AVR cart Different

For anything related to cart (SRAM, SF2 mapper, audio, CD mode 1, ...)

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Squall926
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Joined: Sat Jun 02, 2012 2:14 pm

AVR cart Different

Post by Squall926 » Sun Jul 29, 2012 2:07 pm

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 / sec.
http://www.myplace.nu/avr/dram/index.htm

UMDKv1 the project, the author uses an interrupt to get the choice of the User in MD (+ reads the address), in which pin of the cartridge MD I see this break?

I Buyed 4 sram 512x8 to try a simple cart.

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