我用自己做的COM-CAN收发器以及F2407能够很好的实现通讯，为什么GZ60不能收发呢？请各位大虾指教，我用的是GZ60的DEMO板作为硬件，我的程序如下：
CONFIG2=0x0f;
CONFIG1=0x39;
DDRC_DDRC0=1;
DDRC_DDRC1=0;
DDRC_DDRC5=0;
DDRC_DDRC6=0;
init_CAN();
DDRF_DDRF0=1;
DDRF_DDRF1=1;
DDRF_DDRF2=1;
DDRF_DDRF3=1;
DDRF_DDRF4=1;
DDRF_DDRF5=1;
DDRF_DDRF6=1;
DDRF_DDRF7=1;
EnableInterrupts; /* enable interrupts */
PTF_PTF0=1;
PTF_PTF1=1;
for(;;) {while(PTC_PTC6==1);
PTF_PTF0=0;
PTF_PTF1=1;
delay(500);
temp=CTFLG;
temp=temp&0x07;
switch(temp){
case 1:trans(0);while(CTFLG_TXE0==0);break;
case 2:trans(1);while(CTFLG_TXE1==0);break;
case 3:trans(0);while(CTFLG_TXE0==0);break;
case 4:trans(2);while(CTFLG_TXE2==0);break;
case 5:trans(0);while(CTFLG_TXE0==0);break;
case 6:trans(1);while(CTFLG_TXE1==0);break;
case 7:trans(0);while(CTFLG_TXE0==0);break;
default : break; };
while(PTC_PTC5==1);
PTF_PTF1=0;
PTF_PTF0=1;
};}
void init_CAN() {//CAN初始化
CMCR0=0x01;
CMCR1=0x04;
CBTR0=0x40;//4M=外部晶振8M/2
CBTR1=0xba;//3,3,10,250K
//CIDAC=0x00;
//CIDAR0=0x0c;
//CIDAR1=0xfe;
//CIDAR2=0x27;
//CIDAR3=0x43;
CIDMR0=0xff;
CIDMR1=0xff;
CIDMR2=0xff;
CIDMR3=0xff;
CMCR0=0x00;
CRIER=0x0f;
while(CMCR0!=0x00);
}
interrupt void Can_int(void)//中断子程序
{
//unsigned char i;
//j=&REC_IDR0;
//DisableInterrupts;
if(CRFLG==CRFLG&0x01){
//for(i=0;i<=7;i++,j++){
//receive=*j;
receive[0]= REC_DSR0;
receive[1]= REC_DSR1;
receive[2]= REC_DSR2;
receive[3]= REC_DSR3;
receive[4]= REC_DSR4;
receive[5]= REC_DSR5;
receive[6]= REC_DSR6;
receive[7]= REC_DSR7;
CRFLG=0x01;
delay(500);
temp=CTFLG;
temp=temp&0x07;
while(temp!=0){
trans(0);
}
} ;
//EnableInterrupts;
} | 
