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8s w/ 1002 or 1202rx ???

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16 Feb 2014 08:23 #20348 by Kdean
8s w/ 1002 or 1202rx ??? was created by Kdean
This might have been brought up before, but.....

I got my 8s for a backup to my 12s. I found out tonight as I was setting up one of my bigger helis, that the 8s will not bind with the 1002rx in my heli.

Is there a way to make it so the deviation tx can bind with a rx that has a higher number of channels than the tx?

Or, is it a hardware thing that makes it impossible?

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16 Feb 2014 08:54 #20349 by IMback!
Replied by IMback! on topic 8s w/ 1002 or 1202rx ???
actually all devo txes with deviation are capable of 12 channels. so it should bind. Have you set # of channels to 12 in model setup? I don't know if that has any influence on binding but its worth _a try. Also have you cleared all fixed ids?

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16 Feb 2014 13:06 #20353 by RandMental
Replied by RandMental on topic 8s w/ 1002 or 1202rx ???
I have a number of RX1002s binded to my Devo8s with the original Dvenetion software, so there is no HW issue or RX firmware issue that should prevent it from binding with Deviation

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16 Feb 2014 16:39 #20367 by Kdean
Replied by Kdean on topic 8s w/ 1002 or 1202rx ???
Ok, more details...

I transfered all model through usb model folder. Did not make any changes to the bind code, it the stock 123456. I also have the walkera telemetry unit bound with the 1002rx, and it binds fine with my 12s. But when I try to bind with the 8s, no bind. I tried rebind, without doing the bind plug in the rx and resetting the telem bind, did not work. I tried changing the number of channels in the tx, that did not work. Im affraid if i do a total rebind using bind plug that i will have to do the same when I want to use the 12s again. This is a trex 600 going in a scale MD500 fuse, so always needing to do a full rebind is not an option.

Is there something im not doing right?

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16 Feb 2014 17:07 - 16 Feb 2014 17:08 #20372 by vlad_vy
Replied by vlad_vy on topic 8s w/ 1002 or 1202rx ???
You can't bind to other Tx without full rebind. Any Tx has unique ID code.
Last edit: 16 Feb 2014 17:08 by vlad_vy.

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16 Feb 2014 17:10 #20373 by RandMental
Replied by RandMental on topic 8s w/ 1002 or 1202rx ???
You cannot have two TX'es binded to the same receiver at the same time, even if they used the same fixed ID. The internal unique TX id is mixed with your Fixed ID code to provide a single unique ID which which is sent to the RX when you bind.

You will have to use dynamic binding (no fixed ID) and rebind every time if you want to use one of the two TX'es on the one receiver

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16 Feb 2014 17:21 #20376 by linux-user
Replied by linux-user on topic 8s w/ 1002 or 1202rx ???

Kdean wrote: Ok, more details...
I transfered all model through usb model folder. Did not make any changes to the bind code, it the stock 123456.

You have to clear the fixed-ID

Im affraid if i do a total rebind using bind plug that i will have to do the same when I want to use the 12s again.

Yes, I am afraid to.
The fixed-ID consists of 2 parts. The first is the number you enter, the second is derived from the Hardware of the TX
So yes, if you change your TX you have to do the binding procedure again.

This is a trex 600 going in a scale MD500 fuse, so always needing to do a full rebind is not an option.

If you want to be able to fly one bird with two TX's auto-binding is a possible option. But for a trex 600 it is probably saver to use fixed-ID and stay with one TX.

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16 Feb 2014 18:17 #20384 by Kdean
Replied by Kdean on topic 8s w/ 1002 or 1202rx ???
But i am able to bind/fly my trex 500 (using 2801pro rx set with fixed ID) on both tx's with no need to rebind.....?

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16 Feb 2014 18:46 - 16 Feb 2014 18:47 #20387 by Blayd
Replied by Blayd on topic 8s w/ 1002 or 1202rx ???
On both the 8S and the 12?? With fixed ID? Wondering myself as I may be doing the same thing.. I have several backup Tx's, so once I set a fixed ID on all 4 heli's, I was hping this would work for all Tx's.
Devo 8S
Trex500ESP
Trex500ESP (Belted tail)
HC500SE
Trex700N2E
Last edit: 16 Feb 2014 18:47 by Blayd.

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16 Feb 2014 18:54 #20390 by Kdean
Replied by Kdean on topic 8s w/ 1002 or 1202rx ???
Yes, no problems at all. Fixed ID is 654321 on both tx's and they both work without the need to rebind.

Maybe its the telemetry module that is not allowing the 8s to bind, but the 1002rx is not binding either.

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16 Feb 2014 19:22 #20391 by Kdean
Replied by Kdean on topic 8s w/ 1002 or 1202rx ???
Just did some more testing.

Tried to bind 8s with my 1202rx on my trex600 3D heli (no telem) Fixed ID and it did not bind.

Tried to bind 8s with balsa plane w/2801pro rx Fixed ID and it binds.

It looks like only the devo rx's are not cooperating with using multiple tx's and not having to rebind.

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16 Feb 2014 19:53 #20393 by PhracturedBlue
Replied by PhracturedBlue on topic 8s w/ 1002 or 1202rx ???
Right.
The WK2801 (and J6Pro) protocol uses your fixed-id as is. You can swap Tx as long as you use the same fixed-id
The Devo (and DSM2/DSMx) protocol uses your fixed-id mixed with the module id (unique for each transmitter) so you can't bind 2 raido to the same model even with the same fixed-id

This was done in Deviation to match how the manufacturers do it.

It wouldn't be too hard to allow overriding the txid in hardware.ini to allow 2 transmitters with the same fixed-id to talk to the same receiver.

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16 Feb 2014 20:05 #20396 by Kdean
Replied by Kdean on topic 8s w/ 1002 or 1202rx ???
Can you please do the override???
I will put a ticket in bitbucket.
Im sure there are, and will be, more guys that will want a backup tx that they can use at any time without going through the bind process every time they swap tx's.

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17 Feb 2014 03:55 #20421 by Kdean
Replied by Kdean on topic 8s w/ 1002 or 1202rx ???
Dropped a ticket in bitbucket....

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17 Feb 2014 04:43 #20423 by PhracturedBlue
Replied by PhracturedBlue on topic 8s w/ 1002 or 1202rx ???
I checked in code that should work, but is untested. I disabled it for the dveo7e for now, but it should work on all others.

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17 Feb 2014 05:01 - 17 Feb 2014 05:03 #20424 by vlad_vy
Replied by vlad_vy on topic 8s w/ 1002 or 1202rx ???
What does it mean (src/config/hardware.c)?

#if defined PROTO_HAS_CYRF6936 && ! defined MODULAR
if(MATCH_KEY("txid-cyrf6936")) {
void *ptr = &Transmitter.cyrf6936_id;
*((u32 *)ptr) = strtol(value, NULL, 16);
Transmitter.cyrf6936_id[4] = 0xaa;
Transmitter.cyrf6936_id[4] = 0xbb;
 }
#endif

Double assignment?
Last edit: 17 Feb 2014 05:03 by vlad_vy.

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17 Feb 2014 05:27 #20425 by PhracturedBlue
Replied by PhracturedBlue on topic 8s w/ 1002 or 1202rx ???
It means the code won't work :)

It is fixed now.

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17 Feb 2014 06:53 #20429 by Kdean
Replied by Kdean on topic 8s w/ 1002 or 1202rx ???
Very cool, i'll test it as soon as i get a hold of the nightly.

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17 Feb 2014 08:57 - 17 Feb 2014 11:36 #20433 by RandMental
Replied by RandMental on topic 8s w/ 1002 or 1202rx ???
I have not looked at the code yet, we should make this universal bind mode the exception to the rule, configured per model and perhaps only enabled by editing the ini file directly.

It will take one serious accident to destroy Deviation credibility at a club when two inexperience users with the same default 123456 FIX ID switch their TX'es on and bind and destroy each others models.
Last edit: 17 Feb 2014 11:36 by RandMental.

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17 Feb 2014 14:03 #20443 by PhracturedBlue
Replied by PhracturedBlue on topic 8s w/ 1002 or 1202rx ???
This is not model specific. That would be bad, since it would mean sharing a model would also mean sharing an ID. Instead it is in the hardware.ini file. If you are inexperienced, you won't even know about it. Once you use it you choose a new code and hopefully make it random. It is extraordinarily unlikely to choose a code that matches a stock tx, so the worst case is that you choose a code someone else chose when you both decided to use this override with Deviation. You have 4-billion values to choose from, if you both chose the same, I have little sympathy.

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