ddllxxrr笔记十二 群灯乱舞

 

*---------------------------------------------------------------------------------------------------------*/

#include <stdio.h>

/*---------------------------------------------------------------------------------------------------------*/

/*  Include hear file                                                                       */

/*---------------------------------------------------------------------------------------------------------*/

#include "NUC1xx.h"

/*----------------------------------------------------------------------------

  Define variable

  ----------------------------------------------------------------------------*/

 static uint32_t TimerCOUN=0;

 static uint32_t TimerCOUN1=0;

 static uint32_t TimerCOUN2=0;

 static uint32_t TimerCOUN3=0;

 

/*----------------------------------------------------------------------------

  Function subroutine

  ----------------------------------------------------------------------------*/

void Delay(uint32_t delayCnt)

{

    while(delayCnt--)

    {

        __NOP();

        __NOP();

    }

}

uint32_t GetTDR(void)

{

 return  TIMER0->TDR;

}

uint32_t GetTDR1(void)

{

 return  TIMER1->TDR;

}

uint32_t GetTDR2(void)

{

 return  TIMER2->TDR;

}

uint32_t GetTDR3(void)

{

 return  TIMER3->TDR;

}

/*----------------------------------------------------------------------------

  Interrupt subroutine

  ----------------------------------------------------------------------------*/

void TMR0_IRQHandler(void) // Timer0 interrupt subroutine 

{

  TIMER0->TISR.TIF =1; 

 TimerCOUN++;

     

}

void TMR1_IRQHandler(void) // Timer1 interrupt subroutine 

{

  TIMER1->TISR.TIF =1; 

 TimerCOUN1++;

     

}

void TMR2_IRQHandler(void) // Timer2 interrupt subroutine 

{

  TIMER2->TISR.TIF =1; 

 TimerCOUN2++;

    

}

void TMR3_IRQHandler(void) // Timer3 interrupt subroutine 

{

  TIMER3->TISR.TIF =1; 

 TimerCOUN3++;

     

}

/*----------------------------------------------------------------------------

  MAIN function

  ----------------------------------------------------------------------------*/

int32_t main (void)

{

 //unsigned int TEMP;

 //uint32_t TEMP;

 GPIOA->PMD.PMD2=1; //分别设连接LED管脚为，IO模式

    GPIOA->PMD.PMD3=1;

    GPIOA->PMD.PMD4=1;

    GPIOA->PMD.PMD5=1;

 NVIC_DisableIRQ(TMR0_IRQn); //Disable Timer0 interrupt

 outpw(&TIMER0->TCSR ,0 ); //Disable Timer0//清Timer0的中断标志                              

 /* Step 1. Enable and Select Timer clock source */          

 SYSCLK->CLKSEL1.TMR0_S = 4; //Select 22Mhz for Timer0 clock source 

    SYSCLK->APBCLK.TMR0_EN =1; //Enable Timer0 clock source

 /* Step 2. Select Operation mode */ 

 TIMER0->TCSR.MODE=1;  //定时器工作在周期模式.当中断使能时，

 //一旦定时器计数器的值(24位递增计数器)等于比较寄存器（TCMPR）的值，

 //就会触发定时器中断。

 /* Step 3. Select Time out period = (Period of timer clock input) * (8-bit Prescale + 1) * (24-bit TCMP)*/

 TIMER0->TCSR.PRESCALE=0; // Set Prescale [0~255]

 TIMER0->TCMPR= 2765;//TICR = 2765;  // Set TICR(TCMP) [0~16777215]

        // (1/22118400)*(0+1)*(2765)= 125.01usec or 7999.42Hz

 /* Step 4. Enable interrupt */

 TIMER0->TCSR.IE = 1;

 TIMER0->TISR.TIF = 1;  //Write 1 to clear for safty  

 NVIC_EnableIRQ(TMR0_IRQn); //Enable Timer0 Interrupt

 /* Step 5. Enable Timer module */

 TIMER0->TCSR.CRST = 1;  //Reset up counter

 TIMER0->TCSR.CEN = 1;  //Enable Timer0

   TIMER0->TCSR.TDR_EN=1;  // Enable TDR function

    //以下是TIMER1的设置

  /* Step 1. Enable and Select Timer clock source */          

 SYSCLK->CLKSEL1.TMR1_S = 4; //Select 22Mhz for Timer0 clock source 

    SYSCLK->APBCLK.TMR1_EN =1; //Enable Timer0 clock source

  

  /* Step 2. Select Operation mode */ 

 TIMER1->TCSR.MODE=1;  //定时器工作在周期模式.当中断使能时，

 //一旦定时器计数器的值(24位递增计数器)等于比较寄存器（TCMPR）的值，

 //就会触发定时器中断。

 /* Step 3. Select Time out period = (Period of timer clock input) * (8-bit Prescale + 1) * (24-bit TCMP)*/

 TIMER1->TCSR.PRESCALE=20; // Set Prescale [0~255]

 TIMER1->TCMPR= 2765;//TICR = 2765;  // Set TICR(TCMP) [0~16777215]

        // (1/22118400)*(0+1)*(2765)= 125.01usec or 7999.42Hz

 /* Step 4. Enable interrupt */

 TIMER1->TCSR.IE = 1;

 TIMER1->TISR.TIF = 1;  //Write 1 to clear for safty  

 NVIC_EnableIRQ(TMR1_IRQn); //Enable Timer0 Interrupt

 /* Step 5. Enable Timer module */

 TIMER1->TCSR.CRST = 1;  //Reset up counter

 TIMER1->TCSR.CEN = 1;  //Enable Timer0

   TIMER1->TCSR.TDR_EN=1;  // Enable TDR function

     //以下设TIMER2的设置

  /* Step 1. Enable and Select Timer clock source */          

 SYSCLK->CLKSEL1.TMR2_S = 4; //Select 22Mhz for Timer0 clock source 

    SYSCLK->APBCLK.TMR2_EN =1; //Enable Timer0 clock source

   /* Step 2. Select Operation mode */ 

 TIMER2->TCSR.MODE=1;  //定时器工作在周期模式.当中断使能时，

 //一旦定时器计数器的值(24位递增计数器)等于比较寄存器（TCMPR）的值，

 //就会触发定时器中断。

 /* Step 3. Select Time out period = (Period of timer clock input) * (8-bit Prescale + 1) * (24-bit TCMP)*/

 TIMER2->TCSR.PRESCALE=10; // Set Prescale [0~255]

 TIMER2->TCMPR= 2765;//TICR = 2765;  // Set TICR(TCMP) [0~16777215]

        // (1/22118400)*(0+1)*(2765)= 125.01usec or 7999.42Hz

 /* Step 4. Enable interrupt */

 TIMER2->TCSR.IE = 1;

 TIMER2->TISR.TIF = 1;  //Write 1 to clear for safty  

 NVIC_EnableIRQ(TMR2_IRQn); //Enable Timer0 Interrupt

 /* Step 5. Enable Timer module */

 TIMER2->TCSR.CRST = 1;  //Reset up counter

 TIMER2->TCSR.CEN = 1;  //Enable Timer0

   TIMER2->TCSR.TDR_EN=1;  // Enable TDR function

     //以下设TIMER3的设置

  /* Step 1. Enable and Select Timer clock source */          

 SYSCLK->CLKSEL1.TMR3_S = 4; //Select 22Mhz for Timer0 clock source 

    SYSCLK->APBCLK.TMR3_EN =1; //Enable Timer0 clock source

   /* Step 2. Select Operation mode */ 

 TIMER3->TCSR.MODE=1;  //定时器工作在周期模式.当中断使能时，

 //一旦定时器计数器的值(24位递增计数器)等于比较寄存器（TCMPR）的值，

 //就会触发定时器中断。

 /* Step 3. Select Time out period = (Period of timer clock input) * (8-bit Prescale + 1) * (24-bit TCMP)*/

 TIMER3->TCSR.PRESCALE=2; // Set Prescale [0~255]

 TIMER3->TCMPR= 2765;//TICR = 2765;  // Set TICR(TCMP) [0~16777215]

        // (1/22118400)*(0+1)*(2765)= 125.01usec or 7999.42Hz

 /* Step 4. Enable interrupt */

 TIMER3->TCSR.IE = 1;

 TIMER3->TISR.TIF = 1;  //Write 1 to clear for safty  

 NVIC_EnableIRQ(TMR3_IRQn); //Enable Timer0 Interrupt

 /* Step 5. Enable Timer module */

 TIMER3->TCSR.CRST = 1;  //Reset up counter

 TIMER3->TCSR.CEN = 1;  //Enable Timer0

   TIMER3->TCSR.TDR_EN=1;  // Enable TDR function 



 while(1)

 {

  Delay(10);

  //TEMP = GetTDR();  //Get value of up counter

  if (TimerCOUN>1000)

  {

  GPIOA->DOUT ^= BIT2; 

  TimerCOUN=0;

  }

  //TEMP1 = GetTDR1();  //Get value of up counter

  if (TimerCOUN1>1000)

  {

  GPIOA->DOUT ^= BIT3; 

  TimerCOUN1=0;

  }

  //TEMP2 = GetTDR2();  //Get value of up counter

  if (TimerCOUN2>1000)

  {

  GPIOA->DOUT ^= BIT4; 

  TimerCOUN2=0;

  }

  //TEMP3 = GetTDR3();  //Get value of up counter

  if (TimerCOUN3>1000)

  {

  GPIOA->DOUT ^= BIT5; 

  TimerCOUN3=0;

  }

 }



}

 

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