upper.c

串口通讯程序

#include  <reg51.h>

unsigned char code CHARDECODE[14]={};

unsigned char SystemState;  //系统状态,于下位机的状态(SystemStep)同步

bit FirstRun=0;




main()
{
P1=0;
  Delayms(100);

  InitSeries();

  InitSystem();

  while(1)
    {
      switch(SystemState)
        {
          case SYSTEM_READY:  //系统就绪状态
               key=HD7279_KEY();
               switch(key)
                 {
                   case KEY_A_ADD:
                        break;
                   case KEY_A_DEC:
                        break;

                   case KEY_L_ADD:
                        break;

                   case KEY_L_DEC:
                        break;

                   case KEY_D_ADD:
                        break;
                   case KEY_D_DEC:
                        break;

                   case KEY_START:
                        break;

                   case KEY_STOP:  //??
                        break;

                   case KEY_MODE:
                        break;

                   case KEY_INITCOEF:  //初始化系统参数
                        break;

                   default: break;
                 }
               break;
          case SYSTEM_TIMING:  //系统调速状态
               key=HD7279_KEY();

               if(key=KEY_STOP)
                 {
                   ;
                 }
               break;

          case SYSTEM_STOP:  //系统刹车状态
               key=HD7279_KEY();

               if(key=KEY_STOP)
                 {
                   ;
                 }

               break;


          case SYSTEM_INITCOEF:  //系统初始化参数状态
               key=HD7279_KEY();


               break;

          default: break;
        }

    }

}