Re: [Paparazzi-devel] Problem executing firmware on YAPA after uploading

[limaiem imed]

Hi,

• When you uploaded the firmware, the computer senses the micro-controller throughout out the USB port. 
• When you start your autopilot, the GCS (computer) will talk to the modem throughout the USB port

if the GCS returns Failure("Error opening modem serial device : fd < 0 (/dev/ttyUSB0)") it means that your modem is not sending data ! are you sure that your modem is correctly wired and your code is correctly programmed ?

Is your autopilot working as expected ? I think that in YAYA2 you should see the green led flashing in your board when the model is trying to talk ... 

hope this could help

Imed LIMAIEM
address@hidden

On Wed, Nov 30, 2011 at 11:37 PM, Jorn Anke <address@hidden> wrote:

Hi

I have compiled and successfully uploaded firmware to my YAPA. Then, when I try executing the firmware, the GCS opens black, and I do receive the error message:  Failure("Error opening modem serial device : fd < 0 (/dev/ttyUSB0)") when I try to connect via usb.

What I don't understand is how the usb connection can not been found when trying to execute, - since the same usb connection appears to have been ok when uploading firmware. (When uploading, I first connected usb, then power. Before executing, I have both tried connecting usb and battery firest, with same outcome).

Here is a short section of the messages from the Paparazzi center:

Found USB device
BootROM code: 2.13
Part ID: 0x0402FF25 (LPC2148, 512k Flash, 32k+8k RAM)
BootLoader version: 1.3
#
Starting software at 0x00004000
make[1]: Leaving directory `/home/jorn/paparazzi/sw/airborne'
make: Leaving directory `/home/jorn/paparazzi'

DONE (exec make -C /home/jorn/paparazzi -f Makefile.ac AIRCRAFT=Foamaroo tunnel.upload  2>&1)

Run '/home/jorn/paparazzi/sw/ground_segment/tmtc/link  -d /dev/ttyUSB0 -s 57600'
Run '/home/jorn/paparazzi/sw/ground_segment/tmtc/server '
Run '/home/jorn/paparazzi/sw/ground_segment/cockpit/gcs '
Failure("Error opening modem serial device : fd < 0 (/dev/ttyUSB0)")
Broadcasting on network 127.255.255.255, port 2010


Any help would be appreciated,

Jørn


PS: When using the Update Manager on Ubuntu 11.10 for updating the system, I receive the following message;

Requires installation of untrusted packages
The action would require the installation of packages from not authenticated sources.

Details:
(Various complaints about IVY), e.g: "ivy-c ivy-c-dev ivy-python lpc21isp"

I don't think this is related to the first mentioned problem. I would however appreciate hints about how to get rid of this problem also.

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