124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
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//Ӳ<><D3B2><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
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#include "sys.h"
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#include "tim.h"
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/**
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* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ж<EFBFBD>
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* @param TIMx: <EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>
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* @param _ulFreq: <EFBFBD><EFBFBD>ʱƵ<EFBFBD><EFBFBD> (Hz)<EFBFBD><EFBFBD>0 <EFBFBD><EFBFBD>ʾ<EFBFBD>ر<EFBFBD>
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* @param _PreemptionPriority: <EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>
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* @param _SubPriority: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>
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*/
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void TIM_Set(TIM_TypeDef *TIMx, double _ulFreq, uint8_t _PreemptionPriority, uint8_t _SubPriority)
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{
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TIM_HandleTypeDef TimHandle = {0};
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uint16_t usPeriod;
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uint16_t usPrescaler;
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uint32_t uiTIMxCLK;
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//ʹ<><CAB9>TIMʱ<4D><CAB1>
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if (TIMx == TIM1)
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__HAL_RCC_TIM1_CLK_ENABLE();
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else if (TIMx == TIM2)
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__HAL_RCC_TIM2_CLK_ENABLE();
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else if (TIMx == TIM3)
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__HAL_RCC_TIM3_CLK_ENABLE();
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else if (TIMx == TIM4)
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__HAL_RCC_TIM4_CLK_ENABLE();
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else if (TIMx == TIM5)
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__HAL_RCC_TIM5_CLK_ENABLE();
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else if (TIMx == TIM6)
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__HAL_RCC_TIM6_CLK_ENABLE();
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else if (TIMx == TIM7)
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__HAL_RCC_TIM7_CLK_ENABLE();
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else if (TIMx == TIM8)
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__HAL_RCC_TIM8_CLK_ENABLE();
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else if (TIMx == TIM12)
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__HAL_RCC_TIM12_CLK_ENABLE();
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else if (TIMx == TIM13)
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__HAL_RCC_TIM13_CLK_ENABLE();
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else if (TIMx == TIM14)
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__HAL_RCC_TIM14_CLK_ENABLE();
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else if (TIMx == TIM15)
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__HAL_RCC_TIM15_CLK_ENABLE();
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else if (TIMx == TIM16)
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__HAL_RCC_TIM16_CLK_ENABLE();
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else if (TIMx == TIM17)
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__HAL_RCC_TIM17_CLK_ENABLE();
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if ((TIMx == TIM1) || (TIMx == TIM8) || (TIMx == TIM15) || (TIMx == TIM16) || (TIMx == TIM17))
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uiTIMxCLK = SystemCoreClock / 2; //APB2 <20><>ʱ<EFBFBD><CAB1>ʱ<EFBFBD><CAB1> = 200M
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else
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uiTIMxCLK = SystemCoreClock / 2; //APB1 <20><>ʱ<EFBFBD><CAB1> = 200M
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if (_ulFreq < 100)
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{
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usPrescaler = 10000 - 1; //<2F><>Ƶ<EFBFBD><C6B5> = 10000
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usPeriod = ((double)uiTIMxCLK / 10000.0) / _ulFreq - 1.0; //<2F>Զ<EFBFBD><D4B6><EFBFBD>װ<EFBFBD><D7B0>ֵ
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}
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else if (_ulFreq < 3000)
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{
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usPrescaler = 100 - 1; //<2F><>Ƶ<EFBFBD><C6B5> = 100
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usPeriod = ((double)uiTIMxCLK / 100.0) / _ulFreq - 1.0; //<2F>Զ<EFBFBD><D4B6><EFBFBD>װ<EFBFBD><D7B0>ֵ
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}
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else //<2F><><EFBFBD><EFBFBD> 4k <20><>Ƶ<EFBFBD><C6B5>
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{
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usPrescaler = 0; //<2F><>Ƶ<EFBFBD><C6B5> = 1
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usPeriod = (double)uiTIMxCLK / _ulFreq - 1.0; //<2F>Զ<EFBFBD><D4B6><EFBFBD>װ<EFBFBD><D7B0>ֵ
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}
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//<2F><>ʱ<EFBFBD><CAB1><EFBFBD>жϸ<D0B6><CFB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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TimHandle.Instance = TIMx;
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TimHandle.Init.Prescaler = usPrescaler;
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TimHandle.Init.Period = usPeriod;
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TimHandle.Init.ClockDivision = 0;
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TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
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TimHandle.Init.RepetitionCounter = 0;
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TimHandle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
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HAL_TIM_Base_Init(&TimHandle);
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//ʹ<>ܶ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ж<EFBFBD>
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__HAL_TIM_ENABLE_IT(&TimHandle, TIM_IT_UPDATE);
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//<2F><><EFBFBD><EFBFBD>TIM<49><4D>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
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{
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uint8_t irq = 0;
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if (TIMx == TIM1)
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irq = TIM1_UP_IRQn;
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else if (TIMx == TIM2)
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irq = TIM2_IRQn;
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else if (TIMx == TIM3)
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irq = TIM3_IRQn;
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else if (TIMx == TIM4)
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irq = TIM4_IRQn;
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else if (TIMx == TIM5)
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irq = TIM5_IRQn;
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else if (TIMx == TIM6)
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irq = TIM6_DAC_IRQn;
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else if (TIMx == TIM7)
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irq = TIM7_IRQn;
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else if (TIMx == TIM8)
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irq = TIM8_UP_TIM13_IRQn;
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else if (TIMx == TIM12)
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irq = TIM8_BRK_TIM12_IRQn;
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else if (TIMx == TIM13)
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irq = TIM8_UP_TIM13_IRQn;
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else if (TIMx == TIM14)
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irq = TIM8_TRG_COM_TIM14_IRQn;
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else if (TIMx == TIM15)
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irq = TIM15_IRQn;
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else if (TIMx == TIM16)
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irq = TIM16_IRQn;
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else if (TIMx == TIM17)
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irq = TIM17_IRQn;
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HAL_NVIC_SetPriority((IRQn_Type)irq, _PreemptionPriority, _SubPriority);
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HAL_NVIC_EnableIRQ((IRQn_Type)irq);
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}
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HAL_TIM_Base_Start(&TimHandle);
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}
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