Details the mapping between peripherals on Solo

[njoubert]

This is crucial information for developers attempting to use the accessory port, such as myself. Details the mapping between serial ports on the accessory port, and the various parameter settings, serial ports, and internal naming schemes of the HAL in Arducopter.

[njoubert]

@mrpollo

[mrpollo]

hey @liamstask @johnfinley would you guys mind double-checking this is accurate info?

[hamishwillee]

@njoubert Anything else you'd like to see on this page to make the accessory bay easier to use?

[njoubert]

@hamishwillee Perfect timing: I'm just writing a post on https://discuss.dronekit.io/c/solo-development

It'd be helpful to include:

• how the USB ports map to the iMX6 and Pixhawk2
• over what peripheral does the iMX6 and Pixhawk2 communicate (so that I don't accidentally prevent those from communicating)
• whether iMX6 comes with FTDI and similar drivers (aka can I plug in an arduino directly? with what cable)
• current limits on the power pins
• voltage levels of the serial pins

[njoubert]

BTW, here's the documentation I'm putting together for integrating Piksi into Solo: https://github.com/njoubert/spooky#integrating-piksi-with-3dr-solo

[hamishwillee]

Hi @njoubert Thanks! I'd still include all those questions on your solo development post :-) Feel free to cross link here and I'll ask internally if we can get some answers.

[njoubert]

Thanks guys!

Also, it's totally great to be able to communicate so easily with you guys, and to be able to send pull requests straight to the dev page!!

[mrpollo]

@peterbarker can you review plz?

[hamishwillee]

FYI Most of the @njoubert question (#249 (comment)) is now answered here: https://discuss.dronekit.io/t/peripherals-mapping-between-accessory-port-pixhawk2-and-arducopter-parameters-to-connect-secondary-rtk-gps/198/2

[njoubert]

That's a good answer there, how about we incorporate some of that into the
dev page?

BUT!

• How do we connect sensors directly to the Pixhawk2? The serial ports are not supported on most solos?

-Niels

On Wed, Dec 30, 2015 at 2:03 PM, Hamish Willee [email protected]
wrote:

FYI Most of the @njoubert https://github.com/njoubert question (#249
(comment)
#249 (comment))
is now answered here:
https://discuss.dronekit.io/t/peripherals-mapping-between-accessory-port-pixhawk2-and-arducopter-parameters-to-connect-secondary-rtk-gps/198/2

—
Reply to this email directly or view it on GitHub
#249 (comment)
.

[proficnc]

Serial 2, (telem2) is on the accessory bay of all Solos, it connects directly to the Pixhawk 2

[hamishwillee]

Hi @njoubert

We'll be doing a lot more work on the dev guide in January ... this should all get incorporated then. Those are good questions too - keep posting them on the forums.

[hamishwillee]

@njoubert Should the "Peripheral Mapping" section be underneath the "Accessory Breakout Board" heading? ie isn't it just related to that board?

[njoubert]

There's more to it that just the breakout board - the developer also needs
to understand how the peripherals inside solo talk to each other. If she
doesn't, the developer can easily change the ArduCopter parameters to
disable, say, the Gimbal, without realizing it.

It's also worth it for the large dev community that currently understands
Pixhawk to have an understanding of how Pixhawk is integrated into the rest
of the peripherals on Solo. You really want to capture the strong dev
community around Pixhawk and ArduCopter and make it easy for them to
transition to Solo.

[mrpollo]

hey @njoubert can you help us by rebasing your work with the latest changes in master?, we had some problems with our tests before

[falense]

Issue #292 may be related.

[mrpollo]

closed in favor of #308