fw.c

端点批量传输 eerom的读写 固件自动下载 USB标准请求 GPIF单字节读写 GPIF_FIFO读写 Led显示与键盘扫描等

   USBIE |= bmSUDAV | bmSUTOK | bmSUSP | bmURES | bmHSGRANT;   // Enable selected interrupts
  /////////////////////////////
   EA = 1;                  // Enable 8051 interrupts
#ifndef NO_RENUM
   // Renumerate if necessary.  Do this by checking the renum bit.  If it
   // is already set, there is no need to renumerate.  The renum bit will
   // already be set if this firmware was loaded from an eeprom.
   if(!(USBCS & bmRENUM))
   {
       EZUSB_Discon(TRUE);   // renumerate
   }
#endif

   // unconditionally re-connect.  If we loaded from eeprom we are
   // disconnected and need to connect.  If we just renumerated this
   // is not necessary but doesn't hurt anything
   USBCS &=~bmDISCON;

   CKCON = (CKCON&(~bmSTRETCH)) | FW_STRETCH_VALUE; // Set stretch to 0 (after renumeration)

   // clear the Sleep flag.
   Sleep = FALSE;
   memset(DispBuf,16,4);//无显示数据
   // Task Dispatcher
   while(TRUE)               // Main Loop
   {
      if(GotSUD)            // Wait for SUDAV
      {
         SetupCommand();          // Implement setup command
           GotSUD = FALSE;            // Clear SUDAV flag
      }

      // Poll User Device
      // NOTE: Idle mode stops the processor clock.  There are only two
      // ways out of idle mode, the WAKEUP pin, and detection of the USB
      // resume state on the USB bus.  The timers will stop and the
      // processor will not wake up on any other interrupts.
/*      if (Sleep)
          {
          if(TD_Suspend())
              { 
              Sleep = FALSE;            // Clear the "go to sleep" flag.  Do it here to prevent any race condition between wakeup and the next sleep.
              do
                  {
                    EZUSB_Susp();         // Place processor in idle mode.
                  }
                while(!Rwuen && EZUSB_EXTWAKEUP());
                // Must continue to go back into suspend if the host has disabled remote wakeup
                // *and* the wakeup was caused by the external wakeup pin.
                
             // 8051 activity will resume here due to USB bus or Wakeup# pin activity.
             EZUSB_Resume();   // If source is the Wakeup# pin, signal the host to Resume.      
             TD_Resume();
              }   
          }*/
        TD_Poll();
	    Led_Display();
		temp_data = Analyse_OTimerID();        //查询逻辑定时器
		if(temp_data == OTimerID0)       //1S定时到    
		{
			Second++;
			if(Second == 60) 
			{
				Second = 0;
				Mini++;
				if(Mini == 60)
				{
					Mini = 0;
				}
			}
			Disp_Updata();
		}
		else if(temp_data == OTimerID1)                //WORD LED 闪烁定时器
		{
			IOE ^= WORK_LED;
		}
////////////////////////////////////////////////////////////
		temp_data = OKey_RP_Scan();           //键盘扫描
		switch(temp_data)
		{
			case 3:
				Clock_Updata(0,0);  //分钟加1
				break;
			case 1:
				Clock_Updata(0,1);  //分钟减1
				break;
			case 7:
				Clock_Updata(1,0);  //秒加1
				break;
			case 5:
				Clock_Updata(1,1);  //秒减1
				break;
			case 2:
				Clock_Updata(0,2);  //分钟清零
				break;
			case 4:
				Clock_Updata(0,3);  //分钟置‘59’
				break;
			case 6:
				Clock_Updata(1,2);  //秒清零
				break;
			case 8:
				Clock_Updata(1,3);  //秒置‘59’
				break;
			default:break;
		}
   }
}

// Device request parser
void SetupCommand(void)
{
   void   *dscr_ptr;

   switch(SETUPDAT[1])
   {
      case SC_GET_DESCRIPTOR:                  // *** Get Descriptor
         if(DR_GetDescriptor())
            switch(SETUPDAT[3])         
            {
               case GD_DEVICE:            // Device
                  SUDPTRH = MSB(pDeviceDscr);
                  SUDPTRL = LSB(pDeviceDscr);
                  break;
               case GD_DEVICE_QUALIFIER:            // Device Qualifier
                  SUDPTRH = MSB(pDeviceQualDscr);
                  SUDPTRL = LSB(pDeviceQualDscr);
                  break;
               case GD_CONFIGURATION:         // Configuration
                  SUDPTRH = MSB(pConfigDscr);
                  SUDPTRL = LSB(pConfigDscr);
                  break;
               case GD_OTHER_SPEED_CONFIGURATION:  // Other Speed Configuration
                  SUDPTRH = MSB(pOtherConfigDscr);
                  SUDPTRL = LSB(pOtherConfigDscr);
                  break;
               case GD_STRING:            // String
                  if(dscr_ptr = (void *)EZUSB_GetStringDscr(SETUPDAT[2]))
                  {
                     SUDPTRH = MSB(dscr_ptr);
                     SUDPTRL = LSB(dscr_ptr);
                  }
                  else 
                     EZUSB_STALL_EP0();   // Stall End Point 0
                  break;
               default:            // Invalid request
                  EZUSB_STALL_EP0();      // Stall End Point 0
            }
         break;
      case SC_GET_INTERFACE:                  // *** Get Interface
         DR_GetInterface();
         break;
      case SC_SET_INTERFACE:                  // *** Set Interface
         DR_SetInterface();
         break;
      case SC_SET_CONFIGURATION:               // *** Set Configuration
         DR_SetConfiguration();
         break;
      case SC_GET_CONFIGURATION:               // *** Get Configuration
         DR_GetConfiguration();
         break;
      case SC_GET_STATUS:                  // *** Get Status
         if(DR_GetStatus())
            switch(SETUPDAT[0])
            {
               case GS_DEVICE:            // Device
                  EP0BUF[0] = ((BYTE)Rwuen << 1) | (BYTE)Selfpwr;
                  EP0BUF[1] = 0;
                  EP0BCH = 0;
                  EP0BCL = 2;
                  break;
               case GS_INTERFACE:         // Interface
                  EP0BUF[0] = 0;
                  EP0BUF[1] = 0;
                  EP0BCH = 0;
                  EP0BCL = 2;
                  break;
               case GS_ENDPOINT:         // End Point
                  EP0BUF[0] = *(BYTE xdata *) epcs(SETUPDAT[4]) & bmEPSTALL;
                  EP0BUF[1] = 0;
                  EP0BCH = 0;
                  EP0BCL = 2;
                  break;
               default:            // Invalid Command
                  EZUSB_STALL_EP0();      // Stall End Point 0
            }
         break;
      case SC_CLEAR_FEATURE:                  // *** Clear Feature
         if(DR_ClearFeature())
            switch(SETUPDAT[0])
            {
               case FT_DEVICE:            // Device
                  if(SETUPDAT[2] == 1)
                     Rwuen = FALSE;       // Disable Remote Wakeup
                  else
                     EZUSB_STALL_EP0();   // Stall End Point 0
                  break;
               case FT_ENDPOINT:         // End Point
                  if(SETUPDAT[2] == 0)
                  {
                     *(BYTE xdata *) epcs(SETUPDAT[4]) &= ~bmEPSTALL;
                     EZUSB_RESET_DATA_TOGGLE( SETUPDAT[4] );
                  }
                  else
                     EZUSB_STALL_EP0();   // Stall End Point 0
                  break;
            }
         break;
      case SC_SET_FEATURE:                  // *** Set Feature
         if(DR_SetFeature())
            switch(SETUPDAT[0])
            {
               case FT_DEVICE:            // Device
                  if(SETUPDAT[2] == 1)
                     Rwuen = TRUE;      // Enable Remote Wakeup
                  else if(SETUPDAT[2] == 2)
                     // Set Feature Test Mode.  The core handles this request.  However, it is
                     // necessary for the firmware to complete the handshake phase of the
                     // control transfer before the chip will enter test mode.  It is also
                     // necessary for FX2 to be physically disconnected (D+ and D-)
                     // from the host before it will enter test mode.
                     break;
                  else
                     EZUSB_STALL_EP0();   // Stall End Point 0
                  break;
               case FT_ENDPOINT:         // End Point
                  *(BYTE xdata *) epcs(SETUPDAT[4]) |= bmEPSTALL;
                  break;
            }
         break;
      default:                     // *** Invalid Command
         if(DR_VendorCmnd())
            EZUSB_STALL_EP0();            // Stall End Point 0
   }

   // Acknowledge handshake phase of device request
   EP0CS |= bmHSNAK;
}

// Wake-up interrupt handler
void resume_isr(void) interrupt WKUP_VECT
{
   EZUSB_CLEAR_RSMIRQ();
}