stm32点亮led中出现的问题error18:expect a ")"

Question

问题遇到的现象和发生背景

在kile5中，stm32“使用寄存器点亮一个led”的编程问题

问题相关代

在kile5中，stm32“使用寄存器点亮一个led”的编程问题

stm32f10x.h
#define PERIPH_BASE         (unsigned int(0x40000000))
#define APB1PERIPH_BASE      PERIPH_BASE
#define APB2PERIPH_BASE     (APB1PERIPH_BASE+0x10000)
#define AHBPERIPH_BASE      (APB2PERIPH_BASE+0x20000)

#define RCC_BASE             (AHBPERIPH_BASE+0x1000)
#define GPIOB_BASE           (APB2PERIPH_BASE+0xC00)

#define RCC_APB2ENR          *(unsigned int*)(RCC_BASE+0x18)
    
#define GPIOB_CRL            *(unsigned int*)(GPIOB_BASE+0x00)
#define GPIOB_ODR            *(unsigned int*)(GPIOB_BASE+0x0C)
#define GPIOB_CRH            *(unsigned int*)(GPIOB_BASE+0x04)
                              
main.c
#include "stm32f10x.h"


int main (void)
{
#if 0    
    //打开GPIOB端口的时钟；
  *(unsigned int *) 0x40021018 |= ((1)<<3); 
    //配置IO口为输出；
    *(unsigned int *) 0x40010C00 |= (1<<(4*5));
  //控制ODR寄存器；
  *(unsigned int *) 0x40010C0C &=~(1<<0);
#else
    //打开GPIOB端口的时钟；
    RCC_APB2ENR |= ((1)<<3); 
    //配置IO口为输出；
     GPIOB_CRL|= (1<<(4*5));
    //控制ODR寄存器；
    GPIOB_ODR  &=~(1<<0);
    
#endif        

}


void SystemInit (void)
{
  
}



```码，请勿粘贴截图 


###### 运行结果及报错内容 

```c
main.c(15): error:  #18: expected a ")"
      
CC_APB2ENR |= ((1)<<3); 
main.c(17): error:  #18: expected a ")"
      
PIOB_CRL|= (1<<(4*5));
main.c(19): error:  #18: expected a ")"
      
PIOB_ODR  &=~(1<<0);
main.c: 0 warnings, 3 errors
".\Template-REG.axf" - 3 Error(s), 0 Warning(s).
Target not created.

请问问题在哪，该如何解决？

Answer 1

RCC_APB2ENR 换成 RCC->APB2ENR