85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
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/**
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* @file sys.c
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* @author Myth
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* @version 0.1
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* @date 2021.10.11
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* @brief stm32f103x6 系统配置及常用函数
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* @note 请勿更改此文件内容
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*/
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#include "sys.h"
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/**
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* @brief 系统时钟配置
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 72000000
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* HCLK(Hz) = 72000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 2
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* APB2 Prescaler = 1
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* HSE Frequency(Hz) = 8000000
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* HSE PREDIV1 = 1
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* PLLMUL = 9
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* Flash Latency(WS) = 2
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*/
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void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef clkinitstruct = {0};
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RCC_OscInitTypeDef oscinitstruct = {0};
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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oscinitstruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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oscinitstruct.HSEState = RCC_HSE_ON;
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oscinitstruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
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oscinitstruct.PLL.PLLState = RCC_PLL_ON;
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oscinitstruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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oscinitstruct.PLL.PLLMUL = RCC_PLL_MUL9;
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if (HAL_RCC_OscConfig(&oscinitstruct) != HAL_OK)
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{
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Error_Handler(__FILE__, __LINE__);
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}
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
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clocks dividers */
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clkinitstruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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clkinitstruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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clkinitstruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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clkinitstruct.APB2CLKDivider = RCC_HCLK_DIV1;
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clkinitstruct.APB1CLKDivider = RCC_HCLK_DIV2;
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if (HAL_RCC_ClockConfig(&clkinitstruct, FLASH_LATENCY_2) != HAL_OK)
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{
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Error_Handler(__FILE__, __LINE__);
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}
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}
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/**
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* @brief 错误处理函数。调用后通过 printf 报告错误文件、行数并进入死循环
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void Error_Handler(uint8_t *file, uint32_t line)
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{
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printf("Error occurred: file %s on line %d\r\n", file, line);
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while (1)
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;
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief assert_param 依赖函数
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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printf("Wrong parameters value: file %s on line %d\r\n", file, line);
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while (1)
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;
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}
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#endif
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