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A rather odd solution to my control set up? Feedback & advice please!

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slapaham:

Thanks for all the advice. Well, I opted for all the leads so I can try the first (and rather stupid) suggestion and also the more realistic ps/2 splitting approach (which I have my fingers crossed on! I'll report back either way when the leads arrive! :)

slapaham:

If anyone was interested the first solution didn't work - as expected! ;D

Interestingly, the LED lights on the keyboard lit up so power was provided to it via the setup but no signals could be sent...

Now I'm just awaiting the majority of the cables for the second solution to give that a try - I have much more faith that this may work... I'll report back either way once I've tried! :)

Turnarcades:

I've been in the situation where a solution sounds viable yet no dedicated cable exists and have used daisy-chaining to accomplish many home projects, but due to the nature of devices you are hoping to link it was always going to encounter some kind of 'language' barrier between the devices. These days we take for granted the USB connection as a universal socket that accepts anything but there still has to be code transfers somewhere in the link and that's where the system will falter.

It is annoying when you come up with an idea that in terms of sockets and plugs will work, yet you find out the reason such a cable/device doesn't exist is due to software/firmware type issues.

slapaham:

I agree with taking USB for granted - I have come up against so many problems with USB in recent times that if I can avoid I tend to!

I think that the PS/2 solution has a reasonably good chance of working - I think that it is reasonably simple and no overly complicated. It also doesn't mix signals and different types of cables... fingers crossed - if I can get this all to work I will be one happy chap! I'm trying to prove to myself that an Xbox cab is easier than most people may think to build and that it can be done on a reasonable budget...

Having said that, as its the first time I've attempted it I've ended up with a load of stuff I don't need! Cables, Xboxes, etc... oh well, I know I'll probably end up using them usefully in the end!! ;D

AndyWarne:

The USB solution definitely wont work.

The PS/2 solution stands a small chance of working. The host grabs the PS/2 interface quite often in normal use, for example when requesting a resend, or setting keyboard LEDs. It might be that the adaptors dont support the LEDs nor the resend command, so it might work. But its possible that you might get hanging if either of the adaptors does issue a request to the port, because the request will be mis-interpreted by the other adaptor as being a request from the keyboard to send data.
At power-on both adaptors might try to send a reset command to the keyboard at the same time, along with possibly other commands, which might cause a problem as well.


Andy

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