Can 2 MSX1's share programs through the CAS-connection?


Rookie (17)

Imagen del RSS

08-08-2013, 07:43

Hello All,
I have a question concerning the CAS connector: If I were to make the following cable, could MSX-A share programs with MSX-B, if A were to CSAVE and MSX-B were to CLOAD?

MSX A ---------- MSX B
gnd 1 ---------- 1 gnd
gnd 2 ---------- 2 gnd
gnd 3 ---------- 3 gnd
CMTout 4 ---------- 5 CMTin
CMTin 5 ---------- 4 CMTout
REM+ 6 ---------- 7 REM+
REM- 7 ---------- 6 REM-
gnd 8 ---------- 8 gnd

Has anybody tried this before?
Greetings, Ron.

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Enlighted (6033)

Imagen del NYYRIKKI

08-08-2013, 09:07

Sorry, it will not work... Sad Connecting REM-signals is useless (it is "output only") and you need only one GND, but the actual problem is that those CMT signals need to be amplified. If you find solution to that hardware problem then it should work software vice.

I'm not sure at all, but maybe something like this could solve your problem. (Use one of the channels for MSX A -> MSX B and the other for MSX B -> MSX A)

Por MicroTech

Champion (388)

Imagen del MicroTech

08-08-2013, 09:20

Maybe you could consider Acrobat-232 cable/adapter to connect 2 MSX computers using joystick port.


Rookie (17)

Imagen del RSS

09-08-2013, 12:23

Hi guys,

I'm gonna try a simple opamp circuit, and see where that gets me.
If successful then I may integrate it into the machines.

Thanks for the input!

Por HansO

Paladin (672)

Imagen del HansO

09-08-2013, 15:24

This is how I did it in the 80ties. Worked fine. Replace the old 741 with any modern cheap opamp.

Por Lord_Zett

Paladin (807)

Imagen del Lord_Zett

09-08-2013, 17:06

yes it works msxclub amsterdam once made a program with it. and yes you need som parts between them like up.

Por Lord_Zett

Paladin (807)

Imagen del Lord_Zett

09-08-2013, 17:08

the rem cable i once used to conect 2 msxes togetter. on rem to joystickport. so the signal to strart same time