使用stm32实现ch375初始化
时间: 2024-05-07 07:21:10 浏览: 139
以下是使用STM32实现CH375初始化的示例代码,可以根据自己的需要进行修改:
```
#include "stm32f10x.h"
#include "ch375.h"
#define CH375_INT_PIN GPIO_Pin_9
#define CH375_INT_PORT GPIOB
#define CH375_INT_EXTI EXTI_Line9
#define CH375_INT_IRQn EXTI9_5_IRQn
void CH375_Init()
{
GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
// 初始化 GPIO
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = CH375_INT_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(CH375_INT_PORT, &GPIO_InitStructure);
// 初始化 EXTI
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9);
EXTI_InitStructure.EXTI_Line = CH375_INT_EXTI;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
// 初始化 NVIC
NVIC_InitStructure.NVIC_IRQChannel = CH375_INT_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// 初始化 CH375
CH375_CMD_INIT();
}
// CH375 中断处理函数
void CH375_INT_IRQHandler(void)
{
if (EXTI_GetITStatus(CH375_INT_EXTI) != RESET)
{
// CH375 中断处理
EXTI_ClearITPendingBit(CH375_INT_EXTI);
}
}
```
其中,CH375_CMD_INIT() 函数是用于初始化 CH375 的函数,可以根据自己的需要进行修改实现。同时,需要注意将该代码加入到主函数中进行调用。
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