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TMS320F280025C: 有什么其它办法能扩展一下普通IO成为EPWM吗?

Part Number: TMS320F280025C
Other Parts Discussed in Thread: C2000WARE

请问TI前辈,各位前辈:

有什么其它办法能扩展一下普通IO成为PWM吗?

(问题背景描述:用这个处理器控制多路输入,每路用全桥的话需要4个PWM,即1A,1B,2A,2B这样,于是PWM很快不够用了。

4路的话就需要8A,8B,但280025只有7A,7B, 280049又太贵,供货也紧张。)