Bitcraze Forums

Hi guys, I'm hacking my CF2 and I noticed that my hardware is a Revision D, while the released schematics are Revision C. I noticed also that there is a flag in the crazyflie-firmware makefile (release version) that refers to the revision. 1) Which are the differences between the two revisions? Is t...

No way! I have followed your order, with this procedure: 1) flashed crazyflie2-nrf-firmware (release version) on the NRF: 'make' + 'make factory_reset' 2) I had to halt the NRF by hand (through openocd 'reset halt') 3) flashed crazyflie2-stm-bootloader (release version) on the STM32F4: 'make' + 'mak...

Hi arnaud,
thanks for the answer.

Unfortunately I cannot flash the STM32 after the NRF: it seems that openocd doesnt't connect at all to the STM32 if there is something in the NRF flash (conversely, if I mass_erase the NRF flash I can connect again). Strange!

I have tried etiher compiling the NRF firmware with BLE=0 and without. Same results... the board is stucked with the nrf BLUE LED on.

I mass erased everything from the two chips, so I have to flash all from scratch.

Hi guys, I'm trying to hack my CF2 using an SWD programmer (from the ST nucleo board) and openocd. I can flash the software easily using either openocd via telnet or using the Makefile (make flash etc etc.). I'm experiencing a lot of trouble with the firmware... I have flashed, in this order: - craz...

I'm trying to use the whoenig code on github (with an optitrack mocap at 200fps) and can't control properly the copter.
The PID parameters are 4000, 3000, 2000.

Any idea?

Hi whoenig, I have closed the loop, so now I can takeoff and land by rosservice. Now it's starting the core: the control. The crazyflie it's very unstable and doesn't seems controlled in position. The reasons could be many: wrong frequency of the pose infos by the mocap, weak calibration of the moca...

Thanks whoenig. I did some steps further, using your client. I do not have a Vicon but an Optitrack system, so I'm adapting your launch file. I'm experiencing some problems with controller.py. The error is following: "Could not transform from /world to /Robot_1/pose" Robot_1/pose is the Po...

Hi whoenig, I'm experimenting with your code from github (crazyflie_ros package on ROS indigo and Ubuntu 14, with one crazyradio PA and two CFs). I flashed new firmware on nrf51 and stm32 to allow the multi-addressing mode. Using the default branch of crazyflie-clients-python from github I can see a...

Thanks Chad. AWESOME!

I didn't still understand if I have to compile and flash on the CFs the latest version of the firmware to use the addressing feature explained in the blog's post.
Any Idea?

Is it specifically needed to re-program the nrf51?