stm32f407gpio_initstructure.gpio_mode的输入模式的代码
时间: 2024-05-11 20:20:27 浏览: 80
以下是在STM32CubeMX中生成的代码示例,用于初始化GPIO的输入模式:
```
/* GPIO_InitStruct是GPIO_InitTypeDef类型的结构体变量 */
GPIO_InitStruct.Pin = GPIO_PIN_0; /* 选择要配置的GPIO引脚 */
GPIO_InitStruct.Mode = GPIO_MODE_INPUT; /* 配置为输入模式 */
GPIO_InitStruct.Pull = GPIO_NOPULL; /* 不使用上下拉电阻 */
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); /* 初始化GPIO */
```
其中,`GPIO_PIN_0`代表要配置的GPIO引脚号,`GPIO_MODE_INPUT`代表输入模式,`GPIO_NOPULL`代表不使用上下拉电阻,`GPIOA`代表要初始化的GPIO端口号。这里以GPIOA的第0号引脚为例,如果需要配置其他引脚,只需要修改相应的参数即可。
相关问题
void Matrix_ssKey_Pin_Init(void)//目前代码为PA0-2,PA3,PA12-15 { GPIO_InitTypeDef GPIO_InitStructure; RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_4;//没找到PA3引脚需要的话可以改 GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; GPIO_Init(GPIOA,&GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_11 | GPIO_Pin_10 | GPIO_Pin_9;//需要上拉 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; // GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; GPIO_Init(GPIOA,&GPIO_InitStructure); } 无法执行该段函数 芯片为stm32f407zgt6且无报错
这段代码是用于初始化STM32F407ZGT6芯片上的GPIO引脚。根据代码中的注释,该函数将PA0、PA1、PA2、PA4设置为输出模式,而PA9、PA10、PA11、PA12设置为输入模式,并且需要上拉。
在您提供的信息中,没有指明无法执行的具体原因或报错信息。如果您遇到无法执行该函数的问题,可能有以下几个方面需要检查:
1. 确保在调用该函数之前已经包含了正确的头文件,例如"stm32f4xx.h"。
2. 检查是否正确配置了芯片的时钟,确保已经启用了GPIOA的时钟。
3. 检查是否正确初始化了GPIOA引脚所对应的管脚号,确保没有使用错误的引脚。
4. 如果经过以上检查仍然无法执行该函数,并且没有报错信息,可以尝试使用调试器来跟踪代码执行过程,以确定具体出错的位置。
请提供更多的信息,例如具体的错误信息或其他相关代码,以便更准确地帮助您解决问题。
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);
}
阅读全文