TMS320F28035 定时器中断例程

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TMS320F28035 定时器中断例程 [复制链接]

#include "DSP28x_Project.h"

//extern Uint16 RamfuncsLoadStart;
//extern Uint16 RamfuncsLoadEnd;
//extern Uint16 RamfuncsRunStart;

interrupt void Cpu_Timer0_ISR(void);

int main(void)
{
    InitSysCtrl();

    EALLOW;
    GpioCtrlRegs.GPAMUX1.bit.GPIO12 = 0;
    GpioCtrlRegs.GPADIR.bit.GPIO12 = 1;
    GpioDataRegs.GPADAT.bit.GPIO12 = 0;
    GpioCtrlRegs.GPBMUX1.bit.GPIO34 = 0;
    GpioCtrlRegs.GPBDIR.bit.GPIO34 = 1;
    GpioDataRegs.GPBDAT.bit.GPIO34 = 0;
    EDIS;

    DINT;
    InitPieCtrl();
    IER = 0x0000;
    IFR = 0x0000;
    InitPieVectTable();
//     MemCopy(&RamfuncsLoadStart, &RamfuncsLoadEnd, &RamfuncsRunStart);
//     InitFlash();

    EALLOW;
    PieVectTable.TINT0 = &Cpu_Timer0_ISR;
    EDIS;

    InitCpuTimers();
    ConfigCpuTimer(&CpuTimer0,360,100000);  
//360为Freq，单位Hz；100000为Period，单位us；定时时长=Freq*Period/（pll时钟，单位Hz），单位s；
    StartCpuTimer0();

    IER|=M_INT1;
    PieCtrlRegs.PIEIER1.bit.INTx7= 1;
    EINT;

    while(1)
    {

    }
}

interrupt void Cpu_Timer0_ISR(void)
{
    GpioDataRegs.GPADAT.bit.GPIO12 =~ GpioDataRegs.GPADAT.bit.GPIO12;
    GpioDataRegs.GPBDAT.bit.GPIO34 =~ GpioDataRegs.GPBDAT.bit.GPIO34;

    PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;//写1清0，写0无效
    CpuTimer0Regs.TCR.bit.TIF=1;
    CpuTimer0Regs.TCR.bit.TRB=1;
}