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不能一概而论,跟你使用的芯片有关,跟你具体跳过哪几个EPWM模块有关,所以下次提问前请一定先说明是哪颗芯片,对应地我们就可以知道是哪一类型的EPWM模块。
请参考EPWM手册的Time-Base Counter Synchronization章节,里面列出了常见的几种同步方式,对应不同系列的芯片。
F2803x的EPWM手册里2.2.3.3 Time-Base Counter Synchronization章节提到,它使用Time-Base Counter Synchronization Scheme 1:
Scheme 1 shown in Figure 7 applies to the 280x, 2801x, 2802x, and 2803x devices. Scheme 1 also applies to the 2804x devices when the ePWM pinout is configured for 280x compatible mode (GPAMCFG[EPWMMODE] = 0).
因此,必须是EPWM1同步2,2同步3,3同步4,4同步5,依此类推,上面Eric已经答复如何配置。