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DSP选型,ECAP和GPIO口多于2803X的DSP,比如2806X哪个更合适?

大家好,第一次发帖还请多多关照

如题,我要开发一款低压直流的BLDC驱动器,原本打算用2803X的,发现资源紧张,ECAP只有一个不够用,需要两个ECAP,另外GPIO口也不够用,有朋友推荐了2806X,请问是否合适,如果合适用28062/63/64/65/……哪一款更合适或者这几颗功能及性能上有什么区别?是否还有其他更合适的型号推荐?