I've never used Hyperterminal before, but
Debug that is a DOS utility that comes with
Windows 98, etc (in C:\Windows\Command\debug)
might be a good choice to use to play around
with the CM11A if you're not a programmer. I
tried last night to communicate, but get
unknow hex values that are not in the
protocol for some reason. If you can get
Debug to work, let me know.