stm32lcd显示sprintf转化的变量乱码问题

源代码

sprintf(date,"temper is %s%d",temper);
sprintf(DATA," humi is %s%d",humi);

更新代码

char str1[]={"temperature:"};
char str2[]={"humidity:"};
sprintf(date," %s%d",str1,temper);
sprintf(DATA," %s%d",str2,humi);

启发

这样有个问题，变量实时更新不了，还没解决，在lcd上是乱码，但是在串口还是可以的

只能用暴力了

		 
unsigned char str1[]={"temper"};
unsigned char str2[]={"humidity"};

 sprintf(date," %d",temper);
LCD_DrawFont_GBK24(0, 30, BLACK, WHITE,str1 );
LCD_DrawFont_GBK24(50, 30, BLACK, WHITE, (u8*)date);
 sprintf(DATA,"%d",humi);
LCD_DrawFont_GBK24(0, 60, BLACK, WHITE,str2 );
LCD_DrawFont_GBK24(80, 60, BLACK, WHITE,(u8*) DATA);
	

弄了三个小时，终于弄好了，要给每一个变量规定大小，放置溢出的地址

	 

#include "stm32f10x.h"
#include "led.h"
#include "timer.h"
#include "lcd.h"
#include "stdio.h"
#include "Picture.h"
#include "delay.h"
#include "sys.h"
//#include "pwm.h"
#include "key.h"
#include "usart.h"
#include "dht11.h"

	char date[20];
char DATA[20];
	u8 str1[7]={"temper:"};
	u8 str2[9]={"humidity:"};

int main(void)
{
	
	
	u8 temper;
	u8 humi;
	u8 temp;




	
	delay_init();
  USART_Config();    
  LED_Init();
	DHT11_Init ();
  LCD_Init();
	LCD_Clear(WHITE);
//	LCD_Clear(BLACK);
//	LCD_DrawFont_GBK16(50, 50, BLACK, WHITE,"灯灭");
	
	while(1)
	{

	 temp=DHT11_Read_Data(&temper,&humi);
     if(temp==0)
	     printf("temperature is %d\r\n",temper);
         printf("humidity is %d\r\n",humi);	  
		 sprintf(date," %.7s%.2d",str1,temper);
      LCD_DrawFont_GBK24(0, 50, BLACK, WHITE, (u8*) date);
		sprintf(DATA,"%.9s%.2d",str2,humi);
	  LCD_DrawFont_GBK24(0, 80, BLACK, WHITE,(u8*) DATA);
	 delay_ms(1000);

  }
}

参考http://t.csdn.cn/ndkdt

实验效果