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103 lines
4.2 KiB
103 lines
4.2 KiB
/* ----------------------------------------------------------------------------
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* Copyright (c) Huawei Technologies Co., Ltd. 2021-2021. All rights reserved.
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* Description: System Init Implementation
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* Author: Huawei LiteOS Team
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* Create: 2021-07-29
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* --------------------------------------------------------------------------- */
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#include "sys_init.h"
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#include "los_sys.h"
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UINT32 HAL_GetTick(void)
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{
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return (UINT32)LOS_TickCountGet();
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}
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/**
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* @brief This function is executed in case of error occurrence.
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* @param file: The file name as string.
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* @param line: The line in file as a number.
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* @retval None
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*/
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void _Error_Handler(char const *file, int line)
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{
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printf("[ERROR] [file:%s] [line:%d]\n", file, line);
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while (1) {}
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}
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef rccOscInitStruct = {0};
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RCC_ClkInitTypeDef rccClkInitStruct = {0};
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RCC_PeriphCLKInitTypeDef periphClkInitStruct = {0};
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/** Configure the main internal regulator output voltage
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*/
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__HAL_RCC_PWR_CLK_ENABLE();
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure.
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*/
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rccOscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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rccOscInitStruct.HSIState = RCC_HSI_ON;
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rccOscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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rccOscInitStruct.PLL.PLLState = RCC_PLL_ON;
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rccOscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
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rccOscInitStruct.PLL.PLLM = 8; // 8, Set system clock pllm value.
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rccOscInitStruct.PLL.PLLN = 216; // 216, Set system clock plln value.
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rccOscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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rccOscInitStruct.PLL.PLLQ = 2; // 2, Set system clock pllq value.
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if (HAL_RCC_OscConfig(&rccOscInitStruct) != HAL_OK) {
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Error_Handler();
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}
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/** Activate the Over-Drive mode
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*/
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if (HAL_PWREx_EnableOverDrive() != HAL_OK) {
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Error_Handler();
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}
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/** Initializes the CPU, AHB and APB buses clocks
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*/
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rccClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
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rccClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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rccClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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rccClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
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rccClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
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if (HAL_RCC_ClockConfig(&rccClkInitStruct, FLASH_LATENCY_7) != HAL_OK) {
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Error_Handler();
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}
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periphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USART3;
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periphClkInitStruct.Usart3ClockSelection = RCC_USART3CLKSOURCE_PCLK1;
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if (HAL_RCCEx_PeriphCLKConfig(&periphClkInitStruct) != HAL_OK) {
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Error_Handler();
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}
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}
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void HAL_MspInit(void)
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{
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__HAL_RCC_PWR_CLK_ENABLE();
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__HAL_RCC_SYSCFG_CLK_ENABLE();
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}
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