need help with TDS 48GX application running on HP48GX calculator

[iuliu tatar]

Hello,

My name is Iuliu Tatar. I became interested in HP 48GX calculators since I've started to use the TDS 48GX survey application that runs on this HP model. I would be very thankful to somebody willing to spend from his time and give me some help. I've tried to look on lots of forums about HP48GX but I didn't find any answer and I'm running off ideas. Definitely I don't have the level of knowledge and understanding to find the solution. I have the TDS 48 GX ROM card and I'm running the application on a HP 48GX calculator. My question is where the job file, the coordinate file and the raw data file that the application is creating is. I've noticed the application creates a directory called tds.48 located in Home Directory. I looked in all the files (variables) in tds.48 directory and none of it has this information. I also have a 1MB RAM card in port 2. The application card (ROM card) is in port1. If I'm checking the ports 2-9 on the RAM card, the system shows 128 KB available on each port. So, nothing on the extension card, nothing in home directory. I have no idea where that information is stored, what kind of files are used, where the job file is stored etc. If I'm downloading the data through the survey application menu on a PC it will give me the data files: the coordinates file and the raw data file. What I want is not to download the job files on a PC using the TDS48GX application. This is working perfectly using the menu of the application. My problem is to locate the files on the HP48GX calculator after I'm exiting the TDS application. I think the files should be lists. After the TDS application creates a job it shows on the beginning screen the job name with the extension CR5. So after using the data collector in the field to get some coordinates I need to exit the TDS48 GX application at the site, launch an application written by myself in user RPL language, which is accessing the lists of coordinates created by the TDS48 GX application and process the coordinates in a way that I want for a particular survey problem. I want to do that right after collecting the coordinates in the field. But I don't know where the coordinate files created by TDS application are stored in HP48GX calculator. If you are not familiar with this application you might know the right person to direct this question to. I would be very thankful to anybody who can help me solve this problem.

Thank you

[Han]

To see the contents of a port, you can use: PVARS with the port number
as an argument. So 0 PVARS would show a list of the contents of port
0. After you manually create a job with same made-up points, try:

{ 0 1 2 3 4 5 6 7 8 9 } PVARS EVAL

On the stack should be a pairs of a list showing the contents of a
port and a real number corresponding to the amount of remaining memory
in that port.

[mnhol...@yahoo.com]

[mnhol...@yahoo.com]

Hello Iuliu,

As far as I know, all the files are stored in the RAM card. The only access you have to the file system is through the functions documented in the user's manual. I could possibly put you in touch with a surveyor who writes his own programs using this software. Many years ago I used to do the same, but I no longer have the software. Please let me know if I can be of any further assistance to you.

Regards,

Mark

[iuliu...@yahoo.com]

Thank you for the answers. I tried already before using PVARS but I checked separately each port. I didn't know you can use a list and have them evaluated all in one session. Anyway I'm not too far yet. To me it's strange where the information pertaining to each job might be stored, since I've tried different experiments and I didn't get any results. I've checked, using PVARS command, all the ports: 0 and then 2 to 9 before and after deleting a job and it did show me the same amount of available memory in port 0. In ports 2 to 12 (the ones on the 1MB RAM card in slot 2) it always shows me 131072 Bytes (128 KB) available in each port, which means nothing is on the card. If I backed up a variable in one port on the RAM card PVARS showed me right away the variable in that port and the amount of available memory. If something is on the RAM card the TDS48GX application doesn't run until the RAM card is empty. To me it is a mystery where that information is physically stored.

[iuliu...@yahoo.com]

Thank you very much for your answer. I'm definitely interested in any information from a person who has experience in accessing the TDS48GX data base. So please let me know how you can put me in touch with the surveyor who you sad is writing his own programs for HP48GX calculators. Thanks again.

[mnhol...@yahoo.com]

Hello Iuliu,

I contacted the surveyor I know, and he has no knowledge of TDS software beyond what is in the user's manual.

Regards,

Mark

[iuliu...@yahoo.com]

Thank you Mark for your help.

Iuliu