TravelRec: Gameport to Midi question

**dj_stick** · Jul 14, 2004, 01:15 PM

Reading the docs on your site i have a questions
using the gameport header on my motherboard, which pins should i use?

Code:

 1. VCC
 2. GRX1_R
 3. GND
 4. GPSA2
 5. VCC
 6. GPX2_R
 7. GPY2_R
 8. MSI_R
 9. GPSA1
10. GND 
11. GPY1_R
12. VCC
13. GPSB1
14. MSO_R
15. GPSB2
16. NC

EDIT: looking at that it seems that MSI_R may be midi in and MSO_R is midi out… but i don't want to do anything until i am sure

TravelRec. · Jul 15, 2004, 07:36 AM

Hmmm,

not sure who built your header

, looks not really typical to me. VCC and GND are on the wrong place and the other abridgements say nothing to me --- seems you have to test around... Finding the out pin should not be a problem: attach a LED with 1k resistor between GND and all other pins (except VCC) and put some MIDI data out of the port and watch the LED; if it flashes, then it´s the out. Finding the in is a bit trickier. The best way is to build the interface, then place a safety resistor of 150 ohms between interface out and the desired pin and give some MIDI into the interface. Check with cubase or midi-ox for incoming data and if the pin is found, remove the resistor and connect the interface finally. Can´t really understand why the gameport headers differ around. No standard here or what

???

Greetings!

TravelRec.

**dj_stick** · Jul 15, 2004, 11:19 AM

afaik… the header is in an arry of 8X2… maybe if you look at it that way it would be easier to understand… i'll have another look at your diagram - i'm getting the idea thatthe MSx_R pins are midi i/o

TravelRec. · Jul 16, 2004, 02:24 PM

Quote:

Originally posted by dj_stick
afaik… the header is in an arry of 8X2…

Yes, that was my thought also - but how is your pin counting, like this:

1 o o 2
3 o o 4
5 o o 6
.
.
.
or

1 o o 9
2 o o 10
3 o o 11
.
.
.

The upper way is the most used, maybe there lies the misunderstanding... but anyway - you should be able to find the right pins

!

Greetings!

TravelRec.

Jul 15, 2004, 07:36 AM	#2
TravelRec. Alternative Audioproductions Join Date: Sep 2003 Location: Germany / Sachsen-Anhalt Posts: 1,710 Rep Power: 56	Hmmm, not sure who built your header , looks not really typical to me. VCC and GND are on the wrong place and the other abridgements say nothing to me --- seems you have to test around... Finding the out pin should not be a problem: attach a LED with 1k resistor between GND and all other pins (except VCC) and put some MIDI data out of the port and watch the LED; if it flashes, then it´s the out. Finding the in is a bit trickier. The best way is to build the interface, then place a safety resistor of 150 ohms between interface out and the desired pin and give some MIDI into the interface. Check with cubase or midi-ox for incoming data and if the pin is found, remove the resistor and connect the interface finally. Can´t really understand why the gameport headers differ around. No standard here or what ??? Greetings! TravelRec. __________________ Always take a look behind.