|
|
RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV1;
|
|
RCC_OscInitStruct.PLL.PLLN = 8;
|
|
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
|
|
RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
|
|
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
/** Initializes the CPU, AHB and APB busses clocks
|
|
*/
|
|
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|
|
|RCC_CLOCKTYPE_PCLK1;
|
|
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
|
|
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
|
|
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
|
|
|
|
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
/** Initializes the peripherals clocks
|
|
*/
|
|
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1|RCC_PERIPHCLK_USART2
|
|
|RCC_PERIPHCLK_ADC;
|
|
PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK1;
|
|
PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
|
|
PeriphClkInit.AdcClockSelection = RCC_ADCCLKSOURCE_SYSCLK;
|
|
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
}
|