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Hi, All!

I wonder if it is possible to download files from a PC to HP110 via the serial port?

Best regards,
Tal
email: td@chem.ch.huji.ac.il

I beleive that's how I did it in the good old days (when even the company I worked for couldn't afford the HI-IL interface card :-)

I believe the inbuilt terminal program supports XModem. Just do it like it was done when a fast modem was 300 baud.

The serial port on the 110 has a nonstandard pinning. I remember posting this here abt two years ago. I'll try to find it again and repost it in this thread.

BTW: I'd recommend using the Kermit software. The 110s terminal programs are rather poor. There's a special implementation of Kermit for the 110.

You can't use "normal" communication software - the 110 is a little incompatible to anything else. You can burn software into EPROMS (PROMS) and put it into the so-called ROM drawer.

There is a little software out there for the 110 (in example VDE).

The Pin configuration for the RS232C 9-Pin connector on the Portable Plus is:

1 DTR
2 Xmit Out
3 Rcv In
4 RTS
5 CTS
6 DSR
7 GND
8 Rcv Line Signal Detect or Data Carrier Detect (DCD)
9 Ring Detect

Given this pinout, you should be able to make sure any null modem cable you have works with your system. I hope this helps on at least the cable portion.

I used to do this all the time. I wrote a little program for my PC which would turn any file (up to 64k) into a DEBUG script that would recreate the file. Then, I'd connect the PC to the 110, type CTTY COM1 at the 110's DOS prompt, after which I could talk to it from a terminal emulator on my PC. On the PC, I then typed DEBUG to the 110 to start the DOS debugger on the 110. I just used the emulator's text file sending facility to send the DEBUG script to the 110. When back at the 110's DOS prompt, just type CTTY CON to return control back to its keyboard and screen.

Stefan