一.硬件配置

（1）添加IP核

（2）分配地址

（3）连线

二.软件编写

(1)timer的处理：载入计数值->设置运行选项（向上向下计数，使能中断，自加载计数值等）->使能，开始运行

(2)interupt的处理：使能microblaze中断->在XPS_INTC注册中断服务函数->使能XPS_INTC中断->使能timer在XPS_INTC里的中断

(3)程序架构：

#include "xparameters.h"
#include "xintc.h" //中断子函数头文件
#include "xtmrctr.h" //定时器子函数头文件

void  timer_int_handler(void);//中断函数声明

int main(void)
{

  microblaze_enable_interrupts();
     
XIntc_RegisterHandler(XPAR_XPS_INTC_0_BASEADDR,
            XPAR_XPS_INTC_0_XPS_TIMER_0_INTERRUPT_INTR, 
            (XInterruptHandler)timer_int_handler,
            (void *)XPAR_XPS_TIMER_0_BASEADDR
            );

  XIntc_mMasterEnable(XPAR_XPS_INTC_0_BASEADDR);
 
  XTmrCtr_mSetLoadReg(XPAR_XPS_TIMER_0_BASEADDR,0,0x20000000);
 
  XTmrCtr_mSetControlStatusReg(XPAR_XPS_TIMER_0_BASEADDR,0,
  XTC_CSR_ENABLE_TMR_MASK | XTC_CSR_ENABLE_INT_MASK |XTC_CSR_AUTO_RELOAD_MASK|XTC_CSR_DOWN_COUNT_MASK );
     
XIntc_mEnableIntr(XPAR_XPS_INTC_0_BASEADDR,XPAR_XPS_TIMER_0_INTERRUPT_MASK);  

  while(1);//等待中断    
  return 0;
}

//中断处理程序：
void  timer_int_handler(void)
{  
  unsigned int timer_csr; 
  timer_csr = XTmrCtr_mGetControlStatusReg(XPAR_XPS_TIMER_0_BASEADDR, 0);
  //...中断处理
 
  XTmrCtr_mSetControlStatusReg(XPAR_XPS_TIMER_0_BASEADDR,0, timer_csr);
}

例子：
void InterruptHandler(void);

int main(void)
{
microblaze_register_handler((XInterruptHandler)InterruptHandler, (void*)0);

#ifdef DEBUG
print("* Registered Interrupt Handler *nr");
#endif

microblaze_enable_interrupts();

// Something useful here.

return 0;
}



void InterruptHandler(void)
{
#ifdef DEBUG
print("* Entering Interrupt *rn");
#endif
microblaze_disable_interrupts();

// Do something useful here :).

microblaze_enable_interrupts();

#ifdef DEBUG
print("* Leaving Interrupt *rn");
#endif
}