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Epwm的时钟周期

Other Parts Discussed in Thread: CONTROLSUITE

我用的是28377S的LAUNCHpaid的板子,我想配置ePWM的频率,引脚说明书里说EPWM的时钟最高频率是100MHZ,例程里的主函数中

EPwm1Regs.TBCTL.bit.HSPCLKDIV = 0; 
EPwm1Regs.TBCTL.bit.CLKDIV = 0;

这两句没有对时基进行分频,但是频率最高设置为2.5MHZ,我想知道在哪里更改时基的最高频率。