HP-41CY re-initialization ROM

[Sylvain Cote]

(12-25-2019 09:21 PM)J-F Garnier Wrote:  Bravo !

Merci!

(12-25-2019 09:21 PM)J-F Garnier Wrote:  Look for "41CY" on the TOS :-)

I had looked and found the German version of the 41CY manual but not the English version.
Anyway, I did an OCR scan of the manual and with the help of Google Translate, I was able to get the information that I needed.

(12-25-2019 09:21 PM)J-F Garnier Wrote:  If you do PG<> then you should see -RAMBOX 64a , at least it is how it works in Emu41 :-)

After reading the manual translation, I tried the functions (PG<>, PG10, PG01) to switch the banks.
The result was that CAT2 stopped working correctly.
After that, I tried a Memory Lost and asked the 41CY to clear its QROM, but to no avail.
So, I will need to follow Jürgen procedures to reinstall the whole thing correctly.

I am still searching how to disable QROM pages with the 41CY like it is possible with the RAMBOX & RAMBOX II.
If not, i will experiment with physical modules to see how the system behaves. (bus contention, etc)

Sylvain