NP-41 Emulator (may be)

[Chris Chung]

(12-21-2017 12:39 PM)Sylvain Cote Wrote:  

(12-19-2017 01:03 PM)Chris Chung Wrote:  +Sylvia,
I had shipped your replacement unit yesterday, you should be receiving it tomorrow Thursday.

Hello Chris,
I have received the package yesterday. Thanks for the USB-to-serial interface.
The calculator seem to be working fine but did not have time to really dig into it.
The three NP-41 prototypes that I have will be shipped back to you today.
Thank you!
Regards,
Sylvain

Great, still haven't figure out the source of problem. As although I don't extensively test the units I sent, I do run them simple calculation plus the usual 9, sin, cos, tan, ...reverse in PRGM.

So I am still worried w/ the 2nd batch PCBs (which is almost identical to the 1st batch). I am re-working the PCB design and is placing ground plates extensively. Hope this is the cause and solution to the intermittent freezing issues.

Please mail me the units only at your convenient, I already got a tricky board that I am working on, so no rush.