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LAUNCHXL-F280049C: hrpwm波形异常

Part Number: LAUNCHXL-F280049C

期望输出为250khz、占空比75%、AB互补的pwm波。

未使用hr模块时波形:

使用hr模块后:

为何波形占空比变成了25左右?我的hr配置如下,代码是否有问题?感谢解答!