抱错。。我该怎么办另外求科普为什么要用extern

只看该作者 · 2014-8-28 13:55

*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "lcd.h"
#include "stdio.h"
#include "led.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint32_t TimingDelay =0;
extern uint8_t leds;
/* Private function prototypes -----------------------------------------------*/
void Delay_Ms(uint32_t nTime);
void NVIC_Configuration(void);
void TIM_Config(void);
void LED_Init(void);
/* Private functions ---------------------------------------------------------*/

/**
  * @说明    主函数
  * @参数    None
  * @返回值 None
  */
int main(void)
{
uint8_t  string[20];  //

TIM_Config();
LED_Init();

//LCD工作模式配置
STM3210B_LCD_Init();
LCD_Clear(White);
LCD_SetTextColor(White);
LCD_SetBackColor(Blue);

LCD_ClearLine(Line0);
LCD_ClearLine(Line1);
LCD_ClearLine(Line2);
LCD_ClearLine(Line3);
LCD_ClearLine(Line4);

LCD_DisplayStringLine(Line1,"    TIMER DEMO    ");
LCD_DisplayStringLine(Line3," See The LEDs! ");

SysTick_Config(SystemCoreClock/1000);  //1ms中断一次

LCD_SetTextColor(Blue);
LCD_SetBackColor(White);

while(1){
//LED
GPIO_Write(GPIOC,~(1<<(leds+7)));
GPIO_SetBits(GPIOD,GPIO_Pin_2);
GPIO_ResetBits(GPIOD,GPIO_Pin_2);
//LCD
sprintf(string,"%s%d","-- LED ON:LD",leds);
LCD_DisplayStringLine(Line6,string);
}
}
错误是..\SRE\main.c(64): warning:  #167-D: argument of type "uint8_t *" is incompatible with parameter of type "char *restrict"
..\SRE\main.c:                sprintf(string,"%s%d","-- LED ON:LD",leds);