Author Topic: X-MEM, a new memory expansion for all CPC.  (Read 110091 times)

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Offline TotO

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #625 on: 09:49, 18 March 16 »
I received mine today, but I've been running into a bunch of problems using it with ROMs.
I have tested your X-MEM and programmed ROM on it without any problem.
Please, try to clean your expansion connector with cotton-stab and alcohol.  8)

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Offline khaz

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #626 on: 15:25, 18 March 16 »
Could you take a Photo of the CPC and the cable and the mother 4 as you have it connected Please.
There is no MX4, only the X-MEM board with the ribbon cable, chips facing up.

I have tested your X-MEM and programmed ROM on it without any problem.
Please, try to clean your expansion connector with cotton-stab and alcohol.  8)
I just did. I forgot to do it at first and I hoped it was my problem, but

Every time I've had problems flashing a ROM file to my X-MEM it's because I forgot to add the AMSDOS header to it when transferring it from my PC.
That did the trick. I redid my .dsk with headers on on winape, and it seems to be working now.

ROMAN still randomly hangs, but I suppose it's because the software wasn't specifically designed for your board? Can anyone else confirm it doesn't work with them either? Shame, I quite appreciate its user interface (it just needs an editor and a tool to move ROMs now)

Also, I can't make Parados |DRIVE command work with the 3.15 firmware? It just gives me a "Bad command" error". Flicking the switch to CPC ROMs it works fine. Well, I can't figure how to format to DS 80, but that's probably  not related to the X-MEM.

Offline TFM

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #627 on: 19:06, 18 March 16 »
Every time I've had problems flashing a ROM file to my X-MEM it's because I forgot to add the AMSDOS header to it when transferring it from my PC.

Then use ROManager 2.14 (for FutureOS, see my homepage). It work with and without headers.  ;)


ROMAN still randomly hangs, but I suppose it's because the software wasn't specifically designed for your board? Can anyone else confirm it doesn't work with them either? Shame, I quite appreciate its user interface (it just needs an editor and a tool to move ROMs now)

Same advice for you!  :)  ROManager 2.14 has a ROM editor too.  ;)


Also: Could it be the case that your PSU is (too) weak?



« Last Edit: 19:10, 18 March 16 by TFM »
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Offline khaz

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #628 on: 19:31, 18 March 16 »
Then use ROManager 2.14 (for FutureOS, see my homepage). It work with and without headers.  ;)
Eh, I thought the default provided tool would have maximum compatibility. Maybe next update.

I did consider using ROManager and played with it briefly in emulation, before settling for Roman. iirc some user interface design choices were not to my liking. Would you be interested in some opinions about it?

Also: Could it be the case that your PSU is (too) weak?
I doubt it, it's a new PSU from retrocables.es. I got it with their Scart cable: it makes for quite a tangled mess but it has been working fine so far.

Offline TFM

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #629 on: 20:25, 18 March 16 »
Eh, I thought the default provided tool would have maximum compatibility. Maybe next update.

I did consider using ROManager and played with it briefly in emulation, before settling for Roman. iirc some user interface design choices were not to my liking. Would you be interested in some opinions about it?
I doubt it, it's a new PSU from retrocables.es. I got it with their Scart cable: it makes for quite a tangled mess but it has been working fine so far.


Well, good to hear that the PSU is fine. I power my CPC6128 and MX4 with a 5V, 3A PSU, but 2A should be fine IMHO. Brought this up, because in the past PSUs were responsible for some problems (also at my home, haha).


Of course I'm interrested in GUI opinions. Feedback is the most valuable thingy for development anyway. I can't guarantee, that I can make it happen, but please share your opinion and ideas.  :) :) :)
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Offline TotO

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #630 on: 10:40, 19 March 16 »
first at all, try to program it using the install program from the X-MEM floppy.
Please, let me know what is your CPU model and CRTC too.
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Offline remax

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #631 on: 21:28, 30 May 16 »
What is the good FW version for the XMEM?


FW316FR32.ROM i guess ?

Offline TotO

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #632 on: 22:31, 30 May 16 »
316 = 3.16 version (X-MASS, no RAM Drive)
FR = AZERTY keyboard layout
32 = 32 ROM support


« Last Edit: 22:34, 30 May 16 by TotO »
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Offline remax

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #633 on: 22:52, 30 May 16 »
316 = 3.16 version (X-MASS, no RAM Drive)
FR = AZERTY keyboard layout
32 = 32 ROM support

So it's only for X-MASS, not X-MEM ?

Offline TotO

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #634 on: 23:40, 30 May 16 »
It is for X-MEM with X-MASS, or X-MEM w/o using RAM Drive.
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Offline khaz

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #635 on: 00:54, 31 May 16 »
We can't have both?

Offline TotO

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #636 on: 10:04, 31 May 16 »
Not actually, because they use the same system memory space. So it is a big work to rewrite all.
The X-MASS is as fast as the RAM for the drive usage, so it is actualy not justified to do it.
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Offline Ast

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #637 on: 14:22, 31 May 16 »
Ram drive would be important to transfert data from Disc to X-mass. I mean full copy Disc, of course...
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Offline TotO

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #638 on: 15:01, 31 May 16 »
Ram drive would be important to transfert data from Disc to X-mass. I mean full copy Disc, of course...
Use the RAM.  :-\
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Offline angelcaio

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X-MEM, a new memory expansion for all CPC.
« Reply #639 on: 15:55, 31 May 16 »
Not actually, because they use the same system memory space. So it is a big work to rewrite all.
The X-MASS is as fast as the RAM for the drive usage, so it is actualy not justified to do it.
[size=78%]  [/size]


 But if the ramdisk disappears, then  for CP/M...
It would be possible to use  the X-Mass under CP/M? Maybe in the future?
This would be fantastic, at least for me ;D
« Last Edit: 15:58, 31 May 16 by angelcaio »

Offline TotO

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #640 on: 16:20, 31 May 16 »
FW316 is a minor update. You can continue to use the FW315 with the RAM Drive for CP/M.
But sure, it will be great to be able to use the X-MASS with folders too.
« Last Edit: 16:22, 31 May 16 by TotO »
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Offline angelcaio

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #641 on: 22:46, 31 May 16 »
FW316 is a minor update. You can continue to use the FW315 with the RAM Drive for CP/M.
But sure, it will be great to be able to use the X-MASS with folders too.
That sure is well with subdirectories.[emoji6]   To install the new firmware 3.16 on a real cpc, how can I do it?
with the ( recommended ) install utility installs the 3.15 versión . Exist a new version of install four the new firmware?
with the command |flash i not how to flash the rom 0
I have not tried the 'flasher' utility ....
I would be sure of what I do before damage something.[emoji26]

Enviado desde mi H60-L04 mediante Tapatalk
« Last Edit: 22:47, 31 May 16 by angelcaio »

Offline TotO

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #642 on: 23:03, 31 May 16 »
The ROM 7 is not altered by the X-MEM device. The Firmware is used instead.
You must set the bit6 to 1 for writing the Lower ROM (&47) and ROM 0 (&40).

|FLASH,"FW316ES32.ROM", 71  (for spanish keyboard)
|FLASH,"FW316EXP.ROM", 1  (update the exp rom)

But sure, I will see to update the install tool (it does the same with CALL instead of RSX)
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Offline merlinkv

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #643 on: 00:51, 01 June 16 »
Testing some ROMs with X-MEM I have found that sometimes the ROMs stored in the IC became corrupt and the CPC6128 can't boot.

I have made a ROM image (see attached file) that can be used with an EEPROM programmer to recover the X-MEM (English/FW3.15/CPM).

I hope maybe is useful for someone.

Offline TFM

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #644 on: 21:33, 01 June 16 »
This ROM equals the CPC 6128 BASIC ROM completely. Did you pick the wrong image to upload?

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Offline merlinkv

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #645 on: 06:33, 03 June 16 »
I've extracted the image directly from the ROM IC of the X-MEM (is 512kb), tested several times & working fine for me.

It contains the ROMs installed from the FDD v1.7 by default .....
« Last Edit: 06:49, 03 June 16 by merlinkv »

Offline Subaru

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #646 on: 22:41, 01 September 16 »
The ROM 7 is not altered by the X-MEM device. The Firmware is used instead.
You must set the bit6 to 1 for writing the Lower ROM (&47) and ROM 0 (&40).

|FLASH,"FW316ES32.ROM", 71  (for spanish keyboard)
|FLASH,"FW316EXP.ROM", 1  (update the exp rom)

But sure, I will see to update the install tool (it does the same with CALL instead of RSX)

C'est normal ce ",71" comme emplacement de la ROM ?
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Offline TFM

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #647 on: 22:50, 01 September 16 »
C'est normal ce ",71" comme emplacement de la ROM ?


Yes, for the X-MEM it is. 71 equals &47, this is the location for the lower ROM. But only for the X-MEM.
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Offline TotO

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #648 on: 23:58, 01 September 16 »
Yes. It is the hexadecimal value &40 + the ROM location number.
« Last Edit: 23:59, 01 September 16 by TotO »
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Offline anyf33

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Re: X-MEM, a new memory expansion for all CPC.
« Reply #649 on: 18:29, 19 September 16 »
hello Toto, i want to buy a memory expansion for my cpc like xmem BUT i already have the m4 wifi board WITH EDGE connector!
is possible a converter edge to mother x4 board?
 :picard2: :doh:
i think the better way is to sell it and buy a m4 with x4 pins
or maybe is possible with this???
http://www.spielquader.de/50pin-Edge-Connector-Changer-for-CPC-etc