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TMS320F28027F: 电机控制

Part Number: TMS320F28027F

我想实现在电机全速4000转运转10min后,降速到3500转。

我已经实现电机全速4000转运行,但如何实现10分钟的计时,然后使转速降低?

我定义了一个计数count,但并不能实现10分钟的计时,是哪里出问题了呢?

程序中TIME_DELAY是30s延时,speed_min_ot是3500转