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查阅用户手册发现pru模块有gpio功能，并可设置为串行28bit输入，所以考虑是否可以用该gpio端口连接SN65HVD7芯片，来控制RS485协议的绝对值编码器（e.g Nikon）？，还有就是ti有关于pru模块gpio部分的详细资料吗？
