GPIO_InitTypeDef GPIO_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE); RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOH, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ; GPIO_Init(GPIOH, &GPIO_InitStructure); GPIO_PinAFConfig(GPIOH, GPIO_PinSource12, GPIO_AF_TIM5); } { TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_OCInitTypeDef TIM_OCInitStructure; uint32_t uiTIMxCLK; uint16_t usPrescaler; uint16_t usPeriod; uiTIMxCLK = SystemCoreClock / 2; if (_ulFreq < 3000) { usPrescaler = 100 - 1; /* 分频比 = 10 / usPeriod = (uiTIMxCLK / 100) / _ulFreq - 1; / 自动重装的值 / } else / 大于4K的频率，无需分频 / { usPrescaler = 0; / 分频比 = 1 / usPeriod = uiTIMxCLK / _ulFreq - 1; / 自动重装的值 / } TIM_TimeBaseStructure.TIM_Period = usPeriod; TIM_TimeBaseStructure.TIM_Prescaler = usPrescaler; TIM_TimeBaseStructure.TIM_ClockDivision = 0; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure); TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = 4; TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; TIM_OC3Init(TIM5, &TIM_OCInitStructure); TIM_OC3PreloadConfig(TIM5, TIM_OCPreload_Enable); TIM_ARRPreloadConfig(TIM5, ENABLE); TIM_Cmd(TIM5, ENABLE); }配置有问题吗

根据给出的代码，配置似乎没有问题。该代码是用于配置STM32的GPIO和定时器（TIM5）来控制PWM输出。首先，对GPIOH引脚12进行配置，将其设置为复用功能（GPIO_Mode_AF），并将其连接到TIM5（GPIO_PinAFConfig函数）。然后，对TIM5进行配置，设置定时器的时钟分频和自动重装值（TIM_TimeBaseInit函数），以及PWM的输出模式、输出状态、脉冲值和极性（TIM_OCInitStructure结构体）。

然而，具体是否存在问题还需要根据您的具体要求和硬件环境来确定。如果您有特定的问题或需求，请提供更多详细信息以便我们更好地帮助您。

相关问题

#include "dac.h" void DAC1_Init(void) { GPIO_InitTypeDef GPIO_InitStructure; DAC_InitTypeDef DAC_InitStructure; //使能端口和DAC时钟 RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENA

// ...
}
}

这只是一个简单的示例代码，你可以根据自己的需求BLE); 	 	    //配置GPIOA.4为模拟输入 	    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; 	    GPIO_InitStructure.GPIO进行修改和完善。注意，这里的代码以USART1为例，如果需要使用其他USART外设，需要相应_Mode = GPIO_Mode_AN; 	    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; 	    GPIO_Init(GPIOA,地修改配置和初始化函数。请参考芯片的数据手册和固件库文件以获取更详细的信息。

在保持原来的代码逻辑的条件下，根据STM32F407的特性，把下面STM32F1的代码移植到STM32F407。void ExtiGpioInit(void) { GPIO_InitTypeDef GPIO_InitStruct; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE); GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN_FLOATING; GPIO_InitStruct.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_5 ; GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOC, &GPIO_InitStruct); } void ExtiNvicInit(void) { NVIC_InitTypeDef NVIC_InitStructure; NVIC_InitStructure.NVIC_IRQChannel = EXTI4_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn ; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); } void ExtiModeInit(void) { EXTI_InitTypeDef EXTI_InitStructure; GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource4); EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_Line = EXTI_Line4; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource5); EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_Line = EXTI_Line5; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); }

void ExtiGpioInit(void)
{
GPIO_InitTypeDef GPIO_InitStruct;

RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);

GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_5 ;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOC, &GPIO_InitStruct);

}

void ExtiNvicInit(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

NVIC_InitStructure.NVIC_IRQChannel = EXTI4_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn ;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

void ExtiModeInit(void)
{
EXTI_InitTypeDef EXTI_InitStructure;

SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOC, EXTI_PinSource4);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_Line = EXTI_Line4;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);

SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOC, EXTI_PinSource5);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_Line = EXTI_Line5;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}