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f28035 HRCAP我按如下配置怎么进不了中断？

alisa song
Prodigy 230 points


我看了f28035的HRCAP的datasheet,也看了TI的例程hrcap_capture_hrpwm，并按照例程中的配置对我的程序进行初始化配置，但是当我加下降沿的时候，怎么进不了中断？求高手帮忙解答，谢谢！初始化配置代码如下：
void sInitHRcap(void)         //
{
        EALLOW;
        HRCap1Regs.HCCTL.bit.SOFTRESET = 1;
        HRCap1Regs.HCCTL.bit.HCCAPCLKSEL = 1;  //HCCAPCLK = PLLCLK = SYSCLK * 2
        HRCap1Regs.HCCTL.bit.FALLINTE = 1;     //Enable falling edge capture event interrupt
        HRCap1Regs.HCCTL.bit.RISEINTE = 0;     //Disable Rising Edge Capture Event Interrupt
        EDIS;
}