My FC120 took a crap, rented a FC2500 from GPS Alaska and am having difficulties getting it to fire up on the local coords, so whipped out the old 48 with "Survey GX" card in it and bingo, getting shots again! Trouble is, when I went to download, my computer can't find which port I'm plugged into. Used to be a sequence of hitting send on the 48 then recieve on the 'puter, but thats not working. Been so dang long since I used the old girl, I am drawing a blank. Any hints?
:-S 🙁 +o(
-JD-
Ours is different than what you described. We have to prompt the computer to 'receive' before punching 'send' on the 48.
JD,
Are you talking about the old Kermit transfer protocol??
You would need a serial port on the computer. I found this
if it helps....
KERMIT.TXT File
(c) Hewlett-Packard Company, 1990
OVERVIEW
--------
Kermit file-transfer protocol enables you to transfer files between your HP 48
calculator and a computer. Kermit is built into the HP 48, and when you also
have Kermit running on your computer, your HP 48 and computer are ready
to "talk to each other."
Kermit protocol was developed at the Columbia University Center for
Computing Activities. Kermit is available for many systems for a nominal
fee from Columbia and from various user group organizations.
PROCEDURE
---------
You may need to refer to your calculator and computer manuals to help you
follow this procedure.
1. Connect the 4-pin end of the serial interface cable to your HP 48;
connect the 9-pin end of the cable to the COM1 or COM2 port on your
computer. (This may require the 25-pin adapter.)
2. Run Kermit on the computer. (From the prompt for the directory in
which Kermit was installed, type KERMIT and press [ENTER].)
3. Configure the Kermit port setting to match the port to which the
serial cable was connected in step 1, and configure the Kermit baud
setting to match the computer's setting. (You can use the Kermit SET
command to do both of these--see the "EXAMPLE" section below.)
-------------------------------------------------------------------------------
NOTE: The default baud for the HP 48 is 9600. So, unless you need
to use another setting for your system, you should set your computer
and Kermit to 9600 baud also.
-------------------------------------------------------------------------------
4. Make sure the HP 48 baud matches the setting from step 3. Also, make
sure the IR/wire transmission mode is set to "wire." (Both of these
parameters can be viewed and set using the I/O SETUP menu on the HP 48.)
5. Follow the instructions in the "HP 48 Owner's Manual" for transferring
data between an HP 48 and a computer.
6. When you're finished, type Q and press [ENTER] to quit Kermit.
KERMIT HELP
-----------
To get help in Kermit on the computer, type a question mark (?) and press
[ENTER]. Kermit displays a list of commands. To get help on a specific
command, type the name of the command followed by a space and then a question
mark, and then press [ENTER]. For example, type SET ? and press [ENTER] to
get help on the SET command.
EXAMPLE
-------
This example assumes that you've connected the serial cable both to your
calculator and to the COM1 port in the computer and that you have a
variable in your HP 48 VAR menu named DATA1. It also assumes that the HP 48
baud and the computer baud are set to 9600 and that you've prepared for a file
transfer as described in the "HP 48 Owner's Manual."
Here are the keystrokes to transfer the file DATA1 from the HP 48 to the
computer:
Computer Keystrokes: KERMIT [ENTER] Runs Kermit protocol.
SET PORT 1 Sets Kermit port to COM1.
SET BAUD 9600 Sets Kermit baud to 9600 to
match the calculator and the
computer.
RECEIVE [ENTER] Prepares the computer
to receive a file.
Calculator Keystrokes: [VAR] ['] {DATA1} Recalls the variable to be
transferred to the stack.
[I/O] Selects the I/O menu and
{SEND} transfers the file to the
computer. The file DATA1 is
copied into the directory in
which Kermit resides.
Now assume that you quit Kermit and edited the file DATA1 on your computer.
Here are the keystrokes to send it back to the HP 48:
Computer Keystrokes: KERMIT [ENTER] Runs Kermit protocol.
SET PORT 1
SET BAUD 9600
SEND DATA1 [ENTER] Transfers the edited DATA1
to the HP 48, where it shows
up in the VAR menu. (If the
old DATA1 still exists, the
new DATA1 is given an
extension so the old version
isn't overwritten.)
Calculator Keystrokes:
[I/O] Prepares the HP 48 to receive
{RECV} a file.
EXAMPLE 2: CONTROLLING THE HP 48 FROM THE COMPUTER
--------------------------------------------------
The HP 48 can be controlled from the computer by the REMOTE HOST command.
This example assumes that you've connected the serial cable both to your
calculator and to the COM1 port in the computer. Any command sent to the
HP 48 needs to be in upper case (CAPS). The calculator's stack will be
displayed on the computer's display after each REMOTE HOST command.
Here are the keystrokes to control the HP 48 from the computer.
Calculator Keystrokes:
[I/O] Puts the calculator in Server
mode.
Computer Keystrokes:
KERMIT [ENTER] Runs Kermit protocol.
SET PORT 1
SET BAUD 9600
REMOTE HOST 'X^3-4*X^2+X-10' Sends an equation to the stack
of the calculator.
REMOTE HOST 'X' Sends the variable X.
REMOTE HOST 10 Sends the number 10.
REMOTE HOST ROOT Sends the ROOT command.
The calculated root of the
equation is returned to the computer's
display (4.30691319972).
To quit, press [ATTN] on the HP 48 and type EXIT or Q (quit) [ENTER] on the
computer.
NOTE: The Kermit DEFINE function will allow you to assign the REMOTE HOST
command to fewer keystrokes. For example, the computer keystrokes
DEFINE RH REMOTE HOST %1
assigns the REMOTE HOST command to keystrokes rh (or RH).
KERMIT HELPFUL HINTS
--------------------
o The Kermit PUSH command gets you out of Kermit temporarily and into DOS
so that you can manipulate files. You return to Kermit by typing EXIT
and pressing [ENTER].
o The Kermit STATUS command displays a screen showing the current Kermit
configuration settings. The baud and port settings are the first two
in the list.
o You can execute the DOS directory command from within Kermit by typing
DIR and pressing [ENTER].
o For additional information on Kermit protocol, a book by Frank da Cruz,
"KERMIT, A File Transfer Protocol" (1987. Bedford, MA: Digital Press) is
available in many bookstores or can be ordered.
I've had this problem when I got a new computer.
I needed to get a serial to USB adapter.
There have been quite a few threads about making that work with an HP. All I had to do was install the software that came with the cable.
> ..Been so dang long since I used the old girl, I am drawing a blank. Any hints?
From what I remember that usually meant a bad cable. SurveyLink? I think it has a connection wizard somewhere.
I remember the same issue. Putting in fresh batteries may help.