Jumper T8SG V2 Plus and Crossfire

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16 Apr 2019 17:05 #73924 by sebrob7
Jumper T8SG V2 Plus and Crossfire was created by sebrob7
I bought the Jumper T8SG V2 Plus. I have read a lot on that topic but I can't find anything telling me that the Jumper T8SG will soon support Crossfire entirely. I'm a newbie to Deviation and seeing the guys with OpenTX supporting full Crossfire makes me regret my choice jumping in DeviationTX with the T8SG, even if that looks like an awesome radio on paper and the interface of Deviation is pretty cool.

Can you tell me when Crossfire will be completely supported by my T8SG, anyone knows it?

Any advise to run Crossfire on my T8SG right now without using another radio (Taranis) to modify the data in my Crossfire device and bind it to my Crossfire receiver?

Do you know if a new version of DeviationTX will soon be released, since the last one has been made in 2016, which is a millennial ago in that hobby...???

Thanks!

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16 Apr 2019 18:33 - 16 Apr 2019 18:34 #73927 by hexfet
Replied by hexfet on topic Jumper T8SG V2 Plus and Crossfire
Current status is that CRSF protocol for control and telemetry is part of the nightly builds . Support for configuration of Crossfire devices is available in this test build . Configuration has been successfully tested with the full-size Crossfire TX, the Micro TX, and the Nano RX. There's an issue with the diversity receiver that is currently being worked on. If youi'd like to help with testing it would be appreciated.

A hardware mod is required to use CRSF in the T8SG Plus. A couple of users with Micro TX report having to make a second modification. If you have the Micro TX it will be good to get another check on this issue. Details are in the 7E user manual linked on the left, in the CRSF protocol section.

Discussion for CRSF development took place on this thread if you want to see the history. I think here is a better place to continue. Should have a new test build for the diversity receiver issue tomorrow.

The next release has been talked about but no date set. The nightly builds have been very stable and many users have it installed.
Last edit: 16 Apr 2019 18:34 by hexfet.

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17 Apr 2019 01:30 - 17 Apr 2019 02:47 #73952 by hexfet
Replied by hexfet on topic Jumper T8SG V2 Plus and Crossfire
Nowhere, the test build ( c4cd85f ) is updated. Found a bug in the test code, so this should get us back to debugging the original issue. Please try configuring the diversity receiver. If the tx doesn't shutdown, please post the numbers on the top line of the screen. Otherwise a video :) Wait about 10 seconds or so after selecting the diversity receiver before pressing any buttons.

Do you have any equipment for capturing serial data - FTDI or logic analyzer? Would like to get a capture of the diversity receiver parameters.
Last edit: 17 Apr 2019 02:47 by hexfet.

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17 Apr 2019 17:10 - 17 Apr 2019 17:15 #73962 by Nowhere
Replied by Nowhere on topic Jumper T8SG V2 Plus and Crossfire
Everything works in this build. Numbers is: 2401 47 2 9. In the video I went to each menu item.
Now I dont have an FTDI analyzer, but I can get it in the next few days if it helps in development. I will be glad to help in further development! (write PM me about it) Many thanks for the build with support Diversity Nano RX !

Link to video
Last edit: 17 Apr 2019 17:15 by Nowhere.

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17 Apr 2019 18:42 - 18 Apr 2019 20:19 #73964 by hexfet
Replied by hexfet on topic Jumper T8SG V2 Plus and Crossfire
Great! Thanks for testing.

The numbers explain the issue. In the test build the maximum for the first two values is 2200 and 45. I'll submit a PR to accommodate the diversity receiver.

To make an FTDI capture the trainer port is used. The data rate and format is 400000, n, 8, 1. Use a program like RealTerm to capture data from when the CRSF device is selected until the parameters finish loading. Save the data to a file and upload. I will send you a pm.
Last edit: 18 Apr 2019 20:19 by hexfet.

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18 Apr 2019 03:58 #73981 by hexfet
Replied by hexfet on topic Jumper T8SG V2 Plus and Crossfire
Please try the test build (d106d57) here . This does not have the debugging code, and is up-to-date with the nightly build.

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18 Apr 2019 07:51 #73985 by Nowhere
Replied by Nowhere on topic Jumper T8SG V2 Plus and Crossfire
I tested the build with my configuration (micro tx, diversity nano rx) everything works.

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18 Apr 2019 17:46 #73997 by sebrob7
Replied by sebrob7 on topic Jumper T8SG V2 Plus and Crossfire
Thank you so much! :)

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