forked from logzhan/RobotHardware-UESTC
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include "timer.h"
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#include "nvic.h"
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void Timer_InitBase(TIM_TypeDef *TIMx, uint32_t Time_us)
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{
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TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
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if (TIMx == TIM2)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); /* enable clock */
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TIM2_NVIC_Configuration(); // enable interruptation
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}
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else if (TIMx == TIM3)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); /* enable clock */
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TIM3_NVIC_Configuration(); // enable interruptation
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}
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else if (TIMx == TIM4)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); /* enable clock */
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TIM4_NVIC_Configuration(); // enable interruptation
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}
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else if (TIMx == TIM5)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE); /* enable clock */
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TIM5_NVIC_Configuration(); // enable interruptation
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}
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else if (TIMx == TIM6)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM6, ENABLE); /* enable clock */
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TIM6_NVIC_Configuration(); // enable interruptation
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}
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else if (TIMx == TIM7)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM7, ENABLE); /* enable clock */
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TIM7_NVIC_Configuration(); // enable interruptation
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}
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TIM_DeInit(TIMx);
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TIM_TimeBaseStructure.TIM_Period = Time_us - 1; /* the value of auto reload register */
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TIM_TimeBaseStructure.TIM_Prescaler = (72 - 1); /* prescler : 72M/72 */
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/* ClockDivision*/
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if (TIMx == TIM3 || TIMx == TIM4)
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{
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TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV4;
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}
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else
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{
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TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
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}
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TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; /* count upwards */
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TIM_TimeBaseInit(TIMx, &TIM_TimeBaseStructure);
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TIM_ClearFlag(TIMx, TIM_FLAG_Update); /* clear interrupt flags */
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TIM_ITConfig(TIMx, TIM_IT_Update, ENABLE);
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TIM_Cmd(TIMx, ENABLE);
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}
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#ifdef __cplusplus
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}
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#endif
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