add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# From http://etherlab.org/download/ethercat/ethercat-1.5.2.tar.bz2.md5
md5    6b4001f8d975865d74a0b108b3bdda3d    ethercat-1.5.2.tar.bz2