fw.c

呵呵

      // 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 = OKey_RP_Scan();
	  //if(temp_data != 0xFF)
	 // {
	  //	OKey_Value = temp_data;
	  //}
   }
}

// 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();
}

void timer0_isr(void) interrupt TMR0_VECT
{
  if (((IOD&0x08)!=1)&&((IOB&0x80)!=0)&&(data_enable!=1) )  //IOD.3=low and IOB.7=low
  { //AD_BUSY low ,clk rasing  
     switch (AD_State)//(M)
         {case 0:   //send command word
    		  if(AD_Cfg_State<8)
	    	  {
			      AD_Cfg_Pin=AD_Cfg_Byte&0x01;   AD_Cfg_Byte=AD_Cfg_Byte>>1;AD_Cfg_State++; }
	    	   else
	    	   {
		          AD_Cfg_State=0; AD_State=1; }
        	  IOB=~IOB; 
              break;
		  case 1:   //recive AD result
  			 if(AD_Rec_State<12)
	      	 {
		         AD_Rec_Data=IOD&0x01; tmp_data=(AD_Rec_Data|tmp_data);AD_Rec_State++; }
	    	 else
	      	 { 
				  AD_Rec_State=0; AD_State=0;/*M=1; W2=1;*///enable USB read data
                  ChannelNum=AD_Channel<<12;
				  AD_Result=tmp_data|ChannelNum;
			      data_enable=1;
                  tmp_data=0x0000;//clear
				                  //Siwth AD Config Byte
		 /*	switch (Channel_Cha)
			 {case 0:
			        AD_Channel++; 
					if(AD_Channel>3) {AD_Channel=0;Channel_Cha=1;}
					AD_Cfg_Byte=CON[AD_Channel]; 
					 break;
		       case 1:
			        AD_Channel=2;
					AD_Cfg_Byte=CON[AD_Channel];
					Channel_Cha=0;
                    AD_Channel=0;
					break;
			 }*/
			   AD_Channel++;
              // AD_Channel=2;
	        	   if(AD_Channel>3) {AD_Channel=0;}
  				    AD_Cfg_Byte=CON[AD_Channel];
		      }
	          tmp_data=tmp_data<<1;  
			  IOB=~IOB;
			  break;
	   }
 }
 else 
   IOB=~IOB;
}