First you need to acquire a hp48-serial to USB cable like the one
here.
Then on the Mac running OSX ...
Download & Install MacPort (
http://www.macports.org/install.php)
Run the "Terminal" application located in "Utilities" folder
// the following lines starting with "//" are comments
// on the command line, type de following ...
// update port software
sudo port selfupdate [return]
// update port installed packages
sudo port upgrade outdated [return]
// install kermit command line application
sudo port install kermit [return]
// connect the hp48-serial-to-USB cable & list your actives USB devices (in my case it's SLAB_USBtoUART)
ls /dev | grep USB [return]
// cu.SLAB_USBtoUART
// tty.SLAB_USBtoUART
// create a folder where you will put your HP-48 files
cd [return]
mkdir hp48 [return]
cd hp48 [return]
// start kermit software
kermit [return]
// configure kermit
C-Kermit> set line /dev/tty.SLAB_USBtoUART [return]
C-Kermit> set baud 9600 [return]
C-Kermit> set parity none [return]
C-Kermit> set flow-control none [return]
C-Kermit> set carrier-watch off [return]
> start kermit server
C-Kermit> server [return]
The HP-48S/SX Owner's Manual Vol. II Chapter 33 P.612 to P.634 explain how to configure and use the serial interface on the calculator.
Sylvain
