void InitSysCtrl(void)
{DisableDog();//禁止看门狗InitPll(0x8);//设置系统时钟=XCLKIN*8/2InitPeripheralClocks();    //设置外设时钟DINT;                        // 关闭总中断IER = 0x0000;               // 关闭外设中断IFR = 0x0000;               // 清中断标志    InitPieCtrl();            //初始化PIE控制寄存器InitPieVectTable();        //使能PIE向量表
} 

 1 void InitPll(Uint16 val)
 2 {
 3    volatile Uint16 iVol;
 4
 5    if (SysCtrlRegs.PLLCR.bit.DIV != val)
 6    {
 7
 8       EALLOW;
 9       SysCtrlRegs.PLLCR.bit.DIV = val;
10       EDIS;
11
12       for(iVol= 0; iVol<4096; iVol++);
13    }
14 }

InitPll（0x8)

   SysCtrlRegs.HISPCP.all = 0x0001;//设置高速时钟 2分频SysCtrlRegs.LOSPCP.all = 0x0002;//设置低速时钟 4分频

void InitPieCtrl(void)
{DINT;    //禁止CPU级中断
PieCtrlRegs.PIECRTL.bit.ENPIE = 0;//屏蔽PIE中断向量表//清除所有PIEIER寄存器PieCtrlRegs.PIEIER1.all = 0;PieCtrlRegs.PIEIER2.all = 0;PieCtrlRegs.PIEIER3.all = 0;    PieCtrlRegs.PIEIER4.all = 0;PieCtrlRegs.PIEIER5.all = 0;PieCtrlRegs.PIEIER6.all = 0;PieCtrlRegs.PIEIER7.all = 0;PieCtrlRegs.PIEIER8.all = 0;PieCtrlRegs.PIEIER9.all = 0;PieCtrlRegs.PIEIER10.all = 0;PieCtrlRegs.PIEIER11.all = 0;PieCtrlRegs.PIEIER12.all = 0;// 清除所有PIEIFR寄存器PieCtrlRegs.PIEIFR1.all = 0;PieCtrlRegs.PIEIFR2.all = 0;PieCtrlRegs.PIEIFR3.all = 0;    PieCtrlRegs.PIEIFR4.all = 0;PieCtrlRegs.PIEIFR5.all = 0;PieCtrlRegs.PIEIFR6.all = 0;PieCtrlRegs.PIEIFR7.all = 0;PieCtrlRegs.PIEIFR8.all = 0;PieCtrlRegs.PIEIFR9.all = 0;PieCtrlRegs.PIEIFR10.all = 0;PieCtrlRegs.PIEIFR11.all = 0;PieCtrlRegs.PIEIFR12.all = 0;
}    

void InitPieVectTable(void)
{int16    i;Uint32 *Source = (void *) &PieVectTableInit;Uint32 *Dest = (void *) &PieVectTable;EALLOW;    for(i=0; i < 128; i++)*Dest++ = *Source++;    EDIS;// 使能中断向量表PieCtrlRegs.PIECRTL.bit.ENPIE = 1;    }

Uint32 *Source = (void *) &PieVectTableInit;
Uint32 *Dest = (void *) &PieVectTable;

void init_eva()
{// EVA Configure T1PWM, T2PWM, PWM1-PWM6
// Initalize the timers// Initalize EVA Timer1 EvaRegs.T1PR = 0xFFFF;       // Timer1 periodEvaRegs.T1CMPR = 0x3C00;     // Timer1 compareEvaRegs.T1CNT = 0x0000;      // Timer1 counter// TMODE = continuous up/down// Timer enable// Timer compare enableEvaRegs.T1CON.all = 0x1042;   // Initalize EVA Timer2 EvaRegs.T2PR = 0x0FFF;       // Timer2 periodEvaRegs.T2CMPR = 0x03C0;     // Timer2 compareEvaRegs.T2CNT = 0x0000;      // Timer2 counter// TMODE = continuous up/down// Timer enable// Timer compare enableEvaRegs.T2CON.all = 0x1042;   // Setup T1PWM and T2PWM// Drive T1/T2 PWM by compare logicEvaRegs.GPTCONA.bit.TCMPOE = 1;// Polarity of GP Timer 1 Compare = Active lowEvaRegs.GPTCONA.bit.T1PIN = 1;// Polarity of GP Timer 2 Compare = Active highEvaRegs.GPTCONA.bit.T2PIN = 2;// Enable compare for PWM1-PWM6EvaRegs.CMPR1 = 0x0C00;EvaRegs.CMPR2 = 0x3C00;EvaRegs.CMPR3 = 0xFC00;// Compare action control.  Action that takes place// on a cmpare event// output pin 1 CMPR1 - active high// output pin 2 CMPR1 - active low// output pin 3 CMPR2 - active high// output pin 4 CMPR2 - active low// output pin 5 CMPR3 - active high// output pin 6 CMPR3 - active lowEvaRegs.ACTRA.all = 0x0666;EvaRegs.DBTCONA.all = 0x0000; // Disable deadbandEvaRegs.COMCONA.all = 0xA600;}