HP 48GX to PC Communications

[MNH]

(02-25-2024 11:25 PM)BruceH Wrote:  You have a couple of options:

1) Use the built in file transfer programs - Kermit or Xserver - to transfer objects to the tablet. This requires the tablet to be running either Kermit or Xserver.

2) Use the printing commands, with the print device set to be wire [1] and the terminal emulation program on the tablet set to save what it receives to a file.

The advantage of the latter approach is that on the 48 you only need print one line at a time rather than concatenate all the points into a long string, which saves memory. There is is also a CR command which sends a 'carriage return' [2] so you don't need to worry about adding linefeeds. Have a look at CR and PR1 in the manual (and the associated commands listed against those entries.)

Whichever you do, you'll need the HP48 serial cable plus an RS232 to USB adaptor (unless the tablet still has an RS232) to connect the two devices.

[1] Flag -33 clear, flag -34 set.
[2] CR + LF by default but it can be changed in PRTPAR

Thanks. I'm looking forward to figuring this out.