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关于28035的CLA中,使用MEALLOW的问题



专家您好:

我用的F28035芯片,使用了CLA 的功能

需要在cla程序中使用PWM_OST封波功能:

EPwm1Regs.TZFRC.bit.OST = 1;//

EPwm2Regs.TZFRC.bit.OST = 1;//

根据技术手册,写成:

Cla1Regs._MSTF.bit.MEALLOW=1;

EPwm1Regs.TZFRC.bit.OST = 1;//

EPwm2Regs.TZFRC.bit.OST = 1;//

Cla1Regs._MSTF.bit.MEALLOW=0;

但是波还是没有封?

不知问题出哪里?

谢谢