C64-DTV Cart Slot Connection

vb_master · Post by **vb_master** » Thu Mar 10, 2005 3:50 pm

I was wondering if I could scrape the glopie-top off (where the TSOP spot is) and wire up a cartridge slot?

Post by **gannon** » Thu Mar 10, 2005 3:56 pm

Possibly, I posted the schematic for the c64dtv in another thread. Seek and ye shall find

vb_master · Post by **vb_master** » Thu Mar 10, 2005 6:27 pm

gannon wrote:Possibly, I posted the schematic for the c64dtv in another thread. Seek and ye shall find

Ah, I disconnected the power to the TSOP glop-top, and it would not boot. Oh well.

vb_master · Post by **vb_master** » Thu Mar 10, 2005 6:33 pm

Too many DTV threads, cannot find!

bleugh · Post by **bleugh** » Fri Mar 11, 2005 4:09 am

there are no points to solder a cart port on the DTV, even if you successfully remove the glooop, the address lines are not present.

there is a FULL IEC interface, and some people are working on a CF or MMC type interface that effectivley will emulate a 1541

Post by **gannon** » Fri Mar 11, 2005 6:03 am

http://benheck.com/v-web/bulletin/bb/vi ... highlight=

Looks to me like that schematic shows some address and data lines outside of the main chip, unless all of that is covered in a glob top.

Post by **Sparkfist** » Fri Mar 11, 2005 8:41 am

I'm supprised that no one has done the cart mod yet. You think its because more cart games can be loaded onto a floppy and so makes it easier to use then add a cart slot?

vb_master · Post by **vb_master** » Fri Mar 11, 2005 3:56 pm

gannon wrote:http://benheck.com/v-web/bulletin/bb/vi ... highlight=

Looks to me like that schematic shows some address and data lines outside of the main chip, unless all of that is covered in a glob top.

How did you get a hold of that?

HK-47 · Post by **HK-47** » Fri Mar 11, 2005 4:17 pm

Go to http://www.jbrain.com/vicug/gallery/alb ... G_1205.jpg ...
Youll see the pic nice and big... Its scaled way down in the post...

Post by **gannon** » Fri Mar 11, 2005 4:17 pm

google is a mysterious thing

Post by **SpongeBuell** » Sat Mar 12, 2005 1:23 am

If you're gonna make a cart slot, you may want this for the cart side:

http://www.hardwarebook.net/connector/c ... gec64.html

it seems like there is an extra address line on the DTV, since there doesn't seem to be an A16 line on the real cart. I suppose you'd need it on the DTV, since that has a big ROM for all the games. Then again, I'm not familiar with address and data lines (yet) so I'm not sure.

vb_master · Post by **vb_master** » Sat Mar 12, 2005 9:00 am

As for address 16, it might just be to support the big ROM, but other than that everything's there.

I can't try it, as I cut some traces which I cannot reconnect.

Post by **gannon** » Sat Mar 12, 2005 10:23 am

There are 21 address lines on the c64 dtv, only 16 if I can count on the c64 cart slot. Maybe for use with the floppy drive, or just for the extra size in the roms

bleugh · Post by **bleugh** » Mon Mar 14, 2005 4:20 pm

Yes, all the address lines are present on the ASIC,
BUT, all the PCB pads got removed during the cost reduction phaze of the joystick.
the intention of the designer originaly was to have all address lines accessable!