[Paparazzi-devel] 回覆: Re: ardrone2_raw s tarts but doesn't fly

[skw0430.skw0906]

Freek van Tienen <address@hidden>提到：

>2013/10/7 Ben Laurie <address@hidden>
>
>> On 7 October 2013 10:23, Christophe De Wagter <address@hidden> wrote:
>> > You "bricked" your flight-recorder?
>>
>> Well, maybe - but I didn't actually do anything to it between working
>> and not-working. :-)
>>
>> Does the ardrone reset it, do you think?
>>
>
>Yes the ardrone original software does reset and also configure it.
>
>>
>> > If you can not manually configure the "ublox6***" in ucenter, then the AP
>> > module will not be able to do it either.
>>
>> It wasn't clear to me how to manually configure it to do UBX in
>> ucenter, tho the fact other functions didn't work made me suspect I
>> wasn't going to be able to even if I knew how - do you know how?
>>
>> > In some cases, the baudrate of usb devices is not important but in many
>> > cases it still is. (e.g. usb->serial converters like the prolific chip in
>> > the flightrecorder)
>>
>> Ah, sure.
>>
>> > Even if the position fix is way to slow, there is no reason to fall out
>> of
>> > the sky. It might be unstable and constantly move left/right but if it
>> falls
>> > out of the sky you probably should reduce the max-bank angle to start
>> with.
>>
>> I'll give that a try. What setting(s) would I change to make it
>> generally fly less aggressively?
>>
>
>MAX_BANK inside the GUIDANCE_H of your airframe file. Start with that.
>
>>
>> > And if after take-off it moves laterally instantly, then make sure your
>> > accelerometer neutrals are calibrated correctly.
>>
>> It doesn't - it hovers for a short while, then heads off. But I guess
>> I should calibrate everything, too!
>
>
>> Oh, I forgot to mention another issue - because the ardrone upload
>> includes the kernel driver for u-blox, you have to plug in the GPS
>> _after_ the upload, or it isn't recognised.
>>
>
>Yes that's right, we haven't fixed that yet because we use a ttyUSB cable
>instead of direct ttyACM which is available at some uBlox GPS'.
>
>BTW. Do you have the logs of the flight? Because I'm really curious about
>what happened.
>
>>
>> >
>