What am I doing wrong? V41/HEPAX - ILper - DRIVE - HP-IL/HP41

[Artur - Brasil]

Dear HP-41 masters!

I'm trying to get the LIB4 into my HP-41CX with NovRAM module - I don't have the recorder.
So what I did:
1 - downloaded the LIB4 and others I need into my computer;
2 -installed them in my V41 emulator -all worked fine! (only HP-16C emulator did not work, so I removed it. Here the listing of HEPAX 002 in V41:
HEPAX 002
3:-EXT FCN 2D
4:-LIB#4 R58b.
5:-TIME 2C
6:-PRINTER 2E
7:-MASS ST 1H
8: HEPAX RAM
9: HEPAX RAM
A:-RAMPAGE'X
B:-ADV CONV B
C:`MATRX
D:-HEPAX 1D
E: NO ROM
F: NO ROM

3 - I copyed the ROM LIB4 into file LIB4 in the virtual cassete: ALPHA: LIB4 command: WRTROM;
wait ...

The DIR command results (in V41):
DIR
NAME TYPE REGS
BYTEG KE 1
CU PR 11
LINHA PR 75
LB PR 31
TSTTR PR 81
AUTO PR 63
SR PR 15
MAQELE PR 19
MAGN PR 68
SFTMEN PR 51
MAQAC2 PR 33
Y<>Z PR 21
TRAFO PR 48
MK PR 61
CPLX PR 96
MAQAC PR 157
CPYHEP PR 18
UNIT PR 105
UNIT2 PR 100
RCLHEP PR 13
FEN.TR AS 80
FEN.TR2 AS 40
MEC.SL AS 100
LIB4 DA 640

Excelent! So, I turned OFF V41, connected the real HP-41CX with HP-IL module and NovRam into PilBox and run the DIR command: result - exact as above - good!
So, I run HEPAX 002:
HEPAX 002
3:-EXT FCN 2D
4: NO ROM
5:-TIME 2C
6:-PRINTER 2E
7:-MASS ST 1H
8:`RCLHEP
9:`AUTO
A:`ELEC2
B: HEPAX RAM
C:-ADV CONV B
D:`MATRX
E:-HEPAX 1D
F: NO ROM

I need to put the LIB4 into port 4, correct? So, I did:
X: 4 alpha: LIB4
XEQ READROM

wait .....
H:CHECKSUM ERROR!

Please, what am I doing wrong?

Best regards
Artur

[Sylvain Cote]

Hello Artur,

What NoV module model do you have, NoVRAM, NoV-32, NoV-64 or NoV-64d ?

What do you mean by "I don't have the recorder." ? Are you talking about the PIC programmer ?

All NoV modules have at least 6 x 4K pages of Flash that can be used to hold ROM images.
LIB4 and the other ROMs should be loaded in Flash with Diego's Windows software and the PIC programmer.

Sylvain

[Artur - Brasil]

(03-25-2021 10:30 PM)Sylvain Cote Wrote:  Hello Artur,

What NoV module model do you have, NoVRAM, NoV-32, NoV-64 or NoV-64d ?

What do you mean by "I don't have the recorder." ? Are you talking about the PIC programmer ?

All NoV modules have at least 6 x 4K pages of Flash that can be used to hold ROM images.
LIB4 and the other ROMs should be loaded in Flash with Diego's Windows software and the PIC programmer.

Sylvain

HI, SYLVAIN!

My NovRAM is the version NovRAM. No other indication, sorry.
Yes, I don't have the PIC recorder.I thought the recording could also be done using th HPIL and Pilbox with the virtual cassette. All operations worde fine, just the "importing" file created does not work, even in the V41.

[Sylvain Cote]

Hello Artur,

(03-25-2021 11:06 PM)Artur - Brasil Wrote:  My NovRAM is the version NovRAM. No other indication, sorry.

It just mean that you have the original NoV module, the one with 16K of RAM and 24K of Flash.
Since HEPAX ROM uses 16K of Flash this only leave you with 8K of available Flash space for your ROMs.

(03-25-2021 11:06 PM)Artur - Brasil Wrote:  Yes, I don't have the PIC recorder.
I thought the recording could also be done using the HPIL and Pilbox with the virtual cassette.
All operations worde fine, just the "importing" file created does not work, even in the V41.

For sure HEPAX RAM pages can easily be converted to QRAM pages by removing them from the HEPAX file system chain, allowing you to load ROM images into these freed QRAM pages.
Your module maps his HEPAX RAM/QRAM 16K block to the HP-41 pages 8, 9, A & B.
Since it is not possible to remap a QRAM page to HP-41 page 4 with the NoV modules, the only solution that you have is to load the LIB4 ROM image into the module Flash space but this also mean that you need the PIC programmer.
Sorry for the bad news.

Sylvain

[Artur - Brasil]

Finally I understood the point: ROM and RAM. I believe the appropriate is EEPROM, which i electrically programmed and erased.

I'll get the PIC programmer.

Many thanks for your precious help!
Artur

[Ángel Martin]

(03-25-2021 03:07 PM)Artur - Brasil Wrote:  I need to put the LIB4 into port 4, correct? So, I did:
X: 4 alpha: LIB4
XEQ READROM

wait .....
H:CHECKSUM ERROR!

The READROM command only works on HRAM Pages, so it won't work unless the destination page is Q-RAM.

ÁM