Opotech announce SD, ethernet and RS232 cartridge

Opotech announce SD, ethernet and RS232 cartridge

by snout on 04-01-2013, 13:52
Topic: Hardware
Tags: Opotech
Languages:

Brazilian hardware developer Opotech has announced an all-in-one cartridge that provides (micro)SD, ethernet and RS232 functionality. The design of the hardware has recently been finalized and all source code, software and firmware has been made available right here. The cartridges, of which a prototype can be seen in action over here, provides support for FAT16 partitions of maximum 2GB, which should be sufficient for most MSX users needs.

Relevant link: Opotech SD/Ehternet/RS232 interface

Comments (11)

By raymond

Champion (364)

raymond's picture

04-01-2013, 17:37

Very nice. I am very curious about the price...

By Gakubuchi

Expert (90)

Gakubuchi's picture

04-01-2013, 19:03

Will the Ethernet part be compatible with ObsoNet? More precisely, is it compatible with the TCP/IP UNAPI specification v1.0?
I'm also curious about the price, as it is a very small card with everything we should need! Big smile Very interesting...

By Eugeny_Brychkov

Paragon (1071)

Eugeny_Brychkov's picture

04-01-2013, 21:34

Great development!

By Marq

Champion (386)

Marq's picture

05-01-2013, 08:42

Yeah, keep us updated! My old SD reader is on the verge of dying. Any idea if this could work with an MSX1?

By david.d.haslett

Rookie (20)

david.d.haslett's picture

06-01-2013, 13:14

THe graniete machine shown is an MSX1 isnt it? Running DOS 1.2? Does it MSXDOS 2?

By raymond

Champion (364)

raymond's picture

06-01-2013, 15:39

I hope that MSX-DOS 2 is included like the Sunrise IDE interface has.

By snout

Ascended (15187)

snout's picture

06-01-2013, 16:01

Seems like a very interesting all-in-one cartridge indeed. Although I'm not too sure about using microSD. I'd rather see ordinary SD/MMC cards, as they are most compatible with all the other hardware I have.

Now I know you can use a converter, but that just feels like a bit of unnecessary extra hassle. I also spotted a picture of the cartridge with an ordinary SD slot, but the construction seemed extremely fragile to me. Still, an almost perfect all-in-one cartridge will do Smile

By syn

Paragon (1909)

syn's picture

07-01-2013, 01:38

I cant really figure out if this is going to be for sale or a solo private project.

By Lord_Zett

Paladin (807)

Lord_Zett's picture

07-01-2013, 23:10

intresting like the idea inc a pic

By konamiman

Paladin (1011)

konamiman's picture

08-01-2013, 09:11

There is not much information in the project page yet, but based on the little information available, for the Ethernet part it seems that:

  • The card's firmware implements already a TCP/IP stack
  • Everything is managed via I/O ports
  • There is no dedicated ROM (for Ethernet at least)

So it seems that a RAM based TCP/IP UNAPI implementation (which would be installed as a TSR, like InterNestor Lite) could be developed.

By NapalM

Master (234)

NapalM's picture

12-01-2013, 12:36

konamiman wrote:

So it seems that a RAM based TCP/IP UNAPI implementation (which would be installed as a TSR, like InterNestor Lite) could be developed.

Then, what amount of memory can use the theoretical TSR?
Can we have sufficient memory to any multiplayer game?