RPi3 B can't connect to Navio2

[Fabian]

Hi,

I just wanted to install/use my Navio but I’m not able to connect to the HAT.
I followed the steps at: https://docs.emlid.com/navio2/common/ardupilot/configuring-raspberry-pi/

Setup:

• Raspberry PI3 B
• Navio2
• Latest Emlid image (emlid-raspbian-20170922.img.xz)

When trying sudo emlid ardupilot the resulting screen shows under “Info”:
“Product: Seems like you booted without Navio properly screwed!”

But the navio2 is (tightly) screwed to the raspberry.

I followed some other topics here and tried sudo i2cdetect -y 1, that yields:

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- 77

And ls /proc/device-tree doesn’t show any “hat”.

Any idea how my raspberry can find the Navio2?

BR
Fabian

[Fabian]

Any ideas?
@emlid

[Fabian]

I tried different SD cards and different RPi 3 B - same outcome

[george.staroselskiy]

Could you please attach a photo of your Raspberry with Navio on?

[Fabian]

Hope this helps

[Fabian]

I just tried the new image. No change, still not recognizing the Navio2.

[Fabian]

@george.staroselskiy Do you see any incorrect / faulty setup on the picture?

[george.staroselskiy]

Seems alright. Could you please launch our examples in Navio2 repo and see if they work.

[Fabian]

I’ll do that.

• Just checked out: https://github.com/emlid/Navio2
• Built all examples in C++: fatal error: pipgio.h
• Installed PIGPIO (following: http://abyz.me.uk/rpi/pigpio/download.html, saw the comment in the README.md too late)
• Reboot
• sudo emlidtool ardupilot: still saying “Seems like you booted without Navio properly screwed”.
• Back to the C++ examples: No errors while building
• Executed all tests, (as sudo if required):
  • AccelGyroMag: Output looks reasonable
  • ADC: “Failed to write reg: Remote I/O error”
  • AHRS: Output looks reasonable
  • Barometer: Output looks reasonable
  • FRAM: Memory test not passed.
  • GPS: looks reasonable. (No fix, but no antenna mounted)
  • LED: Remote I/O error (and LED is not changing the color)
  • RCInput: Looks reasonable (but no RC attached)
  • Servo: Remote I/O error
    Maybe worthwile noticing: The I/O error messages changes between:
    Failed to write device(-1): Remote I/O error and Failed to write reg: Remote I/O error.
• Python examples (after installing the requirements):
  • AccelGyroMag: Output looks reasonable for both sensors
  • Barometer: Output looks reasonable
  • LED: Output looks reasonable, LED lights accordingly (but missing red)
  • Servo: IOError: [Errno 5] Input/Output error
  • ADC: Output looks reasonable
  • GPS: Output looks reasonable
  • RCInput: Output looks reasonable

Interesting that the LED (partly) works on the python example, but not on the C++ one.

But unfortunately it seems that the HAT is still not recognized properly.

@george.staroselskiy Thanks for your support!
.

[george.staroselskiy]

Thanks for doing all this work. That’s an awesome and thorough report that anyone can wish for.

Now I’ll need the output of these:

• lsmod | grep rcio
• dmesg | grep rcio
• sudo emlidtool rcio check

[Fabian]

, thanks!
Still looking for the issue…

• Run all 3 commands, realized that the rcio was outdated and
• Updated rcio via sudo emlidtool rcio update
• lsmod | grep rcio :

  rcio_spi         16384   0
  rcio_core        36864   1 rcio_spi
  

• dmesg | grep rcio:

  [    4.091899] rcio_core: loading out-of-tree module taints kernel.
  [    4.122593] rcio spi1.0: rcio_status: Firmware CRC: 0xb09979ae
  [    4.123820] rcio spi1.0: rcio_status: Board type: 0x0 (navio2)
  [    4.125188] rcio spi1.0: rcio_status: Git hash: dae830a
  [    4.126995] rcio spi1.0: rcio_pwm: Advanced frequency configuration is supported on this firmware
  [    4.131009] rcio spi1.0: rcio_pwm: updated freq on grp 0 to 50
  [    4.131933] rcio spi1.0: rcio_pwm: updated freq on grp 1 to 50
  [    4.135312] rcio spi1.0: rcio_pwm: updated freq on grp 2 to 50
  [    4.136312] rcio spi1.0: rcio_pwm: updated freq on grp 3 to 50
  [    4.156199] rcio spi1.0: rcio_pwm: PWM probe success
  [    4.158217] rcio spi1.0: rcio_gpio: GPIO is supported on this firmware
  [    4.158308] rcio spi1.0: rcio_gpio: registered gpio module
  [    4.162319] rcio spi1.0: rcio_gpio: gpiochip added successfully under gpio500
  

• sudo emlidtool rcio check:

  Nothing to update! You are using the newest firmware.
  

I re-ran the tests (clean build) with same results.

[george.staroselskiy]

Could you please launch sudo arducopter -A udp:<your ip>:14550 and launch MP or QGC and see if it connects?