Are there details of High Speed port functions?
Particularly description of values of HSSpeed(), HSFlags(), HSState() are needed.
I hope to make a sensor which send data to NXT with RS-485.
The ability to change the baud rate of the high speed port has not yet been implemented. See the attached file for an example of how to use these functions.
See also http://bricxcc.sourceforge.net/nbc/nxcsamples/485.zip