不曉得因為沒有寫usb的中斷副程式所造成，還是其它原因
因為下面的code有去進行修改為usbip為最低
且sspip為最高的優先權

但仍無法連續正常讀取
能否請各位大大幫忙解答
void UserInit(void)
{
unsigned char test[2];
PIE1 = 0 ;
PIE2 = 0 ;
IPR1 = 0;
IPR2 = 0;

// Initialization for Interrpts !!

RCONbits.IPEN = 1 ;
//Enable Priority interrupt type !!

IPR2bits.USBIP = 1 ; //Set USBIF as Low priority interrupt

IPR1bits.SSPIP =0 ; //Set SSPIF as High priority interrupt

mInitAllLEDs();
mInitAllSwitches();
old_sw2 = sw2;
old_sw3 = sw3;

TRISBbits.TRISB4 = 1 ;
TRISBbits.TRISB5 = 1 ;
TRISDbits.TRISD7 = 0 ;
LED8 = 0 ;

ADCON0 = 0x01 ;
ADCON2 = 0x25 ;
ADCON1 &= 0xFE; // Only AN0 as Analog input !

ADCON0bits.GO = 1 ;

buffer[0]=0;
buffer[1]=0;
buffer[2]=0;
buffer[3]=0;

emulate_mode = TRUE;

Initialize_I2C_Master(); //新增加的函數

}//end UserInit

//按sw3後就進行mssp的read..但此時就會造成當機
//---------------------------------------------------------------------
void ProcessIO(void)
{
unsigned char test[8];
BlinkUSBStatus();
if(!SW3){
if(flag_one==0){
LDByteReadI2C(0x16,0x0d,test[0],2);
Delay100TCYx(10);
mLED_3_On();
flag_one=1;
}
}

// User Application USB tasks
if((usb_device_state < CONFIGURED_STATE)||(UCONbits.SUSPND==1)) return;
Emulate_IO();

}//end ProcessIO