Jump to content
IGNORED

Colecovision Replacement Motherboard 1.2


Megatron1999
 Share

Recommended Posts

See the link in my signature. I need to get the expansion port working. Hopefully another prototype during winter sometime. Video options would be available from me, otherwise the F18A.

Maybe I need to change the board shape so it fits in a Jaguar shell. ;)

Edited by 5-11under
  • Like 2
Link to comment
Share on other sites

See the link in my signature. I need to get the expansion port working. Hopefully another prototype during winter sometime. Video options would be available from me, otherwise the F18A.

Maybe I need to change the board shape so it fits in a Jaguar shell. ;)

it will be hard to fit the expension port in the jaguar shell

  • Like 1
Link to comment
Share on other sites

See the link in my signature. I need to get the expansion port working. Hopefully another prototype during winter sometime. Video options would be available from me, otherwise the F18A.

Maybe I need to change the board shape so it fits in a Jaguar shell. ;)

Hi.

 

Any more details on Video Options??

 

Would/will there be:

 

TMS9918

TMS9928

TMS9929

V99x8 ??

 

Thanks

Link to comment
Share on other sites

Hi.

 

Any more details on Video Options??

 

Would/will there be:

 

TMS9918

TMS9928

TMS9929

V99x8 ??

 

Thanks

 

Probably... TMS9918 for composite, TMS9928 for component/YPbPr, F18A for VGA. I haven't investigated TMS9929. V99x8 I don't think I'm too interested in. Is it compatible by default?

Link to comment
Share on other sites

The V9938 and V9958 aren't even pin compatible with the TMS chips so no.

 

Not to mention that the 9938/58 are only *software* compatible with the 9918A/28/29 for well behaved software, and will not work with some games. I know from experience during F18A development that there are CV games out there that abuse the VDP register selection bits, and on a VDP with an expanded register set (like the 9938/58 and F18A) that will cause problems. The CV is what exposed this to me during F18A testing and the reason I had to introduce the register-lock protection on the F18A. The 9938/58 do not have such register protection and would end up with corrupt register settings.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...