Re: [Paparazzi-devel] Re: trouble getting started...

[Thomas Wuensche]

Hello Martin,

thanks for the information. I'm working with booz hw here and
there both is the scenario with the USB/serial converter for
the bootloader (which we built ourselves) and the USB on the
LPC2148. I was not aware about the picoblade, assuming it
would be the USB converter. As booz has a regular USB connector
I had not recognized there is a special adapter cable for twog
(with a stylish name like picoblade).

Sorry for the confusion.

Maybe at least my second comment on the power consumption can help.

Regards, Thomas

Martin Mueller wrote:
> Hi Thomas,
> 
>> without knowing the hardware in detail I would say that if
>>
>> - other devices are registered on USB in your setup
>> - connecting the USB adapter for paparazzi is not registered
>>
>> then you have to search for problems with the USB adapter,
>> not the autopilot. You should see the results of connecting
>> any USB device by following the system message log with
>>
>> tail -f /var/log/messages
>>
>> typically.
>>
>> As I guess the picoblade is a USB-serial converter, this
>> should be registered on USB independent of what you connect
>> on the other side.
> 
>> This reminds me of another possible problem. Until the (bus powered)
>> USB device is registered and has registered a high current consumption
>> ...
> 
> the picoblade adapter is an USB-connector to Molex (picoblade) cable, no 
> electronics included. The TWOGs LPC2148 does have its own USB function 
> (device) that is used for download, it is not self powered.
> 
> Martin
> 
> 
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