CPU的定时器0中断怎么进不去？

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reporter发表于 2014-4-18 15:42 | 只看该作者

CPU的定时器0中断怎么进不去？

#include &quot;2812.h&quot;
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;&nbsp; &nbsp;&nbsp;&nbsp;// GPIO:0-15;
GPBDIR = 0x07ff;&nbsp; &nbsp;&nbsp;&nbsp;// Input:11-15; Output:0-10;
GPBQUAL = 0x00ff;&nbsp; &nbsp;&nbsp;&nbsp;// Input Qual: HSPCLK/510;
GPDMUX = 0x0000;&nbsp; &nbsp;&nbsp;&nbsp;// GPIO:0-15;
GPDDIR = 0xffff;&nbsp; &nbsp;&nbsp;&nbsp;// Output:0-15;
GPDQUAL = 0x00;&nbsp; &nbsp;&nbsp; &nbsp;// Input Qual: NULL;
GPEMUX = 0x0003;&nbsp; &nbsp;&nbsp;&nbsp;// GPIO:8-15; 0:XINT1; 1:XINT2;
GPEDIR = 0x0000;&nbsp; &nbsp;&nbsp;&nbsp;// Input:8-15;
GPEQUAL = 0x00ff;&nbsp; &nbsp;&nbsp;&nbsp;// Input Qual: HSPCLK/510;
GPFMUX = 0x00f7;&nbsp; &nbsp;&nbsp;&nbsp;// GPIO:8-15;
GPFDIR = 0xff08;&nbsp; &nbsp;&nbsp;&nbsp;// Output:8-15;
GPGMUX = 0x00ff;&nbsp; &nbsp;&nbsp;&nbsp;// GPIO:8-15;
GPGDIR = 0xff00;&nbsp; &nbsp;&nbsp;&nbsp;// 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;&nbsp; &nbsp;//Disable WatchDog;
PLLCR = Freq*2/OSC;&nbsp;&nbsp;//SYSCLKOUT=CLKIN=150MHz,SYSCLKOUT=CLKIN=(OSCCLK*PLLCR/2);
for(i=0;i&lt;1000;i++)&nbsp;&nbsp;// Delay for PLL to stabilize;
{
&nbsp;&nbsp;asm(&quot; NOP&quot;);
}
PCLKCR = 0x0000;&nbsp;&nbsp;//Enable of Peripheral Clock;
HISPCP = 0x0001;&nbsp;&nbsp;
LOSPCP = 0x0002;&nbsp;&nbsp;
IER = 0x0000;&nbsp; &nbsp;
IFR = 0x0000;&nbsp; &nbsp;
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&gt;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(&quot; EALLOW&quot;);
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT1&nbsp; &nbsp;- Maskable int 1&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT2&nbsp; &nbsp;- Maskable int 2&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT3&nbsp; &nbsp;- Maskable int 3&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT4&nbsp; &nbsp;- Maskable int 4&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT5&nbsp; &nbsp;- Maskable int 5&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT6&nbsp; &nbsp;- Maskable int 6&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT7&nbsp; &nbsp;- Maskable int 7&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT8&nbsp; &nbsp;- Maskable int 8&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT9&nbsp; &nbsp;- Maskable int 9&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT10&nbsp;&nbsp;- Maskable int 10&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT11&nbsp;&nbsp;- Maskable int 11&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT12&nbsp;&nbsp;- Maskable int 12&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT13&nbsp;&nbsp;- Maskable int 13, timer 1&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// INT14&nbsp;&nbsp;- Maskable int 14, timer 2&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// DLOGINT- Maskable data-logging int ;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// RTOSINT- Maskable real-time OS int ;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// Reserved&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// NMI&nbsp; &nbsp; - Nonmaskable interrupt&nbsp; &nbsp;&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// ILLEGAL- Illegal instruction trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER1&nbsp;&nbsp;- User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER2&nbsp;&nbsp;- User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER3&nbsp;&nbsp;- User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER4&nbsp;&nbsp;- User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER5&nbsp;&nbsp;- User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER6&nbsp;&nbsp;- User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER7&nbsp;&nbsp;- User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER8&nbsp;&nbsp;- User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER9&nbsp;&nbsp;- User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER10 - User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER11 - User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;// USER12 - User-defined sw int/trap&nbsp;&nbsp;;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;// PIE int 1.1 ;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;// PIE int 1.2 ;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;// PIE int 1.3 ;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; // PIE int 1.4 XINT1;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; // PIE int 1.5 XINT2;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;// PIE int 1.6 ;
*pVectors++ = CPU_Time0;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;// PIE int 1.7 ;
*pVectors++ = UnusedIsr;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;// PIE int 1.8 ;
asm(&quot; EDIS&quot;);
}

新手谢谢指导！

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