Post Reply 
HP-71B MultiMod ROM Emulator - Issues ?
03-27-2021, 03:35 AM
Post: #1
HP-71B MultiMod ROM Emulator - Issues ?
Hello Mark,

First impression, pcb is clean, solder joins are impeccable, superb quality, nicely done, congratulations.
Daniel has also done a great job on the MultiMod casing, it's way better than the ones from CMT and HHP.

All three modules works.
I was confused at first because PEEK$("2C000",1) always report "0" even after doing a POKE "2C000","1".
I am using VER$ to validate that the module is active, PEEK$ would have been better thought.

It seems that there is a compatibility issue with some 71B.
All three modules work on S/N: 2713A00041 but none works on S/N: 2410A00146.
I know the card reader port works on S/N: 2410A00146 because it usually hosts a working FRAM71 module.
I will be testing the MultiMod modules on more machines tomorrow.

I am still using the default configuration on all three MultiMod modules.

Sylvain
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
HP-71B MultiMod ROM Emulator - Issues ? - Sylvain Cote - 03-27-2021 03:35 AM



User(s) browsing this thread: 1 Guest(s)