Bitcraze Forums

Great..
This is all making sense now.
Thanks for your help.

It looks like each of the processors are wired so that either can control the other's SWD through SPI; however, apparently in both cases swdInit() (which initializes the corresponding pins for that purpose) is not called. So both are wired to control each other via SWD, but this function is not impl...

Pins STM_SWCLK & STM_SWIO are initialized by swdInit() which as best I can tell, is not called.
Am I correct to assume that SWD from nRF51 to STM32 using SPI is not yet implemented?

Am I correct to assume that the NRF cannot be programmed through USB?

Thanks very much for the detail!
I'll have to digest this, then I may have more questions...
Again, thanks alot...
Ed

I'd like to peek at the bootloader source code, so I found https://github.com/bitcraze/crazyflie-bootloader, but the readme.md says: Note: This is the bootloader for the first Crazyflie nano quadcopter. Crazyflie 2.x has a different bootloader. For some reason no bootloader is listed at the top leve...

Hi, I am new (couple weeks) to crazyflie. I have a crazyflie2.1 and before I do any programming I wanna make sure I understand all the options for programming the two processors. Basically I wanna make sure I don't 'brick' anything. Is there any documentation on these different configurations? Seems...

Great, thanks very much!

Is there a searchable version of the schematic?
I know it's only 3 pages, but there's still a lot of pins!
Ed

@tobias/arnaud, Thanks for the info! I was able to restore both bootloader and crazyflie with DFU. I did have to build crazyflie from scratch, but that's ok. Then, just to be sure I was flying with valid firmware (as you suggested), I used cfclient to reload the latest image taken from the dropdown ...