Jump to content
doctorclu

Lynx eprom cart

Recommended Posts

Where can I find the parts for a eprom lynx cart? What type of eprom is needed?

 

Thanks!

Share this post


Link to post
Share on other sites

It depends what size game you're doing. Most likely you'll want a 27c010 or 27c020.

 

Mitch

Share this post


Link to post
Share on other sites

http://www.atariage.com/forums/index.php?s...t&p=1166825

http://marcinprusisz.pl/atari/Lynx_cart.pdf

http://atariki.krap.pl/index.php/Atari_256_kB_Game_Cartridge

 

post-9085-1202232460_thumb.jpg post-9085-1202232549_thumb.jpg

 

On the first photo there is my FLASH ROM programmer, a slightly modified SMC 1211TX-WL50 PCI Ethernet NIC. The switch switches between the lower and upper half of the ROM as the SMC-branded Realtek RTL8139C chip can flash ROMS only up to 128KB. I use the ctflasher along with a few simple scripts that cut the ROM image in two and burn them in two steps. :)

Many of the Flash ROMs from the ctflasher's list of supported chips can be easily found in old PCs in the form of the BIOS. :)

So you can most probably get the NIC and the Flash ROMS for free and don't have to search for EPROMs and a programmer anymore.

Pasiu's cart supports the 2xy020 chips only.

The PCBs can sometimes be spotted on eBay, which is where I got mine from.

The WL50 suffix in the NIC's model is important, those without it have almost always only a 28pin DIP socket!

 

Some other carts:

post-9085-1202232671_thumb.jpg post-9085-1202232689_thumb.jpg post-9085-1202232791_thumb.jpg post-9085-1202232811_thumb.jpg

 

Sorry for the ugly-looking network card but I had to use the 40pin ZIF socket because it was much cheaper than the 32pin one. :)

Edited by pepax
  • Like 1

Share this post


Link to post
Share on other sites
So, does this mean that you are "making" these Raiden, AvP etc. game cards for the Lynx?

 

I don't make anything. :) Just bought a few PCBs on eBay, modded the NIC and used them for my own fun. I know nothing about the cards you mentioned.

Share this post


Link to post
Share on other sites
So, does this mean that you are "making" these Raiden, AvP etc. game cards for the Lynx?

 

I don't make anything. :) Just bought a few PCBs on eBay, modded the NIC and used them for my own fun. I know nothing about the cards you mentioned.

 

 

Thanks anyhow. I was just curious...

Share this post


Link to post
Share on other sites

What's the difference between the 27C020 EPROM and the 27020 EPROM? (What does that "C" mean? this appears in other chip series too, like the 28x EEPROMS, etc...)

 

*Edit*

And BTW, does antbody know the carriage-read cycle time of the Lynx?

Edited by per

Share this post


Link to post
Share on other sites
What's the difference between the 27C020 EPROM and the 27020 EPROM? (What does that "C" mean? this appears in other chip series too, like the 28x EEPROMS, etc...)

 

*Edit*

And BTW, does antbody know the carriage-read cycle time of the Lynx?

Maybe CMOS ? Does it really matter ? Each manufacturer gives its own names to its chips

Share this post


Link to post
Share on other sites

(Quoting this from another message since it helps in my question here...)

 

(Bubsy-TRON)

rank_joysticks_7.gif

River Patroller

 

Posts: 2,344

Joined: January 28, 2004

From: Dallas, Texas - USA

 

 

spacer.gif

QUOTE (per @ Mon Mar 24, 2008 3:17 PM) post_snapback.gifQUOTE (calfranklin @ Mon Mar 24, 2008 9:47 AM) post_snapback.gifJust wondering if there's a way I could play downloaded game roms on my Lynx and not just on the Handy emulator?

I whuld say yes, but you'll need to cut of the Handy formatted header and burn it onto the right sized ((E)E)PROM.

 

 

This is interesting since I am working on something like this.

 

So a 1 meg image will not work in a 2 meg chip?

 

And how do you cut the Handy header off the rom image? Has anyone already done this?

 

--------------------

+------------ |||

|Doctor Clu / | \

+-------------------------------------------------+

| =ATARI BBS LIST / ONE CLICK PORTAL=

|Click Handshake picture on this link

|(register) hit enter a lot, then "x" at main menu, "A"=Atari, then select Atari BBS!

+-------------------------------------------------+ p_up.gifp_report.gif

// user-offline.pngkarri gender_male.png View Member Profile find_posts.png View Member Blog friend_add_small.png Add as Friend send_pm_small.png Send Message find_posts.png Find Member's Topics find_posts.png Find Member's Posts ipsmenu.register( "post-member-1489355", '', 'popmenubutton-new', 'popmenubutton-new-out' ); to_post_off.gif Tue Mar 25, 2008 11:40 AM

Post

#6

 

rank_joysticks_5.gif

Dragonstomper

 

Posts: 574

Joined: August 13, 2002

From: Espoo, Finland

 

 

spacer.gif

QUOTE (doctorclu @ Tue Mar 25, 2008 4:33 PM) post_snapback.gifQUOTE (per @ Mon Mar 24, 2008 3:17 PM) post_snapback.gifQUOTE (calfranklin @ Mon Mar 24, 2008 9:47 AM) post_snapback.gifJust wondering if there's a way I could play downloaded game roms on my Lynx and not just on the Handy emulator?

I whuld say yes, but you'll need to cut of the Handy formatted header and burn it onto the right sized ((E)E)PROM.

 

 

This is interesting since I am working on something like this.

 

So a 1 meg image will not work in a 2 meg chip?

 

And how do you cut the Handy header off the rom image? Has anyone already done this?

 

 

The easiest way to cut off the rom image is to use a unix command "tail". You can easily find the command "tail" compiled for Windows also.

 

What you want to do is to cut off the first 64 bytes of the game.lnx file and rename it to game.lyx

 

If the game.lnx is 256k then the command

 

tail --bytes=262144 games.lnx > games.lyx

 

will do the trick. (The command "tail" takes the last 256k of the cart)

 

Another problem is that usually your cart is wired for 256k games. To play a 128k game on it you need to split the lyx image into 512 byte pieces and duplicate each piece and glue them together again so you get the required 256k rom.

 

--

karri

 

 

p_up.gifp_report.gif

p_mq_add.gifp_quote.gif

 

 

 

 

 

 

user-offline.png<a href="index.php?showuser=10054">jaguar_fan pp-blank-thumb.png gender_mystery.png View Member Profile friend_add_small.png Add as Friend send_pm_small.png Send Message find_posts.png Find Member's Topics find_posts.png Find Member's Posts ipsmenu.register( "post-member-1490919", '', 'popmenubutton-new', 'popmenubutton-new-out' ); to_post_off.gif Fri Mar 28, 2008 10:58 AM

Post

#10

 

rank_joysticks_4.gif

Moonsweeper

 

Posts: 335

Joined: July 17, 2006

From: Germany

 

 

spacer.gif

QUOTE (karri @ Tue Mar 25, 2008 5:40 PM) post_snapback.gifQUOTE (doctorclu @ Tue Mar 25, 2008 4:33 PM) post_snapback.gifQUOTE (per @ Mon Mar 24, 2008 3:17 PM) post_snapback.gifQUOTE (calfranklin @ Mon Mar 24, 2008 9:47 AM) post_snapback.gifJust wondering if there's a way I could play downloaded game roms on my Lynx and not just on the Handy emulator?

I whuld say yes, but you'll need to cut of the Handy formatted header and burn it onto the right sized ((E)E)PROM.

 

 

This is interesting since I am working on something like this.

 

So a 1 meg image will not work in a 2 meg chip?

 

And how do you cut the Handy header off the rom image? Has anyone already done this?

 

 

The easiest way to cut off the rom image is to use a unix command "tail". You can easily find the command "tail" compiled for Windows also.

 

What you want to do is to cut off the first 64 bytes of the game.lnx file and rename it to game.lyx

 

If the game.lnx is 256k then the command

 

tail --bytes=262144 games.lnx > games.lyx

 

will do the trick. (The command "tail" takes the last 256k of the cart)

 

Another problem is that usually your cart is wired for 256k games. To play a 128k game on it you need to split the lyx image into 512 byte pieces and duplicate each piece and glue them together again so you get the required 256k rom.

 

--

karri

 

 

 

Would a program like Lynxer also do the job?

 

http://www.mdgames.de/lynxer50.zip

 

Lynxer is described as ROM-image-builder and able to load a homebrewed Lynx-program (*.O) from a cartridge the program has to be transformed into a size fitting to the cartridge. Lynxer adapts the program file(s) to the BLL-cartridge-size of 256 blocks of 1024 bytes.

Edited by doctorclu

Share this post


Link to post
Share on other sites

Hey all, I've been working to get a eprom cart working. Here so far in this picture shows that I got the B&C eprom cart, and added four rows of sockets so I can choose from either 1 meg or 2 meg games.

 

Now the part I didn't realize would be so difficult. Can someone please take the Paperboy image I've attached and transform into the image file it needs to be for a eprom load? I have 27c020 ready to go on this. Afterwards, can you let me know what you did so I can try it.

 

My problem right now is too many factors. I need to burn a rom, figure out where the rom goes on the board and how, and oh yeh, I am not sure my eprom burner will do the job. First time. It would be nice if I had a good image to work with so I can get the eprom burner in line.

 

If someone can help me convert this image, I'd appreciate that. If not Paperboy, then some workable image I can burn.

 

Thanks!

post-4709-1210999251_thumb.jpg

Paperboy.zip

Share this post


Link to post
Share on other sites

For your first time, instead of transforming the Paperboy (128K Rom) into

the right format for your 27C020 (as Karri describes above), I'd suggest

you start with a 256K *.lyx one instead, which will fit without much fuss.

AvP_lyx.zip

Edited by Nimtene
  • Like 1

Share this post


Link to post
Share on other sites
For your first time, instead of transforming the Paperboy (128K Rom) into

the right format for your 27C020 (as Karri describes above), I'd suggest

you start with a 256K *.lyx one instead, which will fit without much fuss.

AvP_lyx.zip

 

Thank you! And what did you use to convert this image?

Share this post


Link to post
Share on other sites
You can also use the Yastuna 2 ROM, it is freeware and available in Handy *.lnx format and burnable *.lyx format in the same archive.

http://fadest.free.fr/Yastuna2/indexen.html

 

Oh sweet!! Not only do I get a 2 mb image to play with, but the LYNX FINALLY GETS A GAME THAT STARTS WITH THE LETTER "Y". :D

 

Now we just need to work on "O" and I think "U".

 

In the meantime I will fire up my rom burner to see for starters if my burner will work.

Share this post


Link to post
Share on other sites
Thank you! And what did you use to convert this image?
I opened the "Handy" headered *.lnx file in Xvi32 Hex Editor,

deleted the first 64 bytes of the file, then saved it as *.lyx.

You'll definitely want to make a Yastuna 2; Awesome release.

Share this post


Link to post
Share on other sites
It depends what size game you're doing. Most likely you'll want a 27c010 or 27c020.

 

 

..or you build something like this:

 

 

CU

Irgendwer

post-7778-1211976899_thumb.jpg

Edited by Irgendwer
  • Like 1

Share this post


Link to post
Share on other sites
It depends what size game you're doing. Most likely you'll want a 27c010 or 27c020.

 

 

..or you build something like this:

 

 

CU

Irgendwer

 

 

Looks interesting.

 

Do you want to tell us more about it?

Share this post


Link to post
Share on other sites
Looks interesting.

 

Do you want to tell us more about it?

 

There is not that much to tell about it. It's a Lynx-Eprom-Adapter I've build some years ago.

It supports 1m*8 eproms (e.g. M27C801), where you can put up your cart-images.

I wrote a little software which can mix up the images to form a 1M image. So you can

merge from 8x128k games up to 2x512k games into one burn file. The picture shows a

eprom with a combination of 2x128k games together with 3x256k games.

The active image can be easily selected by using the up & down buttons of the numeric selector

on the left side. That's all...

 

CU

Irgendwer

Share this post


Link to post
Share on other sites
Looks interesting.

 

Do you want to tell us more about it?

 

There is not that much to tell about it. It's a Lynx-Eprom-Adapter I've build some years ago.

It supports 1m*8 eproms (e.g. M27C801), where you can put up your cart-images.

I wrote a little software which can mix up the images to form a 1M image. So you can

merge from 8x128k games up to 2x512k games into one burn file. The picture shows a

eprom with a combination of 2x128k games together with 3x256k games.

The active image can be easily selected by using the up & down buttons of the numeric selector

on the left side. That's all...

 

CU

Irgendwer

 

 

LOL! "That's all", well, very nice. I know a lot of people who would love to have multicarts for the Lynx if you ever decide to share on the process you came up with.

Share this post


Link to post
Share on other sites
it's just a coder that replaces jumpers (like those on Karry's card for example)

 

But the wheel is more user friendly for sure. I am also experimenting in a software wheel because there is no way I can remember where I put the image. The software wheel would use a i2c 8 bit latch. But I am still building the mod and need to solder 8 more wires before I can test it.

 

post-2099-1212037428_thumb.jpg

 

--

Karri

Share this post


Link to post
Share on other sites
Looks interesting.

 

Do you want to tell us more about it?

 

There is not that much to tell about it. It's a Lynx-Eprom-Adapter I've build some years ago.

It supports 1m*8 eproms (e.g. M27C801), where you can put up your cart-images.

I wrote a little software which can mix up the images to form a 1M image. So you can

merge from 8x128k games up to 2x512k games into one burn file. The picture shows a

eprom with a combination of 2x128k games together with 3x256k games.

The active image can be easily selected by using the up & down buttons of the numeric selector

on the left side. That's all...

 

CU

Irgendwer

 

 

Wow, this is interesting. Do you still make this Lynx Eprom Adaptor?

Share this post


Link to post
Share on other sites
Wow, this is interesting. Do you still make this Lynx Eprom Adaptor?

 

The project is about 7 years old and I've done only two adapters - one for a friend & one for me.

I could order some pcbs, but since the price depends on the number of units, the single pcb could

be a quite expensive part (in a prototype series about 12,- EUR) and the test socket & code switch is also not that cheap.

I also have to mention that the adapter is not very comfortable for Lynx I units. My friend has

a Lynx I and I designed a kind of 'rated break point' to divide the lower & upper part of the pcb -

allowing to connect them by appropriate ports & a ribbon cable - but the cartridge door / handle still has to be opened.

 

How many units could I sell here?

 

CU

Irgendwer

Share this post


Link to post
Share on other sites
Wow, this is interesting. Do you still make this Lynx Eprom Adaptor?

 

The project is about 7 years old and I've done only two adapters - one for a friend & one for me.

I could order some pcbs, but since the price depends on the number of units, the single pcb could

be a quite expensive part (in a prototype series about 12,- EUR) and the test socket & code switch is also not that cheap.

I also have to mention that the adapter is not very comfortable for Lynx I units. My friend has

a Lynx I and I designed a kind of 'rated break point' to divide the lower & upper part of the pcb -

allowing to connect them by appropriate ports & a ribbon cable - but the cartridge door / handle still has to be opened.

 

How many units could I sell here?

 

CU

Irgendwer

 

 

I´ll take one.

Share this post


Link to post
Share on other sites
How many units could I sell here?

 

CU

Irgendwer

 

I'd be interested in one!

 

How do you load software onto it? I own nearly all the Lynx titles, so I'd want it, primarily, to be able to play demos and unreleased Lynx games. If I could easily find and load that software, I'd certainly buy one.

 

Cheers,

Smeg

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...