Another "No Connection" Problem

[vman]

Hi Autoquad users,

I'm building my first Autoquad driven Quadcopter and it seems that I stumble in the beginning. I have soldered the JP3/4 and FTDI header and powered my Board. I have a Flyduino USB-UART- CP2012. I Installed QGroundControl V1.3 RC1 on my system (Win7 64 Bit) and downloaded the AQ Compiled Firmware - Version v6.6.1 stable (b1036) for board rev. 1 & 2

I successfully flashed the Autoquad Board with rev.2 (successful in this case means that the flashing process was visible in the small log window under the "Flash Firmware" button, showing writing and verifying process with now errors. At the end a messega window asks to restart the AQ board).

I connect the cable from USB-UART Autoquad pin header to the FTDI pin header of the AQ board and made a new communication link with these settings (see screen shot for all settings):

Baud: 115200
Flow Control: Active

When I connect the log window shows "connect", but thats all.

BTW: I think I have the AQ Board rev.2, but how can I be sure? I did not find any information about that on the board itself.

Any help is welcome

Dierk

[Jdmagoo]

Disable flow control

[vman]

I did this already with no success. I also tried different baud rates with no success. I read in another forum that a user has the same problem. He solved it by compiling QGroungControl from sources. Unfortunately I don't know how to do this.

[Jdmagoo]

Have you got the correct drivers installed for the USB UART? And if your using the flyduino adapter make sure you have the cable connected to the AQ side.

Once the drivers are installed connect it all up including power to the board then open QGC you should see UART as an option from the drop down menu in the connection window.

[Max]

[vman]

[vman]

[LPR]

Dierk

On one of the AQ boards I've used I had a similar problem connecting to a PC. I finally cleaned the board with alcohol and checked that is was cleaned with magnification. Then it worked.
You could reflash the firmware also.

Larry

[Max]

[ABL]

Hi,
the same problem here. Rev. 1 board, several FTDI adapters, also cp2102.
I downloaded latest qgroundcontrol, firmware from site, connected FTDI, powered board. Flashed firmware without issues. And now:
- i see that board is working - LED's are blinking
- there are logs in SD card, they show correct FW version, so i know that firmware update trough the same FTDI cable succeeded (yes, i removed jumper)
- if i try to connect with putty to the same port - i get mavlink data - it's transferred, i can even log them
- changing to different FTDI adapters or cp2102 (rx/tx/gnd only) does not change things

All i get in QgroundControl is:
Link serial port \\.\COM5 is unconnected.
Link serial port \\.\COM5 is connected.
(COM5 is my USB-TTL adapter)
No data, nothing. If i could not connect to the same board, the same adapter with putty (and get data) - i would say that board isn't working or my connections aren't correct.
But now everything looks OK. I tried older QGC version, available in downloads - still the same problem.
I attached procmon output - tracing only qgroundcontrol process when i press "connect" (COM5, 8N1, Flow control on/off, does not matter, etc).

EDIT - RESOLVED: Not reading enough - need to disconnect DTR PIN...