51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
#include "stm32_build_defines.h"
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#include "stm32_def.h"
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extern void SystemClock_Config(void) {
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RCC_OscInitTypeDef RCC_OscInitStruct;
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_PeriphCLKInitTypeDef PeriphClkInit;
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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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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI
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|RCC_OSCILLATORTYPE_HSI48;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSICalibrationValue = 16;
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RCC_OscInitStruct.LSIState = RCC_LSI_ON;
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RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
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RCC_OscInitStruct.PLL.PLLMUL = RCC_PLLMUL_4;
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RCC_OscInitStruct.PLL.PLLDIV = RCC_PLLDIV_2;
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HAL_RCC_OscConfig(&RCC_OscInitStruct);
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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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HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1);
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PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1|RCC_PERIPHCLK_USART2
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|RCC_PERIPHCLK_I2C1|RCC_PERIPHCLK_RTC
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|RCC_PERIPHCLK_USB;
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PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
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PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
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PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_PCLK1;
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PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
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PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_HSI48;
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HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
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HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
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HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
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/* SysTick_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
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}
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