OS v8

Maybe the "Quartus II Programmer" would be more suitable?:-
https://www.altera.com/download/programming/quartus2/pq2-index.jsp

 

i will make a youtube video how to update via sd card take care guys i will do it soon as i can

 

we talking about firmware update (not OS)

 

Hi,
that's very nice. A small and easy to use tool would be helpful.

 

I have just one question about the Everdrive. Does it go in any Mega Drive? for example i wont need to mod one ?

 

everdrive will be work on any original megadrive/genesis except genesis3

 

Can i ask why wont it work in a genesis 3 ?

 

i think that some signals is unconnected to cart port on genesis3 (cpu clock or/and !time).
BTW: currently i create new firmware for provide compatibility with genesis3 and firecore clones

 

Some suggestions for next OS:

(1) having an option to force the game mode (SMS, SMD) for unlicensed programs that do not have correct "SEGA" or "TMS SEGA" string in ROM header.

(2) having an option so that OS does not initialize / reset Z80 (RAM, registers,...) on startup: this is essentially for testing purpose, to see the initial state of Z80 on various models using a dedicated test program.

(3) when Z80 initialization is enabled, initialize SP register to $DFF0: this is indeed required by some SMS games that expect this register to be initialized by SMS BIOS.

Thank you

 

i think than i can implement all it in new OS. hope that SP register init can help for some SMS games like "addams famely"

 

only firmware (non os) may provide support with genesis3 and firecore

 

latest firmware still not supported with genesis3, so you even can't run megadrive games on genesis3.
about genesis3 and sms: as far as i know genesis3 incompatible with SMS mode, even if you will use official power base converter. some hardware modiffication need for enable compatibility with sms mode on genesis3

 

Will this work for flashing?

http://cgi.ebay.com/ByteBlaster-II-...482?pt=LH_DefaultDomain_0&hash=item4aa1bbcd5a

 

yes, it will work
also you need BH-10R plug, like this

 

New OS update http://krikzz.com/pub/support/everdrive-md/os-bin/os-v13.bin
v13 06.09.2010 1)spansion memory support 2)about menu 3)module menu moved in toolbox

 

Hello,

In order to get a Model 3 VA2 (ASIC 315-6123) to work with the Everdrive you have to do the Virtual Racing fix.

-Bridge pins B16 and B26 on the cartridge slot
-Solder pin B19 to the side of solder spot C42 closest to the ASIC