Re: [Paparazzi-devel] Booz PCBs from Eurocircuits

[Marko Thaler]

Hello Poine,

On May 7, 2010, at 11:25 AM, antoine drouin wrote:

> Boards should be available already assembled in a couple of weeks.
> I'll let you know as soon as I have more details

Thank you! I very much appreciate it.

> I had considered the LPC1768 in place of the STM32F103 when I started
> to design Lisa. I chose the STM32 because of the nice peripheral lib
> and also because it's available in numerous packages (for QFN36, to
> BGA64, BGA100 up to huge QFP 144).

I agree. We used the LPC because of previous experience with this MCU  
family. STM32 is also quite alluring because of the CAN-bus and the  
possibility to use it for motor control.

> At the moment, the Booz code is happily running on Lisa/L in the STM32
> and the poor MCU  is very bored.

Now that we have such a powerful MCU it will be interesting to make a  
quantitive analysis of the quad hover/control performance with regards  
to different control loop update rates and used filters. I suspect the  
hover/control performance could also be increased with stiffening the  
props and reducing their moments of inertia.

Regards

Marko