[comp.sys.handhelds] Carrier Detection

ron@vpnet.chi.il.us (Ron Winograd) (03/15/91)

Is there any way to activate a program on the HP-48sx from a carrier
detection on the serial port? I want to make a program that will automaticaly
keep track of how long I am using the phone on the calculator. I have the
timing program ready. Now, all I need is some way to have the computer
automaticaly activate the program on the calculator whenever it get's a
carrier detect on the serial port. Any ideas anyone?
-Ron
Ron Winograd        <Insert huge 20 line sig here>        ron@vpnet.chi.il.us