求教#include "stm32f10x_iwdg.h"

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楼主 | 2025-2-28 11:32 | 只看该作者回帖奖励

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STM32F10X, include, ar, TE, AD, AC

独立看门狗实验中在《iwdg.c》文件中的代码如下：求教这段代码里为什么不能少#include "stm32f10x_iwdg.h"这句。少了这句就编译报错！加上就无错无警告。但是在别的程序中又不需要添加这是为什么呢？
#include "iwdg.h"
#include "led.h"
#include "stm32f10x_iwdg.h"
void IWDG_Init(u8 prer,u16 rlr)
{
      IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);

      IWDG_SetPrescaler(prer);

      IWDG_SetReload(rlr);

      IWDG_ReloadCounter();

      IWDG_Enable();
}

void IWDG_Feed(void)
{
      IWDG_ReloadCounter();
}

求教这段代码里为什么不能少#include "stm32f10x_iwdg.h"这句。少了这句就编译报错！但是在别的程序中又不需要添加这是为什么呢？

..\HARDWARE\IWDG\iwdg.c(17): warning:  #223-D: function "IWDG_WriteAccessCmd" declared implicitly
      IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);  //使能对寄存器IWDG_PR和IWDG_RLR的写操作
..\HARDWARE\IWDG\iwdg.c(17): error:  #20: identifier "IWDG_WriteAccess_Enable" is undefined
      IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);  //使能对寄存器IWDG_PR和IWDG_RLR的写操作
..\HARDWARE\IWDG\iwdg.c(19): warning:  #223-D: function "IWDG_SetPrescaler" declared implicitly
      IWDG_SetPrescaler(prer);  //设置IWDG预分频值:设置IWDG预分频值为64
..\HARDWARE\IWDG\iwdg.c(21): warning:  #223-D: function "IWDG_SetReload" declared implicitly
      IWDG_SetReload(rlr);  //设置IWDG重装载值
..\HARDWARE\IWDG\iwdg.c(23): warning:  #223-D: function "IWDG_ReloadCounter" declared implicitly
      IWDG_ReloadCounter();  //按照IWDG重装载寄存器的值重装载IWDG计数器
..\HARDWARE\IWDG\iwdg.c(25): warning:  #223-D: function "IWDG_Enable" declared implicitly
      IWDG_Enable();  //使能IWDG
..\HARDWARE\IWDG\iwdg.c(30): warning:  #223-D: function "IWDG_ReloadCounter" declared implicitly
      IWDG_ReloadCounter();

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