Famicom World

Family Computer => Technical & Repair Assistance => Topic started by: jpx72 on March 01, 2016, 03:04:45 am

Title: Schematics for switching reading from eprom?
Post by: jpx72 on March 01, 2016, 03:04:45 am
I know it's here somewhere but after searching for hours I need to ask:
can somebody please post schematics for IC controlled switching of reading from Eprom, by selecting start reading from 0, 1/4, 1/2, 3/4 - multiple roms on one cartridge - by RESET button?

Thanks!
Title: Re: Schematics for switching reading from eprom?
Post by: famifan on March 01, 2016, 03:29:23 am
firstly, i was going to share this link http://callanbrown.com/index.php/super-mario-all-stars-nes-multicart

but suddenly realized that famicom don't have reset signal presented at the slot, but there's a work around:
http://forums.nesdev.com/viewtopic.php?f=9&t=12144

my suggestion is to read both links :-) first one is pretty descriptive and neat. The last one is more techy.
Title: Re: Schematics for switching reading from eprom?
Post by: jpx72 on March 01, 2016, 03:43:02 am
Yeah thanks, did the callanbrown once (couldnt find that page for a life!) but it wasn't working correctly. Will read nesdev!!
Title: Re: Schematics for switching reading from eprom?
Post by: famifan on March 01, 2016, 04:54:53 am
Quote from: jpx72 on March 01, 2016, 03:43:02 am
it wasn't working correctly. Will read nesdev!!


don't hesitate to ask for help with troubleshooting :-[