Search found 3 matches

by Squall926
Thu Feb 13, 2020 7:29 pm
Forum: Cartridge
Topic: Designing MD sdcard flashcart for fun, advice?
Replies: 36
Views: 12333

Re: Designing MD sdcard flashcart for fun, advice?

During the flash loaging the screen show some program status like 10%, 20%, 80%...? i'm tryting do this. Show memory program status, but i dont know how copy a block code to internal sram and jump to it. Since i need remove flash to program. The shift is only to put on bus the data with status when ...
by Squall926
Thu Feb 13, 2020 1:26 am
Forum: Cartridge
Topic: Designing MD sdcard flashcart for fun, advice?
Replies: 36
Views: 12333

Re: Designing MD sdcard flashcart for fun, advice?

Hi! I've been seeing your project and I can say, excellent work! I made a card using sram and avr128. Now I'm trying to load it on the screen while loading on the sram. I need to understand how to load and execute a block of code on the console ram, I intend to use a 74HC595 on the date bus to incre...
by Squall926
Sun Jul 29, 2012 2:07 pm
Forum: Cartridge
Topic: AVR cart Different
Replies: 0
Views: 4025

AVR cart Different

Hello, Good day! I'm trying to make a card for MD somewhat different from conventional. I'm using a Xplained-A1 32MHz with 8MB of DRAM. The idea is to read the address of the MD, and release the 16bit port avr, but is 32MHz is fast enough for the mega drive? Using DRAM chips with mega32 gives 300 kB...