1.昊芯RISC-V定时器

导语：

Haawking IDE 新建

2.建立Cpurs(); //中断配置步骤-----1,开启模块中断使能，位于 Timer->RegsAddr->TCR.bit.TIE = 1;

ConfigCpuTimer(&CpuTimer0, 120, 60000); //12MHz,1000us ，即为 1ms中断周期

CpuTimer0Regs.TPR.bit.TDDR= 10000;

CpuTimer0Regs.TCR.bit.TIE= 1; //使能中断

CpuTimer0Regs.TCR.bit.TSS= 0; // To start or restart the CPU-timer, set TSS to 0

//中断配置步骤-----2，重映射中断服务函数

// Interrupts that are used in this example are re-mapped to

// ISR functions found within this file.

EALLOW;

PieVectTable.TINT0= &cpu_timer0_isr;

EDIS;

//中断配置步骤-----3，连接CPU中断Y

IER_ENABLE(M_INT1);

//中断配置步骤-----4，连接Y中断里的第几位

PieCtrlRegs.PIEIER1.bit.INTx7= 1;

}

 

//CPU 定时器0 中断服务函数

INTERRUPT voidcpu_timer0_isr(void)

{

timer0Base.msCounter++;

timer0Base.Mark_Para.Status_Bits.OnemsdFlag= 1;

 

// Acknowledge this interrupt to receive more interrupts from group 1

EALLOW;

PieCtrlRegs.PIEACK.all= PIEACK_GROUP1;

EDIS;

}

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5.实机运行效果