参考样例的主程序

#ifdef T2_CAP
    printf("T2_CAP Test ...\n");
    mTimer2ClkFsys();                                                     
    mTimer_x_SetData(2,0);                                                
    CAP2Init(1);                                                           
    CAP1Init(1);                                                      
    mTimer2RunCTL(1);                                                              
    ET2 = 1;                                                               
    EA = 1;
        
    T2EX = 0;                         
    mDelayuS(500);
    T2EX = 1;
    mDelayuS(500);
    T2EX = 0;
    mDelayuS(500);
    T2EX = 1;
    mDelaymS(1);                                                           
    mTimer2RunCTL( 0 );                                                        
    while(1);         
#endif

中断服务程序

void    mTimer2Interrupt( void ) interrupt INT_NO_TMR2 using 3             
{                                                                             
    mTimer2RunCTL( 0 );                                                
#ifdef  T2_CAP   
    if(EXF2)                                                           
    {
        SCK = ~SCK;                                                        
        Cap[FLAG++] = RCAP2;                                        
        printf("RCAP2 %04x  \n",RCAP2);                                              
        EXF2 = 0;                                                                
    }
    if(CAP1F)                                                              
    {
        Cap[FLAG++] = T2CAP1;                                                   
        printf("T2CAP1 %04x  \n",T2CAP1);                
        CAP1F = 0;                                                        
    }
#endif    
    if(TF2)
    {
        TF2 = 0;                                                                                                                
        SCK = ~SCK;                                                         
    }
    mTimer2RunCTL( 1 );                                                       
}
#endif

模拟T2ex引脚电平变化，串口没打印出任何东西，不知道为何，请教！

哈哈，解决了，宏定义的问题，多谢，下次再来骚扰

图挂了，麻烦问一下具体哪里问题呀？

图呢  没看到