Search found 11 matches

by Maxzor
Tue Jul 05, 2016 8:19 am
Forum: Developer Discussions
Topic: Can MPU9250 output to STM32F4 via SPI?
Replies: 11
Views: 3131

Re: Can MPU9250 output to STM32F4 via SPI?

Looks great, but after having been busy migrating some racer builds to betaflight and raceflight, you might prefer to hold on for now...
I will see if I am able to do something with the current hardware configuration : 8kHz gyro interrupt is already something :)
Best regards.
by Maxzor
Wed Jun 29, 2016 2:28 pm
Forum: Developer Discussions
Topic: Can MPU9250 output to STM32F4 via SPI?
Replies: 11
Views: 3131

Re: Can MPU9250 output to STM32F4 via SPI?

After overnight thought yes.
I could do the dirty ASM/C job porting Raceflight to it and comparing at home with your very nice updated flight control code.
Left to you to then further measure any significant improvement, since you are miles away from my electromechanical engineering skills :)
by Maxzor
Mon Jun 27, 2016 7:48 pm
Forum: Developer Discussions
Topic: Can MPU9250 output to STM32F4 via SPI?
Replies: 11
Views: 3131

Re: Can MPU9250 output to STM32F4 via SPI?

Well 8kHz is indeed hat is displayed on the Invensense datasheet but Raceflight guys on RCGroups swear upon their parent's head that they get real 32kHz sampling from it. I guess most of the progress is obtained with higher PWM rates between ESC and motor. Raceflight runs up to 32kHz gyro interrup/f...
by Maxzor
Mon Jun 27, 2016 2:33 pm
Forum: Developer Discussions
Topic: Can MPU9250 output to STM32F4 via SPI?
Replies: 11
Views: 3131

Re: Can MPU9250 output to STM32F4 via SPI?

It is definitely the land of diminishing returns, but 32kHz appears to reduce aliasing even further and is being quite adopted by the FPV racing professionals!
Ty for information still!
by Maxzor
Mon Jun 27, 2016 1:24 pm
Forum: Developer Discussions
Topic: Can MPU9250 output to STM32F4 via SPI?
Replies: 11
Views: 3131

Re: Can MPU9250 output to STM32F4 via SPI?

Was wondering if Raceflight software running 32kHz interrupts from gyro, could be ported on the crazyflie.
At the moment this is the only F4 board I have and I love the project. But with I²C gyro output is capped at 2kHz.
Bad luck, on the Crazyflie 3.0 maybe! :)
by Maxzor
Mon Jun 27, 2016 10:11 am
Forum: Developer Discussions
Topic: Can MPU9250 output to STM32F4 via SPI?
Replies: 11
Views: 3131

Can MPU9250 output to STM32F4 via SPI?

Hello,
topic,
Best regards
by Maxzor
Fri Jun 03, 2016 7:10 pm
Forum: General discussions
Topic: 3dprinted prop guard and motor mounts
Replies: 8
Views: 3513

Re: 3dprinted prop guard and motor mounts

Great job!
by Maxzor
Sat Apr 09, 2016 10:21 am
Forum: General discussions
Topic: Big quad deck & UART
Replies: 1
Views: 1044

Big quad deck & UART

Hello, I have a project about thrust vectoring quad. I aim at managing 16 smart servos (Dynamixels probably) to tilt motors, wing angle for forward flight, and flight control surfaces. There is a dedicated controller at robotis (opencm 9.04) which connects through UART with the flight controller, an...
by Maxzor
Fri Feb 19, 2016 10:41 pm
Forum: Support
Topic: Radio dongle and windows10
Replies: 5
Views: 1794

Radio dongle and windows10

Hello,
Is the radio PA working on windows 10 laptops?
by Maxzor
Tue Feb 09, 2016 12:17 am
Forum: General discussions
Topic: Crazy PA and software-defined-radio
Replies: 2
Views: 1566

Re: Crazy PA and software-defined-radio

Thank you Tobias!

Have you also any input about how far the Crazyradio is from pairing with a classic 2.4GHz GFSK transmitter?