I am starting this discussion to post information for testing the Px4 platform.
Most of the discussion is currently in the APM vs Px4 thread. ArduCopter on the Px4 is a work in progressand has made great progress. I have Arducopter on a Px4 Fmu board
Timecop's port of Multiwii to STM32 should work on the PX4 with some changes to put the mpu6000 in to I2c mode and use it as a Mpu6050 ,or a new Multiwii driver for Mpu6000.
The latest version of his Naze32 is using the Mpu6050, HMC5883 and Read more…
I was not able to find any discussion of the DMP since it was released .
So I gave it a try with the latest fixes from the Git trunk. since it turned out 2.7.4 Beta from downloads had a bug with DMP init freezing.
On setup their is a slight offs
While updating to AC2.7 the 2560 Bootloader got corrupted and would not work.
I have tried to flash the Arduino Bootloader over the ICSP but have too many errors.
Alot of fustrating time later I have to give up. I tried different Programers
After playing with Mp and APM2 looking for the CH6_opt for tuning as described in the wiki I started looking at the source.
I see the CH7_opt can be defined in the config file but no mention of the CH6 and the box does not seem to exist in the cu