Turbo Pascal for HP-IL on the HP Portable Plus

[pamphonica]

My longer-term project is to get control of test equipment via HP-IL (and HPIB via an interface), using my nice HP Portable Plus.

In a thread last year (https://www.hpmuseum.org/forum/thread-15...table+plus ), about basic on the PP, Martin Hepperle also kindly provided a binary for Turbo Pascal. But I could not get it to run. It just hung.
Now I am returning to that project and wondered if anyone (including Martin) has any advice.
The ROM image is not designed to show on PAM, so if I examine the B:\TURBO30\ directory, it contains:
TURBO.EXE
TURBO.MSG
HPGRAF.COM
HP110.BMP
IMAGE.COM
EDISK.SYS
Running TURBO from the command prompt just hangs the machine completely (reset button required). My PP is configured to 512K/1024K.

Before I re-blow the EPROM, does anyone have this working on the PP rather than the 110 and can offer any advice?
thanks