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3drobotics / solodevguide

Solo Development Guide (SDG).
http://dev.3dr.com/
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Enabling serial 2 for telemetry breaks gimbal #292

Open falense opened 8 years ago

falense commented 8 years ago

Hi!

We are developing a payload for the 3DR Solo that requires telemetry access to the Pixhawk. By enabling SER2 (on the accessory port), first by creating /fs/microsd/APM/uartD.en and then setting parameter _SERIAL2PROTOCOL to 1. The gimbal pitch control stops working.

Is the SER2 port on the accessory bay somehow connected to control of the official gimbal?

Hope to hear from you soon.

In advance thanks

falense commented 5 years ago

No, nothing short of dkwngrading2 firmware unfortunately

On Wed, Aug 21, 2019, 01:51 NiharikaPatel notifications@github.com wrote:

@sondree https://github.com/sondree did you ever find a way around this? I have the same issue.

Thanks

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NiharikaPatel commented 5 years ago

Hi @sondree It seems like my previous comment got deleted "@sondree did you ever find a way around this? I have the same issue. Thanks" But thank you for you response. I currently have Open Solo. Which firmware did you downgrade to for it to work?

falense commented 5 years ago

On the official firmware 2.3.0-1 is the last before it breaks integration. On the top of my head I dont remember which ardupilot firmware that corresponds to.

Are you saying that even with the open ardupilot fork serial is broken for later releases?

Please be aware that Serial2 has to be enabled both through serial in the flight controller shell and through a mavlink param to work.

On Thu, Aug 22, 2019, 02:07 NiharikaPatel notifications@github.com wrote:

Hi @sondree https://github.com/sondree It seems like my previous comment got deleted "@sondree https://github.com/sondree did you ever find a way around this? I have the same issue. Thanks" But thank you for you response. I currently have Open Solo. Which firmware did you downgrade to for it to work?

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falense commented 5 years ago

To clarify, firmwares after 2.3.0-1 breaks Serial2 altogether. I have not been able to use the gimbal on any firmware releases while having Serial2 enabled. Related issue being that later firmwares disable access to Serial2

ons. 21. aug. 2019 kl. 01:51 skrev NiharikaPatel notifications@github.com:

@sondree https://github.com/sondree did you ever find a way around this? I have the same issue.

Thanks

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/3drobotics/solodevguide/issues/292?email_source=notifications&email_token=AARMAWOCXPP72AMRGMMIEE3QFR7RVA5CNFSM4B4KAEPKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD4X74XA#issuecomment-523239004, or mute the thread https://github.com/notifications/unsubscribe-auth/AARMAWKES6NBZQ4IF2VQKGDQFR7RVANCNFSM4B4KAEPA .

NiharikaPatel commented 5 years ago

Hi @sondree we updated to Open Solo and then AC3.7 dev and everything seems to work fine now. We are able to use Serial2 to connect it to our Rpi and the gimbal still works even after changing the SERIAL2_PROTOCOL to 1

falense commented 5 years ago

Nice to know! Thanks for the update

On Tue, Aug 27, 2019, 02:50 NiharikaPatel notifications@github.com wrote:

Hi @sondree https://github.com/sondree we updated to Open Solo and then AC3.7 dev and everything seems to work fine now. We are able to use Serial2 to connect it to our Rpi and the gimbal still works even after changing the SERIAL2_PROTOCOL to 1

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