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chart45

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Posts posted by chart45

  1. Posted

    ok i finally test all sgm game that i have on 2 standalone adam and they all work... the game i didnt test yet since i lent them to a friend are gradius and peinguin adventure from opcode.. i will go get them and see if they work... so maybe some game will not work in the future but for the previous release they seem to work perfectly...

     

    i dont think i will do more test on this.. you build it if you want...

     

    if you want to be sure 100% compatibilities get the new phoenix or a sgm...

  2. Posted

    i know how to add the 8k ram as you can see in the short video... you can also see how many ic's it require to do it so if i add the 8k ram i should put the 24k too so it's a ttl sgm and my ass get kick out so i wont do it... is there other games that require the full 32k of ram?? i will try every game that i have to see if there is some that dont work on the adam with the ay only...

     

  4. Posted

    Hmmm... I'm not sure this is going to work for every SGM game. As far as I know, the ADAM doesn't let the programmer switch the lower 8K (used by the Coleco BIOS) into pure RAM like the real SGM does. So any SGM game that runs in "full 32K RAM" mode (such as Gauntlet) is probably not going to work with this device.

    you are the only one who can test it since the game is not released yet... i can ship this one to you if you want to test... i made this to see if its possible to only use the ay on the adam and yes it works for the part i can test... it also work on the coleco for meca 8 and 9 since the game dont check for extra ram... i wont sell or build them for people its there for anybody who want to try it...

     

    let me know if you want to try it...

  9. Posted

    Trying to understand the context of this thread. Is this a plan for chip replacement on motherboard to integrate SGM functionality for homebrew games?

    at that time Ed was mia and i wanted to play sgm game ... i didnt know fuck all about z80 and address decoding so they help me to add 24k ram to my coleco...

  10. Posted · Edited by chart45

     

    Is that due to the C100 capacitor?

    i never tried on the c100 sice it's after the c88 where is the jonction of the exp port sound and audio out from the sn chip... but i know for sure the sound will be low with the sgm cause my first coleco had this av mod and i had to move the wire to the c88 to have the correct volume with the sgm

  13. Posted

    That looks cool, the very first native HDMI upgrade for the ColecoVision that requires no internal modification. I hope you enjoy your design, its your decision if you do not want to mass produce this product. Its a lot of work and money to bring new hardware to the ColecoVision/ADAM community.

     

    the cost is very low exept for the f18a him self

     

    pcb print in china around 4$

    xilinxs 2 or 3 $ on ebay

    40 pin socket under 1$

    60 pin edge connector can be ordered on ebay 10 for 15$

    f18a new version?

  16. Posted

     

     

    Wait. Is this accurate? I just read through the entire thread again and it would appear that so far only *ONE* person is unable to play the game at all. Everyone else can at least play it on some sort of system configuration that they own. And I've even seen several reports that the game does work with some mods like F18a and A/V modded systems. Am I reading the posts incorrectly?

     

    Sorry, but I agree with Albert here:

     

    since most of us have multiple system we can play the game.. do you have this game??? probably can you play with your f18a coleco ... me when i turn it on i get the f18a error screen thant i turn it off and on fast than the game start and i can play and pass to level 2... my other coleco is fully stock so i cant test... on my normal adam it work perfectly too. i still have to test on my other adam that play sgm game with out the sgm in to see if the game works..

  17. Posted

    arcadevision your game is awesome and im sure you did all the beta testing on pal and ntsc colecovision...we cant blame you for the ntsc vram problem... by working on a fix for people who bought your game you show us respect and im sure for future game you will take a special care for those problematic vram ... i bought you game and will buy again if you release another one... we should apreciate more the effort to bring highclass game like risky rick... game like this raise the level of game for our loved system.. thank you

    • Like 3

  18. Posted

    I believe they said they are working on something like this already, if the cart doesn't work on your CV.

    for people who bought the cart yes but for people who dont buy cart... collectorvision teampixelboy opcode they all knows who buying their games... we are a small groupe of people who buy all their games and the build around 75 to 100 copies of each games... exeption for some game like sydney,mario bros,pacman collection and maybe others but not that much... buy selling the rom after the cart are sold out they can get more potential cib customer...by putting info in the rom you prevent the share of roms.... most people here dump their cart play on atarimax and put the box on a shelf they dont even resale it...all publisher could put a copy of their game on ebay at the selling price and leave it there to prevent the high priced resale...

  21. Posted

    There are no "ADAM familly computer system" logo on this game box, instructions or cartridge.

    So, like others games released in the 80s for ColecoVision, we can't garanty that it will be compatible. (but great if it work)

    works on my adam stand alone

    works on my f18a coleco with a little help😂

    works perfectly on my 100% stock coleco

     

    now if the cant pass to level 2 is beacause a really thight timing ok but if its part of a drm its not working since people with fixed coleco have problem. finding a 100% stock working coleco today its realy hard.. vram is the most common problem on those system.. so the +5v vram is in a lot of coleco

  22. Posted · Edited by chart45

    ok got it to work on my f18a coleco by cycling the rocker switch off on fast and it pass to level 2... now im happy to be able to play on my main system but it suck that i cant put the game on my atarimax... hopefully they will release the game rom to people who bought the game when sold out for ever..they can put my name in the code like the demo version i dont care...

  25. Posted

    ok got my cart today... try on my f18a and it do nothing the game does not start... play on my adam work perfectly pass the screen to level 2... dump the cart burn the eprom game work on my f18a

    but dont pass to level 2 and dont pass to level 2 on the adam too so i dont know... maybe i will open my cart to see .. i will think about it...

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