Cannot connect Pixhawk2 to Aero computer board via TTL Serial Port

[orshefi]

Followed this example to connect pixhawk serial mavlink to aero, it worked with pixhawk 1

When I tried to connect it with pixhawk 2 I couldn't get it to work.

I followed this tutorial:

https://www.intel.com/content/dam/support/us/en/documents/boardsandkits/aero/apu-161110-pixhawk-flight-guide.pdf

Also I checked the pixhawk2 firmware and hardware when I connected it to TTL FTDI cable and connected to the virtual comport with Mavproxy, the serial connection worked and the communication was good.

I have also tried all the serial ports available on the Aero SBC

Also I probed the serial line with an ocilloscope and the signal seemed to be clear and steady, there were no mismatches in parity or stop bits as well.

[lucasdemarchi]

what do you mean by "all the serial ports"? There's only one available

[orshefi]

I was just making sure the fpga isn't accidentally configured to route other serial through these pins, I worked with /dev/ttyS1

On Thu, Mar 22, 2018, 6:23 PM Lucas De Marchi notifications@github.com wrote:

what do you mean by "all the serial ports"? There's only one available

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/intel-aero/meta-intel-aero/issues/333#issuecomment-375368135, or mute the thread https://github.com/notifications/unsubscribe-auth/AQThcHfIxGYD8etIcA5WBosfjb52mGCBks5tg9AIgaJpZM4S2swZ .

[zehortigoza]

Did you stopped the mavlink-router? Other thing to try is to revert the workarround to make the UART to work at 921600bps: https://github.com/intel-aero/meta-intel-aero/commit/7ba677e246a9c84723ae3d62d2fd5c94ec05784f It will reduce the error rate in lower baudrates.