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TMS570LS1227的GPIO无法拉低,IO口无法控制

Other Parts Discussed in Thread: TMS570LS1227

设计了一块TMS570LS1227的开发板,程序可以正常烧录,内部加减计数也可以在线查看到,但是无法将GPIO口拉低,一直是高电平,同样的程序,在TI的口袋开开发板可以实现功能。