8 IN 1 SLROM Multicartridge

Discuss hardware-related topics, such as development cartridges, CopyNES, PowerPak, EPROMs, or whatever.

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Snacks
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Re: 8 IN 1 SLROM Multicartridge

Post by Snacks » Fri Jan 24, 2014 5:29 pm

There is a possibility for a future version 4 in 1 for 27C040 users?
The 100 Mega Shock

lidnariq
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Re: 8 IN 1 SLROM Multicartridge

Post by lidnariq » Fri Jan 24, 2014 7:44 pm

I'm pretty certain you should be able to just take the first halves of the resultant images and have it work: the 74'174 has been wired to boot the cartridge into the first 128KiB.

You'll need to modify the menu to only offer the first four. (otherwise 5-8 will map to 1-4)

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FARID
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Re: 8 IN 1 SLROM Multicartridge

Post by FARID » Mon Mar 10, 2014 12:16 pm

There is no need for 74HC238, WRAM CE can do the job alone as a clock signal for 74HC161.
Also I have a clone MMC1 which don't have WRAM CE at all (it is NC), for this kind of MMC1 the clock signal can be generated by decoding STA $8010 with 74HC139 :
CPU R/W = 0
/ROMSEL = 0
PRG A4 = 1
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FARID
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Re: 8 IN 1 SLROM Multicartridge

Post by FARID » Mon Mar 24, 2014 7:46 am

Ruslansh wrote:What a menu will work with this scheme? - download/file.php?id=1331
This should work (From the first post) : Menu Patch
Ruslansh wrote:games using WRAM will normally work?
Yes, they also work
Ruslansh wrote:download/file.php?id=1331 - what needs to change in the scheme that would make it work? I use w27e040 eeprom
It should work, check everything again.

Ruslansh
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Re: 8 IN 1 SLROM Multicartridge

Post by Ruslansh » Mon Mar 24, 2014 8:44 am

Image хостинг картинок

Soldered this scheme. Rechecked. Menu filled from the first post. Cartridge menu starts - games does not change.

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FARID
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Re: 8 IN 1 SLROM Multicartridge

Post by FARID » Mon Mar 24, 2014 9:50 am

Does it work with the schematic from the first post?

Ruslansh
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Re: 8 IN 1 SLROM Multicartridge

Post by Ruslansh » Mon Mar 24, 2014 10:15 am

From the first post I did not. I want to do that this would work. I'll collect the cartridge MMC1 and MMC3 on the same board. I need that to one scheme worked with two mappers.

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Re: 8 IN 1 SLROM Multicartridge

Post by lidnariq » Mon Mar 24, 2014 11:10 am

Ruslansh wrote:games does not change.
Check the following:
* Make sure you've wired the resistor/capacitor/diode correctly. The voltage on pin 1, while the famiclone is powered and reset is pressed, should be 0V. It should then go to 5V once you release reset.
* Make sure pin 2 is connected correctly.
* Make sure pins 7, 8, 10 are grounded.

Also, try changing the capacitor to be connected to ground instead of +5V.

Ruslansh
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Re: 8 IN 1 SLROM Multicartridge

Post by Ruslansh » Wed May 21, 2014 7:35 am

There is a menu for MMC3 mapper for games 256 kb.?

lidnariq
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Re: 8 IN 1 SLROM Multicartridge

Post by lidnariq » Wed May 21, 2014 11:15 am

Farid had previously made this one for 128 KiB MMC3 games, but it could easily be modified to support 256 KiB PRG instead.

Ruslansh
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Re: 8 IN 1 SLROM Multicartridge

Post by Ruslansh » Fri May 23, 2014 12:27 am

Ruslansh wrote:Image хостинг картинок

Soldered this scheme. Rechecked. Menu filled from the first post. Cartridge menu starts - games does not change.

This scheme does not work with the menu 8 in 1 but it works with the menu under MMC 3 mapper for games ninja gaiden 3 in 1

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FARID
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Re: 8 IN 1 SLROM Multicartridge

Post by FARID » Fri May 23, 2014 2:17 am

@Ruslansh

Posting some pictures may make me passionate :D

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Re: 8 IN 1 SLROM Multicartridge

Post by Ruslansh » Fri May 23, 2014 2:36 am

FARID wrote:@Ruslansh

Posting some pictures may make me passionate :D
I do not understand

zxbdragon
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Re: 8 IN 1 SLROM Multicartridge

Post by zxbdragon » Sun May 25, 2014 9:40 am

nestopia plus! working

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