Search found 3 matches

by zlakomanoff
Thu Jul 11, 2019 11:57 am
Forum: NES Hardware and Flash Equipment
Topic: Twin famicom ppu glitches
Replies: 6
Views: 4140

Re: Twin famicom ppu glitches

lidnariq wrote:CHR /CE should be connected to PPU A13. /OE is correct.
Yes, /CE connect to the PPU A13, looks better but something wrong
also i connect CHR EEPROM A13 to GND - game run perfect!

Thank you "lidnariq" !

Where i can read about PPU A13 behaiour ?

Image
by zlakomanoff
Thu Jul 11, 2019 9:50 am
Forum: NES Hardware and Flash Equipment
Topic: Twin famicom ppu glitches
Replies: 6
Views: 4140

Re: Twin famicom ppu glitches

lidnariq wrote:Check what CHR's /OE and /CE signals are connected to. I'd hunch you've accidentally left it enabled all the time, and that interferes with the real PPU's multiplexed address/data bus. (Many famiclones demultiplexed this bus)
CE connected to the GND, OE connected to 17 pin (PPU /RD)
by zlakomanoff
Thu Jul 11, 2019 9:16 am
Forum: NES Hardware and Flash Equipment
Topic: Twin famicom ppu glitches
Replies: 6
Views: 4140

Twin famicom ppu glitches

Hello everyone. I was made custom game cartrige, with micro mages game, based on original "F1 Race" famicom cartrige https://i.imgur.com/4wWGHQo.jpg https://i.imgur.com/d2wYCme.jpg https://i.imgur.com/16lhF1Y.jpg when i run this cart on dandy famiclone, game working fine https://i.imgur.com/M4DmusQ....