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28335的EPWM的updown模式移相问题

zhixing yan
Prodigy 30 points
Other Parts Discussed in Thread: CONTROLSUITE

28335我的EPWM1和EPWM2用updown模式，然后也就是ctrmode是5000，那么EPWN2是

EPwm2Regs.TBCTL.bit.SYNCOSEL = TB_SYNC_IN; // Sync down-stream module
EPwm2Regs.TBPHS.half.TBPHS = PHASE1; // Phase is 0

其中PHASE1到4200就已经出问题了，epwm2一直都是A是0，B是1，不能做到0-360度地相移（0-5000）。请问这个怎么解决？