8.6 NVM部分代码的阅读-void tc_RF_operation( )在TC_Main.c中

比较复杂：首先其偏移在offset =0位置，还用到了一个配置文件，nvm_config.txt，要读取其中的一个值，

void tc_RF_operation( )
{
   
   char temp[40*1024];
   long     offset;
   UINT32 length;
   UINT32 ret_len;
   int nvm_fd;
   char nvm_flag;
   
   FILE *fp     = NULL;
   length= sizeof(temp);
   offset=0;
 
   TCMD_TRACE("The length is %d: \n",length);
   memset(temp,0,length);

   nvm_fd = open("/telephony/tel/NVM/nvm_config.txt", O_RDWR);
   read(nvm_fd,&nvm_flag,1);
   close(nvm_fd);

    if(nvm_flag=='0')
    {
        LoadBackNVM(temp,length,offset);
        if(lenBackNVM>1024*10)
        {
            fp = fopen( "/data/telephony/nvm/GsmCalData.nvm", "w" );
            if(fp!=NULL)
            {
                ret_len = fwrite(temp,1,lenBackNVM,fp);
                TCMD_TRACE("the real write length is %d: \n",ret_len);    
                nvm_flag='1';
                nvm_fd = open("/telephony/tel/nvm_config.txt", O_RDWR);
                write(nvm_fd,&nvm_flag,1);
                close(nvm_fd);
            }
            else
            {
                TCMD_TRACE("Error operarion the fileeeee \n");
            }
     
            fclose(fp);
            
        }
          
    }
                
   
   

}