If there are people here with either a powerbase converter, a mega everdrive or a master system, they might have noticed some games won't play well with a genesis controller.
There is a simple fix for this.
See the pictures in the attachment for details.
I've tested this with Wonderboy In...
I've build myself a flashrom cartridge to be able to play some other games than Sonic The Hedgehog, James Pond, Enduro Racer and Moonwalker.
For flashing the rom, I am using an arduino uno.
I am planning on putting the programmer on the cartridge (with an arduino NANO) so I don't have to remove...
In the past couple of weeks I've been building a Master System converter to be able to play Master System games on my Genesis.
It works like a charm and every game I fire at it works.
The bios stack thing is simulated by an AVR.
I've also build a flashrom cartridge with a 315-5235...
Just tested it with some brand new 29F010's.
The flash program detects both chips, flashes them but the result is the same.
I think it is indeed the memory addressing in the PAL chip that is done wrong.
So now I know for 99,9% sure that the CD+PLUS cartridge isn't capable of running PSK.
Okay so now I'm 99% sure it's the logic fuse set in the PAL chip that prevents the menu from actually coming up. the boot data is found (is the the black screen with the sega logo) but after that it's kicking me straight to the saturn bios.
I don't know how the CD+PLUS plus works but the PAL...
I found a saturn cartridge PCB in my parts bin.
Al the IC markings are removed by the manufacturer so I didn't have any clue what chips were on there.
I started measuring and found out there were 2 probably 29F001's on there, but the other small 20 pin chip I have no clue of what...
Google brought me here and reading this post got me wondering.....could somebody do the same with castlevania ?
I loved the PSX version and I finally got hold of an original Sega Saturn version (cost me quite some money, but it was worth it)