CPU的定时器0中断怎么进不去？

只看该作者 · 2014-4-8 17:14

#include "2812.h"
cregister volatile WORD IER;
cregister volatile WORD IFR;
static WORD loopcount = 0;
void SetupInterrupts(void);
void Time0Init(DWORD Freq,DWORD Period)
{
DWORD temp;
temp = Freq*Period;
TIMER0TIM = 0;
TIMER0TPR = 0;
TIMER0PRD = temp-1;
TIMER0TCR = 0x4820;
}
void InitGpio(void)
{
EALLOW;
GPAMUX = 0x0000;
GPADIR = 0xffff;
GPAQUAL = 0x0000;
GPBMUX = 0x0000;    // GPIO:0-15;
GPBDIR = 0x07ff;    // Input:11-15; Output:0-10;
GPBQUAL = 0x00ff;    // Input Qual: HSPCLK/510;
GPDMUX = 0x0000;    // GPIO:0-15;
GPDDIR = 0xffff;    // Output:0-15;
GPDQUAL = 0x00;    // Input Qual: NULL;
GPEMUX = 0x0003;    // GPIO:8-15; 0:XINT1; 1:XINT2;
GPEDIR = 0x0000;    // Input:8-15;
GPEQUAL = 0x00ff;    // Input Qual: HSPCLK/510;
GPFMUX = 0x00f7;    // GPIO:8-15;
GPFDIR = 0xff08;    // Output:8-15;
GPGMUX = 0x00ff;    // GPIO:8-15;
GPGDIR = 0xff00;    // Output:8-15;
EDIS;
GPADAT = 0xffff;
GPBDAT = 0x0000;
GPDDAT = 0x0000;
GPEDAT = 0x0000;
GPFDAT = 0x0008;
GPGDAT = 0x0000;
}
void SystemInit(WORD Sysclk,WORD Oscclk)
{
WORD i,Freq,OSC;
Freq = Sysclk;
OSC = Oscclk;
EALLOW;
WDCR = 0x0068; //Disable WatchDog;
PLLCR = Freq*2/OSC;  //SYSCLKOUT=CLKIN=150MHz,SYSCLKOUT=CLKIN=(OSCCLK*PLLCR/2);
for(i=0;i<1000;i++)  // Delay for PLL to stabilize;
{
  asm(" NOP");
}
PCLKCR = 0x0000;  //Enable of Peripheral Clock;
HISPCP = 0x0001;
LOSPCP = 0x0002;
IER = 0x0000;
IFR = 0x0000;
EDIS;
SetupInterrupts();
Time0Init(150,1000); //定时1ms
InitGpio();
}
interrupt void UnusedIsr(void)
{
return;
}
int main(void)
{
DINT;
SystemInit(150,30);
PIEIER1 = 0x0040;
PIECTRL |= 1;
IER |= 1;
EINT;
ERTM;
while(1);
}

/*CPU定时器,Time1、Time2、Time0*/
interrupt void CPU_Time0(void)
{
loopcount++;
if(loopcount>5000){loopcount = 0;GPADAT = 0x0000;}
TIMER0TCR |= 0x8000;
PIEACK |= 0x0001;
EINT;
}

typedef void (*VECTORS)();//函数指针
void SetupInterrupts(void)
{
VECTORS* pVectors = (VECTORS*)0x0d02;
asm(" EALLOW");
*pVectors++ = UnusedIsr; // INT1 - Maskable int 1          ;
*pVectors++ = UnusedIsr; // INT2 - Maskable int 2          ;
*pVectors++ = UnusedIsr; // INT3 - Maskable int 3          ;
*pVectors++ = UnusedIsr; // INT4 - Maskable int 4          ;
*pVectors++ = UnusedIsr; // INT5 - Maskable int 5          ;
*pVectors++ = UnusedIsr; // INT6 - Maskable int 6          ;
*pVectors++ = UnusedIsr; // INT7 - Maskable int 7          ;
*pVectors++ = UnusedIsr; // INT8 - Maskable int 8          ;
*pVectors++ = UnusedIsr; // INT9 - Maskable int 9          ;
*pVectors++ = UnusedIsr; // INT10  - Maskable int 10          ;
*pVectors++ = UnusedIsr; // INT11  - Maskable int 11          ;
*pVectors++ = UnusedIsr; // INT12  - Maskable int 12          ;
*pVectors++ = UnusedIsr; // INT13  - Maskable int 13, timer 1  ;
*pVectors++ = UnusedIsr; // INT14  - Maskable int 14, timer 2  ;
*pVectors++ = UnusedIsr; // DLOGINT- Maskable data-logging int ;
*pVectors++ = UnusedIsr; // RTOSINT- Maskable real-time OS int ;
*pVectors++ = UnusedIsr; // Reserved                         ;
*pVectors++ = UnusedIsr; // NMI - Nonmaskable interrupt    ;
*pVectors++ = UnusedIsr; // ILLEGAL- Illegal instruction trap  ;
*pVectors++ = UnusedIsr; // USER1  - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER2  - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER3  - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER4  - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER5  - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER6  - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER7  - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER8  - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER9  - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER10 - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER11 - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr; // USER12 - User-defined sw int/trap  ;
*pVectors++ = UnusedIsr;          // PIE int 1.1 ;
*pVectors++ = UnusedIsr;          // PIE int 1.2 ;
*pVectors++ = UnusedIsr;          // PIE int 1.3 ;
*pVectors++ = UnusedIsr;       // PIE int 1.4 XINT1;
*pVectors++ = UnusedIsr;       // PIE int 1.5 XINT2;
*pVectors++ = UnusedIsr;          // PIE int 1.6 ;
*pVectors++ = CPU_Time0;          // PIE int 1.7 ;
*pVectors++ = UnusedIsr;          // PIE int 1.8 ;
asm(" EDIS");
}

新手谢谢指导！