possibly there is no intrest in resurecting such old thread, but since i've already put 3 days of my time into this, maybe it would be good for someone somewhere if i shared the results
i've developed simple SNES to 3DO adaptor, currently supporting only one controller - its not that its complicated when you've basics covered, but i would like to get some feedback or buttons mappings first
so here we go
schematics - (warining - do not mount R1 and R2, add crystal to pins #4 and #5 of MCU)
board layout - easy enough to do at home with modest setup
assembly drawings
HEX file for programming AVR - please set CLKDIV8 to disabled and CLKSEL so it would use crystal over 8mhz (1110 it was)
thing in action
closeup of the board
this board was designed to fit inside KM-100B case by
maszczyk
pins for SNES ports were taken from split DB25 male plug as i couldn't find any supplier for these sockets locally
Sebastian