SPI unable to open

[oscarjgv24]

Hi,

I am trying to run it in the Beaglebone Blue... I tried using the image provided in (https://github.com/mirkix/ardupilotblue) and at first it ran correctly but then it gave an error of No INS backend available.

I am having the following error

root@beaglebone:/home/debian# /home/debian/arducopter -C udp:192.168.137.1:14550
SPI: unable to open SPI bus /dev/spidev2.1: No such file or directory

I checked the /dev folder and spidev2.1 is not there,

I would assume is just a matter of changing it but I am thinking maybe I missed something. I ran all the steps in (https://github.com/mirkix/BBBMINI/blob/master/doc/software/software.md).

Any suggestions?

Regards,
Oscar

[patrickpoirier51]

Looks like you do not have the correct binary... this one is looking for SPI connected sensors that are on the BBBMINI not on the BBBlue.
Concerning the initial error - No INS backend-- is probably because you need root privileges to run , this is why the wiki examples are using sudo.
You should use gitter for these type of question: https://gitter.im/mirkix/BBBMINI
Regards

[oscarjgv24]

Hi @patrickpoirier51 ,

Yes. This was my bad. I followed the suggestions in ([1]https://github.com/mirkix/BBBMINI/blob/master/doc/software/software.md) to the letter but they are for BBBMINI as you suggested.

I corrected this by avoiding step 16 in [1] and selecting board=blue in step [4] of compiling.

I got confused because this process is not described in ([2] https://github.com/mirkix/ardupilotblue) since it provides the image but I wanted to build it for myself.

As for the No INS backend, I don't know what was exactly but when I ran all the steps in [2] then all the compiling steps in [1], it worked.

And thank you Patrick. I didn't know about gitter but I have joined now. I will be posting any relevant problem or solution there.

Regards,
Oscar

[juvinski]

hi @OscarJGV26 ,

BBBMini use spi for 9DOF sensor while BBBBlue use just i2c for both 9DOF and Baro, that is the reason you are having this troubles.

[oscarjgv24]

hi @juvinski

Yes. I realized I made that mistake on selecting board=blue and also, I assume, loading wrong cape layout in step 16.

Thank you very much.