echo//TIM4_CH2(PB7)->trigGPIO_InitTypeDefGPIO_InitStructure;EXTI_InitTypeDefEXTI_InitStructure;//NVIC_InitTypeDefNVIC_InitStructure;RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);GPIO_InitStructure.GPIO_Pin=GPIO_Pin_7;GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;GPIO_Init(GPIOB,&GPIO_InitStructure);GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6;GP-IMDN开发者社群-imdn.cn"> echo//TIM4_CH2(PB7)->trigGPIO_InitTypeDefGPIO_InitStructure;EXTI_InitTypeDefEXTI_InitStructure;//NVIC_InitTypeDefNVIC_InitStructure;RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);GPIO_InitStructure.GPIO_Pin=GPIO_Pin_7;GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;GPIO_Init(GPIOB,&GPIO_InitStructure);GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6;GP - IMDN开发者社群-imdn.cn">

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光流，超声波

于 2022-01-25 发布文件大小:4.62 MB

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可以给做电赛的朋友 #include "includes.h" /********************************* 使用外部中断和systik定时器来做超声波部分警告：超声波使用systick时，其他设备不允许使用systick ***********************************/ unsigned char ultrasonic_systick = 0;//等于0时，超声波没有使用SYSTICK unsigned char ultrasonic_ok = 0; unsigned int ultrasonic_Data; float ultrasonic_Hight; //此部分初始化外部中断以及各部分用到的引脚 void ultrasonic_Init(void) { //使用TIM4_CH1，TIM4_CH2用于超声波引脚 //TIM4_CH1(PB6) -> echo //TIM4_CH2(PB7) -> trig GPIO_InitTypeDef GPIO_InitStructure; EXTI_InitTypeDef EXTI_InitStructure; // NVIC_InitTypeDef NVIC_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB ,ENABLE); GPIO_InitStructure.GPIO_Pin=GPIO_Pin_7; GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP; GPIO_Init(GPIOB,&GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6; GP

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