FDS MCDU with InterfaceIT

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JDoxey
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Joined: Tue Jan 12, 2021 9:07 pm

FDS MCDU with InterfaceIT

Post by JDoxey »

Hi,
I'm trying to connect an old FDS MCDU to Jeehell using InterfaceIT but I'm having problems with the line select keys, which seem to be random. I've sent a message to FDS, and they have contacted Tekworx. The response is:

"So that one isn’t a keyboard emulator if it is v7, it will be a unit that the interfaceIT API will talk to.  Since this is a pre v9 CDU, then with the API the option INTERFACEIT_BOARD_OPTION_CDUKEYS needs to be set so it will decode the LSK properly (we didn’t have enough inputs back then so had to get creative).

The team at JeeHell can email me if they need some assistance, however at a high level when they detect a CDU they need to check to see if it is a 0x331A or a 0x3302.  If it is a 0x3302 then they need to set the option INTERFACEIT_BOARD_OPTION_CDUKEYS so they keys will come in properly (and they might need to be different numbers, can’t remember that part)."

Is anyone able to tell me how to change the setting in the InterfaceIT app to decide the keys properly? I can't find a config file where I can change the setting...

Regards,
Justin

jeehell
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Re: FDS MCDU with InterfaceIT

Post by jeehell »

I had never heard of these old CDUs I will check what I can do.
Which version of my module do you use?
Since it does not have the same key mapping, I will somehow need you to map which key N° does what at some point.
Regards,
Jean Luc

JDoxey
Posts: 9
Joined: Tue Jan 12, 2021 9:07 pm

Re: FDS MCDU with InterfaceIT

Post by JDoxey »

Hi Jean Luc,
Many thanks for the reply. The module I'm using is IITcreator 54.0.18.
The switches that don't map properly are the line select keys, DIR and DATA. They Map as below:
LSK1 switch 57
LSK2 switch 58
LSK3 switch 58
LSK4 switch 59
LSK5 switch 59
LSK6 switch 59

RSK1 switch 60
RSK2 switch 61
RSK3 switch 61
RSK4 switch 62
RSK5 switch 62
RSK6 switch 62

DIR switch 59
DATA switch 62

The MCDU shows up in IITcreator as CDU 0LEDs/64 switches/0 7 Seg /8 dateline.

I have it selected to be MCDU Captain.

Regards,
Justin

jeehell
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Re: FDS MCDU with InterfaceIT

Post by jeehell »

just to know, in my software, you installed FDS "legacy module" or "new module"?
Regards,
Jean Luc

JDoxey
Posts: 9
Joined: Tue Jan 12, 2021 9:07 pm

Re: FDS MCDU with InterfaceIT

Post by JDoxey »

Hi,
I selected the legacy FDS option.

Regards,
Justin

jeehell
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Location: France
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Re: FDS MCDU with InterfaceIT

Post by jeehell »

Hi

please download this IIT creator app:
https://1drv.ms/u/s!AgqinWqhYcTFoiIhwff ... p?e=NpREFu
Let me know if with it you can map the LSK/RSK buttons to unique IDs.
Regards,
Jean Luc

JDoxey
Posts: 9
Joined: Tue Jan 12, 2021 9:07 pm

Re: FDS MCDU with InterfaceIT

Post by JDoxey »

Hi Jean Luc,
Many thanks for the file. The LSK keys and DIR button all work, but the RSK and DATA buttons are not detected.

Less assignments are

LSK1 switch 57
LSK2 switch 58
LSK3 switch 59
LSK4 switch 60
LSK5 switch 61
LSK6 switch 62
DIR switch 63

On one occasion when I pressed RSK1 it showed as switch 64 but I couldn't get it to do it again. If I keep pressing the RSK buttons the application closes down.

Regards,
Justin

JDoxey
Posts: 9
Joined: Tue Jan 12, 2021 9:07 pm

Re: FDS MCDU with InterfaceIT

Post by JDoxey »

I think inhave just spotted a problem in that there are 69 buttons on the MCDU but the interface board is recognised as only having 64 switches. That means it won't be possible to map every button.

The interface card is recognised as CDU 0 LEDs / 64 switches / 0 7 Deg/ 8 dateline.

Regards,
Justin

jeehell
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Re: FDS MCDU with InterfaceIT

Post by jeehell »

Ok I may have a clue. I will try to put a fix later today.
Regards,
Jean Luc

jeehell
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Re: FDS MCDU with InterfaceIT

Post by jeehell »

Regards,
Jean Luc

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