SERIOUS PROBLEM WITH THE 41CL ***SOLVED***

[yann]

Hi, I just updated the 41CL to the new rom_files_240325.zip.
The entire update did not cause any kind of problems.
I upgrade using the 9PRG MMU, which contains the YUPS module.
Once the update is finished, I try to go back to my 9CFA:
I run XEQ MMUDIS
The "terrible answer" I get is NON EXISTENT.
I think the update had a problem and I run XEQ YRES,
hoping to get a basic system, but as soon as I try to install YFNX, here is the real "cold shower":
the answer I get is NO IMDB!!!
How can I solve this problem?

Thank you very much!

[cdmackay]

How are you installing YFNX, with PLUG1U? Did you try an MMU clear?

from my notes:

Code:


XEQ YRES             # disable MMU; from TMOD
XEQ MMU?             # ensure MMU is disabled; if not, try backspace-ON and repeat
XEQ MMUCLR           # initialise MMU registers in RAM
"YFNX" XEQ PLUG1U    # plug YFNX to port 1 upper, page 9
XEQ MMUEN            # enable MMU
XEG PLUG
   ?IMG ?            # check ROM page layout; should show: YFNX 9

[Sylvain Cote]

Hello Yann,

(03-27-2024 09:12 AM)yann Wrote:  Hi, I just updated the 41CL to the new rom_files_240325.zip.
... but as soon as I try to install YFNX, here is the real "cold shower": the answer I get is NO IMDB!!!

I just updated one of my 41CLv5 to the same version as you and I get the same result.
It seems that there is a problem with the latest IMDB.ROM file, I will post a workaround soon.
Sylvain

[Sylvain Cote]

Hello Yann,

The following procedure will downgrade your 41CL to the 2024-03-05 package.

• 41CL Calculator Manual, section "Plug into Port/Unplug from Port Functions" (p.24 to p29) describe how to map a ROM image with its page address
• 41CL Memory Reference allow you to map the IMDB ID to/from its Flash page address
  • 41CL Memory Reference for v3+ boards
  • 41CL Memory Reference for v2 and beta boards
    
• download the previous archive file: rom_files_240305.zip
• plug the serial port between the 41CL and your computer
• start the clupdate program with the previous archive file (rom_files_240305.zip)
• 41CL: configure without IMDB
  
  Code:
  

  MMUDIS
MMUCLR
"00A-RAM"   // YFNX address in Flash
PLUG1L
"062-RAM"   // YUPS address in Flash
PLUG1U
MMUEN
CAT 2       // ... "-YFNX 4C" ... "UPDAT 4D" ...
• 41CL: downgrade
  
  Code:
  

  CMOPEN
CPONLY
"*"
FLCHK?
FLUPD
CDBEXP      // update list should be empty
CMCLOSE
• 41CL: validation & cleanup
  
  Code:
  

  FDBVER?     // 03/05/2024
CDBDEL
MMUDIS
MMUCLR
• PLUG functions should now works with IMDB names
  

Sylvain

edit: typos

[Monte Dalrymple]

I just uploaded a revised rom_files_240325.zip with IMDB.ROM and IMDB_V2.ROM repaired. It "should" be okay now. Sorry about that. It has been a while since I edited the image database and I accidentally made a bad edit.

[yann]

Many thanks for your help. Everything went well.
Only little problem, I didn't find the CDEXP instruction, but the CDBEXP instruction and I used it.
Unfortunately in an attempt to solve the problem, before asking you for help, I sent the 41CL to memory clear, so now I have to reinstall everything! But I'm happy to see that even problems that seem difficult to solve are solved quite easily on 41CL!!!
With best regards.
Yann

[yann]

This is just to let you know that I updated my 41CL to rom_files_240325.zip without any problem!
Thanks again for the help.
Yann

[Sylvain Cote]

(03-28-2024 08:14 AM)yann Wrote:  Many thanks for your help. Everything went well.

Great!

(03-28-2024 08:14 AM)yann Wrote:  Only little problem, I didn't find the CDEXP instruction, but the CDBEXP instruction and I used it.

Sorry for the typo, but you found the instruction I meant.