http://www.geocities.com/SiliconValley/3844/ 
 
FILE TRANSFER WITH THE HP-48G(X) 
PLEASE, DO NOT ALTER THIS FILE 
ANY DAMAGE CAUSED BY THE MISSUSE OF THIS DOCUMENT 
IS NOT MY RESPONSABILITY.  IT IS MEANT TO HELP THE  
BEGINNER ON FILE TRANSFERING AND MUST NOT 
CAUSE ANY PROBLEM. 
 
BY: 
 
Luis Diego Conejo Alpízar 
Ingeniería en Electrónica 
Instituto Tecnológico de Costa Rica (www.itcr.ac.cr) 
luisconejo@hotmail.com 
 
A. HOW TO SETUP THE PC TO TRANSFER FILES TO THE HP-48 
 
1.Dowload the program HP-Explorer, included in this page  
 It will require Windows 3.x or higher to use it. 
 
2.Use a program such as Winzip to  
uncompress it in the directory of your choice (i.e. c:\hpexplor) 
 
NOW, SETUP THE HP-48 FOR FILE TRANSFER 
(SEE, "HOW TO PREPARE THE HP-48 FOR FILE TRANSFER") 
 
3.Open the folder in which you decompressed the HP-Explorer 
and double click the file HP48.EXE. 
 
4.Select the serial port you will use.  If you use a serial mouse, 
remember to choose a different port from that used by the mouse, 
otherwise, it will freeze. 
 
5.Press OK. 
 
6. Write the parameters of your serial port.  Usually, the default valuesa 
are correct.  However, be sure the field "Bits per second" is on "9600" which 
is the maximum transference speed of the HP-48. 
 
7.Press OK. 
 
IF EVERYTHING IS FINE, YOU SHOULD SEE A WINDOW SIMILAR TO THAT 
IN WINDOWS EXPLORER, WITH THE CALCULATOR CONTENTS ON IT. 
 
B. HOW TO SETUP THE HP-48 FOR FILE TRANSFER:  
 
TO TRANSFER FILES, YOU WILL REQUIRE A SERIAL CABLE WHICH YOU 
CAN MAKE 
OR BUY FROM A HP RESELLER. 
 
1. Connect the cable to the calculator and the computer as shown  
in HP-48's manual. 
 
2. Follow the steps in point "A". 
 
3. With the calculator ON, press the green button with the right-pointing arrow. 
 
4. Now press number "1".  
 
NOW, YOU WILL SEE A LIST OF TRANSFER OPTIONS. 
 
5. Press UP-ARROW (the white triangle pointing "north" of the calculator). 
Now, "START SERVER" is blackened. 
 
6. Press ENTER. 
 
THE CALCULATOR IS READY TO RECEIVE FILES FROM THE PC. 
TO EXIT, PRESS THE ON BUTTON (IT IS ALSO CANCEL BUTTON). 
 
C. FILE TRANSFER. 
 
1. While on HP-Explorer windows, press blue up-arrow button (UPLOAD). 
 
A OPEN-FILE DIALOG BOX WILL SHOW. 
 
2. Select the file(s) you wish to transfer and press "OPEN". 
 
YOU WILL SEE A PROGRESS INDICATOR, WHILE IN THE CALCULATOR 
WILL SHOW THE FILE NAME 
AND NUMBER OF PACKETS RECEIVED. 
 
D. PROGRAM INSTALLATION. 
 
THERE ARE TWO BASIC TYPES OF PROGRAMAS FOR THE HP: 
VARIABLES AND LIBRARIES. 
 
VARIABLES DO NOT REQUIERE ANY INSTALLATION, BECAUSE THEY ARE 
EXECUTED PRESSING 
THE BUTTON "VAR" AND SELECTING THE DESIRED PROOGRAM FROM 
THE VARIABLE LIST SHOWN 
ON THE DISPLAY.  IF A VARIABLE IS NOT EXECUTED DIRECTLY, THE 
DISPLAY SHOW A LINE SAYING: 
LIBRARY #### : NAME (WHERE #### IS THE NUMBER AND NAME IS THE 
NAME OF THE LIBRARY). 
 
AT THE OTHER SIDE, LIBRARIES MUST BE INSTALLED.  TO DO THAT, 
FOLLOW THE NEXT STEPS. 
 
1. Press the "VAR" button. 
2. While on the variable list, select the library you wish to use. 
 
IT IS SHOWN: LIBRARY #### : NAME 
 
3. Write: '0' 
 
4. Press the button: 'STO'. 
 
5. Turn ON and OFF the calculator. 
 
THE LIBRARY IS NOW INSTALLED.  REMEMBER TO ERASE THE ORIGINAL 
VARIABLE WHICH 
USE TO CONTAIN THE LIBRARY, BECAUSE IT IS ONLY STEALING SPACE 
NOW AND ITS NO LONGER 
REQUIRED.  TO USE DE LIBRARY, PRESS THE GREEN BUTTON WITH THE 
RIGHT-POINTING ARROW, 
PRESS THEN NUMBER "2" AND SELECT THE LIBRARY FROM THE LIST 
THAN HAD JUST APPEARED. 
 
TO DELETE LIBRARIES, FOLLOW THE INSTRUCTIONS SHOWN IN THE 
MANUAL. 
 
E. SOME USEFUL TIPS: 
 
- If you need to install a huge library, follow steps 1 to 2 of point "D",  
inmediatly erase the original variable, and follow steps 4 and 5.  You will get 
much more space for installation.  It is particulary useful with the game TREIZE.