×
Important information

To file a bug, find instructions here: Reporting bugs

Please only post images or files to this forum which you either own the copyright to or you are sure can be distributed under an open source license.

CX 10D Traces

More
06 Oct 2016 18:55 #54676 by plaisthos
CX 10D Traces was created by plaisthos
I got a new CX 10D and it does not seem to work if any of my protocols of the DIY Multi module but maybe I did not check hard enough.

Anyway, I captured SPI traces from its remote but haven't had time to look into them yet. So here they are, perhaps someone else will find them useless.

The remote has small daughterboard with the rf chip. I cannot see the markings since the oscilator is glued on the chip :/

Files are here: gist.github.com/schwabe/9e8563f1abecbee4660763e798e4ee78

Please Log in or Create an account to join the conversation.

  • goebish
  • goebish's Avatar
  • Away
  • I Void Warranties
More
13 Oct 2016 00:56 - 13 Oct 2016 01:14 #54865 by goebish
Replied by goebish on topic CX 10D Traces
Yup, that's yet another new CX10 protocol.
It's using a XN297, it doesn't look very complex, but captures from a few more stock TX are required to figure out tx id (4 bytes) / rf channels (hops though 16 channels) relationship.

www.dropbox.com/s/ovcda4eefgrzexg/CX10D.txt?dl=0
Last edit: 13 Oct 2016 01:14 by goebish.

Please Log in or Create an account to join the conversation.

  • goebish
  • goebish's Avatar
  • Away
  • I Void Warranties
More
24 Oct 2016 22:44 #55357 by goebish
Replied by goebish on topic CX 10D Traces
Anyone else can provide captures from more transmitters please ?

Please Log in or Create an account to join the conversation.

More
25 Oct 2016 15:45 #55375 by ajtank
Replied by ajtank on topic CX 10D Traces
I got a CX-10WD, the variant with wifi fpv. The transmitter uses a XN297L. I can make captures if you think it helps.

Please Log in or Create an account to join the conversation.

  • goebish
  • goebish's Avatar
  • Away
  • I Void Warranties
More
25 Oct 2016 15:45 #55376 by goebish
Replied by goebish on topic CX 10D Traces
Yes please :)

Please Log in or Create an account to join the conversation.

More
25 Oct 2016 16:35 - 25 Oct 2016 16:40 #55377 by ajtank
Replied by ajtank on topic CX 10D Traces
See capture here
Not sure if it is same as CX-10D.
I can also capture another CX-10WD if needed but not tonight. I have to solder on the MCU's pins which makes my eyes ache.
Last edit: 25 Oct 2016 16:40 by ajtank.

Please Log in or Create an account to join the conversation.

  • goebish
  • goebish's Avatar
  • Away
  • I Void Warranties
More
25 Oct 2016 17:05 #55379 by goebish
Replied by goebish on topic CX 10D Traces
They're pretty similar, but not exactly the same, CX10D hops though 16 rf channels, while the CX10WD hops though 4.

Please Log in or Create an account to join the conversation.

More
26 Oct 2016 00:59 #55385 by ajtank
Replied by ajtank on topic CX 10D Traces
Let me know if you need captures of another CX10WD transmitter.

Please Log in or Create an account to join the conversation.

More
26 Nov 2016 03:08 #56283 by Stefan_Z
Replied by Stefan_Z on topic CX 10D Traces
I just received my CX-10D (no cam, just baro).
I also own a logic analyzer and know how to use it.
Does it make sense to make some captures?

Please Log in or Create an account to join the conversation.

  • goebish
  • goebish's Avatar
  • Away
  • I Void Warranties
More
26 Nov 2016 03:11 #56284 by goebish
Replied by goebish on topic CX 10D Traces
Yes, just a capture of the bind sequence, maybe that could help figure out txid / channels mapping.

Please Log in or Create an account to join the conversation.

More
26 Nov 2016 03:59 #56286 by Stefan_Z
Replied by Stefan_Z on topic CX 10D Traces
Alright! Will do it when I get up!
Thanks

Please Log in or Create an account to join the conversation.

More
26 Nov 2016 16:00 #56304 by Stefan_Z
Replied by Stefan_Z on topic CX 10D Traces
OK, I uploaded my first set of captures.
Sent you a PM goebish, don't want links to my private server out in the open.
But anyone who wants to see them can have the link - just reply / PM me please!

Please Log in or Create an account to join the conversation.

  • goebish
  • goebish's Avatar
  • Away
  • I Void Warranties
More
26 Nov 2016 20:39 #56311 by goebish
Replied by goebish on topic CX 10D Traces
Ok, it's downloaded, thanks !

Please Log in or Create an account to join the conversation.

More
28 Nov 2016 19:11 #56346 by Stefan_Z
Replied by Stefan_Z on topic CX 10D Traces
After closing down the remote again, I took some time to fly the CX-10D…
I must say that it isn't half bad at all!
The auto-height feature is somewhat not super-fine in terms of navigation, but kinda steady.
Auto-take-off is fun, the manual version is not always successful, especially when the battery is going low.
Auto-landing seems to be "going a bit down, checking gyro if there was a surface, doing it some more times to be sure, then turn off motors"
Crashing this thing is kinda different to other copters, it seems to detect crashes / blocking motors fast and then turns off all motors. Of cause that is needed, because there is no manual throttle, you always just tell it "up" or "down".

The 3 rate-settings are quite good, 1 is nice and slow, 3 is quick plus fast, yet precise spinning.

I modded the 10D in that I cut out the front & back of the battery-compartment, desoldered the stock-battery and added a cable with socket, so that I can switch out batteries with my other 150mA models.
Problem is that there is no forward / backward trim (those are start/land), so you have to balance the battery out.

I wonder how precise it will fly once it's deviated…

Please Log in or Create an account to join the conversation.

  • goebish
  • goebish's Avatar
  • Away
  • I Void Warranties
More
12 Dec 2016 01:37 #56743 by goebish
Replied by goebish on topic CX 10D Traces
ajtank, the link to your WD capture is dead, can you upload it again please ?

Please Log in or Create an account to join the conversation.

More
12 Dec 2016 03:59 #56745 by ajtank
Replied by ajtank on topic CX 10D Traces
Sorry I should have deleted them as I thought they were of no use. I shall redo it again and repost a new link.

Please Log in or Create an account to join the conversation.

More
12 Dec 2016 15:18 #56751 by ajtank
Replied by ajtank on topic CX 10D Traces
CX10WD binding capture is re-uploaded here

Please Log in or Create an account to join the conversation.

  • goebish
  • goebish's Avatar
  • Away
  • I Void Warranties
More
12 Dec 2016 15:21 #56752 by goebish
Replied by goebish on topic CX 10D Traces
Thanks, I've asked for more captures on rcgroups (D & WD), now let's wait :)

Please Log in or Create an account to join the conversation.

More
12 Dec 2016 15:39 #56755 by Stefan_Z
Replied by Stefan_Z on topic CX 10D Traces
I wonder if there is a code for trimming front/back, since that button does take-off/landing on the CX-10D.
would be handy for sure…

Please Log in or Create an account to join the conversation.

  • goebish
  • goebish's Avatar
  • Away
  • I Void Warranties
More
19 Dec 2016 12:38 - 20 Dec 2016 02:12 #56980 by goebish
Replied by goebish on topic CX 10D Traces
Hey there,

I'll start working on the CX10D once the CX35 is done, I think I'll implement it as a sub-format of the Q303 protocol as well..
I already had a look at all your captures, I see a pattern for txid / rf channels generation but dumps from more transmitters are welcome.

TX1 (plaisthos):
ID: 03 25 71 98
RF: 20 2f 3e 1a 29 38 14 23 32 41 1d 2c 3b 17 26 35

TX2 (Stefan_Z):
ID: 97 79 98 78
RF: 2e 16 31 19 34 1c 37 1f 3a 22 3d 25 40 28 14 2b

We can see that RF[num] = RF[num-1]+x , with x = 15Mhz for TX1, and 27Mhz for TX2, with a rollover when it reaches 0x42 (or 0x43 ?).
We' ve to find 3 things: how to calculate x for a given ID, how do we get the 1st frequency (minus x, for the rollover) of the list, and is the rollover on 0x42 or 0x43.
Last edit: 20 Dec 2016 02:12 by goebish.

Please Log in or Create an account to join the conversation.

Time to create page: 0.391 seconds
Powered by Kunena Forum