DIY Coleco 63 in 1 multicart

[DIY Coleco 63 in 1 multicart]

I tried to contact the designers but they won't respond...

I do not know enough about electronics to understand what happens there. In fact, I was wondering whether that behaviour depends on hw or sw. From what you write, it depends on hw and I can't do anything in the loader code to modify it. Correct?

Hi zCRP,

We didn't put in place any reset mechanism to return to the menu. You have to switch off/on the console to get the menu working.

 

 

I made this cartridge today and try to use the example roms without success. Mi CV boots on Jungle Hunt and not in the loader's game list.

 

Could you explain how to make this rom files step by step?. I don't have a clue about scripts.

 

All you need is on the 63in1 file.

 

Thanks in advance.

Hi Querubin,

The loader is located in the last 32k block of the second eprom (so at the end of the total address space of the two eproms).

If Jungle Hunt starts (located at position 31), and you have flashed properly the two binary files properly, then there is most likely an issue with the selection between the two eproms

(as if the clock enables of the two eproms were not properly working).

So i will look at the PCB :

- the pin 14 of the 74HC574D

- the Clock Enable of the two eproms (pin 22)

- the transistor BS170 used to do an invertor