45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
#include "stm32f10x.h"
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uint16_t CountSensor_Count = 0;
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void CountSensor_Init(void) {
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// 初始化Gpio口
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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// 初始化exit
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GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource14);
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EXTI_InitTypeDef EXTI_InitStructure;
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EXTI_InitStructure.EXTI_Line = EXTI_Line14;
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EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStructure.EXTI_LineCmd = ENABLE;
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EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
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EXTI_Init(&EXTI_InitStructure);
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// 初始化nvic
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
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NVIC_InitTypeDef NVIC_InitStructure;
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NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
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NVIC_Init(&NVIC_InitStructure);
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}
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void EXTI15_10_IRQHandler(void) {
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if (EXTI_GetITStatus(EXTI_Line14) == SET) {
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CountSensor_Count++;
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EXTI_ClearITPendingBit(EXTI_Line14);
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}
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}
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uint16_t CountSensor_GetCount(void) {
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return CountSensor_Count;
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}
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