MSP430G2553 (LaunchPad)与TMP100进行I2C通信读取温度的程序，调试已通过

#include  "msp430g2553.h"
#include  "OLED_SSD1306.h"
#include  "math.h"


void disp_numb(int display_data)                // display the speed
{

      unsigned  char Display_val[7];  // the re to display   with a  '.'

      OLED_SSD1306_Init();     //initiate the screen

                         //数字转化为ASCII码时 应当加0X30
      Display_val[0] =(display_data%10000/1000)+0x30; //  百位
      Display_val[1] =(display_data%1000/100)+0x30;
      Display_val[2] =0x2e;
      Display_val[3] =(display_data%100/10)+0x30;      //  个位
      Display_val[4] =(display_data%10)+0x30;         //  小数点后一位
      Display_val[5]='C';
      Display_val[6]='\0';


    if(((display_data%10000/1000)==0)&&((display_data%1000/100)==0))  // display the value
      OLED_SSD1306_Display8x16Str(2,32, &Display_val[2]);
    else if((display_data%10000/1000)==0)
      OLED_SSD1306_Display8x16Str(2,24, &Display_val[1]);
    else
      OLED_SSD1306_Display8x16Str(2,16, &Display_val[0]);

}