TCP server for Port D I/O.
Program Ethernut with portdio.rom and enter
telnet x.x.x.x 12345
two times on a command prompt, replacing x.x.x.x with the IP address of your ethernut board. Enter help for a list of available commands.
This will start two telnet session. Enter query on the first will show the current port status. Then enter wait on this session, which will hang until the port status changes. On the second telnet session enter set1 to set the first output bit.
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