Adding/Editing Programs for the HP50G

[MattGreer]

I'll put this at the top:

tl;dr I used a different program to transfer off my 48GX and everything is working with zero issues.

OK, *whew*, I think I've got this resolved. At the end of the day I think this was either a software problem or a software configuration problem (due to the user most likely, which would be ME).

I really, really appreciate you guys' replies and attempts to help. I think the problem was more with the old HP Connectivity Kit (the one from the mid '90's, I think?)

I actually got an old desktop computer out, installed WinXP and the associated software for the HP48GX, HPComm-30r4. But that was giving me problems/errors when I copied the ASCII file that had downloaded from the calc to my computer, and then to the SD card, and then copied internally in the 50g. Something was getting lost in translation. So on my Windows 10 64-bit laptop, I installed the most recent(?) Connectivity Kit for the 50g, conn4x_english.exe. Followed the instructions to get the USB drivers for the 50g installed, and installed the driver for the Trendnet TU-S9 so I could connected the 48GX.

After getting no joy on the 48GX I randomly installed the Xmodem library from the Connectivity Kit and voilà! We're cooking with gas!

I downloaded files and directories in both ASCII and binary mode. When I attempted to upload the binary files to the 50g I got a warning (which I ignored) but uploaded anyway. The 50g couldn't really make heads or tails of the file(s) or directories. But with ASCII it worked completely fine. Even the Greek letters are working.

One example of things "not working correctly", when I'd download from the 48GX using the older software, on Windows XP, the file would have this character as the start of a program: « But with the transfers with the newer program on Windows 10, I'm getting what I saw you guys type in the thread here: \<< Also the formatting doesn't have any line feed/carriage returns with the Win10 transfers.

Can't thank you guys enough for your help! But wait, I have more questions if you'd be willing to stick around a bit more?

If the answer to any of these is "Read The Friendly Manual" please, by all means, say so.

1. When I downloaded files in binary format, I got files with the extension .hp on my PC. Given that the ASCII transfers worked just fine, I'm wondering why I'd ever use binary (edit: realized later that complied program uploads would, of course, require binary)? And is it possible to edit the binary files on PC? The Debug4x will only open files with a .hpp extension.
2. Using the CST directory, a while back I was taught that you could create a directory looking graphic using the code # 238572d SYSEVAL. Doing this on the 50g causes a spontaneous reboot. How would I be able to create a directory graphic for the 50g?
3. What's the directory 'CASDIR' and if I do a factory reset would it show back up?
4. I'll go look now, but I'm hoping I can get the Periodic Table on this thing as I had on my 48GX. Not really a question but if y'all know that's not possible lemme know.
   

OK, enuff for now!